SANY SRT45 Off-Highway Truck. Safety,Operation and Maintenance Manual (2014)

Controls and Operating

3 CONTROLS AND OPERATING

3.1 Controls and Instruments

！

Fig 3-1

1. Air outlet

8. Emergency brake button

15. Service brake pedal

9.Botton of solenoid valve

2. Combination instrument

16. Ignition key switch

for body stably control

3. Reversing monitor

10. Cigar lighter

17. Steering column assembly

4. Air outlet

11. Accelerator pedal

18. Horn

5. Air outlet

12. Gear shift lever

19. Combination switch

6. Switch

13. Transmission retarder switch

20. Air conditioner control

7. Radio / MP3

14. Retarder lever

21. Body control lever

3-1

Controls and Operating

9 10 11

12 13

！

Fig 3-2

3.2 Indicator

1. Left steering indicator (green) - Flashes

when the left indicator lights are operating.

2. Parking brake (red)-Illuminates when the

parking brake is applied.

3. Body up (Yellow) - Illuminates to indicate

that the body is NOT resting on the chassis.

Never move the machine until this light goes

OUT.

4. Retarder indicator (yellow) - Illuminates

when the retarder is applied.

5. Side marker lamp (yellow) - Such lamp will

be on when side marker lamp starts to work.

6. Dipped beam Indicator (green)-Illuminates

when dipped beam start to work.

7. High beam indicator (blue)-Illuminates when

high beam start to work.

8. Fog indicator (yellow) - Such lamp will be on

when fog lamps start to work.

3-2

Controls and Operating

9. Engine stop indicator (red)- Illuminates

when rear lamps start to work.

10. Engine Stop Indicator Red) - When the

'Stop' indicator comes on, the computer has

detected a major malfunction in the engine

that requires immediate attention.

Stop the machine when this light illuminates

and do not operate until the fault is removed.

11. Engine maintenance indicator (white)-

Indicates that the engine needs to be

maintained. See Cummins Manual for details

about specific maintenance items.

12. Engine warning indicator (yellow) -

When the 'Warning' indicator comes on, the

computer has detected a fault in the engine

which may result in a power loss. The fault

should be diagnosed and removed at the

earliest opportunity.

13. Right steering indicator (green)- Flashes

when the right indicator lights are operating.

14. Alternator charging (red) - Illuminates to

indicate when the alternator is not charging.

15. Transmission over speed indicator (red)

- Illuminates when the transmission ECU

senses engine speed above 2350 rev/min.

16. Transmission over speed indicator-

Illuminates when the transmission is in Torque

Converter drive. It goes OUT when Lockup is

engaged.

17. Check trans indicator (red) - Illuminates to

alert of a fault in the transmission shift system

or abnormal transmission temperature. The

light will illuminate when the ignition key switch

is turned to position '1' to provide a bulb and

system check and should go off a few seconds

after the engine is started.

3-3

Controls and Operating

！

Fig 3-3

3.3 Instruments

1. Tachometer

Driven by CAN bus; it indicates engine speed

in revolutions per minute. When the pointer

is located in white area said speed is normal,

and once the pointer is located in red area

that speed is too high, should reduce speed

SANY MINING EQUIPMENT

immediately.

2. Speedometer

Driven by CAN bus; it indicates vehicle

Fig 3-3.1

running speed. When the pointer is located in

white area said speed is normal, and once the

pointer is located in red area that speed is too

high, should reduce speed immediately.

3. Transmission oil temperature gauge

The pointer indicates transmission oil

temperature value. Such meter is directly

connected to transmission temperature

sensor. When the pointer is located in white

area said transmission oil temperature is

normal, and once the pointer is located in red

area that transmission oil temperature is too

3-4

Controls and Operating

high, movement, the buzzer for 10 seconds,

then shut down automatically. In the electric

power the same fault buzzer action only once.

08-25-2012

15:10:25

Wed

SANY Mining Equipment

4. Fuel level gauge

The pointer indicates percent of full tank

Engine

Transmission

a actual fuel level. Such meter is directly

Monitor

connected to fuel level sensor. When the

VEH DIST

ENG HRS

pointer is located in white area said fuel level

XXXXXX

XXXXX.Xh

is normal, and once the pointer is located in

red area that fuel level is too low, movement,

the buzzer for 10 seconds, then shut down

automatically. In the electric power the same

Fig 3-3.2

fault buzzer action only once.

5. Display

1. Turn on power supply, start the key switch

toΙ, the display shows "sany " boot screen(see

System Function

SANYI

fig3-3.1), and all of the signal indicators are

Engine information

Parameters query

applied, 3 seconds after the display shows

Parameters setting

Monitoring system

work interface, the lights go out at the same

Restore password

Controller I/O

Backlight adjust

time.

System time setting

Buzzer time setting

Chinese

English

2. Click F2 key to change from work interface

to system function interface, and the work

F1:ESC F2:Enter F3:

F4:

interface is default(see fig3-3.2).

3. Enter the system function interface, F1 key

to return, F2 key for confirmation key, the F3

key to move up, and F4 for down key(see fig3-

Fig 3-3.3

3.3),.

4. Under the system function interface, click

the F3 key or F4 key to choose the function

and click F2 key to confirm.

Take the case of setting system time to

System Time Setting

SANYI

demonstrate operation method.

Under the system function interface:

2012Y08M13D

a. click F3 key or F4 key to choose the number

12H30M25S

of the time;

b. click F2 key to confirm, then the cursor will

automatically move to the next number(see

F1: ESC F2: Enter F 3:

F4:

fig3-3.4);

c. When the cursor to the last digit (the second

single digits) , click F2 key to confirm the

current changes, and then click F2 key again

Fig 3-3.4

to end the modify Settings until appear a

3-5

Controls and Operating

square green claim(see fig3-3.5),

d. Click F1 key to return to the system function

interface.

6. Engine Water Temperature Gauge

System Time Setting

Driven by CAN bus; it indicates engine coolant

SANYI

temperature value. When the pointer is located

in white area said engine coolant temperature

2012Y08M13D

is normal, and once the pointer is located in

12H30M25S

red area that engine coolant temperature is too

high, movement, the buzzer for 10 seconds,

then shut down automatically. In the electric

F1: ESC F2: Enter F 3:

F4:

power the same fault buzzer action only once.

7. Engine Oil Pressure Gauge

Fig 3-3.5

Driven by CAN bus; it indicates engine oil

pressure value. When the pointer is located in

white area said engine oil pressure is normal,

and once the pointer is located in red area that

engine oil pressure is too high, movement,

the buzzer for 10 seconds, then shut down

automatically. In the electric power the same

fault buzzer action only once.

3.4 Reversing monitor system

Power Supply

Indicator

The monitor (see Fig 3-4) on instrument panel

Power

Supply

is mainly used for monitoring the reversing

truck as well as watching the situation behind

č+Ď

truck. The matching camera is at the rear part

č-Ď

Mirror

of truck.

/Normal

Operation instructions:

Light

1.Power supply switch

Sensor

There are two methods available for turning

on the monitor: The monitor will be turned on

Fig 3-4

automatically when the transmission gear shift

selector is placed at REVERSE position; press

down the power supply key on monitor to turn

on the monitor, and press again to turn off the

monitor.

The power supply indicator(red) will be on

when the monitor is turned on and it will be off

when the monitor is turned off.

2.Contrast control

3-6

Controls and Operating

Press the MENU key until contrast appears

on the screen, then press “+” or “-” key to

increase or decrease image contrast.

3.Brightness control

Press the MENU key until brightness appears

on the screen, then press “+” or “-” key to

increase or decrease image brightness.

4.Volume control

Press the MENU key until volume appears

on the screen, then press “+” or “-” key to

increase or decrease volume.

5.Mirror/ Normal selection

Press such button to set reversal effect of

image.

Reversal image can be displayed when switch

is placed at MIR position.

Normal image can be displayed when switch

is placed at the NOR position.

3.5 Switches

Fig 3-5

1. Economical/Powerful mode switch

Allows the operator to select between the

transmission 'POWER' and 'ECONOMY' shift

schedules.

Caution: Move the transmission shift lever to

Neutral before selecting schedule.

2. Parking brake switch

The driver can perform rear braking

independently. Such brake can be used for

load parking or stopping.

3. Hazard warning lamp switch

Press bottom of switch to make four steering

3-7

Controls and Operating

lamp flash simultaneous; press the top of the

switch to turn them off.

4. Headlamp switch

Press the bottom of the switch to electrify

the headlamp ( dipped beam/high beam);

the dipped beam/high beam of the combined

switch will be effective; otherwise, they will be

ineffective.

5. Fog lamp switch

Press switch bottom to turn on the rear fog

lamp. Press the upper part of switch to turn off

the rear fog lamp.

6. Clearance lamp switch

Press switch bottom to turn on the front and

rear clearance lamp. Press down the upper

part of switch to turn off the lamp.

7. Rear lamp switch

Press switch bottom to turn on rear lamp,

Press down the upper part of switch to turn off

rear lamp.

8. Small lamp switch

Press switch bottom to turn on rocker switch

indicator. Press down the upper part of switch

to turn off indicator.

9. Backup Switch

10. Backup Switch

3.6 Combined switch

1. Horn

Button pushed in = Horn sounds.

2. Washer

Ring Pushed = Windscreen wash

3. Windscreen Wiper

Position J = Not used

Position 0 = Stop, reset wiper

Position I = Wiper slow speed

Position Ⅱ = Wiper fast speed

4. Headlight dipper and flasher

Control downwards = Main beam

Neutral position = Dipped beam

Control upwards = Headlight flash

Fig 3.6

3-8

Controls and Operating

3.7 Air Conditioner Control Panel

Set up

Fig 3.7

1. Panel display instructions

Set up

Refrigeration mode

Heat mode

Circulating mode

Defrosting mode

Blower mode

Fig 3.7.1

2. Panel key-press instructions

ON/OFF

Auto/ Manual

Refrigeration/ Heat

key-press

Defrosting

Blower mode

Air circulating key-press

key-press

Wind speed

Temperature adjusting

key-press

Fig 3.7.2

3. Operation instructions

a. Open

Press power supply key to turn on the

machine; the controller will automatically

select the working mode according to the air

conditioning system inside truck; then press

power supply key to turn off power supply and

all the outputs.

b. Blower mode

Press mode key to set air conditioner working

mode (automatic, refrigerating, heating,

3-9

Controls and Operating

ventilating).

c. Refrigeration

Forced refrigerating function:

1. On blower mode, press Refrigeration/ Heat

key-press, air conditioner is on refrigeration

statues, LO will be displayed to activate forced

refrigerating mode when the temperature is

set smaller than 15℃ (larger than 30℃ ) under

refrigerating mode. On refrigeration statues,

press wind speed key-press can adjust wind

speed(low、middle and high).

2. On refrigeration statues, wind speed is on

high(wind speed and night mode can adjust

but temperature can not).

d. Heating mode

Forced heating function: HI will be displayed

to activate forced heating mode when the

temperature is set larger than 30

℃ (smaller

than 15 ℃ ) under heating mode. On heating

statues, press wind speed key-press can

adjust wind speed(low、middle and high).

e. Defrosting mode

1. Press defrosting key-press, it is on defrosting

statues, press wind speed key-press can

adjust wind speed(low、middle and high).

2. Automatic defrosting function: During

refrigerating, the temperature of defrosting

sensor is smaller than 1.5℃ , the compressor

will turn off; it will turn on if the temperature of

defrosting sensor is smaller than 4℃ .On other

status it will enter core defrosting.

f. Press circulation key, i.e., fresh air function;

the external circulation is used for blowing

fresh air and the internal circulation for

stopping fresh air intake.

CAUTION

Air conditioner uses the manual

valve to control warm water, in

summer, must de sure the valve is

shut when refrigerate; in winter, must

be sure the valve is on when heat.

3-10

Controls and Operating

3.8 Driver Seat

1. The travel of suspension device is 100mm.

2. Body weight and height adjustment. Pull

up the seat can adjust height, there are three

levels(low、middle、high), when the seat is

on high level, if pull up the seat, it will return

low level. The adjusting handle (1) on seat can

adjust the rigidity of suspension mechanism,

(the green indication belt on body weight

adjustment indication strip is at a visible

position).

3. Front/rear adjustment. Pull handle (2) on

the right side to slide seat to a proper position.

The maximum front and rear adjustment

distance is 210mm.

4. Back angle adjustment. This is used to

Fig 3.8

make the driver lean tightly on the seat back.

Pull handle (3) on the left to move the back

to a proper position, and then put down the

handle. The back angle adjustment scope is

larger than 90° .

5. Headrest height adjustment. Adjustment

scope of 105mm (see Fig 3-8).

WARNING

Do not attempt to adjust the seat or

seat belt while the machine is moving.

Loss of control may result. Stop the

machine; apply the brakes;then adjust.

3.9 Seat Belt

Adjust the seat to the best height which does

not affect the driving. Completely release the

seat belt (1), sit down on the seat, pull out seat

belt (1), and buckle up lock catch (2). In order

to remove the seat belt, press the button on

lock catch (2) to pop up seat belt (1) (see Fig

Fig 3.9

3-9).

3-11

Controls and Operating

3.10 Truck Controls

！

Parking brake

Emergency

brake button

Service brake pedal

Fig 3.10

3.10.1 Braking

The truck is provided with following brake

methods: Service brake, parking brake,

emergency brake, retarder, which can be

selected according to the actual condition.

Use service brake during normal operation;

Use parking brake during stopping; Use

emergency brake in an emergency. A

continuous braking force to hold the truck to a

safe steady speed.

3.10.2 Service brake

This is a floor mounted pedal operated by the

right foot. Depress the pedal as required by

speed, load and road conditions to slow or

stop the machine. Release the pedal as the

machine slows until, when stopped, the pedal

is depressed just enough to hold it stationary.

(see Fig 3-10).

3-12

Controls and Operating

3.10.3 Parking brake

Pushing the switch in will apply the spring

operated parking brakes within the rear brake

assemblies and the service brakes at all

wheels. The parking brake indicator on the

combination instrument will illuminate when

the control is pushed in. Push the switch at top

to release the brakes.

WARNING

Always apply the parking brake before

leaving the operator's seat.

3.10.4 Emergency brake

Pushing the control switch in an emergency.

To release the brakes, turn the control

clockwise.

Note: Try to avoid using the control switch.

For normal braking the service brake pedal

should be employed.

3.10.5 Retarder

Refer to Fig3-11, this truck is equipped with

two retarders: the transmission retarder and

the rear disk brake retarder. The handle (2) is

used to control the rear disk brake retarder.

The transmission retarder switch (1) is used to

control the transmission retarder.

Retardation is the term used for applying a

continuous braking force to hold the truck

to a safe steady speed when descending

grades. The retarder may be used anytime

to slow down. If additional braking is required

apply the service brakes. The retarder is not

Fig 3.11

meant for bringing the machine to a halt, or

for sudden deceleration - the service brakes

should be employed for this purpose.

When the retarder is applied, the ' Retarder

Indicator Light ' on the instrument panel will

illuminate and an orange coloured warning

indicator at the rear of the truck will illuminate

to warn following trucks.

3-13

Controls and Operating

The retarder is off when the lever is fully

forward and is applied as the lever is pulled

back. Rear disc brake retarder can obtain

different retardation by shifting handle from

front to rear. Maximum retardation is obtained

when the lever is in the fully back position.

(1) Retarder operation

Before the machine crests the top of a grade

and starts down, the operator should slow the

machine with the service brakes and downshift

to the gear range which would be used to

ascend the grade. The retarder should be

applied before starting the descent. Machine

downgrade speed (with the retarder applied

as required) in the gear range selected should

be high enough to keep the engine operating

at governed speed with the throttle closed

(operator's foot off the accelerator pedal).

This will ensure maximum oil circulation and

cooling. If the rate of descent is too slow, the

transmission should be upshifted to the next

highest gear range. If the rate of descent is too

fast, the gear range selected is too high and

the operator must slow the machine by using

the service brakes, then downshift into a lower

gear range which will allow a safe descent and

efficient retarder operation.

The two retarders can be used at the same

time, it is strongly recommended that just one

of them is used and the transmission retarder

is prior. Only when maximum transmission

retardation is obtained and additional

retardation is required, the rear disk brake

retarder be used.

Note: In order to obtain the maximum

retardation and cooling effect during

retardation, the engine speed should be

maintained as high as possible without

exceeding the maximum recommendation.

(2) Oil temperature - rear disc brake

The disc brake hydraulic temperature warning

indicator on the instrument panel will illuminate

and an electric horn will sound if the oil flowing

through the disc brake assemblies overheats.

3-14

Controls and Operating

If alarm is activated, reduce downgrade travel

speed. If the trouble persists, stop the machine

and have the fault corrected.

(3) Oil temperature - transmission

During normal operation the transmission oil

temperature gauge should read in the white z-

one, should not enter the red zone. Otherwise,

reduce downgrade travel speed immediately to

avoid the oil overheating and possible damage

to the transmission.

WARNING

Great care should be used if applying

the retarder when road surfaces are

slippery. Retarder braking effect will

occur only at the driving axle and

could make truck control difficult.

3.11 Engine

3.11.1 Accelerator pedal

The accelerator pedal provides an electrical

signal to the engine's fuel control system in

proportion to the degree of pedal actuation.

(see Fig3-12).

Note: The electronically controlled engine

will override the accelerator pedal position

until the engine is warmed up to the correct

operating temperature. The engine MUST be

started with foot 'OFF' the accelerator pedal.

Fig 3.12

3.11.2 QUANTUM electronic fuel system

This machine is equipped with the Quantum

Electronic Fuel System, an electronic engine

control system, which continually monitors

the engine and warns the operator when a

problem develops. The system also takes

action to prevent damage to the engine and,

provides the serviceman with diagnostic

capabilities so that problems can be corrected

quickly and easily.

3-15

Controls and Operating

！

Fig 3.13

1.Electronic control module (ECM)

5. Stop indicator

2&3. Harness connector (50 and 31pin RHS)

6. Maintenance indicator

4. Accelerator pedal

7. Warning indicator

WARNING

Before any welding is done on a

machine equipped with the Quantum

Electronic Fuel System, disconnect the

following in this order:

Battery earth cable, battery supply

cable, alternator earth cables,

alternator supply cables, transmission

black box connector, ECM interface

harness connector (30 pin RHS), ECM

power harness connector (5 pin RHS)

and ECM sensor harness connector

(30 pin LHS). Turn off ignition key

switch to isolate the batteries before

disconnecting any components.

After welding connect all of the above

in the reverse order.

3-16

Controls and Operating

3.11.3 Quantum electronic fuel system -

description

1. Electronic Control Module (ECM)

Receives electronic inputs from the driver as

well as from mounted sensors that provide

information electronically, such as oil pressure

and temperature and intake manifold pressure.

This information is used to control both the

quantity of fuel injected and injection timing.

2. Programmable Read Only Memory

Located in the ECM and encoded with the

operating software. Additional information

is programmed into the EEPROM. This

information controls the horsepower rating,

torque curve, maximum engine speed and

engine protection devices. The ECM processes

this information and sends electronic signals

to the Electronic Fuel System Injectors where

the precise amount of fuel is injected into the

engine.

3.Electronic Fuel System Injectors

The injector is a lightweight, compact unit that

injects diesel fuel directly into the combustion

chamber. The amount of fuel injected and the

beginning of injection timing is determined by

the ECM. The ECM sends a command pulse

which activates the injector solenoid.

The injector performs four functions:

a - Creates the high fuel pressure required for

efficient injection.

b - Meters and injects the exact amount of fuel

required to handle the load.

c - Atomizes the fuel for mixing with the air in

the combustion chamber.

d - Permits continuous fuel flow for component

cooling.

Electronic fuel system injectors are self

compensating and virtually eliminate engine

tune-ups.

Note: Never apply 12V or 24V directly to

terminals on the injector as it will burn out.

Before removing injectors.

3-17

Controls and Operating

3.11.4 QUANTUM electronic fuel system

- operation

When the 'Stop' indicator on the dash panel

illuminates, the computer has detected a

major malfunction in the engine that requires

immediate attention. It is the operators

responsibility to shut down the engine to avoid

serious damage.

The machine is equipped with an engine

protection derate system, which records fault

codes when an out-of-range conditions is

found. The Maintenance indicator illuminates

when the engine protection derate system

is initiated. The engine power and speed

will be gradually reduced depending on the

level of severity of the out-of-range condition.

The Maintenance indicator will start to flash

if the out-of-range condition continues to get

worse. The operator MUST shut down the

engine to avoid serious damage,The engine

should not be restarted after it has been shut

down after activation of the engine protection

derate system unless the problem has been

diagnosed and corrected.

Conditions that will cause the amber

Maintenance indicator to come on are：Low

coolant level, High coolant temperature, Idle

validation/throttle pedal switch mismatch, High

intake manifold temperature, Low oil pressure

and High fuel rail pressure.

Whenever the 'Stop', 'Warning' or Maintenance

indicator comes on, the Electronic Fuel

System computer will determine where the

problem is and will store this information in

its memory. If the malfunction is intermittent,

the indicators will come on and go off as

the computer senses the changing engine

condition.

A special diagnostic data reader (INSITE) is

available that can be plugged into the engine

computer memory to extract information

related to the cause of the problem. Once

the malfunction has been corrected, the

3-18

Controls and Operating

Electronic Fuel System will return the engine

to normal operation. The data reader can now

distinguish between active codes and those

stored in the historic code memory (inactive

codes). Inactive codes can only be viewed

using the data reader. The fault code recorded

in the ECM memory will remain until it is

erased by a technician.

The operator can check for active faults by

turning the ignition key switch to the 'OFF'

position, switching the diagnostic switch

'ON' and then turning the ignition key switch

to position '1'. If no active fault codes are

recorded, all three ('Stop', 'Warning' &

Maintenance) indicators will come on and

stay on. If active codes are recorded, all three

indicators will come on momentarily. The

yellow ('Warning') and red ('Stop') indicators

will begin to flash the code of the recorded

fault. The fault codes flash in the following

sequence: the yellow indicator flashes once,

then there is a pause where both indicators

are off. Then the numbers of the recorded fault

code flash in red. There is a pause between

each number. When the number is done, the

yellow indicator flashes again. e.g. yellow

flashes once - pause - red flashes twice -

pause - red flashes three times - pause - red

flashes five times - pause - yellow flashes

once, indicates fault code 235. The number

will repeat in the same sequence until the

system is advanced to the next active fault

code or the diagnostic switch is switched to

the 'OFF' position.

Refer to 'Electronic Fuel System Diagnostic

Codes' table for fault code descriptions.

3-19

Controls and Operating

3.11.5 Electronic fuel system diagnostic codes

Detection Codes of Electronically Controlled Fuel System

Error Code

Description

Fault lamp

111

Engine Control Module - Critical internal failure

Red

Engine Speed/Position Sensor Circuit - lost both of two signals from the magnetic

115

Red

pickup sensor

Engine Speed/Position Sensor Circuit - lost one of two signals from the magnetic

121

Yellow

pickup sensor

122

Intake Manifold Pressure Sensor #1 Circuit - shorted high

Yellow

123

Intake Manifold Pressure Sensor #1 Circuit - shorted low

Yellow

131

Accelerator Pedal Position Sensor Circuit - shorted high

Red

132

Accelerator Pedal Position Sensor Circuit - shorted low

Red

133

Remote Accelerator Pedal Position Sensor Circuit - shorted high

Red

134

Remote Accelerator Pedal Position Sensor Circuit - shorted low

Red

135

Engine Oil Pressure Sensor Circuit - shorted high

Yellow

141

Engine Oil Pressure Sensor Circuit - shorted low

Yellow

143

Engine Oil Pressure Low - Warning

Yellow

144

Engine Coolant Temperature Sensor Circuit - shorted high

Yellow

145

Engine Coolant Temperature Sensor Circuit - shorted low

Yellow

147

Accelerator Pedal Position Sensor Circuit - low frequency

Red

148

Accelerator Pedal Position Sensor Circuit - high frequency

Red

151

Engine Coolant Temperature High - Critical

Red

153

Intake Manifold Temperature Sensor #1 Circuit - shorted high

Yellow

154

Intake Manifold Temperature Sensor #1 Circuit - shorted low

Yellow

155

Intake Manifold Temperature #1 High -Critical

Red

187

Sensor Supply Voltage #2 Circuit -shorted low

Yellow

Additional OEM/Vehicle Diagnostic Codes have been logged. Check other ECM's

211

None

for DTC's.

212

Engine Oil Temperature Sensor Circuit - shorted high

Yellow

213

Engine Oil Temperature Sensor Circuit - shorted low

Yellow

214

Engine Oil Temperature High - Critical

Red

219

Low Oil Level in the Centinel makeup oil tank

Maint.

221

Ambient Air Pressure Sensor Circuit - shorted high

Yellow

222

Ambient Air Pressure Sensor Circuit - shorted low

Yellow

223

Engine Oil Burn Valve Solenoid Circuit - shorted low

Yellow

227

Sensor Supply Voltage #2 Circuit - shorted high

Yellow

234

Engine Speed High - Critical

Red

3-20

Controls and Operating

235

Engine Coolant Level Low - Critical

Red

241

Vehicle Speed Sensor Circuit - data incorrect

Yellow

242

Vehicle Speed Sensor Circuit - tampering has been detected

Yellow

245

Fan Clutch Circuit - shorted low

Yellow

254

Fuel Shutoff Valve Circuit - shorted low

Red

255

Fuel Shutoff Valve Circuit - shorted high

Yellow

259

Fuel Shutoff Valve - stuck open

Red

Engine Speed/Position Sensor #1 (Crankshaft) Supply Voltage Circuit - shorted

284

Yellow

low

285

SAE J1939 Multiplexing PGN Timeout Error

Yellow

286

SAE J1939 Multiplexing Configuration Error

Yellow

287

SAE J1939 Multiplexing Accelerator Pedal Sensor System Error

Red

288

SAE J1939 Multiplexing Remote Throttle Data Error

Red

293

Auxiliary Temperature Sensor Input # 1 Circuit - shorted high

Yellow

294

Auxiliary Temperature Sensor Input # 1 Circuit - shorted low

Yellow

295

Ambient Air Pressure Sensor Circuit - data incorrect

Yellow

297

Auxiliary Pressure Sensor Input # 2 Circuit - shorted high

Yellow

298

Auxiliary Pressure Sensor Input # 2 Circuit - shorted low

Yellow

299

Engine Shutdown Commanded by J1939

Yellow

311

Injector Solenoid Valve Cylinder #1 Circuit - grounded circuit

Yellow

312

Injector Solenoid Valve Cylinder #5 Circuit - grounded circuit

Yellow

313

Injector Solenoid Valve Cylinder #3 Circuit - grounded circuit

Yellow

314

Injector Solenoid Valve Cylinder #6 Circuit - grounded circuit

Yellow

315

Injector Solenoid Valve Cylinder #2 Circuit - grounded circuit

Yellow

319

Real Time Clock - Power Interrupt

Maint.

341

Engine Control Module - data lost

Yellow

343

Engine Control Module - Warning internal hardware failure

Yellow

346

Engine Control Module - Warning Software error

Yellow

349

Transmission Output Shaft (Tailshaft) Speed High - Warning

Yellow

352

Sensor Supply Voltage #1 Circuit - shorted low

Yellow

378

Fueling Actuator #1 Circuit - open circuit

Yellow

379

Fueling Actuator #1 Circuit - grounded circuit

Yellow

386

Sensor Supply Voltage #1 Circuit - shorted high

Yellow

387

Accelerator Pedal Position Sensor Supply Voltage Circuit - shorted high

Yellow

394

Timing Actuator #1 Circuit - open circuit

Yellow

395

Timing Actuator #1 Circuit - grounded circuit

Yellow

396

Fueling Actuator #2 Circuit - open circuit

Yellow

3-21

Controls and Operating

397

Fueling Actuator #2 Circuit - grounded circuit

Yellow

398

Timing Actuator #2 Circuit - open circuit

Yellow

399

Timing Actuator #2 Circuit - grounded circuit

Yellow

415

Engine Oil Pressure Low - Critical

Red

WIF /

418

Water in Fuel Indicator High -Maintenance

Maint.

422

Engine Coolant Level Sensor Circuit - data incorrect

Yellow

426

SAE J1939 datalink - cannot transmit

None

428

Water in Fuel Sensor Circuit - shorted high

Yellow

429

Water in Fuel Sensor Circuit - shorted low

Yellow

431

Accelerator Pedal Idle Validation Circuit - data incorrect

Yellow

432

Accelerator Pedal Idle Validation Circuit - out of calibration

Red

433

Intake Manifold Pressure Sensor Circuit - data incorrect

Yellow

434

Power Lost without Ignition Off

Yellow

435

Engine Oil Pressure Sensor Circuit - data incorrect

Yellow

441

Battery #1 Voltage Low - Warning

Yellow

442

Battery #1 Voltage High - Warning

Yellow

443

Accelerator Pedal Position Sensor Supply Voltage Circuit - shorted low

Yellow

449

Fuel Pressure High - Warning

Yellow

451

Injector Metering Rail #1 Pressure Sensor Circuit - shorted high

Yellow

452

Injector Metering Rail #1 Pressure Sensor Circuit - shorted low

Yellow

466

Turbocharger #1 Wastegate Control Circuit - shorted low

Yellow

482

Fuel Pressure Low - Warning

Yellow

483

Injector Metering Rail #2 Pressure Sensor Circuit - shorted high

Yellow

484

Injector Metering Rail #2 Pressure Sensor Circuit - shorted low

Yellow

485

Injector Metering Rail #2 Pressure High - Warning

Yellow

486

Injector Metering Rail #2 Pressure Low - Warning

Yellow

489

Transmission Output Shaft (Tailshaft) Speed Low - Warning

Yellow

496

Engine Speed/Position Sensor #2 (Camshaft) Supply Voltage

Yellow

527

Auxiliary Input/Output #2 Circuit - shorted high

Yellow

528

OEM Alternate torque validation switch - data incorrect

Yellow

529

Auxiliary Input/Output #3 Circuit - shorted high

Yellow

546

Fuel Delivery Pressure Sensor Circuit - shorted high

Yellow

547

Fuel Delivery Pressure Sensor Circuitshorted low

Yellow

551

Accelerator Pedal Idle Validation Circuit - shorted low

Yellow

553

Injector Metering Rail #1 Pressure High - warning level

Yellow

581

Fuel Supply Pump Inlet Pressure Sensor Circuit - shorted high

Yellow

582

Fuel Supply Pump Inlet Pressure Sensor Circuit - shorted low

Yellow

3-22

Controls and Operating

583

Fuel Supply Pump Inlet Pressure Low - warning level

Yellow

595

Turbocharger #1 Speed High - warning level

Yellow

596

Electrical Charging System Voltage High - warning level

Yellow

597

Electrical Charging System Voltage Low - Warning Level

Yellow

598

Electrical Charging System Voltage Low - Critical Level

Red

611

Engine Hot Shutdown

None

753

Engine Speed/Position #2 - Cam sync error

None

755

Injector Metering Rail #1 Pressure Malfunction

Yellow

758

Injector Metering Rail #2 Pressure Malfunction

Yellow

951

Cylinder Power Imbalance between cylinders

None

3-23

Controls and Operating

3.12 Steering

The steering wheel position can be adjusted

as required for the most convenient operating

position. To adjust, pull out adjustment lock

and tilt steering wheel up or down as desired;

release lever to lock adjustment.

The steering system provides full-time

Adjusting rotary

hydraulic power with a continuous-running

knob of high-low

knob of front-rear

pump and a pressurized accumulator. The

accumulator helps maintain a constant flow

of hydraulic power to operate the steering

Fig 3.14

cylinders (Fig 3-14, 3-15).

To steer the front wheels, rotate the steering

wheel in the desired direction to the required

radius of turn. The front wheels will turn only

as the steering wheel is turned and at a rate of

turning directly proportional to steering wheel

Trun left

Trun right

speed. The front wheels will stop and hold

position when the steering wheel is stopped.

To return the front wheels to the straight ahead

position or to the opposite direction, turn the

steering wheel in the opposite direction.

WARNING

In the event of loss of steering pump

output pressure, a fully-pressurize

Fig 3.15

accumulator provides a maximum

of two lock to lock turns of the front

wheels. A red warning indicator on

the instrument panel illuminates and a

buzzer sounds when steering pressure

falls below 11.5MPa (1660 pound/in2).

If this warning indicator illuminates,

indicating a loss of steering power, the

machine must be stopped immediately

and no further operation attempted

until the fault is corrected. The

accumulator slowly bleeds down after

engine shut-off to prevent accidental

steering. However, accumulator

pressure should be dissipate after

engine shut-off by turning the steering

3-24

Controls and Operating

wheel in both directions to avoid

accidental steering during bleed down.

Improper steering control unit repair or

hose connections can cause sudden

and forceful steering wheel movement

when engine is started.Keep hands off

steering wheel when starting engine.

3.13 Transmission

3.13.1 CEC2 Shift System

The transmission of the truck adopts the

CEC2 (2nd generation commercial electronic

control) shift system. CEC2 is a well designed

computer-controlled automatic shift system,

which integrates functions including automatic

gear-shift, misoperation screening, diagnostic

capabilities, etc., so as to effectively reduce

the fatigue of the driver and make the driver

work safely, easily and simply by focusing on

the road conditions.

Automatic Gear-shift: CEC2 can automatically

select appropriate gear position according

to throttle position, engine speed and truck

speed. Do not move the gear shift handle

frequently during driving. The truck speed can

be controlled through controlling oil supplied

to throttle position by foot pedal. CEC2 can

select economy mode and power mode.

So as to meet the different requirements of

customers.

Reverse Inhibit: Prevents gear selection if

engine is operating at more than 20% throttle.

Hoist interlock pressure switch - The ECU will

shift the transmission from Reverse to Neutral

if the body control lever is moved to the 'Raise'

position.When the body is held in the 'Raise'

position,will prevent to engage reverse gear.

Body Up Interlock: When the body is raised, the

CEC2 system will only allow the transmission

to operate in first gear. This feature is only

operational in the normal automatic driving

mode, either power or economy. It is not

3-25

Controls and Operating

activated during the manual mode.

Parking Brake Interlock: If the parking brake

is applied while the transmission is in neutral,

the CEC2 system will prevent a shift out of

neutral to protect the brake components. If the

parking brake is applied while the transmission

is in gear, the parking brake interlock will not

function and normal shifts will occur.

Lock-in-gear: The lock-in-gear feature is

designed to protect the transmission from

damage should wheel spinning or lockup occur

due to poor traction or panic braking. The ECU

will delay making a shift for several seconds

and then, if the condition fails to correct itself,

locks in gear and prevents any further shifting.

The transmission fault indicator will come on.

If this occurs, the ECU must be reset before

normal operation may be resumed.

Reset procedure: if the transmission has

locked in gear because of wheel spinning

or emergency brake, stop the truck, select

neutral, apply the parking brake, and shut

down the engine. Turn off battery main switch,

wait ten seconds, then reconnect the main

switch and restart the engine. Select reverse,

then neutral. The "check transmission" and

"inhibit gear shift" warning indicator should go

off.

Cold Weather Starts: During cold weather

starts, if the transmission temperature is

below -24℃ (-10°F), The "check transmission"

and "forbid gear shifting" warning indicator

will come on, and the ECU will keep the

transmission at neutral gear. Between -24° C

(-10°F) and -7℃ (19°F) ,the warning indicator

will go out and the ECU will only permit

operation in First or Reverse gears. Above

-7℃ (19°F), normal operation will be permitted.

WARNING

Before any welding is done on a

machine equipped with a CEC shift

3-26

Controls and Operating

system, disconnect battery equalizer

ground cables, battery cables from

terminal posts (ground cable first),

battery equalizer positive cables

and electrical connections at the

ECU to avoid damage to electrical

components. Turn off ignition key

switch to isolate the batteries before

disconnecting any components.

The standard procedure for raising the

body must still be adhered to.

！

Fig 3.16

1.Electronic control unit (ECU)

6. Diagnosis switch

2.Control box

7.Stalling detection switch

3.Gear shift selector

8.Idling adjustment switch

4.Mode selection switch

9. Transmission overspeed indicator

5.Reversing switch

10.Transmission fault indicator

3-27

Controls and Operating

3.13.2 Introduction and operation

(1) Electronic Control Unit (ECU) - The ECU

contains an electronic microcomputer.It

receives information in the form of electronic

signals from switches and sensors, processes

the information, and sends electronic signals

to the appropriate solenoids which control the

transmission.

(2) Control box -- contains VIM and ECU.

(3) Gear shift selector -- the shift selector is

a remote mounted lever type. The gear shift

selector is connected to the ECU by a wiring

harness. The shift lever has 6 forward ranges

and 1 reverse ranges, as well as a neutral

position.

The shift selector has a single digit LED

display, which during normal operation

MODE

will display the gear selected. Diagnostic

information can be displayed on the single

digit LED display by pressing the diagnostic

display button. There is a hold override button

that must be pressed when shifting between R,

N and D. The hold override button is released

when desired selector position is reached. The

selector lever can move freely between D and

Fig 3.17

the number ranges without pressing the hold

override button. (Refer to fig.3-17)

WARNING

Do not allow the vehicle to coast in

Neutral. This practice can result in

severe transmission damage.

The transmission upshifts and downshifts

automatically between first range and the

highest range selected on the range selector

in direct response to throttle position, engine

speed and transmission output speed.

When Reverse is selected the reverse alarm

sounds and the reverse indicator illuminates

at the rear of the vehicle. This feature warns

personnel to the immediate rear of the vehicle

3-28

Controls and Operating

that the operator has shifted to reverse.

When drive 'D' is selected, the transmission

automatically upshifts and downshifts through

all six forward ranges as required by loads and

travel speeds. Selecting a lower range (4th,

3rd etc.) limits the highest range to which the

transmission will automatically upshift.

If a lower range is selected while moving

forward, the transmission automatically

downshifts sequential to the selected lower

range at maximum controlled engine speeds.

Downshifts will not occur until vehicle is

slowed by use of the service brakes and/or

retarder.

When shifting from neutral to start from a

standstill, or to reverse direction, decelerate

the engine to idle speed. To move forward,

select drive 'D' and accelerate the engine to

the vehicle load and speed requirements. The

transmission will automatically upshift from 1st

through 6th ranges as travel speed increases.

With the throttle fully depressed, and the

mode selection switch in the Power position,

the transmission upshifts to the next higher

range when the engine attains 2175rpm, since

maximum power train output is needed under

this condition. At lower throttle settings where

minimum power train performance is required,

the transmission will upshift to the next higher

range at less than maximum rated engine

speed.

Upgrades or soft spots might slow travel

speed, even at full throttle, requiring

transmission downshifts to maintain maximum

powertrain performance. When this occurs,

the transmission downshifts automatically.

Shift the transmission to the next lowest range

if transmission 'Hunting' or 'Shift Cycling'

occurs.

When temporarily stopped, such as for

yielding the right-of-way to a loaded vehicle,

the transmission can be left in the selected

range and the vehicle held stationary with the

service brakes.

3-29

Controls and Operating

However, when stopped for a more extended

period with the engine left running, shift the

transmission to neutral to avoid unnecessary

heat buildup and apply the parking brake.

WARNING

Always select Neutral and apply the

parking brake before leaving the

operator’s seat.

(4) Mode selection switch - Gives the option

to select between transmission 'POWER' and

'ECONOMY' shift schedules.

Note: The transmission must be in neutral

before the switch will function; otherwise,this

practice can result in transmission damage.

The transmission torque converter is equipped

with a lockup clutch which, when engaged

by the ECU, locks the converter pump and

turbine together as a single unit and allows

power to be transmitted mechanically from

the engine directly to the transmission gearing

on a 1 to 1 ratio. When the lockup clutch is

disengaged, the torque converter acts as a

fluid coupling, multiplying torque when engine

speed is significantly higher than transmission

output shaft speed.

When the mode selection switch is in the

'POWER' position, the ECU controls operation

of the lockup clutch according to signals

received by the throttle position sensor (giving

engine speed as a percent of throttle), the

transmission output shaft speed sensor,

and range selector. The ECU may delay

application of the lockup clutch and allow

torque multiplication by the torque converter to

take place until a balance is achieved between

engine speed and transmission output shaft

speed before activating the lockup clutch.

Power versus Economy Mode

The POWER mode is designed for

applications involving heavy loads and hilly

3-30

Controls and Operating

duty cycles where performance rather than

fuel economy is of prime importance.

The ECONOMY mode is designed for

applications involving lighter loads and level

duty cycles or where fuel economy is more

important than performance.

In the ECONOMY mode, the ECU controls

operation of the lockup clutch with a timed,

preprogrammed schedule where in second

through sixth gears the lockup clutch is

disengaged only long enough to allow the

torque converter’s fluid coupling to absorb

shift shock. Otherwise, the lockup clutch is

engaged and no torque multiplication takes

place in Second through Sixth gears.

(5)Reversing switch-This switch is provided for

reversing function,Operator can use.

(6)Diagnosis switch -- This switch is provided

for the professional service technician of the

engine, and is used to retrieve fault codes of

the engine. By default, this switch is opened

by pressing its bottom (lower) part.

(7) Stall check -- This switch is provided for

the professional service technician of the

transmission, and is used to test the matching

between the transmission and the engine

output torque. By default, this switch is opened

by pressing its top (upper) part.

(8)Idling adjustment switch-This switch is

provided for idling adjustment function,

operator can use to increase or decrease

idling.

(9)Transmission over speed indicator (Red)

-- Illuminates when the transmission ECU

senses engine speed above 2350 r/min.

(10) Transmission fault indicator(Red) --

Illuminates to alert of a minor fault in the

transmission shift system or abnormal

transmission temperature. The warning

indicator will come 'On' when the ignition key

switch is turned to position '1' to provide a bulb

and system check and should go 'Off' a few

seconds after the engine is started and the

transmission oil pressure rises.

3-31

Controls and Operating

The transmission fault indicator will come

'On' during operation if the ECU has detected

a minor fault in an electrical component or

abnormal transmission oil temperature. If

transmission oil temperature is too high, stop

the machine, select Neutral (N), and increase

engine speed to allow a greater flow of oil

to the oil cooler until oil temperature drops

to normal operating range. In most cases, a

minor fault triggering the transmission fault

indicator will not prevent normal operation

from continuing but, depending on the nature

of the problem, the ECU could take action to

protect the transmission from damage, such

as preventing operation in high gear ranges. If

the ' check trans ' warning indicator comes on,

have the problem diagnosed and corrected at

the earliest opportunity.

WARNING

Do not operate engine for more

than 30 seconds at full throttle with

transmission in gear and output stalled

as this will result in severe overheat

damage to the transmission.

3.13.3 General Transmission Operation

Watch for wide deviations from normal

readings on the transmission oil

temperature gauge during truck operation. If

the transmission oil

temperature gauge, on vehicles which do not

MODE

have a transmission retarder fitted, shows

oil temperature consistently rising above the

green zone (65°C - 135°C; 149°F - 275°F)

under normal operating conditions; check for

external causes. If none are evident shift to

Neutral (N) and operate the engine at 1200 -

1500 r/min. If the transmission oil temperature

does not decrease into the green zone within

Fig 3.18

2 or 3 minutes, the cause of the overheating

3-32

Controls and Operating

should be corrected before the machine is

operated further. Watch the oil temperature

gauge when operating on upgrades, also. If

the oil temperature goes into the red zone

(135°C -165°C; 275°F- 392°F), select the

range which will limit upshifts to the highest

range in which the transmission will operate

within the normal temperature range. If

upshifting must be consistently limited to

ranges lower than normal for the loads and the

grades encountered to prevent overheating

the transmission oil, the causes should be

determined and corrected.

3.13.4 Retrieving Diagnostic Codes

Diagnostic fault codes can be retrieved from

the CEC2 system using the gear shift selector

or by plugging in the diagnostic data reader

(DDR). To obtain diagnostic codes using the

gear shift selector:

※Check transmission warning indicator on

dash will illuminate when ECU detects a fault.

※Stop truck and select 'Neutral'.

※Press diagnostic button (1) on gear shift

selector. Display (2) on gear shift selector will

flash one digit at a time.

※Display starts with code position D1, D2,

etc, followed by the two digit main code, then

the two digit subcode.

※To advance to the next code, press the

mode button (3). Up to five codes can be

stored.

※Active codes are indicated by illumination of

the mode light (4).

3.13.5 Clearing Diagnostic Codes

To clear active codes, press and hold mode

button (4) for 3 to 5 seconds.

To clear inactive codes, press and hold mode

button (4) for 8 to 10 seconds.

To exit diagnostic mode, press diagnostic

button (6). Refer to table for diagnostic code

description.

3-33

Controls and Operating

3.13.6 Diagnostic Codes

Check

Main

Sub

Inhibited Operation

Description

Trans

code

Code

Description

Light

ECU input voltage, low

Yes

DNS

ECU input voltage, high

Yes

DNS

Throttle position sensor, failed low

Yes

Use throttle default values

Throttle position sensor, failed high

Yes

Use throttle default values

Engine speed sensor reasonableness

Yes

Use default engine speed

test

Turbine speed sensor reasonableness

Yes

DNS, lock in current range

test

Output speed sensor reasonableness

Yes

DNS, lock in current range

test

Hold in last valid direction. May

Primary shift selector or RSI link fault

Yes

cause “cateye” display

Primary shift selector mode function fault

Mode change not permitted

Secondary shift selector or RSI link

Hold in last valid direction. May

Yes

fault

cause “cateye” display

Secondary shift selector mode

Mode change not permitted

function fault

Shift Selector display line fault

Yes

None. May cause “cateye” display

Sump fluid temperature, cold

Yes

DNS, lock-to-range

No upshifts above a calibration

Sump fluid temperature, hot

Yes

range

Output speed sensor, detected at 0 output

Yes

DNS, lock in current range (1st)

rpm, 1st

Output speed sensor, detected at 0 output

Yes

DNS, lock in current range (2nd)

rpm, 2nd

Output speed sensor, detected at 0 output

Yes

DNS, lock in current range (3rd)

rpm, 3rd

Output speed sensor, detected at 0 output

Yes

DNS, lock in current range (4th)

rpm, 4th

Output speed sensor, detected at 0 output

Yes

DNS, lock in current range (5th)

rpm, 5th

3-35

Controls and Operating

Output speed sensor, detected at 0 output

Yes

DNS, lock in current range (6th)

rpm, 6th

Output speed sensor, detected at 0 output

Yes

DNS, lock in current range (7th)

rpm, 7th

Output speed sensor, detected at 0 output

Yes

DNS, lock in current range (8th)

rpm, 8th

Throttle source not detected

Use throttle default values

Sump fluid temperature sensor failed low

Yes

Use default value of 93°C (200°F)

Sump fluid temperature sensor failed high

Yes

Use default value of 93°C (200°F)

Factory calibration compatibility number

Yes

DNS, SOL OFF

wrong

Factory calibration fault

Yes

DNS, SOL OFF

Use previous location, or factory

Power off fault

Yes

calibration

Use previous location, or clear

Diagnostic queue fault

Yes

diagnostic queue

Real time fault

Yes

DNS, SOL OFF

Customer modifiable constants fault

Yes

DNS, SOL OFF

Power interruption (code set after power

None (hydraulic default during

restored)

interruption)

Real time write interruption

Yes

DNS, SOL OFF

Hardware/software not compatible

Yes

DNS, SOL OFF

General solenoid failure - F

Yes

DNS

General solenoid failure - K

Yes

DNS, Inhibit lockup

FGeneral solenoid failure - B

Yes

DNS, Inhibit Reverse

General solenoid failure - G

Yes

DNS

General solenoid failure - H/J

Yes

Turn off trim boost J, DNS H

General solenoid failure - A

Yes

No action taken

General solenoid failure - D

Yes

DNS

General solenoid failure - I

Yes

No action taken

General solenoid failure - C

Yes

DNS

Hi side overcurrent, H/J solenoid

Yes

Turn off H/J solenoid, DNS

Hi side overcurrent, C, D, E solenoid circuit

Yes

Turn off C, D, E solenoids

DNS. Turn off A, B, F, G, I, K

Hi side overcurrent, A, B, F, G, I, K

Yes

solenoids

Range verification ratio test, 1st

Yes

DNS

Range verification ratio test, 2nd

Yes

DNS

Range verification ratio test, 3rd

Yes

DNS

Range verification ratio test, 4th

Yes

DNS

3-36

Controls and Operating

Range verification ratio test, 5th

Yes

DNS

Range verification ratio test, 6th

DNS

Range verification ratio test, 7th or R1

Yes

DNS

Range verification ratio test, 8th or R2

Yes

DNS

Engine rating too high

Yes

DNS, Lock-in-neutral

Serial communications interface fault

Use default throttle values

ECU, inoperative A, B, F, G, I, K solenoid

Yes

DNS, SOL OFF

ECU, inoperative H/J solenoid

Yes

DNS, SOL OFF

ECU, inoperative C, D, E solenoid

Yes

DNS, SOL OFF

Reset ECU, shutdown ECU on 2nd

ECU, Computer Operating Properly (COP)

occurrence (power loss; hydraulic

Yes

fault

defaults). May cause “cateye”

display or all segments blank display

ECU, EEPROM, fault

Yes

DNS, SOL OFF

ECU, EEPROM, fault

Yes

Reset ECU

Communication chip addressing error

Yes

Use defaults for J1939 data

GPO 1-8 and reverse warning

SPI output failure

inoperable

SPI input failure

Yes

DNS, lock-in-range

3-37

Controls and Operating

3.14 Body Control

Operate the hoist lever(see Fig 3-19) the left

of operator’s seat to raise or lower body. The

four operating positions of the lever from front

to rear are as follows :

Raise -this position directs oil to extend the

body hoists and raise the body.

When released, the lever will be spring-

returned to the 'HOLD' position.

HOLD - Lever to this position while the body

is being raised and lowered to stop movement

and hold the body to the expected height.

The lever will be locked and kept at “ HOLD”

position during releasing.

FLOAT - While the body drops via gravity, the

lever will be moved to and kept at this position

until the body will be operated again. The lever

Fig 3.19

shall be kept at “float” position during the truck

is in motion .

Lower -This position provides hydraulic force

to power-down the body. The body raised to

HOIST

the highest position needs to be dropped with

hydraulic power, i.e., the lever shall be pushed

HOLD

to this position; when the body is dropped to

a certain height, it will drop via gravity. Then,

release lever and the lever will be moved to

FLOAT

the float position via spring which inside of the

valve (see Fig 3-20).

1. Hoist

LOWER

Preparation:

(1) Run the engine in idling speed;

(2) Make sure the rear wheels are on the firm

Fig 3.20

level ground;

(3)Shift the transmission to Neutral and hold

the machine stationary by applying the brakes

with the Parking-Emergency brake control.

Hoisting:

(1) Pull the lever backward to the “Raise”

position, hold the lever and accelerate engine

to raise body;

(2) Moves the raise lever to "hold" position

when the body is required to stay at a certain

height;

3-38

Controls and Operating

(3) Decelerate the engine when the last stages

of the body hoists begin to extend to slow the

raising speed as the hoists approach their

maximum extensions;

(4) Pull the lever to “HOLD” position when the

body is raised to the desired height.

WARNING

Drain the pressure form the pilot valve

before while repairing the raise system and

its control system .

Method: Turn off the engine, operate the

RAISE lever for about 15 times in two

directions, to drain the pressure oil form

the pilot valve.

2. Lower

Lowering the body:

(1) Move the handle to “float” position; then

the body will lower to the frame via gravity;

(2) If the body is required to stay at a certain

height, the handle shall be moved to “HOLD”

position;

(3) If the body does not begin to lower

by its own weight, such as after dumping

downgrade, move the control lever all the way

forward to the 'LOWER' position and power

the body downward until it begins lowering

by gravity. Then move the lever to 'FLOAT'

position in the specially situation.

Caution : Make sure that the body is

completely lowered and the control lever is

in 'FLOAT' before releasing the brakes and

moving the machine.

3-39

Controls and Operating

3.15 The common fault code of

vehicle monitor system

There is an indicator of vehicle monitor system

state in display. The indicator is green when

the vehicle is normal, and turns red when any

one or more of the following fault accruing.

Fault code

Description

Operation Instruction

Disc brake cooling oil returning

2685

Must check

Temperature high

2690

Transmission oil filter block

Must check

2691

Transmission oil temperature high

Must check

2693

Brake accumulator pressure F low

Must check

2694

Brake accumulator pressure B low

Must check

2696

Steering accumulator pressure low

Must check

2697

Steering oil returning temperature high

Need check

2698

Steering oil returning filter block

Need check

2700

Water in fuel indicator

Need check

2701

Parking pressure low

Must check

2705

Over speed

Reduce speed

2706

Hoist oil returning filter block

Must check

3-40

SANY SRT45 Off-Highway Truck. Safety,Operation and Maintenance Manual (2014) - page 3