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CG958H Wheel Loader. Manual - part 22

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Operation

I Operation and Control of Loader

1.1 Start Key Switch

Turn on the power switch firstly, and then turn the key switch to start the engine.

1． The key switch has four positions:

Notes:

z The running time for starting the engine each time shall not exceed 5 seconds. For the second

starting, the interval time of two times shall be over 2 minutes.

z After starting and preheating of the engine, if the alarm lamp lights (including low brake

pressure alarm lamp, or engine failure, and fuel-water alarm lamp), the engine shall be

stopped immediately for examination. After the alarm lamp lights off, the engine may be

operated, or not, your driving safety would be endangered.

After starting and preheating of the engine, if the low brake pressure alarm lamp lights

continuously, the engine shall be stopped immediately for examination. After the alarm lamp

lameout: The key switch may be inserted or pulled out only at this

position. As the switch is situated at this position, the power source of
most circuits of the cab will be shut off.

Pre-heating: Turn the key switch anticlockwise to this

position to put through preheating device.

Powerup: Turn the key switch clockwise to this position for the power

connection of electronic monitor and instruments in the cab etc. When the

switch key is rotated to this position, the engine will automatically examine

whether it is preheated. If any, the engine’s electric control system will open

Starting: Turn the key switch clockwise to this position to start the engine.
After starting, release the key switch, the key switch will automatically return
to the power-up position.

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lights off, the engine may be operated, or not, your driving safety would be endangered. In

case the brake pressure alarm lamp lights during the period of drive, it shall be stopped

immediately for examination.

1.2 Transmission Control, Steering Gear and Horn Switch

Transmission control

Option of

driving directions-- Pull forwards the operating rod (1) for advance, and backwards for retrogression

Speed option--Turn the speed operating rod (1). As the arrowhead aims at 1.2.3 and 4, the

corresponding driving speed may be attained.

z This loader has four forward gears and three backward gears. As the speed operating rod is at the

position of 4 gear, the loader is under the state of retrogression, and only three-gear speed may be

attained.

(2) KD key (1) is designed at the topside of the speed operating rod with the purpose to

improve the operation efficiency. Its application technology is given below:

1． As the loader advances to and near the stockpile at the speed of II gear, press the KD key (1)

for maximum tractive force.

2． As the speed operating rod is turned to the reverse direction upon the completion of loading

work, the loader will back to II gear automatically (reverse and advance are II gear) for the

relatively high speed to finish the loading work;

3． Repeat steps 1~2 to use the KD key for a higher operation efficiency.

Turning operation

The driving direction of this loader is controlled by steering wheel (2). The turning of the

steering wheel means the turning of the loader.

Turn left--Turn the steering wheel (2) anticlockwise, the loader turns left. Faster turning of the

steering wheel anticlockwise, quicker turning left.

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Turn right-- Turn the steering wheel anticlockwise, the loader turns right. Faster turning of the

steering wheel anticlockwise, quicker turning right.

Horn switch (3)--Press the horn switch (3), the horn will alarm.

1.3 Control of Parking Brake

The parking brake is an integral with the

emergency brake system. Both are controlled

hydraulically. The parking button (1) is

designed on the instrument desk.

Caution

The medium of this system is hydraulic

oil same as the other hydraulic systems, so

other brake liquid is not required.

This system carries out the international standard ISO 3450-1999.

Caution

Only the parking brake oil pressure is over 10.3MPa, the parking brake may be loosened.

Therefore, when the loader is running and the oil pressure is less than 10.3Mpa, the parking brake

will automatically damp. Therefore, the driver shall watch out the parking brake alarm lamp.

Running the loader under the state that the parking brake is closed is not allowed.

Do not use the parking brake while driving under exceptional circumstances, or not, the

parking brake will be damaged seriously.

Close parking brake--Press the parking button (1) to close the parking brake.

Loosen parking brake--turn clockwise the parking button (1), the handle will bounce

automatically to loosen the parking brake.

Warning

After starting and preheating of the engine, if the low brake pressure alarm lamp lights

continuously, the engine shall be stopped immediately for examination. After the alarm lamp

lights off, the engine may be operated, or not, your driving safety would be endangered. In case

the brake pressure alarm lamp lights during the period of drive, it shall be stopped immediately

for examination.

Caution

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Welding and mechanical processing on the shell of the accumulator are not allowed. Upon the

completion of the connection, the hydraulic pipes shall completely discharge the air through screw

plug on the accumulator. The repairing and pressure connection relating to the accumulator etc may

be conducted after the oil pressure is released.

1.4 Control Pedal

Accelerator pedal (1)-- The accelerator is an

electronic one. The journey under the pedal decides the oil

supply amount of the diesel engine.

Service braking pedal (2)-- In service, step on the

pedal (2) to reduce speed or stop the loader. And after

certain journey under the pedal, the power output of the transmission case may be shut off.

1.5 Flameout Switch

This loader adopts electric control. It is installed with the electric controlled flameout device,

i.e. key switch on switch board. Turn off the key switch to flame out the engine.

1.6 Control of Working Device

Precautions:

The hydraulic oil deployed by the hydraulic system must be cleanly.

After the moving arm or rotary bucket is controlled to the wanted position, the pilot-operated

control handle shall be back to the central position firstly.

Do not lift the bucket to the highest position to deliver materials. In transportation, the interface

point under the moving arm shall be kept for 500mm away from the ground so as to ensure the

stable service of the loader.

Prior to each service, the liquid level of the hydraulic oil box shall be examined to ensure the

proper oil amount.

The pilot-operated control handle shall be examined whether it stays at the central position.

Examine whether the function of the lock-up solenoid valve of the handle (pilot-operated oil

supply valve band) is normal.

Operation:

Usually, the operation way of the loader is joint operation with camion. If the camion stops, the

loader loads skidly. The camion and loader works jointly.

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