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DDFP SERIES ENGINES FOR FIRE PUMP APPLICATIONS MP-4. Manual - part 3

DDFP

SECTION 1

Page 6

General Specifications - DDFP Models

2 Cycle

4.25

108

127

17:1

– –

426

6.99

2 Cycle

4.25

108

127

– –

18.7:1

213

3.49

2 Cycle

4.25

108

127

17:1

18.7:1

284

4.66

General Specifications - DDFP Models

Type

Number of Cylinders
Bore (inches)
Bore (mm)
Stroke (inches)
Stroke (mm)
Compression Ratio
Total Displacement (cubic inches)
Total Displacement (liters)
Number of Main Bearings

For Specific Operational Data For Each Engine Model, Refer To Technical Data Section 5.

Type

Number of Cylinders
Bore (inches)
Bore (mm)
Stroke (inches)
Stroke (mm)
Compression Ration (T Eng)
Compression Ration (N Eng)
Total Displacement (cub. in.)
Total Displacement (liters)
Number of Main Bearings

2 Cycle

3.875

4.5

114

18.7:1
21.0:1

159

2.61

08FA

2 Cycle

4.84

123

127

17:1

736

12.07

L8FA

08FH

2 Cycle

4.84

123

127

15:1

736

12.07

12FH

2 Cycle

4.84

123

127

15:1

1104

18.1

06FA

2 Cycle

4.84

123

127

17:1

552

9.05

06FH

2 Cycle

4.84

123

127

15:1

552

9.1

12FT

2 Cycle

4.84

123

127

17:1

1104

18.1

03DN

03DT

L3DT
T3DT

04AN

04AT

L6VT
T6VT

03AN

SECTION 1

DDFP

Page 7

Fig. 8 VEE Engine Cylinder Designation and Firing Order

Fig. 7 - Cylinder Designation and Firing Order

3 - IN-LINE

4 - IN-LINE

DDFP

SECTION 2

Page 8

Preparing New Engine For Start-Up

Before starting a new or overhauled engine for the first time,

carefully read and follow the check list below. Attempting to

run the engine before studying these instructions may result

in serious damage to the engine.

Make all electrical (DC) connections between engine

(DC) junction box and engine controller.

Make all raw water connections to heat exchanger tank.

Discharge line should be one size larger than supply line and

rise a minimum of 3 inches abo ve heat e xchange outlet to

assure complete co verage of the heat e xchange core. Dis-

charge water is to be piped to an open w aste cone.

NOTE:

Do not allo w raw water plumbing to stress on

engine heat exchanger.

Install all of the drain cocks or plugs in the cooling sys-

tem (drain cocks are removed for shipping engines dry).

Fill engine cooling system with PRE-MIXED 50 per -

cent water and 50 percent permanent type antifreeze solu-

tion. Fill to top heat exchanger tank.

NOTE:

Refer to Section 3.4 for Cooling System

Fill Procedure.

Connect fuel supply line and fuel return line to supply

tank. Bleed fuel system of all air.

NOTE:

Do not use galvanized material for any compo-

nent part of a diesel fuel system. The fuel will

chemically react with the zinc coating.

Fill fuel tank with No. 2 diesel fuel.

NOTE:

No. 2 diesel fuel is the only recommended fuel,

engine po wer could be af fected by using an y

other type.

Fill engine crankcase with SAE 40 weight oil per oil

recommendations of Section 3. Oil filler locations v ary by

engine model. Most will be found on the engine valve cover.

Pre-lubricate engine to a minimum 25 psi (172 KPA) to

insure an immediate flow of oil to all bearings at the initial

engine start-up. Contact the authorized DDC

Distributor/Dealer if you require assistance with this item.

Unbox and inspect air cleaner element for damage or de-

terioration. Install air cleaner element on engine.

10.

Install batteries, battery cables and service batteries as

required by manufacturer. See battery recommendation under

Section 3.

11.

Install exhaust system. A vertical exhaust outlet is fur-

nished for customer/contractor installation. A fle xible e x-

haust connector must be installed at outlet.

NOTE:

Do not exceed exhaust back pressure limits. See

Section 5 for details for each engine model.

NOTE:

Do not allow exhaust system plumbing to stress

on engine.

If any problems or questions develop in performing the above

procedures, advise the authorized DDC Distributor/Dealer of

details when making arrangements for the installation in-

spection.

NOTE:

Only one initial start-up inspection is provided at

no charge for an installation re view. Be sure to

cover items 1-11 thoroughly before calling the

authorized DDC Distributor/Dealer.

Normal Running

Fire pump engines are run periodically to assure proper oper-

ation. Units may be run automatically as programmed within

the AEC or the y may be run manually for systems e valu-

ation.

NOTE:

For specific operating instructions, see Section 3

- Electrical System.

Normal Care And Maintenance Should Be Made On
The Following Systems:

Fuel System

Periodically check fuel tank to assure it is full. Keep the fuel

tank f illed to reduce condensation to a minimum and to

assure full running time during emergency operation. Engine

fuel filter should be changed annually or when fouled with

contamination. If contaminated, locate the source and cor-

rect. (See Section 3 page 13 for proper procedure). If the

engine runs out of fuel or if the eng ine is out of service for a

considerable length of time, it may be necessary to reprime

the fuel system. Refer to Section 3 for proper procedure.

ENGINE START UP AND OPERATING INSTRUCTIONS

SECTION 2

DDFP

Page 9

Right Side View (I-53)

Front View (I-53)

engine coolant between 120 -140 de grees F (49-60° C).

When running, engine coolant temperature should re gister

between 180-200 de grees F (82-93° C). See Section 3 for

detailed information.

Crankcase

The oil le vel should be maintained between the Full mark

and Low mark. Check the oil le vel weekly prior to normal

exercise. The oil dipstick is located on the right side of the

engine. Do not check oil level when the engine is running. If

the engine crankcase was refilled, stop the engine after nor-

mal operating temperature has been reached, allow the oil to

drain back into the crankcase (approximately 10 minutes)

and check the oil le vel. Add oil, if necessary, to bring it to

the proper level on the dipstick.

NOTE:

DO NOT OVER-FILL CRANKCASE.

Use only the recommended lubricating oil specif ied under

Section 3 - Lubricating Oil.

Running Inspection

While the engine is running at operating temperature, check

for coolant, fuel or lubricating oil leaks. Tighten the line

Drive Belts

Adjust the alternator drive belts as recommended under the

Preventive Maintenance Section 2.

Storage Battery

Check the batteries. The top should be clean and dry, the ter-

minals tight and protected, and the electrolyte must be at the

proper level. They should be tested weekly to determine the

condition of cells, and the amount of charge.

NOTE:

Once each week, check the batteries with a hy-

drometer; the corrected reading should be 1.265

or higher. Hydrometer readings should be cor-

rected for the temperature of the electrolyte.

Should a problem be detected, locate source and

correct.

Oil Pressure

Normal engine operating oil pressure is 40-70 psi (276-433

kPa). If operating pressure falls below 30 psi (206 kPa), stop

engine and investigate cause.

Coolant Temperature

When unit is not running,

Jacket w ater heaters maintain

Standard Model Views

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