DISASSEMBLY - TM-10-3930-638-24-P0870

TM 10-3930-638-24&P

4-3. FUEL SYSTEM MAINTENANCE (cont)

b. Fuel Injection Pump (cont).

REMARKS

ACTION

ITEM

LOCATION

STEP

DISASSEMBLY

NOTE

Before starting disassembly of fuel injection pump, cover inlet and

outlet ports, wash pump with clean diesel fuel to remove all

external grease and dirt, and dry with filtered, compressed air.

Work space, tools, and hands must be clean during following task.

Use a clean pan to place parts into during disassembly; a pan of

clean diesel fuel or calibrating oil must be available in which parts

may be flushed. These should be deep pans with rounded corners

to lessen chances of dirt pockets.

Pull and remove

Front of pump

a. Thrust plunger (1)

and spring (2)

Remove

b. Nut (3) and

lock washer (4)

Remove

c. Drive shaft (5)

Remove and discard

d. Two seals (6)

NOTE

Don't remove roll pin (7) unless damaged.

e. Roll pin (7)

Remove only

Use 5/64 inch easy out extractor or 3/32

if sheared or

inch carbide tipped drill

damaged

f. Pilot tube seal (8)

Remove

Use screwdriver and pry out

Mount

In holding fixture P/N 20029

Fuel injector pump

Cut, remove

Housing

a. Safety wire (9)

and discard

Remove

b. Three screws (10),

lock washers (11)

and washers (12)

c. Governor control

Remove

cover (22) and

solenoid frame

and arm assembly (24)

d. Gasket (23)

Remove and

discard

4-92