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TM 10-3930-638-24&P
4-3. FUEL SYSTEM MAINTENANCE (cont)
b. Fuel Injection Pump (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
REASSEMBLY (cont)
27
a. Two pumping
Install in rotor
Chamfer inward
(cont)
plungers (122)
bores
b. Rotor (123)
Flush thoroughly
Don’t handle rotor shank; keep your fingers
in clean diesel
over plungers to stop them from falling
fuel
out
c. Hydraulic head
Flush thoroughly
(81)
in clean diesel
fuel
d. Rotor (123)
Install using
In hydraulic head, while both are immersed
slight rotary
in clean diesel fuel
motion
e. Hydraulic head
Install in holding
(81) and rotor
fixture P/N 19965
(123)
f. Leaf spring (121)
Position
g. Adjusting screw
Install
Use tool P/N 13336
(1 20)
h. Two cam roller
Install
In rotor (1 23), then check for freedom of
shoes (119)
movement
and cam
rollers (118)
i. Cam rollers (118)
Check and adjust roller-to-roller dimension:
a. Install fixture P/N 19969 in vise
b. Assemble 1/4-18 NPT fitting to fixture air inlet
c. Adapt fitting to a 30-100 PSI source of clean, dry air
CAUTION
Handle hydraulic head carefully in following step and hold cam
rollers (118) and shoes (119) in their slots to prevent rotor, cam
rollers, and shoes from falling.
4-116
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