TO
35C2-3-442-2
P-8-627-34
TM-07464A-35
TM 5-6115-457-34
a. If bearings (8, 15 and 21) were re-
INSTALLATION.
8-60.
moved, install new bearings. Bearings
are press fitted.
a. Refer to figure 8-14 and install
tachometer drive group, secure with bolts
b. Pack housing assembly (22) cavity
(1), lockwashers (2) and clamps (3 and 4).
with 7 cc's of approved lubricant.
Torque bolts (1) from 6 to 10 foot pounds.
c . Use required number of shims to
b. Refer to Operator and Organizational
produce 0. 001 to 0, 005 inch end play on
Maintenance Manual and install overspeed
shaft (11).
switch.
Section IX. FUEL PUMP GROUP
8-61. GENERAL.
If necessary, remove gear (24)
from shaft (25), using a suitable puller and
The fuel pump is mounted to the
step plate.
accessory drive group, the pump is driven
WARNING
by a gear on the accessory drive shaft.
The fuel pump consists of a gear driven
Cleaning Solvents are flammable and
moderately toxic to skin, eyes and
shaft, sleeve bearings, fuel propelling
respiratory tract. Eye and skin
gears, and seals. The pump causes fuel
protection required. Good general
to flow from the day tank into the fuel in-
ventilation is normally adequate.
jection pump housing.
8 - 6 2 . REMOVAL.
Compressed air used for cleaning and
q
drying purposes can create airborne
a. Refer to Operator and Organizational
particles that may enter the eyes.
Maintenance Manual and remove over speed
Pressure shall not exceed 30 psig.
switch.
Eye protection is required.
CLEANING .
8-64.
b. Refer to Operator and Organizational
Maintenance Manual and remove fuel hose
Clean parts with an approved clean-
from fuel pump.
ing solvent and dry parts with low pressure
c. Remove tachometer drive group
c o m p r e s s e d air.
8-65.
INSPECTION .
d. Refer to figure 8-15 and remove fuel
pump by removing bolts (4), lock washers
a. Refer to table 1-1 and inspect fuel
(5) and gasket (7).
pump group for dimensional tolerances.
DISASSEMBLY.
8-63.
Replace all parts that exceed maximum
allowable wear and clearance.
Refer to figure 8-15 and disassemble
fuel pump group in the order of index num-
b. Inspect pump cover for nicks, scor-
bers assigned. Pay particular attention to
ing and cracks. Replace defective cover.
the following:
NOTE
c. Inspect gear teeth for nicks, burrs,
cracks and broken teeth. Nicks and burrs
Pump body (30) and cover (22) should
that extend below the hardened surface of
be carefully separated due to the
the gear teeth are cause for rejection of
sealant that was used during assembly.
the gear.
8-33
Change 8
