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 TM 55-4920-373-14&P
d. Replace ruptured or dented case.
e. Replace stator if test indicates grounded
winding. Refer to paragraph 4-6.
e . Replace fittings if threads are damaged.
3. Starter Motor. To repair the starter motor
f. Install new gasket and element.
proceed as follows:
4-17. ENGINE. The following instructions pro-
a. Remove end plates and inspect bearings.
vide repair procedures for the engine and major
Replace damaged bearings.
components or accessories.
b. Replace inoperative Bendix assembly.
1. Magneto. To repair the magneto, proceed
as follows:
c. Clean armature and inspect commutator
segments. Gouged or scored commutator must be
a. Disassemble magneto.
turned in a lathe. Mica separators must be cut
down to insure insulation between segments. Ship
b. Replace defective gears.
unit to Depot Maintenance for these procedures.
c. Replace defective capacitor.
d. Replace defective brushes.
d. Replace defective end cap gasket or
4-16. HYDRAULIC SYSTEM. The following in-
capacitor mounting gasket.
structions provide repair procedures for hydraulic
system components.
e. Replace dented or ruptured casing parts.
1. Pump. To repair the pump proceed as
f. Replace defective bearings and bearing
follows:
mounts.
a. Disassemble hydraulic pump.
g. If magneto is damaged beyond repair,
b. Examine all gaskets and seals. Replace
ship unit to Depot and replace with known
any defective gaskets or seals.
serviceable unit.
c. Replace all parts that show wear,
2. Fuel Pump. To repair fuel pump, proceed
as follows:
corrosion, or scoring.
a. Disassemble fuel pump.
d. Replace defective bearings, or end plates
with scored machined surfaces.
b. Discard gaskets and seals.
e. Thoroughly clean all metal parts of pump.
c. Clean all parts thoroughly.
2. High Pressure Filter. To repair high
pressure filter, proceed as follows:
d. Replace all casing parts that are dam-
aged beyond repair.
a. Disassemble filter.
e. Replace damaged fuel line fittings.
b. Discard element and gasket.
f. Install new gaskets and seals.
c. Thoroughly clean parts.
3 . Carburetor.
To repair carburetor, proceed
d. Replace dented or punctured case.
as follows:
e. Replace top case if fitting threads are
a . Disassemble carburetor.
damaged.
b. Discard gaskets and seals.
f. Install new gasket and element.
c. Replace damaged float and fuel valve
3. Low Pressure Filter. To repair the low
needle.
pressure filter, proceed as follows:
d. Replace all springs.
a. Disassemble filter.
e. Replace all casing parts damaged
b. Discard gasket and element.
beyond repair.
f . Replace fuel line fittings if threads are
c. Thoroughly clean all parts.
damaged.
4-28
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