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 TM 55-4920-373-14&P
d. Clean and repair, or replace cylinder
d. Clean unit thoroughly. Replace gasket
head with serviceable part, as required.
and damaged parts.
10. Cylinder Block. To remove cylinder
6. Fuel Pump. To remove the fuel pump (item
block (item 5, figure 4-4), proceed as follows:
7, figure 4-2) proceed as follows:
a. Remove cylinder head and gasket.
a. Disconnect inlet and outlet fuel lines.
b. Remove mounting bolts while supporting
b. Remove two bolts securing fuel pump
cylinder block.
mounting flange to engine block.
c. Remove cylinder block and gasket (item
c. Repair or replace with serviceable unit
6, figure 4-4).
as required.
d. Clean and repair or replace cylinder
7 . Carburetor. To remove the carburetor,
block as required.
(item 14, figure 4-2) proceed as follows:
11. Flywheel. To remove the flywheel (item
a. Disconnect fuel lines.
8, figure 4-4), proceed as follows:
b. Disconnect carburetor throttle and choke
a. Remove fan shroud (item 7, figure 4-4).
control cables.
c. Remove two mounting bolts while support-
b. Remove flywheel locknut and washer.
ing unit and remove carburetor.
c. Slide flywheel off driveshaft.
d. Repair or replace with serviceable unit
as required.
d. Clean and repair, or replace flywheel
with serviceable unit as required.
8. Governor. To remove the governor (item
23, figure 4-4) proceed as follows:
12. Flywheel Alternator. To remove flywheel
alternator (item 9, figure 4-4), proceed as
a.
Remove governor control spring.
follows:
b. Disconnect governor oil line.
a . Remove fan shroud (item 7, figure 4-4).
c.
Disconnect carburetor control linkage.
b. Remove flywheel (item 8, figure 4-4).
c. The plugs to the regulator module,
d. Disconnect tachometer cable.
rectifier module, and ammeter wire may be
disconnected.
e. Remove four bolts mounting governor to
engine front plate and remove governor and gasket.
d. Remove the regulator module and
f. Repair or replace with serviceable unit
rectifier module by removing two screws on each
unit.
as required. Replace gasket.
e. Remove the ammeter wire.
9. Cylinder Head. To remove the cylinder
head (item 3, figure 4-4) proceed as follows:
f. Remove the stator by removing four
a. Remove spark plugs (item 1, figure 4-4).
mounting screws and lockwashers.
b. Remove 14 head bolts (item 2, figure
g. Repair alternator, or replace damaged
components as required.
c. Remove cylinder head and gasket (item
13. Engine Gear Cover. To remove engine
4, figure 4-4). It may be necessary to insert a
flat instrument to pry cylinder head free.
follows:
CAUTION
a. Remove fan shroud (item 7, figure 4-4).
b. Remove flywheel.
If it becomes necessary to pry cylinder head,
c. Remove alternator assembly (item 9,
use caution to avoid scoring machine mating
surfaces.
4-26
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