Inspect gasket (2, figure 3-1),
dust cap (13) and O-ring (14)
Remove and empty dust cap (13).
Inspect air cleaner for loose
MAINTENANCE OF RADIATOR ASSEMBLY.
Inspection. (See figure 4-27.)
(1) Inspect radiator core, sight
glass, piping, and hose
connections for leaks.
(2) Inspect hoses for leaks.
(3) Inspect motor for evidence
of overheating and loose
(4) Inspect fan belt guard and
fan guard for loose
(5) Remove fan guard mounting
nuts and fan guard, figure 4-
28. Inspect fan belt for tears,
breaks, or frayed edges.
(6) Check fan belts to see that
they do not move more
than 1/2 inch (12.7mm)
with the thumb against
each belt (see figure 4-1).
(7) Reinstall fan guard and
mounting screws and
Service. Service the radiator as
Remove radiator cap slowly to permit
pressure to escape prior to removal of
(1) Check coolant level at sight
glass. If low, remove cap
and add coolant.
(2) Check coolant strength with a
hydrometer for winterization
protection. If weak, add same
type of coolant presently in
radiator. Refer to table 3-1 for
(3) Open radiator cap access door on top of
unit and fill radiator until coolant level is 2
inches (51 mm) below filter neck (center of
(4) Fasten tag near radiator cap indicates date,
type of coolant, and level of protection.
Replace cap and close access door.
FITTINGS. See figure 4-29 and inspect all fuel lines
and fittings for loose connections, leaks, and breaks.
MAINTENANCE OF FUEL TRANSFER PUMP
Inspection. See figure 3-2 and inspect fuel
transfer pump for leaks at elbows, connectors,
drain cocks, and filters. Tighten as necessary.
Inspect motor for overheating indications.
Service. Service the filter and strainers as
follows (see figure 4-31):
(1) Remove screw (24), washer (25),
large can (26), and filter element
(27) in can and install with gasket
(28), washer (25), and screw (24).
Tighten securely. Replace gasket
(28) if defective.
(2) Remove nut (30), washer (31),
small can (32), and metal
strainer (33). Replace strainer
and tighten strainer assembly
with nut (30). Removal and
replacement of both strainers
are the same.
MAINTENANCE OF FUEL TANK ASSEMBLY.
(See figures 4-33, 4-34, and 4-35)
Fuel Level Switches.
(1) Inspect the wires to the switch for
(2) Inspect, for loose terminals or
other signs of damage.
(3) If defective, refer to