b. Inspection Check for dents, cracks and rubbing.
c. Inspection. Check the cock for damage. Tighten
Replace if defective.
the packing nut. Replace unserviceable cock.
c. Installation. Reverse procedure in a. above.
d. Installation. Reverse the procedure in a. above.
a. Removal. Removal temperature control valve
blower wheel.
per paragraph 4-39.
b. Inspection. Check for dents, loose or missing
b. Cleaning. Wash the valve in approved cleaning
blades, and rubbing. Replace if defective.
solvent and apply air pressure to blow out any
c. Installation. Reverse procedure in a. above.
foreign matter.
4-49 Fuel Tank Accessories (fig. 4-14
c. Inspection. Check the valve for damage. Tighten
and 4-15)
the packing nut. Replace unserviceable valve.
a. Removal
d. Installation. Reverse the procedure in a. above.
(1) Cap. Twist the fillercap a quarter turn coun-
terclockwise and lift it up from the filler neck of the
tank.
a. Removal. Remove 6 screws securing outer duct
(2) Gage. To remove the fuel level gage, located
assembly to heater housing. Release spring retaining
on the top of the fuel tank, unscrew.
pin. Remove control rod from damper arm and
(3) Drain cap. Remove the drain cap by un-
remove outer and inner duct assemblies.
screwing.
b. Disassemble. Remove cotter pin from shaft and
b. Inspection.
opposite damper arm. Remove shaft from damper.
(1) Cap. Inspect the fillercap for bends and
Remove damper blade.
damaged gasket. If the fillercap is defective, replace
c. Inspection. Check parts for serviceability.
it with a serviceable one. Insure that cap vent is in
Replace unserviceable parts.
open position.
d. Assembly. Reverse procedure in b. above.
(2) Gage. Check the fuel level gage for legible
e. Installation. Reverse procedure in a. above.
markings and distortions, and the crystal for breaks,
cracks, and cloudiness. Check the gaskets for
deterioration and wear. If these parts are defective,
a. Removal.
install serviceable ones.
(1) Remove the engine, paragraph 4-15
(3) Drain cap. Inspect for serviceability. Replace
(2) Unscrew and remove fan hold-down bolt.
if defective.
(3) Using the special extractor bolt furnished,
c. Installation. Reverse procedures in a. above.
remove the fan assembly, blower wheel and blower
wheel housing assembly from the engine crankshaft.
4-50 Wheel Assembly (fig. 4-16)
(4) Remove the 4 nuts and washers securing the
a. Removal. Block up heater. Remove cotter pin
fan guard to the blower wheel housing and separate
and retainer washer. Remove wheel.
the fan guard from the blower wheel housing.
b. Inspection. Check for serviceability. Replace if
(5) Using a sockethead wrench loosen the set-
defective.
screw securing the blower wheel to the intake fan
c. Installation. Reverse procedure in a. above.
assembly and remove the blower wheel housing and
the blower wheel from the intake fan assembly.
4-51 Lighter Assembly
b. Inspection. Check the guard screen for ser-
Refer to paragraph 3-15 for replacement of the flint.
viceability. Paint if required. Replace if not ser-
viceable.
c. Installation. Reverse the procedure in a. above.
4-52 Lighter, Torch
a. Removal. Remove the torch lighter from the
clamp on the heater.
b. Inspection. Check the torch for damaged
blower fan.
asbestos wick and for bent or broken stem; if the
b. Inspection. Check the blower fan for damaged
torch is defective, replace it with a serviceable one.
blades, loose or missing rivets, cracks and dents.
c. Installation. Reverse the procedure in a. above.
Replace if unserviceable.
c. Installation. Reverse procedure in a. above.
4-53 Cord Assembly, Duct Anchor
4-47 Housing, Blower Wheel (fig. 4-13)
a. Inspection. Check the duct anchor cord for bent.
fasteners and broken springs and for frays and worn
spots. Replace if defective.
blower wheel housing.
