Section XIV. ENGINE AND POWER COMPARTMENT COOLING SYSTEM
the other one up or down as necessary.
tightening the nut.
a. The gasoline engine is air-cooled. The air is
sucked in by the vanes on the engine flywheel and
blown through the air shroud to cool the engine.
b. The power compartment has three shutters to
control the temperature. One shutter controls the air
flow to the gasoline engine and with the shutter in the
rear door is operated by preset thermostatic controls.
The third shutter, located in front of the refrigeration
4-60. Rear Door Shutter and Control Rod
a. Control Removal and Disassembly.
washer (4) securing the control rod (6) to the shutter arm
(5) and slide the control rod from the arm.
(2) Remove the nut (7) from the top of the
control rod (6) and slide the rod from the control arm (8).
Remove the nut (7) from the rod.
(3) Remove the two capscrews (11) and
(1). Remove the bracket and control.
(4) Remove the bracket from the control by
b. Shutter Removal. Remove the 14 machine
screws (14, fig. 4-58) and lockwashers securing the
shutter (15) to the door (13) and lift out the shutter
Dry cleaning solvent, P-D-680 or P-S-661,
used to clean parts is potentially
dangerous to personnel and property.
Use in a well-ventilated area as the
fumes are dangerous if inhaled. Avoid
repeated and prolonged skin contact. Do
not use near open flame or excessive
heat. Flash point of solvent is 1OOF.-
c. Control and Shutter Cleaning, Inspection and
Repair. Clean all parts in a cleaning solvent. Inspect
the threads for damage. Inspect the control mounting
bracket and shutter for bends, cracks, or distortion.
Straighten any bends, if possible. Replace all damaged
d. Shutter Installation.
Reverse the removal
procedures in b above.
e. Control Reassembly and Installation. Reverse
the procedure in a above.
f. Adjustment. If the shutter fails to open or close
Figure 4-67. Rear door shutter control removal.