4-8. Organizational Trouble-
shooting - continued.
Table 4-2. Troubleshooting (cont)
Test or Inspection
5. EXCESSIVE VIBRATION.
Step 1. Check for loose compressor or engine mounts.
Tighten all the bolts holding the engine and compressor to the truck frame.
Step 2. Check if belts are out of alignment.
b. Loosen nuts attaching guard to handtruck frame.
c. Loosen screw attaching guard to compressor. Remove guard.
d. Loosen nut on hub of flywheel pulley and adjust pulley on shaft until belts
align between pulleys. Tighten nut.
e. Install guard by attaching screw to compressor and nuts to handtruck frame.
6. COMPRESSOR OVERHEATING.
Step 1. Check for dirt in cooling coil and cylinder fins.
Using air hose blow dirt from cooling coils and fins.
Step 2. Check for poor ventilation and high room temperature.
If compressor cannot be moved, check possibility of piping intake to cooler
7. INTAKE AIR CLEANER NOT FILTERING PROPERLY.
Step 1. Inspect the compressor air cleaner for the presence of moisture or dirt.
Replace defective filter element or the complete cleaner assembly if required.
a. Removal. Remove the air cleaner from cylinder head by turning
(1) Remove the wingnut and cover and remove the element from the air