Table 3-3. Unit Troubleshooting - Continued
TEST OR INSPECTION
AIR COMPRESSOR OVERHEATS - Continued.
Check belt guard assembly for accumulation of foreign matter on screens.
Remove screw (1), lockwasher (2), four bolts (4), and belt guard assembly (3) from air compressor unit (6).
Clean screen (5) on belt guard assembly with compressed air and/or water. If belt guard is damaged, replace
AIR COMPRESSOR UNIT VIBRATES BADLY.
Check for loose spark plug lead on engine.
Push spark plug cap firmly onto spark plug.
Check for fouled spark plug on engine.
Remove plug and check for carbon build-up or gasoline on spark plug electrodes. Clean plug if possible. If
plug cannot be cleaned, replace it. Replace spark plug into engine.
Inspect mounting bolts and tension knobs holding engine and air compressor onto air tank.
Tighten all loose bolts and tension knobs.