TM 9-4120-405-13&P
Table 3-1. Operator Troubleshooting. (cont.)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2. Check to see that shutters on shutter box have fully opened. (Refer to TM 5-6115-585-12.)
If shutters are not open, notify your supervisor.
Step 3. Check that vent on under side of fuel filter cap is open. (Refer to TM 5-6115-585-12.)
Clear vent hole.
Step 4. Check to see that blower housing grill and engine cooling fins are clean. (Refer to TM 5-6115-585-12.)
If grill and fins are not clean, notify your supervisor.
Step 5. Low oil pressure will cause engine to shut down. Check oil level. (Refer to TM 5-6115-585-12.)
Add correct weight oil, if necessary.
9.
ENGINE RUNS BUT EMITS BLACK SMOKE IN EXHAUST.
Step 1. Check air cleaner assembly to see that inlet shutter assembly is in proper position for either COLD
WEATHER or NORMAL WEATHER operation. (Refer to TM 5-6115-585-12.)
Push knob and slide assembly into proper position.
Step 2. Check for restricted air intake.
Red signal on air flow indicator should be visible.
(Refer to TM
5-6115-585-12.)
Remove any restricted air intake port. Check and, if necessary, replace air cleaner filter.
Step 3. Check load on generator-set by checking % rated current meter on control panel.
Load should re gister 60 Hz; if It does not, notify your supervisor.
10. ENGINE RUNS WITH EXCESSIVE OIL CONSUMPTION.
Step 1. Inspect for oil leaks especially at front and rear oil seals, at oil pan gasket and dipstick cap. (Refer to TM
5-6115-585-12.)
If leak is present, notify your supervisor.
Step 2. Check for red warning signal on air flow indicator indicating a dirty air cleaner filter.
(Refer to TM
5-6115-585-12.)
Clean or replace filter. Reset air flow indicator by pushing reset button.
Step 3. Check for air leaks to crankcase (loose oil filler cap, leaks at gaskets, etc.). (Refer to TM 5-6115-585-12.)
Tighten oil filler cap or notify your supervisor.
3-8
