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 TM 55-1905-220-14-3
Table 3-28.
Generator Engine - Low Oil Pressure Troubleshooting.
(Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3.
Pressure gage and alarm switch (Cont).
Step 2.
Check gage line obstruction.
Remove and clean the alarm switch line; replace if necessary. Refer to paragraph
3-100.
Step 3.
Check gage orifice for plugging.
Remove and clean the alarm switch orifice. Refer to paragraph 3-100.
Step 4.
Check electrical alarm panel for faults (Pilot House).
Repair or replace defective electrical equipment. Refer to paragraph 3-65.
4.
Oil pump.
Step 1.
Check for partially clogged intake screen.
a. Remove and clean the oil pan and oil intake screen. Refer to paragraph 3-89,
3-94 and 3-96.
b. Consult the Lubrication Oil Grades Table for the proper grade and viscosity of
oil.
c.
Change the oil filters. Refer to paragraph 3-74.
Step 2.
Check for faulty relief valve.
Remove and inspect the valve, valve bore and spring. Replace faulty parts. Refer
to paragraph 3-94.
Step 3.
Check for air leak in pump suction.
Disassemble the piping and install new gaskets. Refer to paragraph 3-95.
3-107
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