ARMY TM 9-6115-464-34
AIR FORCE TO 35C2-3-445-2
NAVY NAVFAC P-8-624-34
3-33. COOLANT THERMOSTAT AND HOUSING.
Refer to the Operator and Unit Maintenance Manual for coolant thermostat and housing maintenance
procedures.
Section IV. MAINTENANCE OF ENGINE LUBRICATION SYSTEM
3-34. GENERAL.
The engine oil pan serves as a reservoir for lubricating oil. It is equipped with a bayonet type gauge for
checking the oil level in the pan. Oil is drawn into a gear type, positive displacement pump through a screen
which prevents the entry of coarse abrasives. The oil pump forces the oil through a full flow type oil filter, which
removes minute abrasives. From the oil filter the oil flows into the header, a drilled passage in the cylinder
block, from which it is distributed to the internal engine components. A pressure transmitter measures oil
pressure in the header and transmits it electrically to the oil pressure gauge. Header oil pressure is also
measured by a low oil pressure switch which shuts down the engine if oil pressure falls to a dangerously low
level.
3-35. LUBRICATION OIL FILTER.
Refer to the Operator and Unit Maintenance Manual for lubrication oil filter maintenance procedures.
3-36. OIL LEVEL GAUGE.
Refer to the Operator and Unit Maintenance Manual for oil level gauge maintenance procedures.
3-37. OIL PAN ASSEMBLY.
a. Removal.
(1) If generator set has winterization kits installed, refer to Operator and Unit Maintenance Manual and
remove kits.
(2) Remove oil level gauge (1, figure 3-30).
(3) Remove elbow (7) from oil pan.
(4) Remove screws (2) and Iockwashers (3) to lower oil pan (4) and remove gaskets (5), and seals (6).
Discard seals and gaskets. Refer to paragraph 3-38 and remove oil pump assembly. Remove oil
pan.
b. Cleaning. Inspection, and Repair.
WARNING
Solvent, Dry Cleaning P–D-880, Type II is flammable and moderately toxic to skin,
eyes and respiratory tract. Eye and skin protection required. Good general ventilation
is normally adequate.
Failure to observe this warning could cause servere personal
injury.
(1) Scrape gasket remains from oil pan and cylinder block mating surfaces.
WARNING
Compressed air used for cleaning and drying purposes can create airborne particles
that may enter the eyes. Pressure shall not exceed 30 psig and use only with adequate
chip guards and chipping goggles.
Failure to observe this warning could cause
servere personal injury.
(2) Clean all parts with dry cleaning solvent (Federal Specification P-D-680) and a stiff bristle brush.
Dry thoroughly with filtered, compressed air.
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