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TM 10-4320-256-14&P
CHAPTER 3
OPERATOR MAINTENANCE
Page
OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-1
Section I.
Lubrication Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-1
Section Il.
OperatorTroubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-2
Section Ill.
Operato Maintenance Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-5
OVERVIEW
This chapter contains maintenance for the pump assetily at the operatormaintenance level. In additiontothe
Lubrication instructions and operato troubleshooting procedures, it includes proceduresforinspection and service
of the fuel line,fuel tank, fuel tank adapter, pump, engine assembly, spark arrestor, frame and grounding
assembly.
Section I. LUBRICATION INSTRUCTIONS
Paragraph
Page
3-1
Lubrication Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-1
3-2
Lubrication Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-1
3-1. Lubrication Information.
a General. Lubrication of the pump assembly consists of Lubricating the gasoline engine. Refer to LO
9-2805-257-12 for information on the lubrication of the engine. Keep all lubricants in closed containers and stored
in a clean, dry place away from external foreign material that might inadvertently mix with lubricants. Keep all
lubrication equipment clean and ready for use.
b. Cleaning. Keep all external parts not requiring lubrication clean and free of lubricants. Before lubricating
the equipment, wipe all lubrication points free of dirt and grease. Clean all lubrication points after lubrication to
prevent accumulation of foreign matter.
3-2. Lubrication Guidelines.
a. Service the lubrication points at the proper intervals in accordance with LO 9-2805-257-12.
b. Check the engine crankcase oil level frequently, as oil consumption may increase.
c. Under cold operating conditions the engine oil may require more frequent changing because of increased
contamination by dilution and sludge formation.
3-1
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