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TM 10-4320-316-14
CHAPTER 3
OPERATOR MAINTENANCE INSTRUCTIONS
SECTION I. LUBRICATION INSTRUCTIONS
3-1. GENERAL. Refer to Lubrication Order LO10-4320-316-12 for the for proper lubrication procedures.
SECTION II. OPERATOR TROUBLESHOOTING PROCEDURES
3-2. INTRODUCTION. This section contains troubleshooting information for locating and correcting most of the
operating troubles which may develop in the DED pump assembly. Each malfunction for an individual component, unit,
or system is followed by a list of tests or inspections which will help you to determine corrective actions to take You
should perform the tests/inspections and corrective actions in the order listed.
This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective actions. If a
malfunction is not listed, or is not corrected by listed corrective actions, notify your supervisor.
Table 3-1 lists the common malfunctions which you may find during the operation or maintenance of the DED pump
assembly or its components. You should perform the tests/inspections and corrective actions in the order listed.
3-3. MALFUNCTION INDEX.
MALFUNCTION
PAGE NO.
STARTING HANDLE FAILS TO PULL ........................................................................... 3-2
STARTING HANDLE PULLS, BUT ENGINE FAILS TO START ..................................... 3-2
ERRATIC RUNNING OR FREQUENT STALLING.......................................................... 3-2
LACK OF POWER ......................................................................................................... 3-2
ENGINE STOPS RUNNING ........................................................................................... 3-3
PUMP FAILS TO PUMP WATER ................................................................................... 3-3
LOW DISCHARGE FLOW RATE ................................................................................... 3-3
3-4. OPERATOR TROUBLESHOOTING TABLE. Refer to Table 3-1 for the operator troubleshooting procedures
authorized for the DED pump assembly.
3-1
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