TM 5-3825-225-14&P
Section II. DIRECT SUPPORT AND GENERAL SUPPORT
TROUBLESHOOTING PROCEDURES
5-2. GENERAL.
a. This section contains the troubleshooting procedures for direct and general support maintenance personnel.
b. Possible water distributor malfunctions are listed in the troubleshooting Symptom Index (see paragraph 5-3).
The Troubleshooting Table (Table 5-1) lists the malfunction, the probable cause, and the corrective action
to be taken.
c. Before performing direct support and general support troubleshooting, ensure that all applicable unit
troubleshooting has been performed.
5-3. TROUBLESHOOTING SYMPTOM INDEX
Troubleshooting
Procedure
Page
Engine Fails To Crank........................................................................................................................ 5-2
Engine Cranks But Does Not Start..................................................................................................... 5-2
Engine Does Not Develop Full Power................................................................................................. 5-3
Exhaust Is Smoky .............................................................................................................................. 5-3
Oil Pressure Is Lost............................................................................................................................ 5-4
Engine Overheats.............................................................................................................................. 5-4
Water Distributor Pump Will Not Prime .............................................................................................. 5-4
Water Leaks Around Pump Shaft....................................................................................................... 5-4
Pump Has Low Operating Pressure and Weak Spray
......................................................................... 5-4
Pump Will Not Hold a Prime .............................................................................................................. 5-4
Table 5-1. Direct Support and General Support Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. ENGINE FAILS TO CRANK.
Check for internal seizure.
Replace any damaged parts or components. Replace the entire engine as necessary.
2. ENGINE CRANKS BUT DOES NOT START.
CAUTION
Air must be bled from the fuel system whenever any part between the fuel tank
and the injector pump has been disconnected or when the system has been
emptied of fuel. Failure to follow this caution may result in damage to equipment.
Step 1. Check the operation of the fuel injector pump. Disconnect the high pressure fuel lines one at a time
and crank engine. A well defined spurt of fuel should flow from each fuel line fitting.
If fuel does not flow from one or all of the fuel line fittings, replace the fuel injector pump (see
paragraph 5-22).
5-2
