TM 5-3810-307-24-1-2
TROUBLESHOOTING
General (Refer To Figure K-11.)
The following troubleshooting flow chart (Figure K-11) is used to isolate problems with the impact
hammer. The flow chart indicates the major source of problems likely to be encountered. The
troubleshooting procedures for the impact hammer, as well as the spotter, are then listed in Table K-5.
The four test procedures in the troubleshooting flow chart (Figure K-11) are provided after Table K-5.
CAUTION
Do not use any starting fluids as a starting aid as they can cause
excessive piston stroke and damage to the impact hammer.
Hammer Trip System
Fuel System
Perform Throttle Valve
(Needle Block) Test.
Perform Throttle Valve
(Needle Block) and
Fuel Pump Test.
NO
OK?
YES
OK?
YES
Perform Fuel Pump Inlet/
NO
Outlet Check Valve Test.
Throttle Valve
NO
(Needle Block)
OK?
YES
Remote Throttle
Fuel Pump
Fuel Injectors
Perform Cylinder
Compression Test
NO
OK?
YES
Air Supply (Table K-5)
Cylinder Compression (Table K-5)
Figure K-11. Troubleshooting Flow Chart
