TM 5-1940-322-24
FIELD TROUBLESHOOTING
BRIDGE ERECTION BOAT (BEB)
MK II-S
P/N 12492423
MECHANICAL SYSTEMS TROUBLESHOOTING
WARNING
Eye protection is required when performing fuel system troubleshooting
checks. Failure to wear eye protection may result in injury to personnel.
Fuel is extremely flammable and explosive. Do not perform fuel system
checks and services near open flames or sparks and while smoking.
Always keep a fire extinguisher nearby. Burning fuel or fuel that
explodes may cause injury or death to personnel.
Disconnect battery ground cable (WP 0053 00) prior to performing
engine troubleshooting procedures. Failure to comply may cause injury
to personnel.
NOTE
Prior to performing any mechanical troubleshooting, refer to General
Troubleshooting instructions in Introduction to Troubleshooting,
Table 1. Engine Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Check position of master switch.
Set master switch to ON position.
1. ENGINE WILL NOT
CRANK
1. If meter displays less than 24 volts,
2. Check starting battery meter
check battery (TM 9-6140-200-14).
reading.
2. If battery voltage is less than
24 volts, charge battery
(TM 9-6140-200-14).
3. If battery will not hold a charge,
3. Check battery connections and
1. Clean cable ends and tighten
cables.
2. Replace defective cables
4. Check circuit breaker.
Reset circuit breaker
(TM 5-1940-322-10).
If master switch is defective, replace
switch.
6. Check starter and relay for
If starter or relay is defective, replace
malfunctions and connections.
If starter switch is defective, replace
starter switch.
If flywheel is damaged, replace