TM 5-5420-280-23&P
TROUBLESHOOTING PROCEDURES
RAPIDLY EMPLACED BRIDGE (REB)
NSN 5420-01-481-3959 P/N 12480471
LAUNCH POWER UNIT (LPU) TROUBLESHOOTING
CAUTION
Never use starting fluid (ether) to assist starting LPU. Failure to
comply will result in damage to engine.
NOTE
Refer to the general instructions in Introduction to
Troubleshooting, WP 0004 00, prior to performing electrical system
troubleshooting.
Refer to Pallet Electrical System Schematic (WP 0122 00) when
performing troubleshooting tasks.
LPU Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. ENGINE CRANKS BUT DOES NOT START
Step 1. Check for clogged fuel tank filter.
If clogged, clean or replace engine fuel tank filter. Refer to WP 0102 00.
Step 2. Check for faulty fuel pump.
If faulty, replace fuel pump. Refer to WP 0101 00.
Step 3. Check for faulty fuel injectors.
If faulty, replace fuel injectors. Refer to WP 0111 00.
END OF TESTING
2. ENGINE DOES NOT START AT LOW TEMPERATURES
Step 1. Check for low voltage at pallet batteries.
a. If voltage is low, connect CBT power source to charge pallet batteries.
b. If batteries are damaged or will not charge, replace pallet batteries. Refer to WP 0113 00.
Step 2. Check for faulty engine glow plugs.
If faulty, replace engine glow plugs. Refer to TM 9-2815-250-24&P.
END OF TESTING
