TM 5-5420-278-24&P
0066 00
0066 00-1/2 blank
DIRECT SUPPORT TROUBLESHOOTING
IMPROVED RIBBON BRIDGE (IRB)
RAMP BAY M16
NSN 5420-01-470-5825 P/N 12478918;
INTERIOR BAY M17
NSN 5420-01-470-5824 P/N 12478919.
PUMP SYSTEM TROUBLESHOOTING
NOTE
Refer to the general instructions in Introduction to
Troubleshooting, WP 0061 00, prior to performing pump system
troubleshooting.
1.
PUMP SYSTEM WILL NOT RAISE BAY (RAMP BAY ONLY)
Step 1. Check cylinder for internal leak.
Repair cylinder if leaking.
Step 2. Check pump for internal leak.
Repair pump if leaking.
Step 3. Check pump control valves for leaks.
Replace pump control valves if leaking.
Step 4. Check cylinder valve block for leaks.
Replace cylinder valve if leaking.
END OF TESTING
2.
PUMP SYSTEM WILL NOT HOLD BAY IN RAISED POSITION (RAMP BAY ONLY)
Step 1. Check pump control valves for leaks.
Replace pump control valves if leaking.
Step 2. Check cylinder valve block for leaks.
Replace cylinder block if leaking.
Step 3. Check cylinder for internal leak.
Repair cylinder if leaking.
END OF TESTING
Direct Support Pump System Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
END OF WORK PACKAGE