TM 10-4930-351-14
DIRECT SUPPORT MAINTENANCE
ADVANCED AVIATION FORWARD AREA REFUELING SYSTEM MODEL M100A1
DIRECT SUPPORT TROUBLESHOOTING PROCEDURES
INTRODUCTION
The troubleshooting procedures provided in this chapter assume that unit troubleshooting has been performed
unsuccessfully. Troubleshooting table 1 cannot list all malfunctions that may occur, all the tests and inspections needed to
find the fault, or all the corrective actions needed to correct the fault.
Table 1. Direct Support Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
FUEL TRANSFER PUMP
1. Pump will not prime
Inspect vane pump.
a.
Disassemble rotary vane pump, inspect components for cuts, scratches, burrs, etc. and replace any that are
damaged
b.
Replace vane pump packings. (WP 0092 00 or WP 0096 00)
2. Pump leaks at inlet
Inspect inlet packing.
a.
Remove inlet.
b.
Check for debris around O-ring. Check physical condition of O-ring. Clean inlet or replace O-ring, as required.
3. Pump leaks at input shaft
Inspect shaft seal and O-rings.
a.
Remove shaft seal housing.
b.
Replace shaft seal and O-rings. (WP 0091 00 or WP 0094 00)
4. Pump leaks at vane pump housing
Inspect vane pump O-rings.
a.
Remove vane pump housing.
b.
Replace vane pump housing O-rings. (WP 0095 00)
0014 00-1
