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3-4
TM 5-4930-226-12&P
Table 3-2. Troubleshooting
Malfunction
Test or Inspection
Corrective Action
1. LEAKAGE FROM COUPLING DURING REFUELING
Place latch handle in no-flow (down) position. Reach inside of body and remove the seal. Inspect wiper seal for damage,
Replace seal by making sure the “V” slot is facing towards handle, place seal onto sleeve.
2. HANDLE FAILS TO OPERATE SMOOTHLY
Inspect handle area for signs of dirt or other foreign matter.
Clean area around handle.
3. NOZZLE FAILS TO MAKE CONNECTION
Step 1. Insure that the actuating ring is in the latched (forward) position.
Retract actuating ring by pulling cable loop.
Step 2. Inspect coupling end of nozzle for signs of dirt or other foreign matter.
Clean area around coupling end.
Step 3. Check for presence of dirt or other foreign matter around actuating ring and housing.
Clean area around actuating ring and housing.
4. INADEQUATE FUEL FLOW
Step 2. Check strainer for presence of dirt or other foreign matter.
To do this, remove strainer assembly (figs. 3-2 and 3-3) from nozzle assembly. Open cam-lock keeper and
remove dust plug. Unscrew body from end; remove gasket (fig. 3-2) or O-ring (fig. 3-3) and remove strain-
er. Clean strainer by removing all foreign matter or dirt.
Step 2. While the strainer is removed, inspect it for any damage.
Replace strainer by replacing gasket (fig. 3-2) or O-ring (fig. 3-3) on strainer. Place body and coupling
over strainer and screw into end. Hand tighten only. Replace dust plug on coupling.
5. LEAKAGE FROM STRAINER BODY OR AT CAM-LOCK COUPLER
Remove strainer assembly (fig. 3-2) from nozzle assembly. Open cam-lock keeper and remove dust plug (8). Unscrew body (5) from
end (l), remove gasket (4), strainer (3) and gasket (2) from end (l). Remove gasket (7) from coupling (6), Unscrew coupling (6)
from body (5) if damaged or leaking. Inspect gaskets for damage.
Replace any damaged gaskets. Place gasket (7) in coupling (6). Replace end (1) in nozzle assembly. Re-
place gasket (2) in end (1). Replace gasket (4) on strainer (3). Place body (5) and coupling (6) over
strainer (3) and screw into end (1). Hand tighten only. Replace dust plug (8) on coupling (6).
6. LEAKAGE FROM STRAINER BODY OR AT CAM-LOCK COUPLER (Serial No. Range 0001 thru
0470)
Remove strainer assembly (fig. 3-3) from nozzle assembly. Open cam-lock keeper and remove dust plug (7). Unscrew body
(4) from end (l); remove strainer (3) and O-ring (2) from end (1). Remove gasket (6) from coupling (5). Unscrew coupling
(5) from body (4) if damaged or leaking. Inspect O-ring for damage.
Replace damaged O-ring. Place gasket (6) in coupling (5). Replace end (1) in nozzle assembly. Replace O.
ring (2) in end (1). Place body (4) and coupling (5) over strainer (3) and screw into end (1). Hand tighten
only. Replace dust plug (7) on coupling (5).
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