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TM5-4930-237-10
Table 3-1. Troubleshooting - Continued
Malfunction
Test or Inspection
Corrective Action
D1 NOZZLE
1. FLOW HANDLE FAILS TO OPERATE SMOOTHLY.
Step 1. Inspect flow handle area for signs of dirt or other foreign matter.
Clean area around flow handle.
Step 2. Connect nozzle to aircraft receptacle. Operate flow handle several times to check for
sticking or binding,
If flow handle is sticking or binding, replace D1 nozzle.
2. LEAKAGE FROM OUTLET END.
Step 1. Remove dust cap and inspect inside for seal. Inspect seal for cuts, tears, or
distortion.
If seal is missing or damaged, replace D1 nozzle.
Step 2. Inspect three interlock pins for damage or distortion. Press on end of each to check for
sticking or binding.
If interlock pins are missing or damaged, replace D1 nozzle.
3. INADEQUATE FUEL FLOW.
Step 1. Remove dust cap, retainer, and strainer. Check strainer for dirt or other foreign
matter.
Clean strainer by removing all dirt and foreign matter.
Step 2. With nozzle installed on receptacle, check flow handle is fully opened.
If flow handle will not move or stay at full open position, replace D1 nozzle.
4. SEXLESS COMPONENTS WILL NOT LOCK TOGETHER.
Disconnect parts. Check interlock pin(s) for damage, distortion, or missing parts.
If interlock pin is damaged or missing parts, replace D1 nozzle.
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