| |
TM5-4930-235-13&P
CHAPTER 5
INTERMEDIATE DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
Section I. TROUBLESHOOTING PROCEDURES
5-1. General.
a. Table 5-1 lists common malfunctions which you may find during operation or maintenance of the Closed Circuit
Refueling (CCR) Nozzle Assembly or its related parts. You should perform the tests and corrective actions in the order
listed.
b. This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective actions. If a
malfunction is not listed or is not corrected by listed corrective actions, notify your supervisor.
5-2. Troubleshooting. Table 5-1 lists the common malfunctions which may occur during operation or maintenance of
the nozzle. Perform test/inspections and corrective actions in the order listed. For nozzle disassembly/reassembly
procedures refer to paragraph 5-3.
Table 5-1. Troubleshooting
Malfunction
Test or Inspection
Corrective Action
1. INADEQUATE (SLUGGISH) FUEL FLOW.
Step 1. Remove coupling half, strainer body, and strainer from nozzle subassembly. Check strainer for dirt or other
foreign matter.
Clean strainer by removing all dirt and foreign matter.
Step 2. While strainer is removed, inspect for damage.
Replace strainer if damaged. Install strainer in nozzle subassembly. Install strainer body and coupling half.
Hand-tighten only.
Step 3. Internal blockage.
Disassemble nozzle subassembly. Inspect for internal blockage, clean, and assemble.
2. HANDLE WILL NOT LOCK IN FLOW (ON) OR NO FLOW (OFF) POSITION.
Inspect thumb latch and thumb spring.
Check that dowel pin is not cracked, rounded, missing, or broken off. Check that spring is not broken or
missing. Replace either part if damaged.
5-1
|