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TM 5-4930-234-13&P
CHAPTER 5
DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
Section I. TROUBLESHOOTING PROCEDURES
5-1.
GENERAL.
a.
This section contains troubleshooting information for locating and correcting most of the operating troubles
which may develop in the nozzle. Each malfunction for an individual component is followed by a list of tests or inspections
which will help to determine corrective actions to take. Perform the tests/inspections 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/assembly procedures refer to paragraph 5-3.
Table 5-1. Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
CAM-LOCK ARMS ARE LOOSE OR DO NOT LOCK IN PLACE.
Inspect cam arm and/or pin for cracks or looseness.
If damaged, replace cam arm and/or pin.
2.
UNISEX COUPLING LEAKS BETWEEN BODY AND ADAPTER.
Step 1. Inspect body and adapter for cracks or damage.
If cracks or damage are found, disassemble and replace damaged parts.
Step 2. Disassemble and inspect internal o-ring for cuts or wear.
If damaged, replace internal o-ring and assemble.
5-1
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