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4-4
TM 5-4930-226-12&P
Table 4-1. Troubleshooting
Malfunction
Test or Inspection
Corrective Action
1. LEAKAGE AROUND ACTUATING RING
Disassemble coupling end assembly (para 4-11) and check for damaged packing.
Replace damaged packing and reassemble coupling end assembly (para 4-11).
2. FAILURE OF HANDLE TO OPERATE PROPERLY
Inspect all handle components for damage or wear.
Disassemble handle to find unserviceable component(s). Replace components as required (para 4-12).
3. LEAKAGE FROM HANDLE AREA
Step 1. Disassemble handle (para 4-12) and check for damaged packing.
Replace damaged packing.
Step 2. While the handle is disassembled check the cartridge assembly for freedom of piston movement. Visually inspect the di-
aphragm for damage. DO NOT DISASSEMBLE THE CARTRIDGE ASSEMBLY.
Replace an unserviceable piston cartridge assembly and reassemble handle (para 4-12).
4. LEAKAGE FROM COUPLING END
Step 1. Disassemble handle and valve assembly (para 4-12) and check for damaged packing.
Replace damaged packing.
Step 2. While the handle and valve assembly (para 4-12) is disassembled inspect the sleeve assembly for damage.
Replace an unserviceable sleeve assembly and reassemble the handle and valve assembly.
5. SLEEVE ASSEMBLY FAILS TO CLOSE OFF
Step 1. Disassemble handle and valve assembly (para 4-12) and inspect for damaged packing
Replace damaged packing.
Step 2. While the handle and valve assembly (para 4-12) is disassembled check for a missing valve spring.
Replace spring (para 4-12).
Stpe 3. Inspect for presence of foreign matter between sleeve and body.
Remove sleeve, clean and replace wiper seal and packing (para 4-12). Reassemble handle and valve
assembly.
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