Table 2-2. Troubleshooting - TM-55-1905-223-24-160037

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Table 2-2. Troubleshooting

TM-55-1905-223-24-16 Stern Anchor Winch for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

SECTION V. UNIT MAINTENANCE PROCEDURES

TM 55-1905-223-24-16

Table 2-2. Troubleshooting

Malfunction

Test or Inspection

Corrective Action

STEP 1. Check for excessive hydraulic fluid pressure (due to excessive drain flow).

Replace hydraulic motor (para. 2-17).

STEP 2. Check for damaged or defective hydraulic motor assembly housing.

Replace hydraulic motor assembly (para. 2-15).

14. Alternating current motor will not operate.

STEP 1. Check to see if circuit breaker has tripped (Reference TM 55-1905-223-10).

STEP 2. Check for defective alternating current motor by making continuity readings.

Replace alternating current motor (para. 2-17).

15. Winch will not rotate or rotates too slow.

STEP 1. Check to see if the hydraulic fluid pressure is low.

Make sure the pressure gauges are reading the proper pressure.

STEP 2. Check to see if the hydraulic fluid level is low.

Add hydraulic fluid if required (Item 3, PMCS Table).

STEP 3. Check to see if the failsafe brake is disengaging. Hydraulic pressure is okay but motor will not turn and

no audible sound of brake releasing is heard.

a. Check line from hydraulic valve to failsafe brake for blockage.

b. Replace/repair hydraulic valve (para. 2-15).

c. Replace/repair failsafe brake (para. 2-16).

STEP 4. Check to see if the winch shaft is binding. If shaft is binding, operation will be erratic and noisy.

Lubricate the winch. Refer to LO 55-1905-223-12.

STEP 5. Check for overloading on the winch.

Reduce load.

STEP 6. Check for defective hydraulic motor assembly.

Replace hydraulic motor assembly (para. 2-15).

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