3–18. TAIL WHEEL LOCK ACTUATOR LOCKING PIN – DOES NOT ENGAGE LOCKING 3–18 PLATE OR DOES NOT DISENGAGE FROM LOCKING PLATE

TM 1-1520-238-T-4 3–35 3–18. TAIL WHEEL LOCK ACTUATOR LOCKING PIN – DOES NOT ENGAGE LOCKING 3–18 PLATE OR DOES NOT DISENGAGE FROM LOCKING PLATE Tools: Nomenclature Part Number Tool Kit, Aircraft SC518099CLA01 Mechanic’s Jack, Hydraulic Axle, MIL-J-26013 5-Ton Personnel Required: 67R Attack Helicopter Repairer One person to assist References: TM 1-1520-238-23 TM 1-1520-238-T-5 1. Visually inspect tail wheel lock actuator. Is lock actuator locking pin visible? YES Go to step 2. NO Go to step 3. 2. Engage lock actuator locking pin. Using handle, does lock actuator pin engage locking plate hole when tail wheel is centered? YES Go to step 4. NO Go to step 5. 3. Move actuator handle up and center tail wheel. Is lock actuator locking pin visible? YES Go to paragraph 3–11. NO Replace tail wheel lock actuator locking pin TM 55-1520-238-23. 4. Start APU TM 55-1520-238-23). On pilot TAIL WHEEL panel, set UNLOCK/LOCK switch to UNLOCK. Does lock actuator locking pin disengage when using hydraulic power? YES Go to step 6 NO Refer to TM 1-1520-238-T-5 to troubleshoot utility hydraulic system. 5. Set UNLOCK/LOCK switch to LOCK. Does lock actuator locking pin engage when using hydraulic power? YES Go to paragraph 3–11. NO Replace tail wheel lock actuator TM 55-1520-238-23). 6. Visually inspect tail wheel lock actuator locking pin. Is lock actuator locking pin sheared or bent? YES Replace tail wheel lock actuator locking pin TM 55-1520-238-23). NO Go to step 7. 7. Check stop adjustment of tail wheel lock release handle TM 55-1520-238-23). Is handle stop adjusted properly? YES Remove tail wheel lock actuator and inspect. Repair as necessary TM 55-1520-238-23). NO Go to step 8. 8. Adjust stop TM 55-1520-238-23). Does lock actuator locking pin completely disengage? YES Go to step 9. NO Remove and repair tail wheel lock actuator TM 55-1520-238-23).