3–11. TAIL LANDING GEAR – MAINTENANCE OPERATIONAL CHECK

TM 1-1520-238-T-4 3–26 3–11. TAIL LANDING GEAR – MAINTENANCE OPERATIONAL CHECK 3–11 Tools: Nomenclature Part Number Tool Kit, Aircraft SC518099CLA01 Mechanic’s Jack, Hydraulic Axle, MIL-J-26013 5-Ton Personnel Required: 67R Attack Helicopter Repairer References: TM 1-1520-238-T-5 TM 1-1520-238-23 Equipment Conditions: Ref Condition TM 1-1520-238-23 Helicopter safed Paragraph 1–17 Maintenance headset connected NOTE · Refer to pilot station (fig. 3–20) for cockpit configuration and equipment. · If referenced out of one paragraph or volume and into another for additional troubleshooting, upon completion of the task, return to the maintenance operational check for the original paragraph or volume. 1. Perform inspection of TLG (TM 1-1520-238-23). 2. Raise TLG at jack pad (TM 1-1520-238-23). 3. Remove safety pin from tail wheel lock actuator (TM 1-1520-238-23). 4. Complete the maintenance operational check as follows: Task Result a. Use handle (fig. 3–20) to unlock tail wheel locking pin. If tail wheel locking pin is binding or does not disengage from locking plate, go to paragraph 3–18. b. Move tail wheel to either side of helicopter centerline and release. If tail wheel does not return to centerline, go to paragraph 3–19. c. Perform external power application electrical and utility hydraulic (TM 1-1520-238-23). d. On pilot TAIL WHEEL panel (fig. 3–20), set UNLOCK/LOCK switch to LOCK. Check that tail wheel is locked. If tail wheel does not lock, refer to TM 1-1520-238-T-5 to troubleshoot utility hydraulic system.