TM10-3930-660-34 16-18.  BOOK HOIST CYLINDERS - REPAIR (Cont’d) n. Remove needle valve (22). o. Use snap ring pliers to remove one snap ring (23) from cylinder tube (10) and rod (8). p. Press out one bushing (24) from cylinder tube (10) and rod (8). Remove one snap ring (23) from each bushing (24). CLEANING See Cleaning Instructions, para.  2-10. INSPECTION See Inspection Instructions, para.  2-11. ASSEMBLY NOTE Wipe all sealing surfaces on cylinder clean and dry.  Apply film of clean hydraulic oil to all seals as they are installed. 1. ASSEMBLE CYLINDER PARTS (1-24). a. Install needle valve (22). b. Press one bushing (24) in cylinder tube (10) and rod (8). c. Install two snap rings (23) on each bushing (24). d. Install seal (20) and rod wiper (21) inside gland (9).  Ensure that seal (20) lip is positioned the same way as it was before disassembly. e. Install backup ring (19) and new O-rings (11 and 18) on outside diameter of gland (9). 16-115