TM5-6115-593-34 NAVFAC P-8-631-34 TO-35C2-3-463-2 (19) Hold spring seat (85) with pilot valve wrench and remove nut (84). (20) Remove spring seat (85) while holding pilot valve plunger (121) stationary. (21) Remove thrust bearing (86). (22) Remove retaining ring (87) from bushing (120) and lift flyweight assembly (87 through 91) out of case. (23) Disassembly right (89) and ball arm (90) from ball head (91). (24) Remove needle valve and packing (92 and 93). (25) Remove screw and packing (94 and 95). (26) Remove ring (96) and pull out buffer cap (97) with smooth jaw pliers.  Remove packing (98). (27) Remove retaining ring (99) and buffer system (100 through 103).  Thread a base bolt into plug (100) to ease removal. (28) Turn actuator over on its top with base up and remove drive coupling (104). (29) Remove screws and lockwashers (105 and 106). Place two screwdrivers into the slots provided on each side of the base.  Carefully work base off by twisting and prying to free taper pins and remove base.  When separating the base from case be careful of parts falling out and becoming damaged. (30) Remove oil seal ring (118), packing (119), plug (111), and packing (112). (31) Remove relief valve parts (113 through 116). (32)  Remove rotating bushing (120), pilot valve plunger (121), compensation bushing (122) and retaining ring (123) from case. (33) Remove idler gear (124). (34) Remove bushing (126, pilot valve plunger (127) and retaining ring (128). (35) Disengage magnet spring (129) from pilot valve plunger (127) and remove compensating bushing (130). (36) Remove cotter pin (27), pin (131) and push power piston (133) out of case from top. (37) Remove pushrod pin (134). (38) Remove nut (135) and pivot washer (136), and push linkage return piston (137) out of case from top.  Count number of turns when removing the nut for reassembly. (39) Lift free end of floating lever (142) and turn it to a position where pin (138) can be driven out. (40) Remove floating lever (142), terminal lever (146), terminal lever link (147) and pivot link (148). (41) Remove snap ring (149). (42) Remove power piston (152) through top of case. (43) Pull sleeve (153) out of case using a hook-shaped tool. b.Ball Head Repair.  Use an arbor press and tool T93163 to disassemble the ball head.  See figure 12-6.  Press the drive cup and ball head out of the cover. Disassemble the drive cup, ball head, bearing and flyweights. Note which side of the bearing is "up" in the drive cup and reassemble it with the same side up. 12-6.  OVERHAUL.  Check all parts for wear, cracks, nicks, corrosion, or other damage.  Check threads and serrations for tooth damage.  Check the electrical connector for cracks or damage and wiring connections for breaks.  Check all bearings for wear and damage. Replace flyweights if worn areas on the toes are greater than 3/64 inch wide. 12-9