TM 5-5420-278-24&P0030 000030 00-2LOWER LOCK-DRIVE MAINTENANCE (Contd)NOTEBoth yokes are removed and installed the same way. Both yokesare shown. Right yoke contains connecting pin, trunnions, andlever, and is disassembled and assembled the same way.REMOVAL1.Place pump selector valve in UP position, and extend cylinder rod end (31) until pin (4) is clear tobe removed.2.Support cylinder rod end (31) and remove two cotter pins (3), washers (5), and pin (4) from yoke (6)and cylinder rod end (31). Discard cotter pins (3).NOTEAssistant will help with steps 3 and 4.3.Support yoke (6), and remove two cotter pins (1), washers (2), and pins (32) from inner pontonbrackets (33) and (34) and yoke brackets (29) and (30). Discard cotter pins (1).4.Lift yoke (6) from brackets (34) and (33).DISASSEMBLY1.Remove four screws (19), lockwashers (20), and retainer (18) from trunnion nut (22) and yokebrackets (28). Discard lockwashers (20).2.Remove four screws (16), lockwashers (15), and lever retainer (14) from trunnion nut (13) andbellcrank lever (8). Discard lockwashers (15).3.Remove jackscrew (17), washer (21), and trunnion nuts (22) and (13) from yoke brackets (28) andbellcrank lever (8).4.Remove washer (21), trunnion nut (22), and trunnion nut (13) from jackscrew (17).NOTENote location and quantity of shims for installation.5.Remove spring pin (26) from yoke (6) and pin (27).6.Remove spring pin (24), pin (23), and connecting link (12) from bellcrank lever (8)7.Remove pin (27), bellcrank lever (8), and shims (7) from yoke (6).8.Remove lube fitting (25) from bellcrank lever (8).9.Remove spring pin (9), pin (11), and link (12) from connecting pin (10).10.Remove connecting pin (10) from yoke (6).
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