TM 5-5420-278-24&P0030 000030 00-4LOWER LOCK-DRIVE MAINTENANCE (Contd)ASSEMBLYNOTEApply a light coat of grease to all pins and threads of jackscrewprior to assembly.1.Install connecting pin (10) on yoke (6).2.Install connecting link (12) on connecting pin (10) with pin (11) and spring pin (9).3.Install lube fitting (25) on bellcrank lever (8).4.Connect connecting link (12) to bellcrank lever (8) with pin (23) and spring pin (24).5.Install bellcrank lever (8) on yoke (6) with shims (7), pin (27), and link (12) aligned with slot onbellcrank lever (8).6.Install spring pin (26) through yoke (6) and pin (27).7.Install trunnion nut (22), washer (21), and trunnion nut (13) on jackscrew (17).8.Adjust trunnion nut (22) and trunnion nut (13) to fit mounting holes in bellcrank lever (8) and yokebrackets (28).9.Position jackscrew (17) on yoke (6) and install trunnion nut (13) on bellcrank lever (8) with leverretainer (14), four new lockwashers (15), and screws (16).10.Install trunnion nut (22) on yoke brackets (28) with trunnion retainer (18), four new lockwashers(20), and screws (19).INSTALLATION1.Place pump selector lever in UP position, and extend cylinder rod end (31) until pin (4) can be installed.NOTEAssistant will help with step 2.2.Lift and install yoke (6) on inner ponton brackets (33) and (34) with two pins (32), washers (2), andnew cotter pins (1).3.Connect yoke (6) on cylinder rod end (31) with pin (4), two washers (5), and new cotter pins (3).4.Install ramp bay on transporter (TM 5-5420-278-10).
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