TM 5-5420-278-24&P0035 000035 00-4PUMP MAINTENANCE (Contd)DISASSEMBLYNOTEPump lever, control lever, and fill plug with dipstick can beremoved and disassembled without removing pump from rampbay.Disassembly and assembly of pumps are performed the same way.Only one pump is shown.A. Pump Lever1.Remove cotter pin (1), washer (2), and pin (4) from pump lever (3) and piston rod (32). Discard cotter pin (1).2.Remove nut (6), washer (5), screw (38), and pump lever (3) from piston rod (33) and between two straps (11).3.Remove cotter pin (8), nut (7), screw (37), washer (36), and spacer (39) from between two straps (11).Discard cotter pin (8).4.Remove nut (10), washer (9), screw (35), and two straps (11) from lever support (34).5.Remove four screws (12), lockwashers (13), and lever support (34) from pump housing (32). Discard lockwashers (13).B. Control Lever1.Remove knob (21) from control lever (22).2.Remove spring pin (20), control lever (22), and spring (23) from control block (24).NOTEPerform step 3 only if replacing damaged control block.3.Remove spring pin (19) and control block (24) from spool valve shaft (not shown).C. Instruction Plate, Mounting Plate, and Fill Plug1.Remove two screws (15), lockwashers (16), and mounting plate (18) from pump housing (32).Discard lockwashers (16). 2.If replacement is necessary, remove four drive screws (14) and instruction plate (17). Discard drive screws (14).3.Remove two screws (29), washers (30), mounting plate (28), and spacer (27) from pump housing (32).4.Remove fill plug with dipstick (25) and gasket (26) from pump reservoir (31). Discard O-ring (26) if damaged.
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