UPPERSTRUCTURE / Pump Device Disassemble Regulator (Fan Pump) 1. Remove socket bolts (36) (2 used) and (37) (2 used). Remove housing (48) from the pump. IMPORTANT: Do not remove pin (49) from adjusting plug (51). Put the mark on adjusting plugs (51, 54) in order not to confuse. 8. Remove retaining ring (53) from housing (48). Remove adjusting plugs (51, 54) by using the bolt (M6). IMPORTANT: Do not remove pin (20) from lever (25). 9. Remove lever (25) and pilot piston (27) from housing (48). 10. Remove pin (23) in feedback lever (22) through the mounting hole on adjusting plug (51). Remove feedback lever (22), sleeve (18) and spool (19) from housing (48). : 6 mm IMPORTANT:
Do not remove adjusting screws (39, 40, 46) and nuts (41) (2 used), (44). If adjusting screws (39, 40, 46) and nuts (41) (2 used), (44) are removed, the pump characteristics are changed. 2. Remove socket bolts (32) (4 used). Remove cover (33) from housing (48). : 5 mm 3. Remove socket bolts (63) (4 used). Remove cover (62) from housing (48). : 5 mm 4. Remove socket bolts (66) (2 used). Remove solenoid valve (65) from cover (62). 5. Remove pin (1), sleeves (2, 5) and compensating piston (6) from housing (48). 6. Remove retaining ring (13), spring seat (14) and springs (15, 16) from housing (48). 7. Remove socket bolts (32) (4 used).
Remove cover (43), adjusting disc (11), springs (9, 10), spring seat (8), adjusting disc (30), spring (29) and spring seat (28) from housing (48). 4 mm IMPORTANT: Do not remove pins (20, 49) from lever (21). 11. Remove lever (21) and compensating rod (7) from housing (48). : 5 mm W2-4-63