hitachi — DISASSEMBLE SWING MOTOR

UPPERSTRUCTURE / Swing Device IMPORTANT: Do not damage the sliding surfaces of rotor (11) and plunger (8). 9. Set casing (3) in horizontal and remove rotor (11) from shaft (6). Remove plungers (8) (9 used), plate (9) and retainer (10) from casing (3). 10. Remove plates (13) (4 used) and friction plates (12) (3 used) from casing (3). IMPORTANT: Do not damage the sliding surface of shoe plate (7). 11. Remove shoe plate (7) from casing (3). IMPORTANT: When removing shaft (6), the spline damages oil seal (4). Wind the tape onto the spline of shaft (6) before removing shaft (6). 12. Tap and remove shaft (6) from casing (3) by using a plastic hammer lightly. 13.

Remove oil seal (4) from casing (3). 14. Remove the outer race of roller bearing (5) from casing (3) by using a bar and plastic hammer. 15. Remove the inner race of roller bearing (5) from shaft (6) by using a press. 16. Remove bearing (19) from valve casing (25) by using a bearing puller. W2-6-23