UNDERCARRIAGE / Travel Device IMPORTANT: The small diameter side of shaft (1) is matched with the inner race on needle bearing (10). Do not damage the inner race. 9. Lightly tap and install shaft (1) into housing (7) by using a plastic hammer. 10. Install retaining ring (2) to housing (7). Secure shaft (1) to housing (7). CAUTION: Housing weight: 87 kg (190 lb) 15. Place housing (7) with the brake valve (21) mounting surface facing upward. 16. Install plates (28) (4 used) and friction plates (27) (4 used) to housing (7) one by one. Install friction plate (27) first. 17. Apply grease to O-rings (24, 26). Install O-rings (24, 26) to brake piston (25). 15.
Tap and install brake piston (25) into housing (7) by using a plastic hammer evenly. NOTE: If the open part of retaining ring (2) is located at the lowest bottom of housing (7), retaining ring (2) can be removed and installed easily. 11. Apply grease to the ball (19) hole on swash plate (18). Align the positions of balls (19) (2 used) and install swash plate (18) to housing (7). NOTE: As O-ring is positioned around brake piston (25), brake piston (25) cannot be fully inserted. When installing brake piston (21), tighten brake piston (21) with socket bolt (20). IMPORTANT: Check the direction to install disc spring (23). 19.
Place disc spring (23) on brake piston (25) with the inner diameter facing to brake piston (25). 20. Install O-rings (6) (2 used) to the brake valve (21) mating surface of housing (7). Install O-ring (22) to brake valve (21). 21. Add hydraulic oil into housing (7) until plate (28) is submerged. IMPORTANT: Check the direction to install knock pin (11). 22. Install knock pin (11) to brake valve (21). Insert the large diameter side of knock pin (11) into the pin hole on brake valve (21). CAUTION: Housing (7) weight: 87 kg (190 lb) 12. Place housing (7) horizontally with the brake releasing oil passage facing downward. NOTE:
If the brake releasing oil passage faces upward, swash plate (18) may come off. IMPORTANT: Face the chamfered side of retainer (16) to the bushing (15) side. 13. Install springs (14) (6 used), bushing (15), retainer (16) and plungers (17) (9 used) to rotor (13) in this order. 16 Chamfered Side W178-02-11-225 14. Install the rotor (13) assembly to housing (7). W3-2-25 15