UNDERCARRIAGE / Travel Device Disassemble Brake Valve IMPORTANT: Do not disassemble relief valves (5) (2 used). Relief valve (5) should be replaced as assembly. Attach an identification tag to each relief valve (5) in order to install to their original position. In addition, do not rotate set screw (34). The setting pressure can change. 5. Remove relief valves (5) (2 used) from valve housing (46). CAUTION: The valve housing (46) assembly weight: 39 kg (90 lb) 1. Secure the valve housing (46) assembly on a firm workbench. 2. Remove plugs (6, 15), O-rings (7, 14) and spring (8) from valve housing (46). : 10 mm IMPORTANT: Remove valve assembly (13) while rotating.
If a little resistance is felt while removing, do not try to remove it by force, return to original position and retry. In addition, do not disassemble valve assembly (13). In case re- placement should be carried out to any parts of it, replace it with the valve housing (46) assembly in- cluding spool assembly (50), valve assembly (13), orifices (11, 49, 51) and the plug. 3. Push valve assembly (13) lightly. Rotate and re- move valve assembly (13) by hand from valve housing (46). 4. Remove plugs (1) (2 used), O-rings (2) (2 used), springs (3) (2 used) and check valves (4) (2 used) from valve housing (46). : 36 mm 6. Push cap (36) and remove socket bolts (35) (8 used).
Remove caps (36) (2 used) from valve housing (46). NOTE: In case cap (36) cannot be removed, tap cap (36) by using a plastic hammer. While tapping, loosened socket bolt (35) should be still on cap (36). 7. Remove spring seats (38) (2 used), springs (39) (2 used) and spring seats (40) (2 used) from valve housing (46). IMPORTANT: Remove spool assembly (50) while rotating. In case a little resistance is felt while removing, do not try to remove it by force, return to original position and retry. 8. Push spool assembly (50) lightly. Rotate and re- move spool assembly (50) by hand from valve housing (46). 9. Clamp spool assembly (50) in a vise by using chip of wood inserted at both side. 10.
Remove plugs (41) (2 used) from spool (45). Remove springs (43) (2 used) and check valves (44) (2 used) from spool (45). : 10 mm : 14 mm W3-2-45