Bulldozer Control Valve - Assemble
Assembly Procedure
- Clean all of the parts. Inspect the parts for wear and for damage. Replace damaged parts or worn parts, as needed. Put clean oil on all of the seals.
- Assemble manifold (7) in the following manner:
- Install spool (84), spring (85), and dowel (86) in the manifold.
- Install plug (83) in manifold (7). Tighten the plug to a torque of 70 ± 7 N·m (52 ± 5 lb ft).
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NOTICE |
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Do not mix any of the components between the valve groups. Keep each valve group and the components for the valve separate from the other valves. |
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Illustration 1 | g00631261 |
- Assemble lift control valve (8) in the following manner:
- If the seals were removed, install new seals in each end of valve body (58) .
- Install O-Ring seals on plug (82) and install the plug in valve body (58). Tighten the plug to a torque of 70 ± 7 N·m (52 ± 5 lb ft).
- Install the O-Ring seals on valve (81) and install the valve in valve body (58). Tighten valve (81) to a torque of 14 ± 2 N·m (124 ± 18 lb in).
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- Install the O-Ring seals on seat (79). Put ball (80) in position in the valve body and install seat (79). Tighten the seat to a torque of 14 ± 2 N·m (124 ± 18 lb in).
- Put retainer (74), spacer (76), spring (75), and retainer (77) in position on spool (73) and install shaft (78). Tighten shaft (78) to a torque of 8 ± 1.5 N·m (71 ± 13 lb in).
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- Install spool assembly (72) in valve body (58) .
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- Position O-Ring seal (64) and detent housing (65) on valve body (58) .
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- Install spring (67), ball (68), and six balls (69). Depress ball (68) and install detent piston (66) .
- Grease balls (69), ball (68), and detent piston (66). Tighten bolts (71) to a torque of 11 ± 2 N·m (97 ± 18 lb in).
- Position filter (63), guard (61), and retainer (62) on valve body (58). Install bolts (60) and tighten to a torque of 5.5 ± 1.5 N·m (49 ± 13 lb in).
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- Install the O-Ring seals and the backup ring on relief valve (59). Install relief valve (59) on valve body (58). Tighten the relief valve to a torque of 70 ± 7 N·m (52 ± 5 lb ft).
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- Install the O-Ring seal on plug (54). Put spring (57), spring (56), and valve (55) in position on valve body (58). Tighten the plug to a torque of 70 ± 7 N·m (52 ± 5 lb ft).
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Illustration 3 | g00622236 |
- Assemble valve (6) in the following manner.
- If the seals were removed, install new seals in each end of valve body (37) .
- Put the O-Ring seals in position on valve (53) and install the valve in valve body (37). Tighten the valve to a torque of 14 ± 2 N·m (124 ± 18 lb in).
- Install the O-Ring seal on seat (51). Put ball (52) in position in the valve body and install seat (51). Tighten the seat to a torque of 11 ± 2 N·m (97 ± 18 lb in).
- Put retainer (49), spring (48), retainer (47), and spacer (46) in position of spool (50) and install bolt (45). Tighten the bolt to a torque of 11 ± 2 N·m (97 ± 18 lb in).
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- Install spool assembly (42) in valve body (37). Put housing (43) in position on the valve body and install bolts (44). Tighten bolts (38) to a torque of 11 ± 2 N·m (97 ± 18 lb in).
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- Put filter (41), guard (39), and retainer (40) in position of valve body (37) and install bolts (38). Tighten bolts (38) to a torque of 5.5 ± 1.5 N·m (49 ± 13 lb in).
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- Install O-Ring (33) on plug (32). Put spring (35), spring (36), and valve (34) in position on valve body (37) and install plug (32). Tighten the plug to a torque of 70 ± 7 N·m (52 ± 5 lb ft).
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Illustration 11 | g00622222 |
- Assemble control valve (5) in the following manner.
- If the seals were removed, install new seals in both ends of valve body (14) .
- Install O-Ring seals and the backup ring on relief valves (31). Install the relief valves in valve body (14). Tighten the relief valves to a torque of 70 ± 7 N·m (52 ± 5 lb ft).
- Put the O-Ring seals in position on valve (30) and install the valve in valve body (14). Tighten the valve to a torque of 14 ± 2 N·m (124± 18 lb in).
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- Install the O-Ring seal on seat (28). Put ball (29) in position on valve body (14) and install seat (28). Tighten the seat to a torque of 14 ± 2 N·m (124 ± 18 lb in).
- Put retainer (26), spring (25), retainer (24), and spacer (23) in position on spool (27). Compress spring (25) and install bolt (22). Tighten the bolt to a torque of 11 ± 2 N·m (97 ± 18 lb in).
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- Install spool assembly (21) in valve body (14). Put housing (20) in position on the valve body and install bolts (19). Tighten the bolts to a torque of 11 ± 2 N·m (97 ± 18 lb in).
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- Put filter (18), guard (16), and retainer (17) in position on valve body (14) and install bolts (15). Tighten bolts (15) to a torque of 5.5 ± 1.5 N·m (49 ± 13 lb in).
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- Install the O-Ring seal on plug (10). Put spring (13), spring (14), and valve (11) in position in valve body (14). Tighten the plug to a torque of 70 ± 7 N·m (52 ± 5 lb ft).
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- Install studs (3) in manifold (6) .
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- Install O-Ring seals (4) in the manifold and in valves (5), (6), and (8) .
- Install valves (5), (6), and (8), and shims (9) on studs (3) .
Note: Be sure that shims (9) are in position between the manifold and all of the valves.
- Put cover (1) in position on the studs and install nuts (2). Tighten the nuts to a torque of 27 ± 5 N·m (20 ± 4 lb ft).
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Illustration 16 | g00622216 |
End By: Install the bulldozer control valve.
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