325F Excavator Machine Systems Drift Reduction Valve (Boom) - Assemble Caterpillar

Assembly Procedure

Show/hide table

Illustration 1	g02241176

1. Install the O-ring seals and plugs (36). Tighten plugs (36) to a torque of 10 ± 1 N·m (89 ± 9 lb in).
   Show/hide table

   Illustration 2	g02241175

   Show/hide table

   Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

   Note: Lubricate the O-ring seals and the backup rings with lubricant that is being sealed.

2. Install O-ring seal (35) onto body (34).

3. Install O-ring seal (31) and backup rings (32) onto valve (30).

4. Install O-ring seal (24), backup rings (25), and O-ring seal (26) onto body (23).

5. Install O-ring seal (20) onto screw (19).

6. Install valve (33), valve (30), plunger (29), spring (28), spring (27), body (23), plunger (22), spring (21), screw (19), and nut (18) into body (34). Tighten body (23) to a torque of 59 ± 6 N·m (44 ± 4 lb ft). Tighten nut (18) to a torque of 20 ± 2 N·m (177 ± 18 lb in).
   Show/hide table

   Illustration 3	g02241174

   Show/hide table

   Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

7. Install backup ring (14) and O-ring seal (15) onto cover (13).

8. Install valve (17), spring (16), cover (13), and bolts (12). Tighten bolts (12) to a torque of 55 ± 10 N·m (41 ± 7 lb ft).
   Show/hide table

   Illustration 4	g02241173

   Show/hide table

   Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

9. Install piston (4), O-ring seal (3), cover (2), and bolts (1). Tighten bolts (1) to a torque of 28 ± 7 N·m (21 ± 5 lb ft).

10. Install spool assembly (5), retainer (6), spring (7), O-ring seal (8), cover (9), and bolts (10). Tighten bolts (10) to a torque of 28 ± 7 N·m (21 ± 5 lb ft).

End By:

1. Install the drift reduction valve (boom).