Usage:
NOTE: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.
1. Use Tooling (C) to install bearings (2) and (16) in the cylinder and rod assemblies. Make sure that the bearings are centered in the bores.
2. Apply 7M-7456 Compound to the bores for lip seals (1) and (15). Use Tooling (D) to install lip seals (1) and (15) in each side of the cylinder and rod assemblies. Make sure that the sealing lips are facing outward.
3. Install ring (3) and retaining ring (4) in cylinder body (10).
4. Apply 155-0695 Thread Lock Compound to the threads of bolts (5) prior to assembly. Install six bolts (5) and the washers in cylinder body (10) and tighten the bolts to a torque of 100 ± 15 N·m (75 ± 10 lb ft).
5. Install wear ring (17), seal assembly (21), U-cup seal (22) and lip seal (23) in head (13). Make sure that the sealing lip of seal (23) is facing the rod end of the cylinder. Apply a thin coat of clean hydraulic oil on the seals and on the wear ring.
6. Install four bolts (24) and the washers in head (13).
7. Install seal (20), O-ring seal (18) and backup ring (19) on head (13). Apply a thin coat of clean hydraulic oil on the seals.
8. Put Tooling (E) in position on the rod assembly. Install head (13) on rod assembly (11). Remove Tooling (E).
9. Install wear ring (7) and seal assembly (8) on piston (9). Apply a thin coat of clean hydraulic oil on the seal assembly and on the wear ring.
10. Install piston (9) on rod assembly (11).
11. Lubricate the threaded end of rod assembly (11) and install nut (6). Use Tooling (B) to tighten nut (6) to a torque of 8000 ± 800 N·m (5900 ± 590 lb ft).
12. Install cylinder body (10) on rod assembly (11). Install eight bolts (14) and the washers that hold head (13) to cylinder body (10). Tighten bolts (14) when the rod fully is extended. Tighten the bolts to a torque of 1800 ± 200 N·m (1325 ± 150 lb ft).
13. Remove the tilt cylinder from Tooling (A). The weight of the tilt cylinder is 430 kg (948 lb).
End By:
a. Install the tilt cylinder. Refer to Disassembly and Assembly, "Tilt Cylinder - Install" for the machine that is being serviced.