143H and 163H Motor Graders Machine Systems Caterpillar

Installation Procedure

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.

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Illustration 1	g01013647

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Illustration 2	g01013181

1. Install Tooling (A) and support Tooling (A) with a suitable lifting device. Install bearings (26) .

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Illustration 3	g01013179

2. Use Tooling (C) and install lip seals (25) .

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Illustration 4	g01013640

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Illustration 5	g01013211

3. Use Tooling (B) and install bearing (24) .

4. Install seals (22) and washers (23). Use two people to install yoke (21) on blade lift arm (10). The weight of yoke (21) is approximately 23 kg (50 lb).

5. Install shims (20). Use shims (20) to obtain a maximum end play of 0.254 mm (0.0100 inch). Yoke (21) must rotate freely. Install seal (19) .

6. Install retainer (18) and bolts (17). Tighten bolts (17) to a torque of 129 ± 7 N·m (95 ± 5 lb ft).

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Illustration 6	g01013176

7. Install blade lift arm (10). The weight of blade lift arm is approximately 113 kg (250 lb).

8. Install pin (16) .

9. Install lock (15) and bolts (14) .

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Illustration 7	g01013175

10. Install pin (13) .

11. Install lock (12) and bolts (11). Use the washers in order to obtain a clearance of 3.7 mm (0.15 inch) between the centershift lock bar and the plate.

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Illustration 8	g01013174

12. Attach a suitable lifting device to centershift cylinder (6) .

13. Use the machine to position centershift cylinder (6).

14. Install cap (8) and bolts (7) .

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Illustration 9	g01013173

15. Attach a suitable lifting device to blade lift cylinder (2). The weight of blade lift cylinder (2) is approximately 91 kg (200 lb).

16. Position blade lift cylinder (2) on front frame assembly (5) .

17. Install caps (4) and bolts (3) .

18. Install plate (1), if equipped.

End By: If equipped, install the blade accumulators. Refer to Disassembly and Assembly, "Accumulator (Blade Cushion) - Remove and Install".