AP-1000D and BG-260D Asphalt Pavers Machine Systems Caterpillar

Assembly Procedure

Note: Cleanliness is an important factor. Before assembly, thoroughly clean all parts in cleaning fluid. Allow the parts to air dry. Do not use wiping cloths or rags to dry parts. Lint may be deposited on the parts which may cause trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. Dirt and other contaminants can damage the precision component. Perform assembly procedures on a clean work surface. Keep components covered and protected at all times.

Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the components, if necessary.

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Illustration 1	g01227580

1. Install backup ring (30) and O-ring seal (31) on check valve (33).

2. Install O-ring seal (32) on check valve (33).

3. Install check valve (33) on valve body (19). Tighten check valve (33) to a torque of 31 ± 3 N·m (23 ± 2 lb ft).

4. Install backup ring (26) and O-ring seal (27) on check valve (29).

5. Install O-ring seal (28) on check valve (29).

6. Install check valve (29) in valve body (19). Tighten check valve (29) to a torque of 31 ± 3 N·m (23 ± 2 lb ft).

7. Install backup rings (20) and O-ring seal (25) on reducing valve (24).

8. Install backup ring (22) and O-ring seal (21) from reducing valve (24).

9. Install O-ring seal (23) on reducing valve (24).

10. Install reducing valve (24) in valve body (19). Tighten reducing valve (24) to a torque of 44 ± 3 N·m (32 ± 2 lb ft).

11. Install backup rings (18) and O-ring seal (17) on cartridge (6).

12. Install backup rings (14) on O-ring seals (13) on cartridge (6).

13. Install O-ring seal (10) on cartridge (6).

14. Install cartridge (6) in valve body (19). Tighten cartridge (6) to a torque of 71 ± 3 N·m (52 ± 2 lb ft).

15. Install coil (4) on cartridge (6).

16. Install O-ring seal (3) and nut (2) on cartridge (6).

17. Install backup rings (15) and O-ring seal (16) on control valve (1).

18. Install backup rings (11) and O-ring seal (12) on control valve (1).

19. Install backup rings (7) and O-ring seal (8) on control valve (1).

20. Install O-ring seal (5) on control valve (1).

21. Install control valve (1) in valve body (19). tighten control valve (1) to a torque of 60 ± 13 N·m (44 ± 10 lb ft).

End By:

1. Install the front wheel drive manifold. Refer to Disassembly and Assembly, "Front Wheel Drive Manifold - Install".