Usage:
Introduction
This Special Instruction provides the necessary procedure for installing a single-shank ripper (1FH) and mechanical or hydraulic pin puller on a D8N Tractor. Installation of a multi-shank ripper (1GH) is similar.
NOTE: Each section contains the related parts list.
After the assembly is complete, prepare the machine for service as shown in the machine's Operation & Maintenance Manual.
Do not perform any procedure, outlined in this publication, or order any parts until you read and understand the information contained within.
Reference: Service Manual, Parts Manual and Operation & Maintenance Manual.
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Do not attempt to assemble this machine until you have read and understand the assembly instructions. Improper procedures could result in injury or death. |
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| NOTICE |
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Do not let any dirt or foreign material get into the hydraulic system during assembly or maintenance operation. Keep the oil in the hydraulic system at the correct level to prevent pump cavitation. |
Weights
| NOTICE |
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When a hoist is used to lift any part or assembly, stand clear of the area. Always make sure the hoist has the correct capacity. Approximate weights of the components are shown in the chart which follows. |
Installation of Frame Assembly and Cylinder Groups
Necessary Parts
Installation Procedure
NOTE: Clean all surfaces where parts are to be installed, including removal of paint from mating surfaces.
1. Remove the draw bar and the transmission guard from the machine (if equipped). The transmission guard is not reused and may be discarded.
2. Install 20 studs (1) (10 each side) into the machine frame at the rear of the case assembly. Tighten studs (1) to a torque of 550 ± 50 N·m (410 ± 37 lb ft).
3. Install bracket assemblies (2) and (3) to studs (1) and case assembly with 20 washers (4) and 20 nuts (5). Tighten nuts (5) to a torque of 1800 ± 175 N·m (1320 ± 130 lb ft).
4. Install plate assembly (6) to bracket assemblies (2) and (3) with four washers (7) and four bolts (8).
5. Install plate assembly (9) to plate assembly (6) with four washers (7) and four bolts (8).
6. Install plate (10) to plate assembly (9) with four washers (11) and four bolts (12).
7. Install eight seals (13) to frame assembly (14) (Section C-C) (with the lips to the outside).
8. Install frame assembly (14) to bracket assemblies (2) and (3) with eight washers (15) (see note below), two pin assemblies (16), two plates (17), and four bolts (18) (Section C-C).
NOTE: To eliminate side movement of frame assembly (14) during operation, use washers (15) evenly on both sides as required between bracket assemblies (2) and (3) and frame assembly (14).
9. Install two lift cylinder groups (19) to bracket assemblies (2) and (3) with two pin assemblies (20).
10. Install two brackets (21) to plate assembly (9) with eight washers (7), four bolts (22), and four nuts (23).
11. Assemble two dowels (24) to brackets (21). Assemble two washers (25) and two bolts (26) to pin assemblies (20).
12. Install four seals (27) (with the lips to the outside) in the rod ends of lift cylinder groups (19) (Section A-A).
13. Install lift cylinder groups (19) to frame assembly (14) with two pin assemblies (28), two plates (17), and four bolts (18) (Section A-A).
14. Install carriage assembly (30) to frame assembly (14) with eight washers (15) (see following note), two pin assemblies (31), two plates (17), and four bolts (18) (Section D-D).
NOTE: To eliminate side movement of frame assembly (14) during operation, use washers (15) evenly on both sides as required between carriage assembly (30) and frame assembly (14).
15. Install 12 seals (27) (with the lips to the outside) in the ends of tilt cylinder groups (32) (Section B-B and E-E).
16. Install tilt cylinder groups (32) to bracket assemblies (2) and (3) with two pins (33), two bolts (34) and two locknuts (35) (Section E-E).
17. Install tilt cylinder groups (32) to carriage assembly (30) with two pin assemblies (28), two plates (17), and four bolts (18) (Section B-B).
NOTE: Install the hydraulic pin puller (if equipped) before installing tooth group (36). (See Installation of Pin Puller in this Special Instruction).
18. Install tooth group (36) to carriage assembly (30) with pin (37) and two pin assemblies (38).
19. Lubricate fittings on the ripper with multipurpose-type grease (MPGM). Refer to the Operation and Maintenance Manual for maintenance intervals.
Installation of Hydraulic Lines
Necessary Parts
Installation Procedure
(A) Head end. (B) Rod end.
1. Connect hose assemblies (1) and (2) to tilt cylinders rod ends (B) with two seals (5), four flanges (7), eight washers (9), and eight bolts (10).
NOTE: The 90 degree stem is connected to the tilt cylinder.
2. Connect hose assemblies (1) and (2) to the ripper control valve with two seals (6), four flanges, eight washers, and eight bolts.
NOTE: The items not numbered are part of the ripper control valve.
3. Connect hose assemblies (3) and (4) to tilt cylinders head ends (A) with two seals (6), four flanges (8), eight washers (9), and eight bolts (10).
NOTE: The 60 degree stem is connected to the tilt cylinder.
4. Connect hose assemblies (3) and (4) to the ripper control valve with two seals (6), four flanges, eight washers, and eight bolts.
NOTE: The items not numbered are part of the ripper control valve.
5. Connect hose assemblies (11) and (12) to lift cylinders head ends (A) with two seals (5), four flanges (7), eight washers (9), and eight bolts (10).
6. Connect hose assemblies (11) and (12) to the ripper control valve with two seals (6), four flanges, eight washers, and eight bolts.
NOTE: The items not numbered are part of the ripper control valve.
7. Connect hose assemblies (13) to lift cylinders rod ends (B) with two seals (5), four flanges (7), eight washers (9), and eight bolts (10).
8. Connect hose assemblies (13) to the ripper control valve with two seals (6), four flanges, eight washers, and eight bolts.
NOTE: The items not numbered are part of the ripper control valve.
9. Cycle lift and tilt cylinders full stroke in both directions several times. Check all connections for leaks and make repairs if necessary.
10. Check hydraulic oil tank level. If necessary, add oil to maintain the level at the FULL mark on the sight gauge.
Installation of Pin Puller
Necessary Parts
Installation Procedure
1. Remove pin assemblies (A) and pin (B). These parts are not reused and may be discarded.
2. Install bracket assembly (1) to ripper group (C) with six washers (2), four bolts (3), and two bolts (4). Tighten bolts (3) and (4) to a torque of 240 ± 40 N·m (175 ± 30 lb ft).
3. Install pin (5) to ripper group (C).
4. Install lever (6) to bracket assembly (1) with pin (7), washer (8) and ring (9).
5. Connect lever (6) to pin (5) with two links (10), two pins (11), four washers (2), and four bolts (12). Tighten bolts (12) to a torque of 240 ± 40 N·m (175 ± 30 lb ft).
6. Install cylinder group (13) to bracket assembly (1) with pin (14), washer (16), and ring (17) and to lever (6) with pin (15), washer (16), and ring (17).
NOTE: Some or all of Steps 7 through 13 may have been previously installed, if so skip to Step 14.
7. Install plate assembly (18) to fuel tank bracket (D) with two washers (19) and two bolts (20).
8. Install valve group (21) to plate assembly (18) with four washers (22) and four bolts (23).
9. Assemble four elbows (25) to valve group (21) and case assembly (E) with four seals (24).
10. Connect hose assemblies (27) and (28) to elbows (25) at valve group (21) and case assembly (E) with four seals (26).
11. Assemble clip (29) to harness assembly (F).
(30) Switch assembly. (G) Cab control deck.
(H) #1-purple. (J) #2-green. (K) #3-white.
12. Install switch assembly (30) and film (31) to cab control deck (G). Attach wires (H), (J) and (K) to switch assembly (30).
13. Remove two plugs (32) and two seals (33). These parts are not reused and can be discarded.
(L) Head end. (M) Rod end.
14. Install bracket (34) to cylinder (13) with two washers (35) and two bolts (36).
15. Install two elbows (38) to cylinder group (13) with two seals (37).
16. Install two connectors (39) to valve group (21) with two seals (37).
17. Connect two hose assemblies (41) to cylinder group (13) with two seals (40).
18. Connect the other end of hose assemblies (41) to connectors (39) at valve group (21) with two seals (42).
19. Assemble two grommets (43), two clips each (44) and (45) to hose assemblies (41) at bracket (34) with two washers (35) and two bolts (36).
20. Assemble three grommets (46), three clips each (47) and (48) to hose assemblies (41) at ripper frame (N) and bracket (P) with six washers (35) and six bolts (36).
21. Assemble three straps (49) as needed to hose assemblies (41).
22. Cycle pin puller cylinder and lift, tilt cylinders full stroke in both directions several times. Check all connections for leaks and make repairs if necessary.
23. Check hydraulic oil tank level. If necessary, add oil to maintain the level at the FULL mark on the sight gauge.