Usage:
1. Move the centershift to the farthest position to the right.
2. Remove the bolts and washers (8). Remove the cap (6) and two inserts (7) and (9) from the centershift cylinder (3).
3. Remove the bolts, caps and inserts from the blade lift cylinders (1) and (5).
4. Retract the cylinder rods into cylinders (1), (3) and (5).
5. Disconnect oil lines (2) from centershift cylinder (3). Secure centershift cylinder (3) to the blade lift arm.
6. Install tooling (A) under the front of circle (11). Put hydraulic jack (12) under the rear of circle (11) as shown. Fasten a hoist to circle drawbar assembly (10).
7. Identify four oil lines (19) and disconnect from swivel group (13). Remove cotter pin and pin (17) from hose guide assembly (14).
8. Loosen nut and set screw (15). Remove bolts (21) and remove shoes (18), shims (16), strips (20) and (22). Note: Keep the shims (16) with their respective shoes (18).
9. Identify and disconnect oil lines (23) and (24).
10. Remove four bolts and washers (28).
11. Lift the circle drawbar (10) enough to move it away from the front frame and from engagement in circle (11). Remove the circle drawbar assembly (10) from the machine. The approximate weight of the standard drawbars are: 12G, 120G and 130G 540 Kg (1200 lbs); 140G, 770 Kg (1700 lbs.).
12. Remove two bolts (29). Remove adapter (27) and shims (26) from shaft (31).
13. Remove five bolts (30) from shaft (31). Remove ball (32) and cap (25) from shaft (31).
NOTE: The following steps are for installation of the circle drawbar.
14. Install adapter (25) and ball (32) on shaft (31). Install five bolts (30). NOTE: The mating surfaces of ball (32) and shaft (31) must be free of paint and lubricant. Tighten bolts (30) to a torque of 520 ± 20 N·m (380 ± 15 lb.ft.).
15. Install shims (26), adapter (27) and two bolts (29). NOTE: Use shims (26) as required to obtain 0.6 ± 0.2 mm (.024 ± .008 in.) end play at face (B).
16. Fasten a hoist to circle drawbar (10). Put circle drawbar (10) in position in the front frame and in engagement in the circle.
17. Install four bolts and washers (28), and tighten to a torque of 700 ± 27 N·m (520 ± 20 lb.ft.).
18. Connect oil lines (23) and (24).
19. Connect four oil lines (19) to swivel group (13). Position hose guide assembly and install pin and cotter pin (17).
20. Install strips (22) and (20), shims (16), shoes (18) and bolts (21) on circle drawbar (10). Do not tighten bolts (21). NOTE: Use shims (16) as required to obtain a maximum dimension "C" of 0.5 mm (.020 in.) clearance at the smallest gap between each strip (22) and circle (11). Circle (11) must be able to rotate 360° without stalling the drive motor at 13800 kPa (2000 psi).
21. With circle (11) in contact with front shoes (18), adjust screws (15) on side and rear shoes to obtain a maximum clearance "D" of 0.8 mm (.03 in.).
22. Tighten the nuts on screws (15) to a torque of 200 ± 25 N·m (150 ± 18 lb.ft.).
23. Adjust the screws (15) on the front shoes (18) to obtain circle (11) to pinion (32) adjustment "E" for 12G, 130G, 140G 50 + 2.5 - 0.5 mm (1.97 + .10 - .02 in.).
24. On the 120G, adjust the screws (15) on the front shoes (18) to obtain clearance "F" between circle tooth (11) and drive pinion (32) of 4.3 + 2.5 - 0.5 mm (.17 ± .10 - .02 in.).
25. Tighten the nuts on screws (15) to a torque of 200 ± 25 N·m (150 ± 18 lb.ft.).
26. Connect oil lines (2) to the center shift cylinder (3).
27. Position insert (7) in cylinder end cap (4) and extend the centershift cylinder (3) onto the ballstud. Install insert (9) and cap (6) and bolts and washers (8). NOTE: Put 5P960 Multipurpose Grease on the inside surfaces of inserts (7) and (9) and on the ballstud.
28. Install the inserts, caps and bolts on the blade lift cylinders (1) and (5). NOTE: Put 5P960 Multipurpose Grease on the inside surfaces of the inserts and the ballstuds.
29. Fill the hydraulic tank with oil to its correct level. See the Operation and Maintenance Manual.