Installation of 10S (1RH) and 10U (1SH) Bulldozer{6051, 6053} Caterpillar

Introduction

The following instruction provides the necessary procedure for installing the lift cylinder group; the 10S and 10U Bulldozer blade equipped with single or dual tilt cylinders.

NOTE: Dual tilt cylinders installation is represented by a Type 1 (2YD1-2443) and Type 2 (2YD2444-Up, 3SK1-Up) set of instructions. Type 1 consists of bent tube assemblies on the tag link and Type 2 has straight tube assemblies. Routing of related hydraulic hoses are also effected as shown in assembly instructions.

See the related section for parts list.

After the assembly is complete, prepare the machine for service as shown in the 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 Book 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.

Weights

Shimming Procedure (Typical)

Typical Example

1. Remove all the shims from assembly (1).

2. Install assembly (1) and cap (2) on trunnion (3) without the shims. Tighten the cap, maintaining equal distance on both sides of the cap.

3. Insert as many shims as possible into space (A) and (B) between the cap and the assembly.

4. Add two additional shims to the total shims used.

5. Install half the shims at (A) and the other half at (B). Tighten the cap to the proper torque.

6. This should allow the assembly to move on the trunnion freely and within the specified tolerance.

Installation of Lift Cylinders

Necessary Parts

1. Tie the rod end of the cylinder to the cylinder base to prevent it from extending during installation (both cylinders).

2. Install lift cylinder (1) on the yoke with two caps and four bolts each cylinder.

NOTE: The items not numbered are shipped with the tractor.

3. Install 9W6379 Guard Assembly right side and 9W6380 Guard Assembly (4) left side to 7T9821 Brackets (3) with eight 9W4361 Mounts (5), sixteen 5P1075 Washers (6) and sixteen 6V8801 Nuts (7).

4. Install 9W1282 Lamp Group (8) to bracket (3) with one 2B8352 Washer (9) on each side of the bracket, a 8T4122 Washer (10) and a 6V8181 Nut (11). Install 5P8522 Grommet (12) in the guard assemblies (both sides).

5. Connect two 9P9255 Hose Assemblies (13) to the lift cylinder with two 4J0520 Seals (14), four 1P4577 Half-Flange (15), eight 5M2894 Washers (16), and eight 3B1915 Bolts (17) on both sides.

6. Install 9W6326 Tube (18) to the lift cylinder with two 5F7055 Clips (19), two 8T4223 Washers (20) and two 5P2228 Bolts (21) both sides. The upper clip (19) must be installed so that the tube will clear the light guard.

7. Connect the other end of the hose assemblies (13) to the radiator guard with 4J0520 Seals (14), four 1P4577 Flanges, eight 5M2894 Washers and eight 3B1915 Bolts as shown (both sides).

NOTE: The items not numbered are from the Lift Cylinder Lines Group and come with the tractor.

8. Insert 6T6112 Harness Assembly (22) thru the tube and connect it to the wire assembly coming out of the radiator guard. Install the connector lock (both sides.

9. Install 3T9699 Plate Assembly-RH (24) to the radiator guard with two 5C6565 Bolts (25) and two 8T4223 Washers (20) on the right side.

10. Install 3T9695 Plate Assembly-LH to the radiator guard with one 5C6565 Bolt and one 8T4223 Washer on the left side.

* A bolt and washer from the lift cylinder group is also used for fastening the right hand plate assembly to the radiator guard.

11. Install 7T9821 Bracket (3) to the lift cylinder with four 8T4223 Washers (20) and four 5C6565 Bolts (25) both sides.

12. Connect the orange wire from the harness assembly to the lamp assembly at location (A). Connect the black wire to ground on the guard assembly with 8T4896 Washer (27) and 6V8801 Nut (7) both sides.

13. Fasten the harness assembly to the radiator guard with 7K1181 Strap (28), both sides.

14. Remove the shipping bracket on the cylinder and install it in the up position. This will provide clearance for the tilt cylinder hoses (both sides).

Installation of Push Arm Trunnions

Necessary Parts

* 2-9J6072 Trunnion Assembly

* 28-7X0405 Bolt (1 X 2 3/4 in)

Installation Procedure

1. Remove shipping cover (1) from the roller frame (both sides).

2. Remove plug (3) and move plate (2) in towards the center of the tractor as far as possible. Replace the plug in the plate. This should allow adequate space for the trunnion installation (both sides).

3. Install guide pins in the track housing.

4. Start 9J6072 Trunnion (4) on the guide pins (both sides).

5. Fasten trunnion (4) with fourteen 7X0405 Bolts (5), on each side.

6. Tighten the bolts to a torque of 875 ± 100 N·m (640 ± 80 lb ft) both sides.

Bulldozer Assembly (With Single Tilt Cylinder)

Necessary Parts

Assembly Procedure

1. Raise and block the dozer blade in an upright position.

2. Install a 3G8034 Connector (1) using 3G8053 Pin (2), 6J7500 Retainer (3) and two 7X0379 Bolts (4) on both sides.

3. Install the push arm to the blade with a 3G8053 Pin (5), 6J7500 Retainer (6) and two 7X0379 Bolts (7) on each side.

4. Install 9T9202 Tilt Cylinder Group (8) to the blade with 7T4810 Pin (9), two 7T4809 Spacers (10) located on each side of the cylinder rod, a 9J2365 Retainer (11) and two 7X0379 Bolts (4).

5. Install tilt cylinder (8) to the right hand push arm with 9J6662 Pin (12), 9J2365 Retainer (13) and two 7X0379 Bolts (7).

6. Remove inlet and outlet cover from the tilt cylinder. Install 9W2893 Tube Assembly (14) to the front of the cylinder with 1P3703 Seal (15), four 8T4896 Washers (16) and four 4L6459 Bolts (17). Install 9W2894 Tube Assembly (18) to the rear of the cylinder with 1P3703 Seal (15), four 8T4896 Washer (16) and four 4L6459 Bolts (17).

7. Fasten 9W3215 Plate (19) to the tilt cylinder with two 8T4223 Washers (23) and two 8T8917 Bolts (22).

8. Clamp tube assembly (14) to 9W3215 Plate (19) with 7S3916 Clip (20), 7S3919 Clip (21), 8T8917 Bolt (22), 8T4223 Washer (23) and 6V8188 Nut (24). Clamp tube assembly (18) to plate (19) with 7X0325 Bolt (25), 1D5875 Spacer (26), 7S3916 Clip (20), 7S3919 Clip (21), 8T4223 Washer (23) and 6V8188 Nut (24).

9. Install 9J6063 Link Assembly (26) to the blade assembly with 9J6062 Cap (27), four 7X0396 Bolts (28) and four 7X0449 Nuts (29). Add 1U1524 Shims as necessary. Refer to the topic entitled Shimming Procedure in this Special Instruction for shimming instructions.

10. Insert two 3G9363 Hose Assemblies (30) into link assembly (26).

11. Fasten the hose assemblies to the under side of 1U1364 Plate Assembly (31) with two Seals 8T7235 (32), four 1P4576 Flanges (33), eight 8T4896 Washers (16) and eight 9B7237 Bolts (34) on the blade end of the link as shown.

12. Bolt plate assembly (31) to the link assembly with four 8T4223 Washers (23) and four 5C6565 Bolts (35).

13. Fasten the other ends of the hose assemblies to the under side of plate assembly (31) with two 8T7235 Seals, four 1P4576 Flanges, eight 8T4896 Washers and eight 9B7237 Bolts on the tractor end of the link assembly.

14. Bolt plate assembly (31) to the link assembly with four 8T4223 Washers (23) and four 5C6565 Bolts (35).

15. Connect 6Y6042 Hose Assemblies (36) to the link assembly with two 8T7235 Seals (32), four 1P4576 Flanges (33), eight 8T4896 Washers (16) and eight 9B7237 Bolts (34) as shown.

16. Install the other end of hose assemblies (36) to the tilt cylinder with two 8T7211 Seals (37), four 1P4577 Flanges (38), eight 8T4896 Washers (16) and eight 9B7237 Bolts (34).

17. Install 6Y6043 Guard Assembly (39) to the tilt cylinder with two 8C6913 Washers (40), two 8T9400 Bolts (41) on the top of the guard, two washers (40) and two 7X0381 Bolts (42) on the bottom of the guard.

18. Install 9W8751 Guard Assembly (43) to the blade side of the link assembly with six 8T4223 Washers (23) and six 5C6565 Bolts (35).

19. Install 7T7577 Brace Group (44) to the blade, with 7T4810 Pin (9), two 7T4809 Spacers (10), 9J2365 Retainer (11) and two 7X0379 Bolts (4).

20. Install brace group (44) to the left hand push arm with 9J6662 Pin (12), 9J2365 Retainer (13) and two 7X0379 Bolts (7).

21. Install 4T3797 Connector (45) to blade with 9W2939 Pin (46), 6J5986 Retainer (47) and two 8T8917 Bolts (48) both sides.

Installation of Bulldozer Assembly

1. Block the push arms to the height of the tractor trunnions

2. Remove the caps from the push arms.

3. Move the tractor into the push arms.

4. Fasten 7T4966 Cap (49) to the push arm assembly (50) with 8K5130 Bolts (51) and 2J3507 Nuts (52). Add 4T9707 Shims as necessary. Refer to the topic entitled Shimming Procedure in this Special Instruction for shimming instructions.

5. Fasten both lift cylinders to the blade with 6J5985 Pin (53), 6J5986 Retainer (47) and 8T8917 Bolt (48)

6. Install link assembly (26) to the tractor trunnion with 9J6062 Cap (27), 7X0396 Bolts (28) and 7X0449 Nuts (29). Add 1U1524 Shims as necessary. Refer to the topic entitled Shimming Procedure in this Special Instruction for shimming instructions.

7. Connect 9W2886 Hose Assembly (54) and 9W3219 Hose Assembly (55) with two 8T7235 Seals (32), four 1P4576 Flanges (33), eight 8T4896 Washers (16) and eight 9B7237 Bolts (34) to the link assembly closest to the tractor.

8. Remove the lower two covers from the block on the radiator guard. Connect hose assembly (54) and hose assembly (55) to the block on the left side of the radiator guard with two 8T7235 Seals (32), four 1P4576 Flanges, eight 8T4896 Washers and eight 9B7237 Bolts as shown.

* The items not numbered are part of the tilt cylinder lines group and come on the tractor.

9. Install 9W2318 Guard (56) to link assembly (19) with three 8T4223 Washer (23) and three 5C6565 Bolts (35).

Bulldozer Assembly (With Dual Tilt Cylinders)

Necessary Parts

Assembly Procedure (Applies to both Type 1 and Type 2)

1. Clamp 9W2881 Tube Assemblies-LH (3) to blocks (1) as shown with 4T3981 Clamps (5), 5S7379 Bolts (6) and 8T4896 Washers (7).

NOTE: The tube assemblies which has flanges on both sides are located to the right side of the dozer blade.

2. Connect 9W2883 Tube Assemblies-RH (4) to tube assemblies (3) with 1P5760 Flanges (8), 1P3703 Seals (9), 7X0288 Bolts (10) and 8T4896 Washers (7).

Clamp tube assemblies (4) to blocks (1) with 4T3981 Clamps (5), 5S7379 Bolts (6) and 8T4896 Washers (7).

3. Install 3G8034 Connector (11) to the blade using 3G8053 Pin (12), 6J7500 Retainer (13) and two 7X0379 Bolts (14) on both sides of the blade.

4. Install 7T7529 and 7T7544 Push Arm Assemblies (15) to the blade with 3G8053 Pin (16), 6J7500 Retainer (17) and 7X0379 Bolts (18).

5. Install 9T9203-RH and 9T9204-LH Cylinder Group (19) to the blade with 7T4810 Pin (20), two 7T4809 Spacers (21), 9J2365 Retainer (22) and 0T0690 Bolts (14).

NOTE: The spacers are located between the tilt cylinder and blade bracket. The spacers are chamfered on both sides so they can be installed either way.

6. Install 9T9203-RH and 9T9204-LH Cylinder Group (19) to the push arms with 9J6662 Pins (23), 9J2365 Retainers (24) and 7X0379 Bolts (18).

7. Connect 9W2894 Tube Assembly (25) to the head end of the cylinder on the right side with 1P3703 Seals (9), 8T4896 Washers (7) and 4L6459 Bolts (26).

Connect 9W2894 Tube Assembly (25) to the rod end of the cylinder on the left side with 1P3703 Seals (9), 8T4896 Washers (7) and 4L6459 Bolts (26).

8. Connect 9W2893 Tube Assembly (27) to the rod end of the cylinder on the right side with 1P3703 Seals (9), 8T4896 Washers (7) and 4L6459 Bolts (26).

Connect 9W2893 Tube Assembly (27) to the head end of the cylinder on the left side with 1P3703 Seals (9), 8T4896 Washers (7) and 4L6459 Bolts (26).

9. Fasten 9W3215 Plate (28) to the tilt cylinder with 8T8917 Bolts (29) and 8T4223 Washers (30) both sides.

10. Fasten tube assembly (25) to the plate with a 7S3916 Clip (31), 7S3919 Clip (32), 7X0325 Bolt (33), 1D5875 Spacer (34), 8T4223 Washer (30) and 6V8188 Nut (35) both sides.

11. Fasten tube assembly (27) to the plate with a 7S3916 Clip (31), 7S3919 Clip (32), 8T8917 Bolt (29), 8T4223 Washer (30) and 6V8188 Nut (35) both sides.

12. Install 9W2870 Link Assembly (36) to the blade (as shown) with 9J6062 Cap (37), 7X0396 Bolts (38) and 7X0449 Nuts (39). Add 1U1524 Shims as necessary. Refer to the topic entitled Shimming Procedure in this Special Instruction for shimming instructions.

Assembly Procedure (Type 1 only)

13. Locate 9W2892 Tube Assembly (40) with the bend in the tube nearest the blade end of the link assembly. Locate 9W2876 Tube Assembly (43) with the bend in the tube nearest the blade end of the link assembly as shown.

14. Clamp tube assemblies (40) and (43) to the tag link with three 1J7468 Clamps (44) and three 0S1571 Bolts (45) as shown.

15. Locate 9W2891 Tube Assembly (41) with the bend in the tube nearest the tractor end of the link assembly and 9W2875 Tube Assembly (42) with the bend in the tube nearest the tractor end of the link assembly as shown.

16. Clamp tube assemblies (41) and (42) to the tag link with three 1J7468 Clamps (44) and 0S1571 Bolts (45).

Clamp tube assemblies (40) and (41) to the link assembly at the blade end with 9W2877 Clamp (46), 5P1075 Washer (47) and 9B7237 Bolt (48).

Clamp tube assemblies (42) and (43) to the link assembly at the tractor end with 9W2877 Clamp (46), 5P1075 Washer (47) and 9B7237 Bolt (48).

Assembly Procedure (Type 2 only)

13. Locate 9U9488 Tube Assembly (40) to the link assembly as shown. Locate 9U9487 Tube Assembly (43) to the link assembly as shown.

14. Clamp tube assemblies (40) and (43) to the tag link with three 1J7468 Clamps (44) and three 5S7383 Bolts (45) and three 8T2561 washers (46) as shown.

15. Locate 9U9488 Tube Assembly (41) to the link assembly as shown. Locate 9U9487 Tube Assembly (42) to the link assembly as shown.

16. Clamp Tube Assemblies (41) and (42) to the tag link with the three remaining 1J7468 Clamps (44) and three 5S7383 Bolts (45) and 8T2561 Washers (46) as shown.

Clamp tube assemblies 9U9488 (40) to the link assembly at the blade end with 9W2877 Clamp (47), 5P1075 washer (48) and 9B7237 Bolt (49). Repeat this procedure at the tractor end.

Assembly Procedure (Applies to both Type 1 and Type 2)

17. Connect 9W2889 Hose Assembly (49) and 9W2890 Hose Assembly (50) to tube assemblies (40) and (42) respectively with 4J5267 Seal (51), 1P4577 Flanges (52), 8T4896 Washers (7) and 9B7237 Bolts (48).

Connect the other end of hose assembly (49) to the upper tube assembly (3) with 4J0520 Seal (53), 1P4577 Flanges (54), 8T4896 Washers (7), and 9B7237 Bolts (48).

Connect the other end of hose assembly (50) to the lower tube assembly (3) with 4J0520 Seal (53), 1P4577 Flanges (54), 8T4896 Washers (7), and 9B7237 Bolts (48).

18. Connect 6Y6042 Hose Assembly (55) to Tube Assembly (41) with 4J5267 Seal (53), 1P4576 Flanges (54), 8T4896 Washers (7) and 9B7237 Bolts (48).

Connect the other end of hose assembly (55) to the rod end of the right hand tilt cylinder with 4J0520 Seal (53), 1P4577 Flanges (54), 8T4896 Washers (7) and 9B7237 Bolts (48).

19. Connect 6Y6042 Hose Assembly (55) to tube assembly (40) with 4J5267 Seal (54), 1P4576 Flanges (54), 8T4896 Washers (7) and 9B7237 Bolts (48).

Connect the other end of hose assembly (55) to the head end of the right hand tilt cylinder with 4J0520 Seal (53), 1P4577 Flanges (54), 8T4896 Washers (7) and 9B7237 Bolts (48).

20. Install 6Y6043 Guard Assembly (56) to the right tilt cylinder with two 8C6913 Washers (57) and two 8T9400 Bolts (58) on the top. Install two 8C6913 Washers (57) and two 7X0381 Bolts (59) on the bottom.

21. Install 9W2898 Guard Assembly (60) to link assembly (36) with three 8T4122 Washers (61) and three 8T9393 Bolts (62).

NOTE: Make sure the end of the guard with a single tab is located on the tractor end of the link assembly.

22. Install 8E1866 Guard Assembly (63) with six 8T4223 Washers (30) and six 8T8917 Bolts (29) to the link assembly.

23. Install 8E1867 Guard Assembly (64) to guard assembly (63) with four 8T4223 Washers (30) and four 8T8917 Bolts (29).

24. Connect 6Y6041 Hose Assemblies (65) to 9W2881 Tube Assemblies on the blade with 4J0520 Seals (53), 1P4577 Flanges (54), 8T4896 Washers (7) and 9B7237 Bolts (48).

25. Connect the other end of hose assembly (65) coming from the top tube assembly (4) to the head end of the left hand tilt cylinder with 4J0520 Seal (53), 1P4577 Flanges (54), 8T4896 Washers (7) and 9B7237 Bolts (48).

Connect the other end of hose assembly (65) coming from the lower tube assembly (4) to the rod end of the left hand tilt cylinder with 4J0520 Seal (53), 1P4577 Flanges (54), 8T4896 Washers (7) and 9B7237 Bolts (48).

26. Install 6Y6044 Guard Assembly (66) to the left tilt cylinder with 8C6913 Washers (57), 8T9400 Bolts (58) to the top of the guard and washers (57), 7X0381 Bolts (59) to the lower part of the guard.

27. Install 4T3797 Connector (67) to blade with 9W2939 Pin (68), 6J5986 Retainer (69) and two 8T8917 Bolts (70), both sides.

Assembly Procedure (Type 1 only)

28. Connect 9W3216 Hose Assembly (71), 9W2888 Hose Assembly (72), 9W2887 Hose Assembly (73) and 9W2886 Hose Assembly (74) to the left side of the link assembly with four 4J5267 Seals (54), eight 1P4576 Flanges (55), sixteen 8T4896 Washers (7) and sixteen 9B7237 Bolts (48) as shown.

Assembly Procedure (Type 2 only)

28. Connect 9W2887 Hose Assembly (71), 9W2886 Hose assembly (72), 9W3216 Hose Assembly (73) and 9W2888 Hose Assembly (74) to the left side of the link assembly with four 4J5267 Seals (54), eight 1P4576 Flanges (55), sixteen 8T4896 Washers (7) and sixteen 9B7237 Bolts (48) as shown.

Installation of Bulldozer Assembly

Assembly Procedure (Applies to both Type 1 and Type 2)

1. Block the push arms to the height of the tractor trunnions.

2. Remove the nuts, bolts, caps and shims from the push arms.

3. Move the tractor into the push arms.

4. Install 7T4966 Bearing Cap (75) to push arm (15) with 4T9707 Shims (76), 8K5130 Bolts (77) and 2J3507 Nuts (78). Refer to the topic entitled Shimming Procedure in this Special Instruction for shimming instructions (both sides).

5. Fasten the lift cylinder to the blade with 6J5985 Pin (79), 6J5986 Retainer (69) and two 8T8917 Bolts (70) both sides.

6. Install link assembly (36) to the tractor trunnion with cap (37), bolts (38) and nuts (39). Add 1U1524 Shims as necessary. Refer to the topic entitled Shimming Procedure in this Special Instruction for shimming instructions.

7. Remove the shipping covers from the working ports on the radiator guard.

Assembly Procedure (Type 1 only)

Connect hose assembly (71), (72), (73) and (74) to the plate on the radiator guard, with four 4J5267 Seals, eight 1P4576 Flanges, sixteen 5M2894 Washers and sixteen 0S1588 Bolts as shown.

Assembly Procedure (Type 2 only)

Connect hose assembly (71), (72), (73) and (74) to the plate on the radiator guard, with four 4J5267 Seals, eight 1P4576 Flanges, sixteen 5M2894 Washers and sixteen 0S1588 Bolts as shown.

* The items not numbered are part of the tilt cylinder lines group and come on the tractor.

Assembly Procedure (Applies to both Type 1 and 2)

8. Install 9W2896 Guard (80) to link assembly (36) with two 8T4223 Washers (30) and two 8T8917 Bolts (29)