- Wheel Loader:
- 950H (S/N: K5K1-UP)
- 962H (S/N: K6K1-UP)
Introduction
This publication contains the information for installation of the kit for the secondary steering group. A complete listing of the parts that are contained in this kit are listed in the Parts Manual, SEBC1468. This supplemental product support literature should be used with the appropriate Service Manual and the appropriate Parts Manual that is available for this standard machine.
Do not perform any procedure and do not order parts that are outlined in this publication until you understand the information that is contained in this document.
Note: Cleanliness is an important factor. Before the removal of any component, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
| NOTICE |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
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Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin. |
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Modifying the Frame
- Locate the following parts and weld the following parts onto the rear frame.
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| Illustration 1 | g01289356 |
Views of the rear frame (E) 406.1 mm (15.98 inch) (F) 45 mm (1.77 inch) | |
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| Illustration 2 | g01289754 |
Section C-C from Illustration 1 (G) 1209 mm (47.60 inch) (H) 1148.5 mm (45.22 inch) (J) 643.5 mm (25.33 inch) (K) 404 mm (15.91 inch) (L) 891.4 mm (35.09 inch) (M) 106.9 mm (4.21 inch) (N) 642.9 mm (25.31 inch) (P) 594.4 mm (23.40 inch) (R) 537 mm (21.14 inch) (S) 436 mm (17.17 inch) (T) 360.7 mm (14.20 inch) (V) 279.9 mm (11.02 inch) (W) 179.5 mm (7.07 inch) (X) 994.9 mm (39.17 inch) (Y) 1140 mm (44.88 inch) (Z) 1173.5 mm (46.20 inch) (AA) 1208 mm (47.56 inch) | |
Installation of the Secondary Steering Pump and Mounting Group
- Refer to Illustration 2 for the mounting location. Use the following hardware and install the 266-7745 Bracket As (1) onto the 295-7978 Bracket and onto the 141-2817 Angle :
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| Illustration 3 | g01289368 |
View of the secondary steering pump and mounting group | |
- Use the following hardware and install the 275-8544 Secondary Steering Pump and Electric Motor Gp (2) onto the 266-7745 Bracket As (1) :
Removal of Tube from Steering Lines Group
Removal of Tube from Steering Lines Group for Machines with HMU Steering
- Remove the following parts:
(A) One adapter
(B) One elbow assembly
(C) Two O-ring seals
(D) Four bolts
(E) Four spacers
(F) Four washers
(G) Two half flanges
(H) One tube assembly
(J) Four bolts
(K) Four washers
(L) One seal
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| Illustration 4 | g01290449 |
Right side view of rear frame | |
Removal of Tube from Steering Lines Group for Machines with Command Control Steering
- Remove the following parts:
(A) One adapter
(B) One elbow assembly
(C) Two seal O-rings
(D) Four bolts
(E) Four spacers
(F) Four washers
(G) Two half flanges
(H) One tube assembly
(J) Four bolts
(K) Four washers
(L) One seal
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| Illustration 5 | g01290461 |
Right side view of rear frame | |
Installation of the Secondary Steering Lines Group
- Use the following hardware and install the 141-2597 Secondary Steering Valve (8) onto the pump bracket:
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| Illustration 6 | g01290503 |
- Use the following hardware and install the 263-6703 Elbow (6) :
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| Illustration 7 | g01291880 |
Top view of machine (Y) 50 degree ± 2 degrees angle | |
- Use the following hardware and connect the straight end of the 263-9742 Hose As (18) onto the 263-6703 Elbow (6) :
- Refer to Illustration 7. For the correct orientation, refer to the area that is marked F. Use the following hardware and connect the other end of the 263-9742 Hose As (18) onto the 141-2597 Secondary Steering Valve :
- Refer to Detail E in Illustration 8 for correct orientation. Use the following hardware and connect the ninety degree end of the 246-5136 Hose As (5) onto the secondary steering valve:
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| Illustration 8 | g01534938 |
Top view of machine (Z) 30 degree ± 2 degrees angle (X) 20 degree ± 2 degrees angle | |
- Refer to Section D-D in Illustration 8 for correct orientation. Use the following hardware and connect the other end of the 246-5136 Hose As (5) onto the secondary steering valve:
- Use the following hardware and secure the 246-5136 Hose As (5) .
- Use a 148-8327 Connector As (11) and connect the straight end of the 246-5135 Hose As (4) onto the hydraulic tank.
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| Illustration 9 | g01306980 |
Right side view | |
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| Illustration 10 | g01291944 |
Views from Illustration 9 | |
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| Illustration 11 | g01306317 |
View of the hose connections onto the hydraulic tank group | |
- Use a 148-8359 Elbow As (12) and connect the other end of the 246-5135 Hose As (4) onto the secondary steering pump.
- Use a 148-8392 Elbow As (15) and connect the straight end of the 282-6661 Hose As (4) onto the tee (A) .
- Use a 148-8364 Elbow As (13) and connect the other end of the 282-6661 Hose As (7) onto the secondary steering pump.
- Install a 148-8390 Elbow Gp (14) onto the top of the secondary steering valve.
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| Illustration 12 | g01534676 |
Right side view | |
- Use a 150-4048 Elbow As (17) and connect the other end of the 172-8599 Hose As (3) onto the secondary steering pump and motor group.
- Install two 150-3065 Adapter As (16) into the secondary steering valve.
Installation of the Secondary Steering Wiring Gp
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| Illustration 13 | g01536994 |
Top view of rear frame (X) Block | |
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| Illustration 14 | g01535114 |
View of section "B-B" in Illustration 13 | |
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| Illustration 15 | g01536973 |
View of section "C-C" in Illustration 14 | |
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| Illustration 16 | g01536738 |
View of sections "D-D" and "E-E" in Illustration 15 | |
- Refer to Illustration 13. Connect one end of the 297-6834 Cable As (7) onto the junction block (X). Remove the protective tubing from the terminal stud before attaching the 297-6834 Cable As (7). Tighten the top nut on the terminal stud to 70 ± 15 N·m (51.63 ± 11.06 lb ft).
- Refer to Illustration 14. Route the 297-6834 Cable As (7) from the terminal block to the solenoid that is on the motor that is for the secondary steering pump. Attach the other end of the 297-6834 Cable As (7) onto the solenoid that is on the motor for the secondary steering pump. Tighten the top nut on the terminal stud to 8 ± 1.4 N·m (70.81 ± 12.4 lb in). Use a 3S-2093 Cable Strap (2) and secure the terminal cover onto the 297-6834 Cable As (7) .
- Use the following hardware and secure the 297-6834 Cable As (7) :
- Refer to Illustration 14. Connect one end of the 297-7294 Cable As (8) onto the ground stud that is on the bracket for the motor that is for the secondary steering pump. Also connect the ground terminal of the 248-0220 Steering Harness As (6) onto the ground stud that is on the bracket for the motor that is for the secondary steering pump.
- Connect the other end of the 297-7294 Cable As (8) onto the ground stud that is on the motor that is for the secondary steering pump. Tighten the top nut on the terminal stud to 21.1 N·m (15.5625 lb ft).
- Use a 3K-0360 O-Ring Seal (14) and install the 230-5771 Pressure Switch (Secondary Steering Oil) (12). Tighten to 75 ± 7 N·m (55.32 ± 5.16 lb ft).
- Use a 3K-0360 O-Ring Seal (14) and install the 230-5771 Pressure Switch (Primary Steering Oil) (12A). Tighten to 75 ± 7 N·m (55.32 ± 5.16 lb ft).
- Connect the green wire of the 248-0220 Steering Harness As (6) to the right hand terminal of the solenoid that is on the motor for the secondary steering pump. Connect the black wire onto the left hand terminal.
- Refer to Illustration 16. Use the following hardware and install the 201-8428 Bracket As (5) onto the bracket that is for the secondary steering pump motor:
- Use the existing flange bolt and install the 127-9323 Bracket As (3) onto the rear end of the secondary steering valve.
- Refer to section "E-E" in Illustration 16. Use the following hardware in order to secure the 248-0220 Steering Harness assembly (6) to the 201-8428 Bracket As (5) :
- Refer to section "D-D" in Illustration 16. Use the following hardware and secure the 248-0220 Steering Harness Assembly (6) onto the 201-8428 Bracket As (5) :
- Connect the 248-0220 Steering Harness Assembly (6) onto the 230-5771 Pressure Switch (Primary Steering Oil) (12A). Use a 3S-2093 Cable Strap (2) and secure the lead for 230-5771 Pressure Switch (Primary Steering Oil) (12A). Use the following hardware and secure the connector that is for the 230-5771 Pressure Switch (Primary Steering Oil) (12A) onto the middle mounting bolt of the secondary steering valve:
- Connect the 248-0220 Steering Harness Assembly (6) onto the 230-5771 Pressure Switch (Primary Steering Oil) (12). Use a 3S-2093 Cable Strap (2) and secure the lead for 230-5771 Pressure Switch (Secondary Steering Oil) (12A). Secure the connector that is for the 230-5771 Pressure Switch (Secondary Steering Oil) (12A) onto the 130-5300 Clip (9) .
- Refer to section "F-F" in Illustration 14. Use the following hardware and secure the 248-0220 Steering Harness Assembly (6) and the 297-6834 Cable As (7) onto the rear frame:
- Refer to Illustration 14. Use the following hardware and install the 189-5604 Plate As (4) :
- Use the following hardware and install the 3E-5239 Relay As (Secondary Steering Motor) (1) :
- Connect the 248-0220 Steering Harness Assembly (6) to the 3E-5239 Relay As (Secondary Steering Motor) (1) .
- Connect the 248-0220 Steering Harness Assembly (6) to the main chassis harness.
- Secure the two connectors to the 130-5300 Clips (9).
- Remove the plug from the location that is shown and install the 236-4615 Rocker Switch (Secondary Steering) (28) .
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| Illustration 17 | g01545803 |