Required Tools | |||
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Tool | Part Number | Part Description | Qty |
A(1) | 9U-7536 | Lift Stand | 2 |
447-0910 | Electric Hydraulic Pump (115 V) | 1 | |
447-0911 | Electric Hydraulic Pump (230 V) | 1 | |
A1 | OR | ||
504-9791 | Lift Gp (60Hz)(2) | 2 | |
504-9793 | Lift Gp (50Hz)(3) | 2 | |
B | 439-3939 | Link Bracket | 2 |
C | 350-7768 | Electric Hydraulic Pump Gp | 1 |
6V-3160 | Double Acting Cylinder | 1 | |
9U-5343 | Puller Stud | 1 | |
9U-5345 | Nut | 1 | |
6V-4035 | Sleeve | 1 | |
428-9315 | Bearing Puller Plate (Upper Hitch) | 1 | |
D | 350-7768 | Electric Hydraulic Pump Gp | 1 |
6V-3160 | Double Acting Cylinder | 1 | |
9U-5343 | Puller Stud | 1 | |
9U-5345 | Nut | 1 | |
6V-4035 | Sleeve | 1 | |
428-9315 | Bearing Puller Plate (Upper Hitch) | 1 | |
E | 350-7768 | Electric Hydraulic Pump Gp | 1 |
6V-3160 | Double Acting Cylinder | 1 | |
9U-5343 | Puller Stud | 1 | |
9U-5345 | Nut | 1 | |
1M-6756 | Sleeve | 1 | |
428-9314 | Bearing Puller Plate (Upper Hitch) | 1 | |
F | 439-5575 | Hydraulic Jack | 1 |
(1) | Use Tooling (A) or (A1) based on requirements. |
(2) | Operating-Voltage (240V-480V) |
(3) | Operating-Voltage (200V-400V) |
Start By:
- Remove the cab.
- Remove the center drive shaft.
- Separate the steering frame lock.
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, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
Note: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. This helps to prevent fluid loss and contaminants from entering the system.
- Drain the oil from the hydraulic tank into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change".
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Illustration 1 g00847099 - Disconnect hose assembly (2) from fixed axle (1).
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Illustration 2 g01191942 - Disconnect hose assembly (3). Remove bolt (4) and disconnect harness assembly (5).
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Illustration 3 g01191989 - Remove bolt (6) and pin assembly (7). Position steering cylinder (8) away from the loader frame. Repeat for the remaining steering cylinder.
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Illustration 4 g00432878 For Tooling (A) - Position Tooling (A) under the rear frame.
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Illustration 5 g06391752 For Tooling (A1) - Position Tooling (A1) under the rear frame. Refer to Tool Operating Manual, NEHS1303, "Lift Group (Stand - 25 Ton)" for more information on Tooling (A1).
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Illustration 6 g01192002 - Position suitable cribbing under the front of the rear frame.
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Illustration 7 g01192028 - Remove sensor (10) and light assemblies (9).
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Illustration 8 g01192031 - Remove bolt (11). Repeat on the other side of the loader frame.
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Illustration 9 g01192014 - Attach Tooling (B) and a suitable lifting device to the loader frame.
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Illustration 10 g01192067 Show/hide tableIllustration 11 g01192772 - Remove bolts (12) and (13).
- Remove lower hitch mount plate (14) and shim pack (15).
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Illustration 12 g01192083 - Use Tooling (F) to remove pin (16).
Note: Use the suitable lifting device to relieve pressure from pin (16) during removal.
Show/hide tableIllustration 13 g01192098 - Remove lower spacer (17) from the lower hitch.
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Illustration 14 g01192123 Show/hide tableIllustration 15 g01192334 - Remove bolt (18) from pin assembly (19).
- Use Tooling (F) to remove pin assembly (19) from the upper hitch.
Note: Use a suitable lifting device to relieve pressure from pin assembly (19) during removal.
Show/hide tableIllustration 16 g00283523 Show/hide tableIllustration 17 g01192358 - Use a suitable lift truck and the suitable lifting device to separate the loader frame from the rear frame. Use suitable cribbing to support the loader frame and the rear frame.
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Illustration 18 g01192412 - Mark the position of upper cap (21). Remove bolts (20), the washers, and upper cap (21) from the upper hitch.
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Illustration 19 g01192422 - Mark the radial position of lower cap (22). Remove lower cap (22) from the upper hitch.
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Illustration 20 g01192447 - Remove shim pack (23).
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Illustration 21 g01192476 - Use Tooling (C) to remove the bearing cups and the bearing cones from the upper hitch of the front loader frame.
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Illustration 22 g01192478 - Remove lip seal (24) from upper cap (21).
- Remove lip seal (25) from lower cap (22).
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Illustration 23 g01192479 - Use Tooling (D) to remove lower sleeve bearing (26) from the upper hitch of the rear frame.
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Illustration 24 g01192485 - Use Tooling (D) to remove upper sleeve bearing (27) from the upper hitch of the rear frame.
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Illustration 25 g01192488 - Remove upper spacer (28).
- Mark the radial position of upper cap (30) and lower cap (31). Remove bolts (29), the washers, upper cap (30), and lower cap (31) from the lower hitch.
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Illustration 26 g01192575 - Remove shim pack (32).
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Illustration 27 g01192580 - Remove lip seal (33) from upper cap (30).
- Remove lip seal (34) from lower cap (31).
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Illustration 28 g01192582 - Use Tooling (E) to remove the bearing cups and the bearing cones from the lower hitch.