797 Off-Highway Truck Power Train Caterpillar


Tire and Rim (Rear) - Install

Usage:

797 5YW

Installation Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
A(1)  9U-7489  Lift Stand 
447-0910 Electric Hydraulic Pump Gp (115 V) 
447-0911 Electric Hydraulic Pump Gp (230 V) 
A1  OR 
504-9830 Lift Gp (50/60 Hz)(2) 
504-9831 Lift Gp (50/60 Hz)(3) 
443-7801  Tool Gp 
443-7797 Tool Gp 
132-8232 Power Pack 
159-2833 Socket 
439-3940  Link Bracket 
201-7602  Stand 
8C-3226  Bolt 
6V-8149 Nut 
5P-8245 Hard Washer 
Loctite C5-A 
(1) Use Tooling (A) or (A1) based on requirements.
(2) Operating Voltage (380V - 500V)
(3) Operating Voltage (180V - 300V)

------ WARNING! ------

Follow the recommended procedure for removal and installation of tires and or wheel assemblies.

Ensure that the machine and tire and or wheel assembly are properly supported at all times.

Improper procedures that are used to remove and install tires and or wheel assemblies can result in personal injury or death.


------ WARNING! ------

Servicing and changing tires and rims can be dangerous. This work must be done only by trained personnel with correct tools and procedures. If correct procedures are not followed while servicing tires and rims, the assemblies can burst with explosive force and cause serious physical injury or death. Follow carefully the specification information provided by your tire servicing person or dealer.


  1. Thoroughly clean the wheel studs and the mounting flange face. Remove any paint, debris, or other contaminants.


    Illustration 1g02150854


    NOTICE

    The weight of the tire and rim can vary significantly depending on the tire and rim configuration


  2. Use a suitable tire handler to position tire and rim (10) onto the wheel. The weight of tire and rim (10) is approximately 8618 kg (19000 lb).


    Illustration 2g02150832


    NOTICE

    Only apply 5P-3931 Anti-Seize Compound (Loctite C5A), or a light coat of oil onto the wheel studs after the wheel has been fully seated to avoid contamination of the mating joint surface. Anti-seize may be preferred in corrosive environments to make nut removal easier when removing rims. No other anti-seize compound is to be used - only Loctite C5A.


  3. Apply Tooling (F) or a light coat of oil onto four of the wheel studs that are equally spaced and approximately 90 degrees apart.

    Note: Apply a light coat of oil to the faces of the washers.

  4. Install four of nuts (9) and the washers that are equally spaced and approximately 90 degrees apart to keep tire and rim (10) in position on the wheel.

  5. Apply (F) or a light coat of oil onto the remaining wheel studs

    Note: Apply a light coat of oil to the faces of the washers.

  6. Install the remaining nuts (9) and the washers. Use Tooling (B) to tighten nuts (9) to a torque of 3100 ± 350 N·m (2286 ± 258 lb ft).


    Illustration 3g06061824


    NOTICE

    Damage may occur during the installation of the adapters, ensure that there is proper clearance between components during the installation process.


  7. Use Tooling (C) and a suitable lifting device to install lower rim adapter (7B). The weight of upper rim adapter (7B) is approximately 323 kg (712 lb). Install bolts (8).

    1. Alternatively, Use Tooling (D) and a suitable fork truck to position lower rim adapter (7B). The weight of lower rim adapter (7B) is approximately 323 kg (712 lb). Install bolts (8).


    Illustration 4g06061795


    NOTICE

    Damage may occur during the installation of the adapters, ensure that there is proper clearance between components during the installation process.


  8. Use Tooling (C) and a suitable lifting device to install upper rim adapter (7A). The weight of upper rim adapter (7A) is approximately 323 kg (712 lb). Install bolts (8).

    Note: Bolts (8) do not require any lubricant.



    Illustration 5g03163076

  9. Orient the upper rim adapter (7A) and the lower rim adapter (7B) to allow the inboard air line to pass through the cutout in the rim adapters.


    Illustration 6g03868397


    Illustration 7g03845705

  10. Ensure mating surfaces of Tooling (7A) and (7B) are free of debris. Use four equally spaced bolts (8) in each adapter (7A) and (7B) during the seating of the adapters. Tighten all four bolts (8) to 180 N·m (133 lb ft) , then loosen each bolt (8) 180° to allow for adjustment.

  11. Insert Tooling (D) through the holes (X) in the special studs on the ends of the rim adapters. Adjust rim adapters gaps (E) to be equal on each side and torque Tooling (D) to 35 N·m (26 lb ft).

    Note: Measure gaps, indicated by Dimension (E) in Illustration7, at each end of the adapter to ensure parallel installation and rim fit-up.

  12. Tighten the four bolts (8) to 180 N·m (133 lb ft) and check gap. Repeat Steps 10 - 12 as needed to equalize gap.

    Note: Bolts (8) do not require any lubricant.

  13. Install remaining bolts (8) working from the center outward and torque 3100 ± 350 N·m (2287 ± 260 lb ft).


    Illustration 8g02150788

  14. Install guards (6) and brackets (5).


    Illustration 9g02150778

  15. Install guard (4).


    Illustration 10g02150776


    NOTICE

    The weight of the tire and rim can vary significantly depending on the tire and rim configuration


  16. Use a suitable tire handler to install tire and rim (3). The weight of tire and rim (3) is approximately 8618 kg (19000 lb).


    Illustration 11g02150771


    NOTICE

    Only apply 5P-3931 Anti-Seize Compound (Loctite C5A), or a light coat of oil onto the wheel studs after the wheel has been fully seated to avoid contamination of the mating joint surface. Anti-seize may be preferred in corrosive environments to make nut removal easier when removing rims. No other anti-seize compound is to be used - only Loctite C5A.


  17. Connect bracket (1).

  18. Apply Tooling (F) or a light coat of oil onto four of the wheel studs that are equally spaced and approximately 90 degrees apart.

    Note: Apply a light coat of oil to the faces of the washers.

  19. Install four of nuts (2) and the washers that are equally spaced and approximately 90 degrees apart to keep tire and rim (3) in position on the wheel.

  20. Apply Tooling (F) or a light coat of oil onto the remaining wheel studs.

    Note: Apply a light coat of oil to the faces of the washers.

  21. Install the remaining nuts (2) and the washers. Use Tooling (B) to tighten nuts (2) to a torque of 3100 ± 350 N·m (2286 ± 258 lb ft).


    Illustration 12g02146359
    For Tooling (A)

  22. Use Tooling (A) to lower the rear of the machine. Refer to Operation and Maintenance Manual, "Jacking Locations - Rear of the Machine". Remove Tooling (A).


    Illustration 13g06383782
    Typical example
    For Tooling (A1)

  23. Use Tooling (A1) to lower the rear of the machine. Refer to Operation and Maintenance Manual, "Jacking Locations - Rear of the Machine". Remove Tooling (A1).

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