793C Off-Highway Truck Machine Systems Front Suspension (Cylinder) - Remove Caterpillar


Front Suspension (Cylinder) - Remove
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1.1. Removal Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
M30 x 3.5
Guide Stud 
138-7576  Link Bracket 
138-7574  Link Bracket 
9U-5613  Puller 

Start By:

  1. Remove the service and parking brake. Refer to Disassembly and Assembly, "Service and Parking Brake (Front) - Remove".

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

    Read all Warning labels on the suspension cylinders before servicing.

    The machine must be on level ground before releasing the nitrogen pressure.

    Do not check the oil in the suspension cylinder until all of the nitrogen pressure has been released.

    Do not remove valves, covers, or plugs from the cylinder unless the rod is fully retracted and all of the nitrogen pressure as been released.

    Stand clear of the machine during suspension cylinder charging, discharging, or testing and adjusting procedures, or while lifting or lowering the machine.

    Sudden movement upward or downward can cause clearance to change rapidly.

    Failure to heed this Warning could lead to injury or death.


  1. Discharge the suspension cylinder. Refer to Testing and Adjusting, "General Information".


    Illustration 1g01415257

  2. Release the torque on bolts (1) by loosening each of bolts (1) by one half turn in a circular pattern.

    Note: A failure to perform this procedure can result in bolt breakage and personal injury.



    Illustration 2g01415331

  3. Remove two of bolts (1). Install Tooling (A). Remove the remaining bolts (1).


    Illustration 3g01415347

  4. Use Tooling (B) and a suitable lifting device in order to remove retainer plate (2). The weight of retainer plate (2) is approximately 110 kg (243 lb).


    Illustration 4g01415350

  5. Remove shims (3).

    Note: Note the quantity and the order of shims (3).



    Illustration 5g01415352

  6. Attach Tooling (C) and two suitable lifting devices onto spindle (4). The weight of spindle (4) is approximately 1005 kg (2216 lb).


    Illustration 6g01415357

  7. Use Tooling (B) in order to position Tooling (D) onto Tooling (A) and spindle (4). The weight of Tooling (D) is approximately 68 kg (150 lb).


    Illustration 7g01415359

  8. Install two of bolts (1). Remove Tooling (B). Tighten bolts (1) until Tooling (D) contacts suspension cylinder (5).


    Illustration 8g01415367

  9. Remove bolts (6). Use two people in order to remove bracket assembly (7). Repeat this step for the opposite side of spindle (4).


    Illustration 9g01415387

  10. Install the remaining bolts (1). Tighten bolts (1) by one half turn in a circular pattern until spindle (4) separates from suspension cylinder (5).

    Note: Do not exceed a torque of 1800 ± 200 N·m (1328 ± 148 lb ft) on bolts (1).



    Illustration 10g01415397

  11. Loosen bolts (1). Install Tooling (B) and a suitable lifting device onto Tooling (D). The weight of Tooling (D) is approximately 68 kg (150 lb). Remove bolts (1). Remove Tooling (D).


    Illustration 11g01415403

  12. Remove spindle (4) from suspension cylinder (5).

Information System:

793D Off-Highway Truck Machine Systems Service and Parking Brake (Front) - Assemble
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793D Off-Highway Truck Machine Systems Service and Parking Brake (Front) - Install
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