793D 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 
283-0811  Puller Plate 
138-7574  Link Bracket 

Start By:

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

Note: The following procedure represents the removal and the installation of the front suspension cylinder on the right side. This procedure can also be used for the front suspension cylinder on the left side.

    ------ 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 1g01413922

  2. Attach a suitable lifting device onto steering arm (1). The weight of steering arm (1) is approximately 309 kg (681 lb). Loosen each of bolts (2) by one half turn in a circular pattern. Remove bolts (2).

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



    Illustration 2g01413940

  3. Install Tooling (A). Loosen each of bolts (3) by one half turn in a circular pattern. Remove bolts (3).

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



    Illustration 3g01414007

  4. Use one of bolts (2) in order to retain steering arm (1). Use two of bolts (2) in order to separate steering arm (1) from the spindle.


    Illustration 4g01414021

  5. Use Tooling (B) and two suitable lifting devices in order to remove steering arm (1). The weight of steering arm (1) is approximately 309 kg (681 lb).


    Illustration 5g01414050

  6. Remove shims (4).

    Note: Note the quantity and the order of shims (4).



    Illustration 6g01414235

  7. Attach Tooling (D) and two suitable lifting devices onto spindle (5). The weight of spindle (5) is approximately 1107 kg (2441 lb).


    Illustration 7g01414218


    Illustration 8g01414296

  8. Use Tooling (B) in order to position Tooling (C) onto Tooling (A) and spindle (5). The weight of Tooling (C) is approximately 68 kg (150 lb). Install two of bolts (2). Remove Tooling (B). Tighten bolts (2) until Tooling (C) contacts suspension cylinder (6).


    Illustration 9g01414263

  9. Remove bolts (7). Repeat this step for the opposite side of spindle (5).


    Illustration 10g01414300

  10. Install the remaining bolts (2). Tighten bolts (2) by one half turn in a circular pattern until spindle (5) separates from suspension cylinder (6).

    Note: Do not exceed a torque of 1800 ± 200 N·m (1328 ± 148 lb ft) on bolts (2).



    Illustration 11g01414316

  11. Loosen bolts (2). Install Tooling (B) and a suitable lifting device onto Tooling (C). The weight of Tooling (C) is approximately 68 kg (150 lb). Remove bolts (2). Remove Tooling (C).


    Illustration 12g01414384

  12. Remove spindle (5) from suspension cylinder (6).

Information System:

793C Off-Highway Truck Machine Systems Front Suspension (Cylinder) - Install
793C Off-Highway Truck Machine Systems Front Suspension (Cylinder) - Remove
793D Off-Highway Truck Machine Systems Service and Parking Brake (Front) - Assemble
793D Off-Highway Truck Machine Systems Service and Parking Brake (Front) - Disassemble
793D Off-Highway Truck Machine Systems Service and Parking Brake (Front) - Install
793D Off-Highway Truck Machine Systems Service and Parking Brake (Front) - Remove
938H Wheel Loader and IT38H Integrated Toolcarrier Hydraulic System Ride Control Accumulator - Test and Charge
3176C Engine for the R1600G and the R1700G Load Haul Dumps Speed Control (Remote Throttle) - Test
3176C Engine for the R1600G and the R1700G Load Haul Dumps Power Is Intermittently Low or Power Cutout Is Intermittent
3176C Engine for the R1600G and the R1700G Load Haul Dumps Oil Pressure Is Low
140H and 160H Motor Graders Changing Direction and Speed
2007/09/24 An Improved Fuse and ARC Suppressor is Now Used in the Axle Oil Cooler Wiring Harness {1365, 1408}
793D Off-Highway Truck Machine Systems Front Suspension (Cylinder) - Install
160M and 160 Motor Grader Machine Systems Steering Cylinder - Remove and Install
140M and 150 Motor Graders Engine Supplement Water Temperature Regulator - Remove and Install
CP76 and CS76 Vibratory Compactors Propel System Case Drain Flow for Piston Motor (Drum Propel) - Test
2007/08/27 New AccuGrade Software is Now Available {7220, 7620}
CS54 and CP54 Vibratory Soil Compactors Fuel System Secondary Filter - Replace
CP76 and CS76 Vibratory Compactors Propel System Case Drain Flow for Piston Motor (Axle Propel) - Test
CS54 and CP54 Vibratory Soil Compactors Fuel System Primary Filter - Clean/Inspect/Replace
2007/08/27 The Traction Control System (If Equipped) is Updated {1408, 4801}
CS56, CS64, CS74, CS76, CP56, CP64, CP74 and CP76 Vibratory Soil Compactors Fuel System Primary Filter (Water Separator) - Replace
CP76 and CS76 Vibratory Compactors Propel System Travel Speed - Check
CP76 and CS76 Vibratory Compactors Propel System Parking Brake - Test