Installing the Center Hitch Pins and Bushings

Standard Operating Procedure

Installing the Center Hitch Pins and Bushings

Installing the Center Hitch Pins and Bushings

Prepare and Position the Machine

  1. 1.
    Make sure that the machine is isolated and, if necessary, isolate the machine with the battery isolation switch.

Lifting and Installation

  1. 1.
    Lubricate both the hitch pins.
  2. 2.
    Make sure that the rear frame is supported on the maintenance stands.
  3. 3.

    WARNING

    Crushing Hazard

    Can cause personal injury.

    1. Lifting equipment must be adequately sized, have the correct lifting capacity, and be in good condition.

    2. Be careful when you lift heavy components.

    Attach an approved lifting device at the approved lifting points on the rear frame.
  4. 4.
    Attach an approved tag lines to prevent the accidental movements of the rear frame.
  5. 5.

    WARNING

    Crushing Hazard

    Unexpected movement of parts can cause personal injury or death.

    1. Do not put any part of your body on the object when lifting, moving, or lowering it.

    2. Do not go in, reside, or put body parts below unsecured, moveable, or lifted parts.

    3. Do not put hands and fingers in the pinch point areas when installing or tightening the parts.

    4. Stay away from moving parts.

    Lift the rear frame from the maintenance stands with the attached lifting device.
  6. 6.
    Put the rear frame near to the front frame.
  7. 7.
    Adjust the position of the lifting device to align the two frames at the articulation bores.
  8. 8.

    WARNING

    Heavy Components

    Lifting the heavy components by hand can cause body or muscle strains.

    1. Position the body accordingly to support the weight of the component.

    Put the maintenance stands below the rear frame for safety.
  9. 9.

    WARNING

    Heavy Components

    Lifting the heavy components by hand can cause body or muscle strains.

    1. Position the body accordingly to support the weight of the component.

    WARNING

    Pinch Points

    Can cause serious injury.

    1. Keep hands and fingers away from the moving parts during removal and installation of the component.

    2. Put on the applicable Personal Protective Equipment (PPE).

    Install the bushing (Figure 21, item B) and insert the top waist (item A) from above the frame bores to secure both frames.

    NOTE

    Align the lock washer to the lock nut by tightening or loosening the lock nut.

    Figure 21

    A

    Waist shaft

    B

    Bushing

    C

    Lock washer

    D

    Lock nut

  10. 10.
    Install the lock washer (item C) and the lock nut (item D) to secure the waist shaft (item A).
  11. 11.

    WARNING

    Heavy Components

    Lifting the heavy components by hand can cause body or muscle strains.

    1. Position the body accordingly to support the weight of the component.

    WARNING

    Pinch Points

    Can cause serious injury.

    1. Keep hands and fingers away from the moving parts during removal and installation of the component.

    2. Put on the applicable Personal Protective Equipment (PPE).

    Install the bushings (Figure 22, item C) and insert the bottom waist shaft (item D) to secure both the frames.

    NOTE

    Align the lock washer to the lock nut by tightening or loosening the lock nut.

    Figure 22

    A

    Lock nut

    B

    Lock washer

    C

    Bushings

    D

    Waist shaft

  12. 12.
    Install the lock washer (item B) and lock nut (item A) to secure the waist shaft (item D).
  13. 13.
    Tighten the lock nut (Figure 21, item D) and (Figure 22, item A) enough to allow the lock washer (Figure 21, item C) and (Figure 22, item B) to align with the grooves on the nut.
  14. 14.
    Fold the edge of lock washer to lock the lock nuts.
  15. 15.
    Install the articulation lock (Figure 23, item A).
    Figure 23

    A

    Articulation lock

    B

    Locking clip

  16. 16.
    Insert the locking clips (item B) to secure the articulation lock (item A).
  17. 17.

    WARNING

    Heavy Components

    Lifting the heavy components by hand can cause body or muscle strains.

    1. Position the body accordingly to support the weight of the component.

    WARNING

    Pinch Points

    Can cause serious injury.

    1. Keep hands and fingers away from the moving parts during removal and installation of the component.

    2. Put on the applicable Personal Protective Equipment (PPE).

    Align the steering cylinder rod-end to the mounting bracket on the rear frame.
  18. 18.

    WARNING

    Heavy Components

    Lifting the heavy components by hand can cause body or muscle strains.

    1. Position the body accordingly to support the weight of the component.

    Install the shaft (Figure 24A and 24B, item D) to the steering cylinder rod-end.
    Figure 24A Boltec M, Cabletec M, and E

    A

    Screw

    B

    Washers

    C

    Bushings

    D

    Shaft

    E

    Nut

    Figure 24B Cabletec LC

    A

    Screw

    B

    Washers

    C

    Lock sheet

    D

    Shaft

  19. 19.
    Install the steering cylinder rod-end hardware as follows:
    1. Alternative step
      For Boltec M, Cabletec M, and E Machine: Insert the screw (Figure 24A, item A) with washers (item B), bushings (Item C), and nut (item E) to the steering cylinder rod-end shaft.
    2. Alternative step
      For Cabletec LC Machine: Insert the screws (Figure 24B, item A) with washers (item B), and lock sheet (item C) to the steering cylinder rod-end shaft.
  20. 20.
    Torque the screws to 171 newton meters (126 foot-pounds) dry.
  21. 21.

    WARNING

    Heavy Components

    Lifting the heavy components by hand can cause body or muscle strains.

    1. Position the body accordingly to support the weight of the component.

    Move the fixture with the front driveline in position below the machine (Figure 25).
    Figure 25
  22. 22.
    Raise the front driveline with the adjustable fixture.
  23. 23.
    Apply thread locking compound to all driveline mounting screws.

    NOTE

    Use an approved tool to align the flanges.

  24. 24.

    WARNING

    Pinch Points

    Can cause serious injury.

    1. Keep hands and fingers away from the moving parts during removal and installation of the component.

    2. Put on the applicable Personal Protective Equipment (PPE).

    Align the flanges in an approximate position.
  25. 25.
    Install the lock nuts (Figure 26, item B), and insert the screws (item A) to secure the front driveline to the driveline bearing.

    NOTE

    Do not torque the screws.

    Figure 26

    A

    Screw

    B

    Lock nut

    NOTE

    Use an approved tool to align the flanges.

  26. 26.
    Torque the driveline screws (Figure 26, item A) to 113 Newton meters (83 foot-pounds) dry.
  27. 27.

    WARNING

    Pinch Points

    Can cause serious injury.

    1. Keep hands and fingers away from the moving parts during removal and installation of the component.

    2. Put on the applicable Personal Protective Equipment (PPE).

    Align the flanges in an approximate position.
  28. 28.
    Install the lock nuts (Figure 27, item B), and insert the screws (item A) to secure the front driveline to the transmission flange.
    Figure 27

    A

    Screw

    B

    Lock nut

    1. Alternative step
      For Boltec M, Cabletec M Machine: Torque the screws (Figure 27, item A) to 113 Newton meters (83 foot-pounds) dry.
    2. Alternative step
      For Cabletec E, LC Machine: Torque the screws (Figure 27, item A) to 170 Newton meters (125 foot-pounds) dry.
  29. 29.

    WARNING

    Heavy Components

    Lifting the heavy components by hand can cause body or muscle strains.

    1. Position the body accordingly to support the weight of the component.

    Remove the adjustable fixture from below the front driveline and put it in a safe location.
  30. 30.
    Lubricate the complete front driveline unit.
  31. 31.
    Remove the attached lifting device and tag lines from the rear frame.

Preparation of the component

  1. 1.

    WARNING

    Slipping Hazard

    Fluid leaks or spills can cause personal injury.

    1. Cover all of the open ports.

    2. Wipe off any spilled fluid immediately.

    Put the container or oil absorbent materials below the articulation area to collect the spilled fluid.
  2. 2.
    Connect the articulation lubrication hose (Figure 28, item A) to the machine frame.
    Figure 28

    A

    Lubrication hose

  3. 3.
    Move the hydraulic hoses to the correct position at the articulation area.
  4. 4.
    Start the vacuum pump.

    NOTE

    Some oil remains in all of the hoses. Install the hose connections with caution.

  5. 5.
    Connect the hydraulic hose (Figure 29, item A) near to the articulation area and secure them with straps.
    Figure 29

    A

    Hydraulic hose

  6. 6.
    Stop the vacuum pump.
  7. 7.

    CAUTION

    Environmental Contaminant

    Fluid is an environmental contaminant and must be discarded correctly.

    1. Do not let the used fluid drain onto the ground.

    2. Discard the used fluid in accordance with local environmental regulations.

    Remove the container or absorbent materials from below the articulation area.
  8. 8.

    DANGER

    Risk of Electric Shock

    Working with electrical systems can cause serious personal injury.

    1. Only authorized personnel can do the work involving cables, electrical cabinets, fuses, and connectors.

    2. Attach safety locks and tags to the electrical switches of the specific components before working.

    3. Do not use a high-pressure washer to clean the electrical components.

    Move the electrical cables to the correct position at the articulation area.
  9. 9.

    DANGER

    Risk of Electric Shock

    Working with electrical systems can cause serious personal injury.

    1. Only authorized personnel can do the work involving cables, electrical cabinets, fuses, and connectors.

    2. Attach safety locks and tags to the electrical switches of the specific components before working.

    3. Do not use a high-pressure washer to clean the electrical components.

    Connect the electrical cable (Figure 30, item A) near to the articulation area and secure them.
    Figure 30

    A

    Electrical cable

  10. 10.

    DANGER

    Risk of Electric Shock

    Working with electrical systems can cause serious personal injury.

    1. Only authorized personnel can do the work involving cables, electrical cabinets, fuses, and connectors.

    2. Attach safety locks and tags to the electrical switches of the specific components before working.

    3. Do not use a high-pressure washer to clean the electrical components.

    Connect the ground cable (Figure 31, item A) to both frames.
    Figure 31

    A

    Ground cable

  11. 11.

    WARNING

    High-Pressure System

    Working with pressurized systems can cause personal injury.

    1. Do not do the maintenance work when you operate the machine.

    2. Make sure that the hydraulic, water, and air systems are depressurized before you start to work on these systems.

    3. Put on the applicable gloves.

    Disconnect the vacuum pump from the hydraulic oil tank and install the breather filter (Figure 32, item A).
    Figure 32

    A

    Breather filter

  12. 12.

    WARNING

    Heavy Components

    Lifting the heavy components by hand can cause body or muscle strains.

    1. Position the body accordingly to support the weight of the component.

    Remove the maintenance stands from below the boom, Feed Assembly, and bolting unit.
  13. 13.
    Put the maintenance stands in a safe location.
  14. 14.

    WARNING

    Energized Machine

    Can cause serious injury.

    1. The machine must be fully energized and the engine must be switched on to complete this procedure.

    2. Be careful around moving parts and pinch points.

    Inform the supervisor, lead hand, and all other persons who are concerned of the intent to restart the machine.

    NOTE

    Make sure that all personnel and bystanders are clear of the machine before start-up.

  15. 15.
    Remove the safety locks and tags from the machine in accordance with the site-specific procedures.
  16. 16.
    Set the battery isolation switch to the ON position.
  17. 17.

    WARNING

    Energized Machine

    Can cause personal injury to the surrounding people.

    1. Warn the surrounding people that the machine is about to be started and operated.

    Start the machine.
  18. 18.
    Retract the front and rear support legs to lower the machine onto the ground (Figures 33A and 33B).
    Figure 33A
    Figure 33B
  19. 19.
    Retract the front jack support legs fully into the jack beam (Figure 34).
    Figure 34
  20. 20.
    Stop the machine.
  21. 21.
    Set the battery isolation switch to the OFF position.
  22. 22.
    Put a tag onto the battery isolation switch stating that the center hitch pins and bushings are replaced.