Checking and Adjusting Motion Control Linkages

CAUTION: Avoid injury! Do not attempt this adjustment unless you are a qualified and properly trained technician. Improper adjustment can result in an unsafe machine.


Checking Motion Control Linkages

NOTE: Check and adjust motion control linkages with the machine parked on a hard, level surface.

CAUTION: Avoid injury! Engine exhaust fumes contain carbon monoxide and can cause serious illness or death.

• Move the machine to an outside area before running the engine.

• Do not run an engine in an enclosed area without adequate ventilation.

• Connect a pipe extension to the engine exhaust pipe to direct the exhaust fumes out of the area.

• Allow fresh outside air into the work area to clear the exhaust fumes out.

  1. Sit on operator’s seat and place both motion control levers in the neutral lock position.

  2. Start engine.

  3. Set throttle lever to the fast position.

  4. Unlock park brake.

  5. If the drive wheels begin to creep, an adjustment is required.


Adjusting Motion Control Linkages

  1. Stop engine and lock park brake.

  2. Lift drive wheels off the ground using a safe lifting device and use jackstands to support machine.

  3. TCT011212
    TCT011212-UN-02JUN14

    Move both motion control levers (A) to the neutral lock position.


  4. Adjust seat fully rearward.

  5. Lift and secure operator seat in the raised position.

  6. TCAL43815
    TCAL43815-UN-21MAR13

    Remove cotter pin and washer (C) from support rod (D) and remove seat rod from side of seat frame.


  7. Tilt seat forward to rest on front frame.

  8. Raise rear of machine with a safe lifting device.

    • Support rear of machine with wood blocks or jack stands.
    • Rear drive wheels must have the ability to rotate freely.

  9. Activate operator seat safety switch:

    • NOTE: To avoid damaging the seat cushion, cover end of wood block with a rag.

      TCAL43816
      TCAL43816-UN-21MAR13

      Place a wooden block (E) approximately 33—38 cm (13—14 in.) long between the foot plate and the center of the seat.


  10. Start engine.

  11. Set throttle to the fast position.

  12. CAUTION: Avoid injury! Prevent entanglement when performing this service procedure by keeping hands, feet and clothing away from rotating tires.

    Unlock park brake.

  13. TCT011450
    TCT011450-UN-07JUL14

    Locate right (F) and left (G) and motion control linkages.


  14. Be sure the right motion control lever is in the neutral lock position.

    • The right drive wheel must not turn. If it does turn, adjust the right motion control linkage (F):

    1. Loosen the hex nuts (H) on each end of the right link.

    2. Adjust the link until the right wheel stops rotating completely.

    3. Tighten the hex nuts (H).

  15. Move the right motion control lever completely forward and rearward in the slot and then back to the neutral lock position.

    • The right drive wheel must stop completely. If the drive wheel does not completely stop rotating, repeat step 14 and 15.

  16. Repeat procedure to adjust the left motion control linkage (G).

  17. Stop engine.

  18. Move both motion control levers to the neutral lock position.

  19. Remove wood block from between foot plate and the operator seat.

  20. Lower machine.

  21. Install support rod to side of seat frame and secure with washer and cotter pin.

  22. Lower seat.

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