Adjusting Park Brake


Park Brake Adjustment

Perform adjustment if neutral interlock system adequately restrains controls in neutral, but brake will not hold on slope.

  1. Park machine safely. (See Parking Safely in the SAFETY section.)

  2. Lock park brake.

  3. TCAL43554
    TCAL43554-UN-21MAR13

    Measure the gap (A) between the two washers (B).


  4. Tighten or loosen the brake equalizer adjustment nut (C) so that the gap (A) between the two washers measures meets specifications.

    ItemMeasurementSpecification
    Park Brake WasherGap27 - 29 mm (1-1/16 - 1-9/64 in.)


Neutral Interlock Adjustment (Z900R)

Perform adjustment only if neutral interlock system does not adequately lock control levers in neutral, or if brake/steering system has been disassembled.

  1. Park machine safely. (See Parking Safely in the SAFETY section.)

  2. Unlock park brake.

  3. Back off brake equalizer adjustment nut (C) to end of threaded rod (D), but do not remove. Check spring to make sure it is not compressed when park brake is locked.

  4. Lock park brake.

  5. Move control levers to the neutral lock position.

  6. TCAL43555
    TCAL43555-UN-21MAR13

    TCAL43556
    TCAL43556-UN-21MAR13

    Control lever removed for clarity.

    Loosen jam nuts (E).


  7. Adjust (shorten) turnbuckle (F) until cam (G) is fully engaged under control pivot wedge (H).

    • When adjusted properly, cam (G) and control surface (I) will be parallel.

      TCAL43557
      TCAL43557-UN-21MAR13



  8. Verify that the control lever will freely move in and out of the slot in the frame before tightening jam nuts.

  9. Adjust the equalizer adjustment nut (C). (See Park Brake Adjustment.)

  10. Move control levers to the neutral lock position.

  11. TCAL43558
    TCAL43558-UN-21MAR13

    Adjust control set screw (J) until you notice the control lever begin to move forward in the control slot.


  12. Move control lever in and out to verify that it is not binding with the frame slot. Lock and unlock park brake.

  13. NOTE: Do not pull pedal back manually.

    If brake pedal binds or does not fully release, loosen the set screw by 1/6 of a turn. Check pedal again for binding. If pedal still binds, loosen the right side set screw by 1/6 of a turn. Repeat as necessary.

BB87125,0001225-19-20130605