Rack-and-Pinion Axles, Hub Diameter 79 mm - Adjust Tread Widths

IMPORTANT: The distance between the side wall of the tire and the fender should not be less than 40 mm (1.57 in.)1.

The distance between the running surface (edge) of the tire and the fender must not be less than 60 mm (2.36 in.)2.

Werden Schneeketten auf die Reifen montiert, muss der Mindestabstand von den Reifen zu den Kotflügeln (axial und radial) 100 mm (3.94 in) betragen.


Rear Wheel Adjustment

L102691
L102691-UN-13APR00

NOTE: Adjustment of wheels is only possible when not more than two wheel weights are attached to each wheel.

  1. Clean the axle with a wire brush.

  2. Jack up tractor and turn rear wheel so that rack on axle faces upward.

  3. Loosen the attaching screws.

  4. Tighten the jack screws until the screw heads are flush against the face of the wheel hub.

    NOTE: If the wheel hub does not come loose, also unfasten the three screws on the back of the wheel disk. If this does not work, strike the end of the axle several times with a heavy hammer and once again tighten the jack screws evenly. It helps to soak the hub-halves in penetrating oil.

  5. Turn adjusting screw in or out until desired position is reached.

  6. After adjusting tread width, unfasten jack screws all the way out against stop. Do not use force!

  7. Lubricate threads and retighten attaching bolts alternately to 400 Nm (300 lb-ft). When the attaching bolts are tightened to specified torque, the jack screws should be free to turn; if this is not the case, loosen jack screws and retighten attaching screws to specified torque.

  8. After completing wheel tread adjustment, make sure that tires and wheel ballast weights do not rub against the tractor. Then drive the tractor approx. 50 m (160 ft), stop the tractor and retighten attaching bolts to 400 N·m (300 lb-ft). The bolts must be retightened to torque after 4 hours, after 8 hours and several times within the next 100 hours. See "Break-In Period".


Turn wheel hub (pinion inside)

LX008633
LX008633-UN-16AUG94

LX008634
LX008634-UN-16AUG94

A - Snap Ring

B - Wheel Hub

For unfastening, adjusting and tightening wheel hub, see previous page.

  1. To facilitate assembly, remove rear wheel.

  2. Remove snap ring (A). Turn adjusting screw so that wheel hub (B) is at maximum width. Remove wheel hub (B).

  3. Put wheel on axle at desired position. Turn wheel hub (B) around and install it.

  4. Install wheel and snap ring (A). For further assembly, see previous page.

1 Europe only. In non-European countries, a minimum clearance of 25 mm (1.0 in.) is recommended.
2 Europe only. In non-European countries, a minimum clearance of 25 mm (1,0 in.) is recommended.

OULXA64,0004BB7-19-20190308