Adjusting and Tightening—Heavy-Duty Dual Wheels (10 or 12 Bolt Hubs)

RXA0091580
RXA0091580-UN-20NOV06

Heavy-Duty Hub-10 Bolt (120 mm Axle)

RXA0097661
RXA0097661-UN-03APR08

Heavy-Duty Hub 12 Bolt (120 mm Axle)

A - Cap Screws

CAUTION: Avoid personal injury. Never run the engine with transmission in gear when adjusting wheels. Wheels on the ground could pull supported wheels off jackstands.

Never operate tractor with a loose rim, wheel, or hub.

IMPORTANT: Tractors are equipped with 12 bolt heavy-duty wheels and 10 or 12 bolt hubs. Numbers indicating proper torquing sequence are cast into wheel hub.

Carefully follow procedure. Failure to do so could lead to wheel hub damage.

IMPORTANT: Clean any paint, grease, film, rust or debris from axle shafts prior to positioning and installing wheel hubs and sleeves. DO NOT apply any lubricant to cap screws or threads.

  1. Raise the tractor on level ground and support tractor with jackstands.

  2. Loosen (without removing) sleeve cap screws just enough to move wheel.

    IMPORTANT: Do not loosen or remove the two Allen Head Screws. Doing so could result in wheel jamming or damage.

  3. NOTE: Adjusting tool is not compatible with heavy-duty wheel hub.

    Move wheel to desired position.

  4. While making sure wheel is perpendicular to axle, tighten sleeve cap screws by hand in numerical order, then tighten cap screws to initial torque specification.

    ItemMeasurementSpecification
    Cap Screws Initial Torque405 N·m 300 lb-ft

  5. Tighten cap screws in numerical order to final torque specification.

    ItemMeasurementSpecification
    Cap Screws Final Torque610 N·m 450 lb-ft

    IMPORTANT: Repeat torquing pattern until ALL cap screws maintain proper torque. Failure to follow procedure could result in damage to equipment and personal injury.

  6. Drive tractor a minimum of 100 meters (110 yd) and tighten cap screws in numerical order to final torque specification.

  7. IMPORTANT: wheel sleeve may loosen in as little as 4-5 hours of operation resulting in damage to equipment. Torque wheel sleeve cap screws after working 3 HOURS, 10 HOURS, and DAILY during the first week of operation.

    Torque bolts after working 3 HOURS, 10 HOURS, and DAILY during the first week of operation.

OURX935,0000449-19-20110622