Adjusting and Tightening Wheels—Standard Cast Drive Wheel and Dual Hubs

RW26331-UN-24JUN99

RXA0072370-UN-05DEC03

A - Wheel Adjusting Tool

CAUTION: Avoid personal injury. Never operate engine with transmission in gear when adjusting wheels. Wheels on ground could pull supported wheels off jack stands.

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

IMPORTANT: 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 tractor on level ground and turn wheel so rack on axle is upward.

2. Loosen lower hub center bolt against retaining nut. Loosen outer hub sleeve bolts.

3. Tighten inner jack screws on upper and lower hub sleeves to loosen sleeves. Tighten jack screws up to 500—600 N˙m (370—440 lb.-ft.) if necessary.

   NOTE: Strike end of axle with a heavy hammer and use penetrating oil if sleeves are difficult to break loose.

4. Remove jack screws from upper hub sleeve and install JDG667A for 100 mm axle and JDG668A for 110 mm axle Wheel Adjusting Tool (A) (available from your John Deere Dealer) using sleeve bolts. Move wheel to desired position. Observe tread width limitations.

5. Remove adjusting tool and jack screws.

6. IMPORTANT: Keep the face of hub sleeves even to prevent hub breakage or bolt loosening.

   Tighten hub sleeve bolts to 204 N˙m (150 lb.-ft.) beginning with center bolt in lower sleeve, then criss-crossing other bolts. Retighten bolts to 410 N˙m (300 lb.-ft.) using same sequence.

   Drive tractor a minimum of 100 meters (110 yd.) and tighten bolts to 600 N˙m (445 lb.-ft.).

   Retighten bolts after working 3 HOURS and again after 10 HOURS. Continue to tighten to specified torque daily during first week of operation.

   IMPORTANT: If tractor is operated with wheel sleeve loose for 4-5 hours, it is necessary to replace sleeves.