Tighten Rear Wheel Bolts—Heavy-Duty 12-Bolt Hubs

RXA0090157-UN-08AUG06

12-Bolt Heavy-Duty Drive Wheel

CAUTION: Avoid the possibility of personal injury. Never operate tractor with loose wheel bolts. Failure to follow procedure may result in personal injury. Wheel bolts are critical to operation and require repeated torquing to assure secure tightness.

IMPORTANT: Some bolts may loosen as sleeve is tightened. Repeat torquing sequence until ALL bolts maintain proper torque. Numbers indicating proper torquing sequences are cast into wheel hub. Failure to follow procedure could result in damage to equipment.

Tighten wheel to hub bolts (1-12) to initial torque specifications in numerical sequence shown until torque is maintained.

Tighten bolts to final torque specifications - in numerical sequence - until torque is maintained.

Item	Measurement	Specification
Wheel to Hub Bolts
Initial Torque	Torque	405 N·m (300 lb.-ft.)
Final Torque	Torque 610 N·m	(450 lb.-ft.)

Drive tractor unloaded in a large figure-8 pattern a minimum of four times and retighten bolts - in numerical order - until bolts maintain final torque specification.

IMPORTANT: Keep wheel bolts tightened to specification. If tractor is operated with loose bolts, damage to equipment may occur.

Retighten bolts after working 3 HOURS, again after 10 HOURS and DAILY for first week of operation or until bolts do not move when retorqued.