Install Front Wheels—Dual Wheels

1. CAUTION: Dual wheels are heavy (approximately 550 kg (1213 lb) without liquid ballast) and difficult to handle due to extreme offset of tire and rim. When handling wheels, off centered weight can suddenly shift making wheel handling awkward and the wheel difficult to control. To avoid personal injury, two people are needed to control wheel handling.

   NOTE: If installing dual wheels, both inner and outer wheels are positioned, so the bottom end of tire cleats are facing towards front and down. Tire MUST be installed as directed or machine will not be drivable.

   Pilot stud HXE16110 is recommended to help guide wheels into position.

   Install pilot studs in top and bottom holes of the drive hub (A). Stud threads must bottom out in hole so inner end is flush with the inside hub.

   
   H96886-UN-14JUN10

   A - Drive Hub

   B - Spacer Ring

   C - Washers (10 Used)

   D - Wheel Bolts (10 Used)

---




2. IMPORTANT: Wheel bolts MUST be lubricated when installing and torquing.

   Due to countersunk design of the spacer ring, inner wheel bolts can be checked and torqued when outer wheel is removed.

   Inner wheel is installed over the drive hub (rim dished in) positioning tire close to machine.

   Position inner wheel on studs with bottom end of tire cleats to front and down.

3. Install wheel with the spacer ring (B) and retain with washers (C) and wheel bolts (D). Wheel bolt heads fit inside larger unthreaded holes.

4. Replace pilot studs with washers and wheel bolts.

5. Final Wheel Bolt Torque: Torque wheel bolts to specification using criss/cross pattern pulling wheel tight against hub.

   Item	Measurement	Specification
   Wheel Bolts	Torque	710 N·m (524 lb·ft)

   
   H96863-UN-10JUN10

   Torque Sequence

---




6. Repeat steps on the opposite side of machine.

7. CAUTION: Dual wheels are heavy (approximately 550 kg (1213 lb) without liquid ballast) and difficult to handle due to extreme offset of tire and rim. When handling wheels, off centered weight can suddenly shift making wheel handling awkward and wheel difficult to control. To avoid personal injury, two people are needed to control wheel handling.

   IMPORTANT: Due to countersunk design of the spacer ring, inner wheel bolts can be checked and torqued when outer wheel is removed.

   NOTE: Outer wheels have a chain slot (E) in rims.

   Outer Wheel Installation: Install pilot studs (A) in top and bottom tapped holes of the spacer ring. Stud threads must bottom out in hole.

   
   H96887-UN-17JUN10

   A - Pilot Studs

   B - Spacers

   C - Washers (10 Used)

   D - Wheel Bolts (10 Used)

   E - Chain Slot

---




8. Position outer wheel on studs with bottom end of tire cleats to front and down.

9. Install wheel with spacers (B) and retain with washers (C) and wheel bolts (D).

10. Remove pilot studs and replace with spacers, washers, and wheel bolts.

11. Final Wheel Bolt Torque: Torque wheel bolts to specification using criss/cross pattern pulling wheel tight against hub.

    Item	Measurement	Specification
    Wheel Bolts	Torque	710 N·m (524 lb·ft)

    
    H96863-UN-10JUN10

    Torque Sequence

---




12. Check tire pressure and inflate as needed. See Care and Service of Tires in this Section for tire inflation pressure.

13. Repeat outer wheel steps on the opposite side of machine.