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SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA
Base Section 5 – Procedures
Front Integrated Hub Wheel Installation
1. Install the hub/integrated hub wheel onto the
spindle.
2. Install the castle nut and the at washer. Finger
tighten the nut.
3. For machines with pin brakes, use a wrench to
manually disengage the pin brakes on both sides.
This will allow you to rotate the wheel.
4. Rotate the hub/wheel slowly while tightening the
castle nut to approximately 68 Nm (50 ft-lb). This
is to seat all the bearings in the wheel assembly.
NOTE
Do not over-torque the castle nut as the bearing
life would be reduced
5. Loosen the castle nut to remove the torque. Do
not rotate the wheel.
6. Finger tighten the castle nut until it is snug.
NOTE
The castle nut should be free to rotate, with the
only restraint being the cotter pin
7. For machines with pin brakes, use a wrench
to re-engage the pin brakes on both sides. Do
not lower the machine while the pin brakes are
disengaged.
8. Turn the castle nut back slightly until the next
cotter pin hole is visible on the spindle.
9. Install a 3/16” x 1-1/2” cotter pin.
10. Make sure the cotter pin is pushed in completely.
11. Bend the ends of the cotter pin to secure the
castle nut.
12. Install the dust cap over the castle nut. Be sure
not to damage the castle nut while installing the
dust cap.
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