167
PR254A
NOTE: It may be necessary to heat the cap screws
to loosen the Loctite.
CLEANING AND INSPECTING
1. Clean all hub components.
2. Inspect all threads for stripping or damage.
3. Inspect the brake disc (if applicable) for cracks or
warping.
4. Inspect the hub for pits, cracks, loose studs, or spline wear.
REPLACING WHEEL STUDS
1. Secure the hub in a suitable holding fixture and
remove the brake disc (if applicable).
2. Drive the damaged stud out of the hub; then place the
new stud into the hub and thread on an appropriate
flange nut.
PR250
3. Using a socket and ratchet handle, tighten the nut until
the stud is fully drawn into the hub.
PR252A
INSTALLING
1. Secure the brake disc to the hub with the four cap screws
coated with red Loctite #271. Tighten to 15 ft-lb.
2. Install the hub assembly onto the axle; then apply
Loctite primer and red Loctite #277 to the axle
threads. Install the brake caliper and secure with new
“patch-lock” cap screws. Tighten to 20 ft-lb.
WC281
3. Engage the hub nut into the Belleville washer on the con-
vex side; then with the concave side of the washer directed
toward the hub, install the nut and washer. Keeping the nut
and washer engaged, tighten the hub nut to 250 ft-lb.
WC303A
WC769A
4. Install the hub plate making sure it fits completely
over the nut and lies flat against the hub.