
CD3 Products Manual
CD3, General Benefit Corporation |
| 612.467.9441
Patent
Pending | Made in USA | © 2019
44
4.6 Trailer (Wayside120V and Wayside Solar Units Only)
**Important! - Always use a safety support and block the wheels when working
under the trailer. Never use a jack alone to support the trailer.
4.6.1 Greasing Wheel Bearings
The trailer wheel bearings are unlike those in your motor vehicle in that they require
periodic
maintenance to
ensure reliable, safe operation. They should be greased on a
maintenance schedule in accordance with the table in section 4.9 Maintenance Schedule
Table. The procedure is given below, but always begin by jacking the trailer up and
supporting it with appropriate jack stands for added safety.
Disassembly
1.
Lift and support trailer with the subject wheel free of ground contact. Place jack
stands on the trailer frame relatively near the subject wheel.
2.
Remove the wheel.
3.
Remove the hub dust cap by gently prying it from the hub.
4.
The cotter pin will need to be removed which will allow the removal of the castle nut
along with the spacer washer, outer wheel bearing and hub.
5.
The back side of the hub houses the inner wheel bearing. The bearing seal is pressed
into the back of the hub and needs to be removed to get the inner wheel bearing
out. A puller should be used to properly remove the seal without damaging it.
6.
Prior to repacking bearings, all grease must be removed from the hub/drum and
bearings. Bearings should be packed by machine or by hand methods to ensure that
grease is forced into the cavities between the rollers, cone and cage of the bearings.
7.
Use a high temperature, automotive type wheel bearing grease to repack your bearings.
Once bearings are greased properly you are now ready to reassemble the hub to the
axle.
Assembly
1.
Re-assemble the hub and brake assembly in the reverse order that it was
disassembled.
2.
When installing the bearings back into the hub, be sure to fully grease the bearings
themselves, the bearing races and the spindle shaft.
3.
Slowly spin the hub on the spindle while tightening the spindle nut to 50 ftlbs. Once
the finish torque is reached stop turning the hub. Loosen the spindle nut without
turning the hub. Torque the spindle nut to 25 in-lbs. (Note: torque spec is in Inch
pounds not foot pounds). If the hole in the spindle lines up with a castellation in the
nut, then install the cotter pin and bend the ends apart. If the hole does not line up
continue to torque the nut until the hole lines up with the next castellation – Spindle
nut torque should not exceed 45 in-lbs. (Note: torque spec is in Inch pounds not foot
pounds). Then insert the cotter pin and bend the ends apart.