Blue Ox TC35270 - Manual (Page 6)

Page 6 of 7 292-6090 Rev. K 5/30/12
RV Straight Axle Alignment
With a TruCenter
There are three alignment settings that are adjustable with your RV.
Caster, Camber, and Tow In!
Caster will cause a pull right of left, but will not cause tire wear.
Camber will cause tire wear, but will not cause a pull.
Tow In will cause tire wear, but will not cause a pull.
Most customers think that if their coach doesn’t pull one way or the other it is aligned properly. Not so! There
are a lot of shops that only set the Tow In because they don’t have the equipment to bend, or shim the axle!
This will not fix the problem if the camber is out of spec. The axle will need to be bent.
These are the common practices to acquire proper alignment:
To adjust the caster you must install tapered shims between the axle and the spring or air bag support.
To adjust the camber you must bend the axle.
To adjust the Tow In you must loosen the tie rod ends and turn the tie rod in or out.
The TruCenter will not affect the alignment on any coach but it can make the alignment last longer as it will
absorb the shock when a chuck hole or a curb is hit. The TruCenter will not change the alignment.
Note to Alignment Technician concerning the Pre-alignment Procedure for the RV’s with TruCenter applica-
tion:
1. With a TruCenter on the RV the Alignment Technician should first make sure the TruCenter is centered.
2. Technician must remove the two small U-bolts that hold the TruCenter to the tie rod.
3. Strap the TruCenter up out of the way with zip ties.
4. Align the RV to spec.
5. Reinstall the TruCenter on the tie rod with the U-bolts.
6. The TruCenter will need to be centered. The Technician will need to adjust the TruCenter 35 inches
center to center between the two large ¾ inch bolts. Have someone in the RV turn steering wheel while the
Technician measures the required 35 inches. When the measurement is confirmed, press the TruCenter control
button in the RV and then release the button.
7. Loosen the U-bolts from the TruCenter so that it can slide on the tie rod.
8. Steer the front wheels so they are straight forward and reinstall the TruCenter on the tie rod with the U-
bolts.
CAUTION:
The TruCenter must be centered at 35 inches between the two ¾ inch bolts. Failure to do this could
cause an accident, injury or death.