User's Manual

33
Date of Origin – 02/01/08
LIFTABLE, REGULATED AXLE
For trailers equipped with a Liftable, Regulated axle, the air controls are on the roadside near the
suspension of your trailer. This box contains a 160 p.s.i. regulator along with a locking detent lift
control valve, and a manually adjustable regulator knob. The regulator is adjusted manually to
control the pressure of the lift axle ride bags.
To control the load on your lift axle, with the trailer loaded, pull the regulator knob and turn to the
desired pressure. This can be accomplished by placing the lift axle on a scale while the adjust-
ment is taking place. Once the desired load is on the axle, push in the knob to lock the adjustment
in place.
To
lift or lower the axle, rotate the locking detent lift control on the valve counterclockwise Y4 turn to
a horizontal position to lift and then back clockwise Y4 turn to a vertical position to lower the axle.
The lift axle is considered a ‘pushing axle’ and it is very important to always lift the axle when the
trailer is empty and lower the axle when
the trailer is loaded.
If the axle were to be connected to electrical power, the lift has a personal safety feature that will
allow the axle to lift when the power is disrupted.
NOTE: Loading the axle should never exceed the wheel, tire, or axle rating.
Locking Dentent
Lift Control
Manually
Adjustable
Regulator