COATS HIT 9000, Truck Tire Changer - Manual (Page 8)

Wheel Clamping
The self-centering chuck is powered by the high pres-
sure hydraulic system to securely lock onto the wheel.
Important: The hydraulic pressure regulator knob,
located on the swinging pod front, should normally be
set to 1500 PSI. This pressure should be reduced when
mounting or demounting weak or light weight wheels.
1. Roll the wheel onto the platform with the drop
center (or the split ring) away from the chuck. Position
the valve stem between two of the jaw clamps so the
stem will not be damaged when the wheel is clamped.
2. Rotate the chuck until one of the jaw clamps is in
the 12 o'clock position.
3. Open the jaw clamps slightly larger than the open-
ing you are clamping, then move the jaw clamps up or
down to the approximate center of the wheel. Refer to
the wheel drawings on this page for suggested meth-
ods of clamping various types of wheels.
4. Lower the jaw clamps until you can position the
wheel on the top jaw clamp. Raise the chuck, which
will also raise the wheel off the platform.
5. Slowly retract the jaw clamps until the wheel falls
into the proper position for clamping. Clamp the wheel
by pulling the control lever toward you until the
hydraulic motor stalls. Release the handle and the
wheel is ready for mounting or demounting.
H.I.T. 9000
2 • COATS H.I.T. 9000 Changer