COATS APX Rim Clamp Tire Changer - Manual (Page 15)

Important: Always read and follow the operating instructions. • 11
Use of bead sealing jets without a tire in
place can cause dirt and debris to be blown
into the air with enough force to injure
operator and/or bystander. Do not use the
bead sealing control position to inflate a
tire.
R. This unit is equipped with a pressure limiter
to assist the operator with proper tire inflation.
When the inflation pedal is held in position 2,
the pressure limiter cycles the machine
between position 2 (inflation) and position 1 (at
rest, no airflow to tire). This cycling helps to
prevent over inflation of the tire. Tires can still
be over inflated and explode with the use of
this pressure limiter if all of the instructions in
this manual are not followed completely. The
pressure limiter will keep most car and light
truck tires from inflating beyond 60 PSI
(smaller tires may reach higher pressures). It is
the operator's responsibility to follow all
instructions and to control inflation pressure as
specified in these instructions. Check the
function of the pressure limiter regularly and
maintain it according to the instructions pro-
vided in this manual for safe and proper oper-
ation. Do not tamper with or attempt to adjust
the pressure limiter. Tires requiring inflation
beyond 60 PSI should be inflated in a safety
cage.
Bead Sealing
1. Position valve stem in front of operator and con-
nect the inflation hose with the clip-on chuck. Hold tire
up against upper edge of the wheel. Be sure tire's top
bead does not cover the bottom of the valve stem (fig-
ure 23).
Figure 23 - Lift Tire Upwards for Bead Sealing
2. Depress inflation pedal to position 2 and hold
about one second to begin air flow through tire valve,
then depress pedal to position 3 and hold briefly — less
than one full second. The blast of air from the jets will
expand tire and seal the beads.
3. Release the inflation pedal and allow it to return to
position 1. Verify that both beads are completely
sealed to the wheel. Repeat these steps if beads have
not sealed. It may be necessary to wait a few seconds
for the air storage tank pressure to recover before
attempting again.
S. If tire and wheel are properly lubricated and
operator cannot achieve bead seal after three
or four attempts, the valve core may be
removed from the valve stem to allow more air
flow into the tire to assist with bead seal. After
bead seal is achieved, remove the clip-on
chuck and reinstall the valve core. Reattach
the clip-on chuck after core is installed.