Product Manual
33
Inflation Pedal Pressure Limiter
Maintenance
The Inflation Pedal pressure limiter helps prevent inflation
of standard size or larger tires or tubes beyond 60 PSI to
minimize risk of explosion. This device is for the safety of
the operator and bystanders. Proper operation of the pres-
sure limiter is essential to safe operation of the machine.
(See Fig 15.9)
Check operation of the pressure limiter as follows at least
once a month:
1. Remove tires and/or wheels from the machine.
2. Connect the Inflation Hose to an empty service tank with
a pressure gauge (the gauge should read 0). Use a certified
tank with at least 250 PSI pressure rating. (See Fig 15.10)
3. Depress Inflation Pedal to start air flow through the
hose and into the tank. Maintain a steady pressure for
constant flow.
4. Watch the rising pressure on the tank gauge and the
gauge on the machine. As tank pressure reaches 60 PSI,
the pressure limiter should stop the air flow automatically.
Both gauges should read 60 PSI ± 5 PSI.
5. If the pressure exceeds 60 PSI, adjust the knob on
the regulator by lifting the locking cover and turning
COUNTERCLOCKWISE. After adjustment is made, secure
cover in the locked position. (See Fig 15.11)
6. Repeat steps 1-6. Readjust if necessary.
7. After pressure limit has been set, check the manual
release valve function by pressing the button and releasing
pressure from the tank until it reaches 50 PSI. Release air
inside tank and disconnect Inflation Hose. (See Fig 15.12)
THE INFLATION PRESSURE LIMITER IS PRESET
AT THE FACTORY AND SHOULD NEED NO
ADJUSTMENT. MODIFY ONLY IF PRESSURE
EXCEEDS 60 PSI. OPERATING A TIRE CHANGER
WITH A DEFECTIVE,IMPROPERLY ADJUSTED, OR
BYPASSED PRESSURE LIMITER COULD RESULT IN A
TIRE EXPLOSION WITH SEVERE INJURY OR DEATH
TO OPERATOR OR BYSTANDERS. ALWAYS BE SURE
THAT THE PRESSURE LIMITER IS OPERATING
PROPERLY ON THE MACHINE AT ALL TIMES.
PRESSURE LIMITER IS SET AT 60 PSI. ANY
REQUIRED INFLATION ABOVE 60 PSI SHOULD BE
PERFORMED IN AN INFLATION CHAMBER/SAFETY
CAGE.
Fig 15.9
Inflation Pedal
Pressure Limiter
Assist Tower
Pressure Limiter
Note: Side Panel Removed
Fig 15.10
Fig 15.11
Pressure Limiter
Adjustment Knob