34
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
pressure limiter is essential to safe operation of the machine.
(See Fig. 17.8)
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 (gauge should read 0). Use a certified tank
with at least 250 PSI pressure rating. (See Fig. 17.9)
3. Depress inflation pedal to position one 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.
6. Repeat steps 1-6. Re-adjust 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. Disconnect
inflation hose, and release air inside tank. (See Fig. 17.10)
For additional copies
or further information, contact:
BendPak Inc. / Ranger Products
1645 Lemonwood Dr.,
Santa Paula, CA. 93060
1-805-933-9970
www.bendpak.com
Fig. 17.10
THE PRESSURE LIMITER IS PRE-SET AT THE
FACTORY AND SHOULD NEED NO ADJUSTMENT.
ADJUST ONLY IF PRESSURE EXCEEDS 60
PSI. Operating a tire changer with a defective,
improperly adjusted, or by-passed pressure limiter
could result in a tire explosion with severe injury
or death to the 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. A tire explosion may cause personal injury
or death to operator or bystanders.
Fig. 17.9
Fig. 17.8
