BAND-IT S35099 Automatic Air Tool - Manual (Page 13)

BAND-IT-IDEX, Inc.
A Unit of IDEX Corporation
4799 Dahlia Street
Denver, CO 80216-0307 USA
P: 1-800-525-0758
F: 1-800-624-3925 Document # S41067 rev. H
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BAND-IT-IDEX, Inc. 2010
All rights reserved
www.BAND-IT-IDEX.com
Page 13 of 34
S35099
Automatic Air Tool
ADJUSTMENT OF CLAMP PULL PRESSURE
This adjustment will be required for different materials and construction of the items being clamped.
A convenient chart summarizing the maximum pressures to use for the most commonly used Band-It
clamps is located on the lower right front panel (Fig. 1). Note that this chart shows the maximum
pressure to be used. Pulling clamps to pressures higher than recommended may result in clamp
breakage or improper clamp locking caused by excessive stretching of the clamp band. It is likely
that a pressure setting slightly below this maximum will be satisfactory.
Some testing, by assembling clamps on a test specimen of the item being clamped, may be useful to
determine the desirable pressure setting. To adjust the pressure, locate the clamp pull pressure knob
(Fig. 1) on the front panel. Adjustment is made by a knurled knob secured with a lock ring. Pull the
lock ring out toward the knob so it can be turned. Turn the knob clockwise to increase the pressure
setting; counter-clockwise to decrease the pressure setting. The pressure to which the tool is set is
shown on the gauge beside the knob (Fig. 1). To check the pressure to which the tool is set, cycle
the tool and observe the maximum pressure reading shown on the gauge when the piston is all the
way in. Note that this pressure must be read during the pull cycle only. When the desired pressure is
obtained, push the lock ring in and the knob is locked. Note: It is important to adjust so the pressure
observed on the gauge is regulated to the desired pressure by the time the tool cycles and not
attempt to set the pressure so that it is changing rapidly and merely "passing through" the desired
pressure at the time the tool operates.
The latter condition can result in wide variations of pull pressure as the air pressure fluctuates.
ADJUSTMENT OF CLAMP HOLD PRESSURE
The pressure in the clamp pull cylinder must be reduced to allow the tool to lock the clamp after
pulling and to satisfactorily cut off the clamp tail. This pressure is adjusted by the knurled knob on the
left front panel (Fig. 1). The pressure to which the tool is set is shown on the gauge beside the knob
(Fig. 1). Note that during this cycle, the pressure drops rapidly. The tool must be set so the desired
pressure is shown at the instant the cut-off cylinder moves the cam out to lock the clamp and cut off
the tail. To adjust this pressure, pull the lock ring out and turn the knob clockwise to increase the
pressure; counter-clockwise to decrease the pressure.
A convenient chart summarizing the recommended pressures to use for the most common sizes of
Band-It clamps is located on the lower left front panel. Note that this chart shows only recommended
pressure settings; operation outside these pressure settings will possibly result in poor locks on the
clamps, breaking of the clamp band (pressure too high), or difficulty in cutting off the tail (pressure too
low). The tool should be cycled to check the pressure setting of the tool. When satisfactory, push the
lock ring in to secure the adjustment knob. Note: It is important that the pressure be adjusted so the
pressure is regulated to the desired holding pressure at the time the cut-off cylinder actuates and not
attempt to adjust the tool so the pressure is changing rapidly at the time the cylinder actuates. This
will result in consistent holding pressures.
The tool is ready for Band-It Jr. clamps.
Operating
Instructions