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Several drops of lubricator oil added to the inlet of the air motor or into the air line each day will
help insure good operation. A noticeable reduction of air motor performance can usually be
corrected by squirting a few drops of oil into the air line.
STRAP TENSION
Strap tension is controlled by turning the
adjustment screw (Key 47 on the Air Motor
Assembly) in 1/4 increment turns counter-
clockwise using a 3/32" hex wrench to reduce
strap tension and clockwise to increase strap
tension.
NOTE: Operating air pressure must be set
between 85 and 90 psi (5.7-6.2 Bar). With
accurately controlled air pressure the tension
will be uniform on all straps, provided the
operator allows the air motor to stall.
The VXT2-16 tool is factory tested to ensure that at least 400 lbs. (1776N) of tension is drawn at
90 psig (6.2 Bar). The VXT2-19 tool is factory tested to ensure that at least 600 lbs. (2664N) of
tension is drawn at 90 psig (6.2 Bar).
Strap can break if inlet air pressure to tool exceeds 90 psig (6.2 bar).
AIR CONSUMPTION
Air consumption in cubic feet per minute (cfm) for the VXT2 can be calculated as follows: cfm =
(a) x (b) x (0.37)
a = Number of straps applied per minute.
b = Number of seconds motor is on per strap during tensioning, from start to deceleration
to stall including stall time while making joint.
0.37 = VXT2 efficiency ratio.
Example Calculation: Peak strapping load is 4 straps/min. so a = 4
Air pressure is assumed to be 90 psig (6.2 Bar) with recommended size and length of air hose.
Volume of air is at room temperature and sea level pressure, or so-called "free air" conditions.
For more detailed information about air supply systems refer to Signode manual Part No. 186038.
Strap breakage hazard.
Strap breakage can result in severe personal injury.
Maximum operating air pressure is 90 psig (6.2 bar).
Air motor is on 5 seconds/strap, so b = 5
VXT2 efficiency ratio is 0.37
6
(a)x(b)x(0.37)
4x5x0.37=7.4 cubic ft/min.
4x5x0.62=12.4 cubic meters/hr. (12.4M
3
/hr.)
7
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