Rev. 9/19/2018
SWA, MANUAL
c. Using a “pencil type” compression spring scale, measure the force required to push the
rod
1
/
8
in., that is, the force required to move the rod inwardly so that the second mark is
d. If necessary, adjust the tension of the belt. If the belt is new, the force measured by the
spring scale should equal 16 lbs. After a belt is broken in, the force required should be
between 8-12 lbs. To adjust belt tension, use a
3
/
16
in. Allen wrench to turn the
. To increase tension, turn the screws clockwise. To decrease tension, turn the screws
counterclockwise. Turn both set screws the same amount.
•
When belt tension is proper, retighten the jamb nuts on both set screws firmly against the bracket
tabs; then reinstall the end guard and tighten all four of the motor
2. Adjust the tension of the lower (large) belt.
•
Loosen all 4 power unit subassembly bolts (A). [NOTE: Only 2 bolts are shown in the diagram; the
other bolts are on the opposite side of the subassembly.]
a. Locate the
; then insert a metal rod approximately 3/8” x 10” long, into
the access opening. The rod must have a smooth, flat end without sharp projections that
might damage the belt.
b. Locate the belt with the end of the rod. Lightly contact the belt at the point approximately
halfway between the two pulleys. The rod should be perpendicular to the belt. Do not
press the rod against the belt. Make a first mark on the rod that is flush with the top of the
access opening (D). Make a second mark
3
/
8
in. above the first mark.
c. Using a “pencil type” compression spring scale, measure the force required to push the
rod
3
/
8
in., that is, the force required to move the rod inwardly so that the second mark is
flush with the top of the opening (D).
d. If necessary, adjust the tension of the belt. If the belt is new, the force measured by the
spring scale should equal 16 lbs. After a belt is broken in, the force required should be
between 8-12 lbs. To increase tension, use a
9
/
16
in. wrench to turn the lock nut on
clockwise. To decrease tension, turn the nut counterclockwise.
•
When belt tension is proper, retighten the lock nut firmly against the carriage bolt tab; then tighten
power unit subassembly bolts (A)
Use Instructions
Standard SWA-50 and -70 wrapping machines must be used indoors. They are designed for moderate
duty, intermittent cycling and will wrap loads weighing up to 4,000 pounds (1,818.2kg). The net weight of
the pallet or skid and the items stacked on the pallet must not exceed 4,000 pounds. The load rating
appears on Label 287, which is affixed to the machine as shown in the
Place a load on the turntable
DO NOT drop loads onto the turntable, because shock loading will cause the load bearings
to fail prematurely. DO NOT exceed the load rating; the drive system might be damaged or fail
prematurely.
To protect the load bearings, be careful when loading the turntable and
slowly
apply loads to the
turntable. In particular, take care to not drop items on the table or to slam the tines of your fork lift on it.
Wrap the load
Standard model wrapping machines are equipped with a constant-pressure (dead man style) foot pedal
control. As long as the pedal is pressed, the table will rotate. When the pedal is released, the turntable
will coast to a stop.
Turntable rotation speed is adjustable. To increase or decrease the speed, turn the knob on the Delta
controller (see p. 11) clockwise or counterclockwise, respectively. The number displayed on the screen of
the control is the approximate number of revolutions per minute.
Copyright 2018 Vestil Manufacturing Corp.
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