9/9/2021
SWA-48-PMO MANUAL
Copyright 2019 Vestil Manufacturing Corp.; All rights reserved Page 5 of 17
Adjusting Belt Tension:
Operation
Ensure that all employees involved in the operation and care of this machine fully understand and consistently
apply these instructions.
The standard model SWA-48 is suitable for moderate-duty, intermittent cycling with a 4,000 pound load. It is intended to
be used indoors in industrial and commercial locations to apply stretch-wrap material at between three and twelve
revolutions per minute (RPM) in a clockwise rotation around palletized, stable, non-hazardous loads. The maximum
diameter (or diagonal, measured corner-to-corner) load size for the SWA-48 is 76”, the maximum load height is 78”.
Always ensure that the load is centered on the turntable.
The material mast can utilize stretch-wrap material rolls in lengths from 10” to 20” — spacer tubes stored on the material
rod allow for the use of several material roll lengths below 20”. The SWA will generally be capable of achieving stretch-
wrap material stretch rates of 150-200%.
Loading:
•
Verify that no part of the load is overhanging below the turntable. A damaged skid with a
dragging board or an overhanging load that sags below the turntable can cause the entire load to
shift suddenly if it catches on the frame.
•
Do not exceed the machine’s load ratings. Damage or premature failure to the drive system or its
components could result from exceeding the listed capacity. Place loads onto the turntable
slowly and gently using a pallet truck or walk-behind fork lift, using an optional approach ramp, or
with a fork truck.
•
Do not drop loads onto the turntable. Even a two-inch drop onto the turntable creates a shock
load on the load bearings that will result in their premature failure.
•
See the installation page in this manual for instructions on how to install a roll of stretch-wrap
material onto the mast carriage.
The load rating, in pounds, is shown on the machine data plate located on the frame near the gear reducer mounting
bracket. It indicates the net capacity of the turntable with a load that is centered and evenly distributed.
Note: The addition of any ancillary equipment to the turntable, such as a conveyor, must be taken into account when
determining the net load applied to the turntable.
1
Numbers in the diagram to the left
correspond to the procedure numbers
below.
1. Loosen all 4 bolts which hold the gear
reducer to its mounting bracket.
2. Loosen the mounting bolts and slide the
bracket to the left.
3. Retighten the bolts loosened in step 1.
4. Loosen the jam nuts.
5. Turn the screws clockwise to increase
belt tension (CCW to reduce tension).
6. Retighten the jam nuts (4) and mounting
bolts (2).
2
2
2
4
5
5
