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Rev. F, December 2020
2 General Safety Information
The DEMTECH Services, Inc. Pro-Wedge VM-20 Wedge Welder, hereinafter referred to
as the Pro-Wedge or welder, is a high temperature and voltage piece of equipment. Always
disconnect the power source before performing any service and/or maintenance procedures
on the welder. Never lift, pull or carry the welder by the power cord or electrical
connection. Always maintain slack in any extension cords connected to the welder while
in operation to avoid damage to the power connections. At all times while operating the
welder keep hands, fingers and other body parts well clear of the heating element and
related mounting components. Always use the Pro-Wedge in a well-ventilated area when
welding materials such as PVC which can produce toxic fumes. Do not inhale toxic fumes
when present. Do not operate near flammable materials of any kind. Do not apply
flammable materials, including liquids, to seam area. Allow welder to cool to room
temperature, at least 15 minutes, before returning to the shipping/storage case. Protect
welder from exposure to rain or standing water. Never attempt to weld in standing water.
2.1
Intended Use
For additional product information please refer to the product data sheet located in
Appendix C of this manual.
The Pro-Wedge has been manufactured according to the latest technology and current
safety regulations. However, improper use or abuse may lead to hazardous conditions
for the user or third party or damage to the unit.
Always have this manual handy at the location where the Pro-Wedge is being used so that
it can be referred to quickly and easily.
The technician assigned to operate this welder must have read through and become
familiar with this manual before starting work, particularly the section on safety.
Do not make changes or modifications to the Pro-Wedge relative to safety without
contacting the manufacturer for advice.
2.2
Maintenance
Maintenance, inspection and adjustment of the Pro-Wedge may only be carried out by
qualified personnel. Before removing or installing spare parts or performing other repair
operations to the Pro-Wedge, consult the manufacturer for advice on proper procedures.
This will help insure a safe and successful outcome. Always make sure all screw
connections are tight before attempting to operate the unit after maintenance or repair.
Also make sure all covers, guards, and other safety devices have been reinstalled before
use.
Pro-Wedge VM-20 Operator's Manual
Page 3
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