ULTRAFEED VAF-4
2-2 INTRODUCTION Manual 0-5332
2.04 Description
The Ultrafeed VAF-4 offers both load and line voltage
compensation helping to maintain a constant wire feed
speed, even with changes in the input voltage and/or load.
The Ultrafeed VAF-4’s sheet metal box totally encloses the
solid state control circuitry. A hinged, latched feedhead
cover allows quick and easy access to the feedhead fea-
turing quick change feed rolls, and tool-less knobs and
clamps for changeover of guides and guns.
The Ultrafeed VAF-4 comes with an abundance of standard
features including:
• on/off rocker switch
• 2 circuit breakers for total system protection
• wire feed speed control
• power source voltage control
• inch switch
• gas purge switch
• 2T/ 4T/ Spot selector switch
• PC board adjustments for enhanced run in control
• solid state electronic brake for dynamic braking
• 2 quick change, gear-driven feed rolls
• gas valve solenoid
• 2 isolated gun trigger receptacles for operator safety
• variety of add-on options to configure the unit for
any wire-welding situation.
The Ultrafeed VAF-4 has been designed to comply with
IEC 60974-5, CSA E60974-5 and ANSI/IEC 60974-5
standards.
The instructions in the next section detail how to cor-
rectly and safely set up the machine and give guidelines
on gaining the best efficiency and quality from the Power
Source. Please read these instructions thoroughly before
using the unit.
2.05 User Responsibility
This equipment will perform as per the information con-
tained herein when installed, operated, maintained and
repaired in accordance with the instructions provided.
This equipment must be checked periodically. Defective
equipment (including welding leads) should not be used.
Parts that are broken, missing, plainly worn, distorted or
contaminated, should be replaced immediately. Should
such repairs or replacements become necessary, it is
recommended that such repairs be carried out by appro-
priately qualified persons approved by Tweco. Advice in
this regard can be obtained by contacting an Accredited
Tweco Distributor.
This equipment or any of its parts should not be altered
from standard specification without prior written approval
of Tweco. The user of this equipment shall have the sole
responsibility for any malfunction which results from
improper use or unauthorized modification from standard
specification, faulty maintenance, damage or improper re-
pair by anyone other than appropriately qualified persons
approved by Tweco.
2.06 Transportation Methods
!
WARNING
ELECTRIC SHOCK can kill. DO NOT TOUCH live
electrical parts. Disconnect wire feeder from
Power Source before moving the wire feeder.
!
WARNING
FALLING EQUIPMENT can cause serious per-
sonal injury and equipment damage.
Lift unit with integrated handle at the top of the unit.
Use handcart or similar device of adequate capacity.
If using a fork lift vehicle, place and secure unit on a proper
skid before transporting.
2.07 Packaged Items
Ultrafeed VAF-4 Wirefeeder (Part No.: W3400002)
• Ultrafeed VAF-4 Wirefeeder
• Control cable, 6ft, 19 pin, 374878-006
• Power cable, 6ft, 70 mm
2
male -70 mm
2
female
• Operating Manual
• CD
• Drive rolls .035"/.045" (0.9mm/1.2mm) V- groove
fitted
• Handle Assembly
