Tweco VA 2000 Ultra-Feed - Manual (Page 39)

ULTRAFEED VA 2000
February 27, 2006 5-1
SECTION 5:
SERVICE
5.01 Cleaning The Unit
Periodically, clean the inside of the wire feeder and feedhead
assembly by using a vacuum cleaner or clean, dry,
compressed air of not more than 25 psi/172 kPa/1.72 bar
pressure. After cleaning the unit, check all electrical
components for loose or faulty connections and correct if
necessary.
5.02 Cleaning The Feed Rolls
Clean the grooves on the lower drive roll frequently. This
cleaning operation can be done by using a small wire
brush. Also, wipe off or clean the grooves on the upper
bearing roll. After cleaning the feed rolls, tighten the feed
roll retaining knobs accordingly.
5.03 System Maintenance
The user has been given a visual tool in the feed monitor
display. Use the feed monitor display in determining when
a new contact tip, liner, and/or wire guide is needed.
5.04 Troubleshooting Guide
NOTE
Refer to the Connection Diagram and the
Schematic Diagram in the Appendix chapter
of this manual for graphical assistance in
disassembling and troubleshooting the wire
feeder.
Scope
The troubleshooting guide is intended to be used by
qualified service technicians. The troubleshooting guide
contains information which can be used to diagnose and
correct unsatisfactory operation or failure of the various
components of the wire feeder. Each symptom of trouble
is followed by a list of probable causes and the procedure
necessary to correct the problem.
Safety
To ensure safe operation and service, read this entire
manual before attempting to service or repair this
machine. The service technician may be asked to check
voltage levels while the machine is turned ON. To assure
safety, use care and follow all instructions accordingly.