Tweco A 2000 Ultra-Feed - Manual (Page 33)

ULTRAFEED A 2000
May 1, 2006 5-3
FAULT CAUSE REMEDY
1. Power is not on.
a. Check the power supply and wire feeder ON/Off
switches and make sure they are ON.
b. Check the input power to the power supply.
2. No connection or
loose connection
between the power
supply and the wire
feeder.
a. Connect the 19 pin power source control cable
to the power supply and wire feeder Amphenol
connectors.
b. With the power source turned ON, check for 120
VAC at power source amphenol pins E and F.
(Refer to the power source owner’s manual).
c. Check continuity of pins E and F of the 19 pin
power source control cable. Replace the cable
as needed.
d. Check connections on the power switch of the
wire feeder for loose or faulty connections.
Replace or repair as needed.
3. Circuit breaker on the
wire feeder is tripped.
a. With the power turned off, check all cables for
defects, loose or worn connections. Change or
replace as needed. Allow cool down time before
resetting the breaker.
b. Check wire size and guides for proper application
and control settings. Allow cool down time before
resetting the breaker.
1. Too little or too much
feed roll pressure. a. Increase or decrease feed roll pressure
as needed.
2. Incorrect feed roll
size.
a. Check size stamped on outside of the feedroll.
(Visible when installed). Wire size must match
roll size.
3. Wire spool tension is
too great.
a. Decrease the wire spool tension
4. Restriction in gun
or tip
a. Check tip for wear and proper size. Replace as
needed.
b. Check gun cable for kinks or wear. Replace as
needed.
C. Check for swarf build up. Clean out gun cable as
needed.
A. Unit is completely
inoperative -
nothing functions
B. Wire feed motor
operates but wire
does not feed or
feeds erratically
Table 5-1a: Trouble Shooting