5 OPERATION
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© ESAB AB 2018
5.11
Removing/installing wire-feed rollers
WARNING!
Power should be turned off for this procedure.
NOTE!
Gas does not need to be connected for this procedure.
Two different-size pairs of dual-groove feed-rollers is supplied as standard (Listed in
Appendix as “DEFAULT” and as “ACCESSORY”). Change the feed rollers to match the wire
size/type on the wire bobbin. See "ROLLER & WIRE-GUIDE SELECTION" section in
Appendix for feed roller selection.
5.11.1
Removing wire-feed rollers
1.
If new rollers are being installed select the correct size and type (steel or aluminum)
for wire being installed.
2.
Disconnect the electrical power source from the unit.
3.
Open the door on the wire-bobbin side of the EMP unit.
4.
Release the tensioning arm by pulling it up out of its detent and rotating it toward you,
(see Figure 5). Since the wire-feed pressure must be disturbed to release this arm, the
tension on the rollers will have to be re-adjusted in a later step. The tensioning arm (2)
is spring-loaded. It will pop-up when the tension knob in the previous step is rotated
out-of-the-way.
5.
Remove the wire from the wire-feed mechanism.
CAUTION!
When removing the drive roller (roller located on left side) be careful
not
to
remove the drive gear with it. Doing so risks losing the small woodruff key on
the motor shaft. Failure to comply will render the entire unit useless until this
part is replaced.
6.
Remove the two wire-feed rollers by removing their retaining screws and washers and
then sliding each roller from its shaft (see Figure 7).
