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,
3_
If there is wire already installed in
the welder, roll it back onto the wire
spool by hand-turning the spool
counter-clockwise. Be careful not
to allow the wire to come out of the
rear end of the gun without holding
onto it or it will unspool itself. Put
the end of the wire into the hole on
the outside edge of the wire spool
and bend it over to hold the wire in
place. Remove the spool of wire
from the welder.
Loosen the drive roller setscrew
and pull the drive roller off the drive
shaft.
Note:
4_
The drive roller has two wire
size grooves built into it.. When
installing the drive roller the
number stamped on the drive
roller for the wire size you are
using should be facing away
from you. If you can read the
wire size you are using on the
drive roller, it is installed
backwards. Use only the
proper size drive roller when
using your welder_
Find the side of the drive roller that
is stamped with the same wire
diameter as that of the wire being
installed (see Figure 4, and if in
metric, see DESCRIPTtON)_ Make
certain the spacing wast_er is still on
the motor shaft and push the drive
roller onto the motor shaft, aligning
the setscrew with the flat side of the
drive shaft. Make sure the side
stamped with the desired wire
diameter is away from you
Drive Roller
Shaft
Spacing
Washer
5. Slide the roller onto the shaft so that
the groove in the roller lines up with
the inlet tube and the welding gun
liner. You can look at the alignment
from the top of the welder.
6 Tighten the setscrew, while holding
tlqe drive roller in place.
NEOPRENE DRIVE ROLLER
Change to the neoprene drive ro!ler
according to the following steps:
1 Remove the drive tension by
unscrewing the tension adjusting
screw (ALL THE WAY in a counter-
clockwise direction). The drive
tension screw will come loose,
allowing you to pull the drive
tension arm up away from the drive
roller Make sure to keep the screw
and the spring in place with the
drive tension arm
If there is wire already installed in
the welder, roll it back onto the wire
spool by hand-turning the spool
counter-clockwise_ Be careful not
to allow the wire to come out of the
rear end of the gun without holding
onto it or it will unspoot itself.. Put
the end of the wire into the hole on
flqe outside edge of the wire spool
and bend it over to hold the wire in
place, Remove the spool of wire
from the welder.
3 Loosen the setscrew in the
standard drive roller and remove it
and the spacing washer from the
drive shaft.
4 Do not use the spacing washer°
The spacing washer is for use with
the standard drive roller only. Save
the spacing washer with the
standard drive roller
While holding the side of the
neoprene drive roller that has the
setscrew toward you (see Figure 5),
push the neoprene drive roller onto
the motor shaft as far as it will go..
Align the setscrew with the flat side
of the drive shaft
Figure 4. Drive Roller
12
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