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OM-228 042 Page 35
8-8. Replacing Switch And/Or Head Tube
Ref. ST-800 795-C
Tools Needed:
19 mm
1
3
2
4
5
6
Turn off welding power
source/wire feeder and dis-
connect gun.
1 Handle Locking Nut
2 Switch Housing
3 Handle
4 Vise
5 Head Tube
6 Jam Nut
Remove handle locking nut.
Remove switch housing. Install
new switch and connect leads (po-
larity is not important). Reassemble
in reverse order.
Secure head tube in vise.
Loosen jam nut. Remove from vise
and turn head tube out by hand.
Hand tighten head tube into cable
connector. Place head tube in vise
and tighten until nuts are tight.
Remove from vise. Reposition han-
dle and install switch housing. Se-
cure with handle locking nut.