Removing/Replacing Torch Head & Switch From Service Line - ESAB PT-27 Manuel D'instruction

sEctIoN 4
4.3 removing / replacing torch head and switch from service line
WarNINg
1
Switch leads
2
Remove tape securing the jacket and control wires.
(note how switch leads are coiled around power
cable and the loop in the pilot arc lead. Reassemble
in like manner). See figure 4-3 for reassembling pilot
arc lead.
figure 4-2. removal of torch head and switch from service line
BE surE to tIghtEN poWEr caBlE coNNEctIoNs sEcurElY us-
INg 2 WrENchEs DurINg rEassEMBlY. (factorY rEcoMMENDED
torquE Is 3.39 N-M or 30 IN-lBs). faIlurE to Do so coulD rE-
sult IN sErIous INjurY to thE opErator.
Push flex support
back from handle
Cable bundle Assembly
Vinyl tape
Snap switch band from handle and release
switch, no further disassembly is required
for switch replacement. (see figure 4-5 for
switch replacement)
Strip Insulator
jacket rolled back
black Pilot Arc lead
3
Power Cable
Torch Head-
unscrew handle, remove tape that secures both strip
and tube insulators. Remove head from power cable.
(use two wrenches, see warning above)
Knife connection
Tube Insulator
78
MaINtENaNcE
Handle
Tube Insulator
Two wrenches (3/8" & 7/16")
Cable bundle Assembly
Handle
Pull black pilot arc lead out from tube
insulator to expose knife connections.
Open knife connections. Slide handle
and tube insulator from service line to
complete the disassembly. (see figure
4-3 for reassembling the pilot arc lead
and insulators)