7.Take gun handle halves apart by remov- ing five phillips head screws.

8.Remove liner from fast coupler fitting on gas valve. Depress lip on fast coupler back towards fitting and pull liner out.

9.Remove liner from outer torch sleeve and pull out.

10.Remove fast coupler fitting from gas valve.

11.

Install new liner,

starting

from

handle end

 

and feeding towards unit with fitting end

 

of I_ner going towards the gas valve.

12.

Fitllner

for length

at

feeder end by cut-

 

ting liner with wire cutters.

 

13.

Reinstall

liner holding

clamp

at feeder.

14.

Return

all components

to

the

handle

Nozzle

Contact Tip

Gas Diffuser

Conductor Tube

Jbe

Insulation

Trigg.

casing and realign them as they were

originally.

15. With both halves of the handle case in

place, tighten the five phillips head screws.

16.Reinstall the welding wire according to specifications in INSTALL THE WELDING WIRE section.

17.Close side panel.

18.Plug welder into power supply and turn POWER SWITCH to ON position.

Live Wire

Switch Contacts

Gun

Liner

Handle

Casing

Gas Hose

Drive

Drive

Gun

Tension

Tension

Assembly

Adjustment

Arm

(Tail

®

 

 

 

Inlet

 

 

Strain

Guide

Drive

Jn

Relief

Tube

Roller

Liner

Clamp

Figure

21. Drive

Assembly

 

SwitchSwitch

WireWire

Gun

Cable

Figure 22. Gun Assembly

PREVENTIVE MAINTENANCE

Except for internal and external cleaning,

cleaning the nozzle, and occasionally

retightening screws, there is no periodic maintenance recommended for your welder.

TROUBLESHOOTING

The following TROUBLESHOOTING information is provided as a guide to help resolve some of the more common problems that could be encountered. Table 4 is a troubleshooting table provided to help you determine a possible remedy when you are having a problem with your welder. This table does not provide all possible solutions, only those possibilities considered to likely be common faults. The table consists of a TROUBLE or symptom, a POSSIBLE CAUSE for the symptom, and a POSSIBLE REMEDY for that symptom.

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Craftsman 196.20569 owner manual Preventive Maintenance, Cleaning the nozzle, and occasionally, Troubleshooting