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Install new contact tube.
5.
Reinstall the nozzle and extension if applicable.
6.
Reconnect air supply to flux tank.
7.
Resume operation.
5-5.
CHANGING WIRE SIZE (Figure 5-1)
WARNING: ELECTRIC SHOCK can kill; FLY-
ING FLUX PARTICLES can puncture eyes
and skin; WELDING WIRE can cause punc-
ture wounds.
•
Do not touch live electrical parts.
•
Shut down welding power source and wire
feeder and be sure they cannot be accidental-
ly
energized
components.
•
Close air valve, bleed pressure from tank,
and disconnect air supply.
•
Do not point gun toward any part of the body,
any conductive surface, or other personnel.
To change the size of the electrode wire, the only gun
part necessary to change is the contact tube. It may be
necessary to change the wire feeder inlet wire guide –
see wire feeder Owner's manual for information.
IMPORTANT: Whenever the electrode wire size is
changed, blow out both the monocoil liner and monocoil
casing with compressed air.
1.
Remove the nozzle and extension if applicable.
6-1.
GENERAL
WARNING: ELECTRIC SHOCK can kill; FLY-
ING FLUX PARTICLES can puncture eyes
and skin; WELDING WIRE can cause punc-
ture wounds.
•
Do not touch live electrical parts.
•
Shut down welding power source and wire
feeder and be sure they cannot be acciden-
tally energized before inspecting, maintain-
ing, or servicing gun.
•
Close air valve, bleed pressure from tank,
and disconnect air supply.
•
Do not point gun toward any part of the body,
any conductive surface, or other personnel.
before
working
on
SECTION 6 – TROUBLESHOOTING
2.
Cut off any portion of the electrode wire which ex-
tends beyond the end of the contact tube.
3.
Remove the contact tube.
4.
Retract remaining electrode wire onto wire spool.
CAUTION: FLYING DIRT AND METAL PAR-
TICLES can injure personnel and damage
equipment.
•
Point gun liner only in a safe direction away
from personnel and equipment when clean-
ing with compressed air.
5.
Blow out gun casing or liner with compressed air
whenever the wire or liner is removed.
gun
6.
Install the appropriate contact tube.
7.
Reinstall the nozzle and extension if applicable.
8.
Make necessary changes to wire feeder to ac-
commodate new wire size.
9.
Thread new size electrode wire (see wire feeder
Owner's Manual).
10.
Reconnect air supply to flux tank.
11.
Resume operation.
5-6.
REGULATOR MAINTENANCE
The dryer contains silica desiccant to dry excess mois-
ture coming from the filter regulator. Check the color
code located on the metal bowl for the condition of the
desiccant. Replace when necessary.
Troubleshooting to be performed only by qualified
persons.
It is assumed that the unit was properly installed accord-
ing to Section 3 of this manual, the operator is familiar
with function of controls, the unit was working properly,
and that the trouble is not related to the welding process.
The following chart is designed to diagnose and provide
remedies for some of the troubles that may develop in
this unit.
Use this chart while performing troubleshooting proce-
dures. If the trouble is not remedied after performing
these procedures, the nearest Factory Authorized Ser-
vice Station/Service Distributor should be contacted. In
all cases of equipment malfunction, the manufacturer's
recommendations should be strictly followed.
OM-1542 Page 7