D-1
MAINTENANCE
D-1
MAINTENANCE
Removal, Installation and Trimming Instructions
for MAGNUM® Liners
NOTICE:
The variation in cable lengths prevents the
interchangeability of liners. Once a liner has been cut
for a particular gun, it should not be installed in anoth-
er gun, unless it can meet the liner cut off length
requirement. Liners are shipped with the jacket of the
liner extended the proper amount.
a.
Remove the gas nozzle and nozzle insulator.
Loosen the set screw located in the side of the
handle or in the diffuser with 5/64” (2.0mm) Allen
wrench (provided with the gun or Connector Kit).
b.
Remove the gas diffuser from gun.
c.
Lay gun and cable out straight on a flat surface.
For K613-1 K613-2, K613-5 and K613-6 connections:
Loosen set screw located in the brass cable con-
nector at the wire feeder end of the cable using
the same 5/64” (2.0mm) Allen wrench. Pull liner
out of cable. (Refer to Figure 1).
OR
For K613-3 and K613-4 connections:
Remove the connector cap. Remove gun tube
and tap on end of liner to expose liner bushing on
wire feeder end of cable. Pull liner out of cable. If
the liner is going to be replaced with a different
size liner, loosen set screw on the connector cap
and remove piece of liner material.
d.
For installation and trimming instructions for MAG-
NUM® liners, see Liner Installation and Trimming
Instructions.
Gun Tubes and Nozzles
a.
Replace worn contact tips as required.
b.
Remove spatter from inside of gas nozzle and
from tip after each 10 minutes of arc time or as
required.
c.
To remove gun tube from gun, loosen socket-
head clamping screw in handle with 3/16”
(4.8mm) Allen wrench. Remove coarse thread
nozzle and coarse thread insulator assembly.
Pull gun tube out from gun handle. To reinstall,
insert the gun tube, push in as far as possible,
and retighten screw.
GUN CABLES
Cable Cleaning
Clean cable liner after using approximately 300 lbs
(136 kg) of electrode. Remove the cable from the wire
feeder and lay it out straight on the floor. Remove the
contact tip from the gun. Using an air hose and only
partial pressure, gently blow out the cable liner from
the gas diffuser end.
Cable Repair
The MAGNUM® 550 guns feature the use of
repairable cable connectors. If the cable ever gets
severely damaged, it may be cut shorter and repaired
by the user. Repair cables as follows:
Gun Tube End Repair
(Requires 2 No. S19492-2
Terminals
a.
Remove the cable liner per Removal, Installation
and Trimming Instructions.
b.
Remove the gun tube per section entitled “Gun
Tubes and Nozzles”.
c.
Remove four #6 screws from the gun handle, sep-
arate the two halves, and remove the cable from
the handle along with the trigger assembly.
d.
Remove gun tube connector from cable by
unscrewing connector nut from gun tube connec-
tor. If the cable inner tube is difficult to remove
from the connector assembly, carefully slit it
lengthwise with a knife up to the brass connector.
MAGNUM® 550
ELECTRIC SHOCK
can kill.
• Have a qualified individual install
and service this equipment.
• Turn the input power for the power
source off at the fuse box or disconnect switch
before working on this equipment.
• Do not touch electrically hot parts such as out-
put terminals or internal wiring.
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WARNING
Excessive pressure at the start may cause the dirt
to form a plug.
Flex the cable over its entire length and again
blow out the cable. Repeat this procedure until no
further dirt comes out.
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CAUTION
Содержание MAGNUM 550
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