6
MAINTENANCE INSTRUCTIONS
For all repairs other than those covered below,
send the apparatus to your welding equipment
distributor or to ESAB Remanufacturing Center,
Ebenezer Road, Florence, SC 29501. Improperly
repaired apparatus is hazardous.
Torch Valves: Leakage around either throttle valve
can usually be corrected by tightening the packing nut
slightly. If it cannot be corrected, replace throttle valve
assembly.
If either valve fails to shut off completely, remove the
throttle valve assembly from torch and wipe the ball
seat on the end of the stem with a clean cloth. Then
reinstall the valve and tighten it heavily several times. If
this does not eliminate leakage, try a new throttle valve
assembly. If then the valve does not shut off completely,
send the torch handle to a repair station for reseating of
the body.
Tip Cleaning: If a welding tip produces a distorted,
irregular flame, clean the tip with an OXWELD tip
cleaner, or the correct size twist drill (see table on page
4). Do not attempt to clean with any other type of tool.
When using cleaning drills, push the drill straight in and
out; do not twist.
Injector Cleaning: The relative small central oxygen
orifice in an injector may become partially clogged with
small particles conveyed in the oxygen stream or
carbon particles produced by backfires. To clean or
replace an injector, remove it from the mixer tube (after
removing the connection nut retaining ring and sliding
the nut forward) by grasping it with a pair of pliers
between the seating surfaces and pulling it straight out
with steady force. Take great care not to mar the
injector seats or O-rings with the pliers. Clean the
central (oxygen) orifice with the correct size twist drill
(see table on page 4). Use no other tools. Replace O-
rings if damaged or worn. Replace the injector if its rear
seats are marred. When reinstalling injector, be sure to
push it in until its retaining O-ring is firmly seated in the
mixer tube.
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