Hot Max Torches 250WFG - Manual (Page 14)

KDAR Company 13
Maintenance
General Maintenance
Power Supply Compartment
The Hot Max 250WFG does not have any serviceable
parts inside the power supply compartment. Do not
attempt to service parts in the power supply compart-
ment. Doing so will void the warranty. Contact
KDAR Company for instructions if you have prob-
lems that can not be corrected by following the trou-
ble shooting instructions.
If you are working in dusty areas, dirt may get into
the air vents and cause the welder to run hot and trip
the thermal overload protection. If this happens, blow
the dirt out with low pressure air regularly.
Wire Feed Compartment
1. Occasionally dirt will accumulate in the wire feed
compartment. When this happens, simply vacuum
the dirt out of the compartment.
2. Each time the wire spool is changed, inspect the
inside diameter of the wire guide tubes. If neces-
sary, clean the inside of the tube.
3. The motor and gearbox needs no lubrication or
maintenance.
Gun Cable
1. To clean the cable liner, remove the gun cable
assembly from the welder and lay it out straight
on the floor.
2. Take the contact tip off of the gun. Blow low
pressure air through the liner from the gun end of
the liner.
Warning
Electrical Shock Can Kill
Disconnect from the input power source prior to working inside the welder.
Allow only qualified personnel to do maintenance and trouble shooting.
Gun Cable (cont.)
3. Flex the cable over its entire length and blow
air through again. Repeat flexing the cable and
blowing air through until no dirt comes out.
Contact Tip & Nozzle
1. When dirt builds up in the contact tip hole,
wire feeding can be restricted. To clean the tip,
run the appropriate sized tip cleaner through
the tip repeatedly. This should remove any dirt
that has built up on the walls of the contact tip.
KDAR Company tip cleaner number 22034 is
available from selected distributors.
2. Remove splatter from the inside gas nozzle and
the tip frequently.