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COOL ARC
®
22
MAINTENANCE
Safety Precautions
WARNING
ELECTRIC SHOCK can kill.
•
Do not touch electrically live parts or
electrode with skin or wet clothing.
•
Insulate yourself from work and ground
•
Always wear dry insulating gloves.
•
Disconnect input power by removing plug from
receptacle before working inside Cooler.
•
Do not touch electrically "hot" parts inside Cooler.
•
Have qualified personnel do the installation,
maintenance and troubleshooting work.
•
Unplug the cooler before performing general
maintenance.
MOVING PARTS can injure.
•
Do not operate with doors open or guards off.
•
Keep away from moving parts.
See additional warning information throughout
this Operator's Manual
FOR ANY REPAIR OPERATIONS, MODIFICATIONS OR
MAINTENANCE, IT IS RECOMMENDED TO CONTACT
THE NEAREST TECHNICAL SERVICE CENTER OR
LINCOLN ELECTRIC. REPAIRS AND MODIFICATIONS
PERFORMED BY UNAUTHORIZED SERVICE OR PER-
SONNEL WILL CAUSE THE MANUFACTURER'S WAR-
RANTY TO BECOME NULL AND VOID.
ANY NOTICEABLE DAMAGE SHOULD BE REPORTED
IMMEDIATELY AND REPAIRED.
ROUTINE MAINTENANCE
• Check the condition of water-cooler hoses and connections of
the power lead.
• Check the welding torch condition: replace it, if necessary.
• Check condition and operation of the cooling fan. Keep airflow
slots clean.
• The reservoir volume should be checked daily before using
the cooler.
• Keep the reservoir full, especially after disconnecting the
water lines or changing the accessory being cooled.
• Clean the tank filter.
PERIODIC MAINTENANCE (NOT LESS THAN ONCE A
YEAR)
Perform the routine maintenance and, in addition:
• Keep the machine clean. Using a dry (and low pressure)
airflow, remove the dust from the external case and from the
heat exchanger inside.
• In dirty or dusty environments or if biological growth occurs in
the coolant, it may be necessary to flush the coolant
reservoir. Drain the old coolant, rinse the inside of the
reservoir and circulate rinsing solution through the coolant
system. Add new coolant when cleaning is finished.
WARNING
Hot coolant can burn skin. Always ensure coolant is NOT
HOT before servicing the cooler.
Special precautions have to be taken when the coolant is
removed from the cooler reservoir. The coolant must not be
poured out into ground water, sewerage, or soil. Read
"Material Safety Data Sheet" (coolant used) and contact the
local Department of Environmental Protection office to
obtain information on recycling coolant.
The frequency of the maintenance operations may vary in
accordance with the working environment where the machine is
placed.
WARNING
Do not touch electrically live parts.
Before the case of machine will be removed,
the machine has to be turned off and the
power lead has to be disconnected from
mains socket.
The power must be disconnected from the machine before
each maintenance and service. After each repair, perform
proper tests to ensure safety.
D-1
MAINTENANCE
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