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RESERVOIR COOLANT LEVEL
The reservoir volume should be checked daily before
using the cooler. Remove the reservoir fill cap and
check the coolant level. The reservoir is full when the
coolant level is just below the input elbow of the reser-
voir (approximate. 2 Gal / 7.6 ltrs). Keep the reservoir
full, especially after disconnecting the water lines or
changing the accessory being cooled.
COOLANT TREATMENT
RECOMMENDATION
This procedure is intended to provide a means of
reducing the objectionable amount of fungal and bac-
terial contamination that has occurred in Under-Cooler
cart water coolers and cooling systems.
Limitations:
• This additive should be used with fresh coolants con-
taining only pure water.
• This additive should not be used with coolants con-
taining any other substance, including antifreeze
substances.
• No other additives shall be used with the specified
coolant that has been treated with the recommended
additive.
• This procedure is no permanent substitute for a peri-
odic maintenance schedule for the specified coolers
• A 1 quart bottle of additive is sufficient to disinfect
and treat about 720 coolers.
• Check with the manufacturer of your guns or
torches to be sure that this procedure is compat-
ible with your equipment.
a. Additive: "Poly Algaecide 30X" containing 30% of
active ingredient Poly oxyethylene (dimethylimino)
ethylene (dimethylimino) ethylene dichloride.
b. Cooler: Lincoln part number see Parts Pages of
this manual.
c. Cooling system: the entire system, including cool-
er and accessories (torch, all connecting hoses,
etc.)
d. Disinfectant: A user-prepared mixture of fresh,
pure water and additive concentrated to 200 ppm
maximum.
e. ppm: parts per million
f. Treated coolant: A user-prepared mixture of fresh,
pure water and additive concentrated to a nominal
of 30 ppm
MAINTENANCE
Preparation:
• Always switch off the Precision TIG machine power.
• Always disconnect the Under-Cooler cart from the
TIG machine receptacle.
• Be sure that the coolant presently in the system is at
room temperature to avoid being burned.
• Personal safety equipment: chemical safety glasses,
rubber gloves.
• See applicable MSDS for additional information.
• Contact the additive manufacturer, local EPA office
or applicable environmental agency for responsible
disposal methods of both used, treated coolant and
used disinfectant.
• Safety hazards are identified in equipment instruc-
tion manuals: refer to specific Power Source
machine manual and Under-Cooler cart IM723.
Drain the cooling system of contaminated coolant:
• Do not reuse this coolant.
• If system contained an antifreeze-based coolant,
rinse the cooling system until it is clear of antifreeze
solution.
Service the cooler:
• Always unplug the cooler and remove hoses con-
nected to the TIG machine. Remove the cooler
drawer for thorough cleaning and disinfecting of sys-
tem.
• Independently flush out the welding accessories of
debris if necessary
• Mechanically clean out the cooler, including reser-
voir, of debris if necessary. Power washing may be
useful.
• Clean or replace the pump's inlet strainer as
required
UNDER-COOLER CART
D-2
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