Cooling System And Torch Coolant - Lincoln Electric FineLine 170HD Operator's Manual

BK8053-000111 Rev D

2.5 Cooling System and Torch Coolant

Cooling System (located inside the Power Supply):
 Discharge pressure ................................................... 175 psi (12.07 bar)
 Flow rate ....................................................... 1.5 gal/min (5.7 liters/min)
 Coolant fluid .................................................... Propylene glycol solution
 Reservoir capacity .................................................... 5.0 gal (18.9 liters)
 Maximum coolant temperature .......................................... 149°F (65°C)
The torch coolant solution consists of 25% industrial grade propylene glycol and
provides freeze protection down to 9º F (-13º C). Torch coolant can be ordered in
1.0 gallon (3.8 liter) containers, part number BK500695.
DO NOT USE automotive or other commercial anti-freeze that contains rust
inhibitors or leak stoppers. These coolants will damage the pump and block the
small internal passageways in the heat exchanger, affecting cooling performance.
To avoid freeze damage and fluid leakage during shipment, the Power Supply is
delivered with very little coolant in the reservoir. DO NOT OPERATE the System
until it has been filled with coolant.
After the initial filling and after coolant flushes, additional coolant will be required
because the coolant hoses and torch leads will also fill with coolant. Longer runs
require more coolant than shorter runs.
Refer to the Safety Data Sheet (SDS) supplied with the torch coolant for complete
information regarding first aid, handling, storage, transportation and proper disposal.
This information is subject to the controls of the Export Administration Regulations [EAR]. This information shall not be provided to
non-U.S. persons or transferred by any means to any location outside the United States contrary to the requirements of the EAR.
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FineLine 170HD Plasma System