Duty Cycle And Overheating; Section 3 − Installation; Installing Work Clamp - MAC TOOLS MW50 Owner's Manual

2-2. Duty Cycle And Overheating

60% Duty Cycle At 200 Amperes
6 Minutes Welding
60% Duty Cycle At 200 Amperes Using CO
6 minutes Welding
60% Duty Cycle At 180 Amperes Using Mixed Gas
6 minutes Welding

3-1. Installing Work Clamp

Tools Needed:
1/2, 3/4 in
OM-154 501 Page 6
UNIT
4 Minutes Resting
GUN
2
4 minutes Resting
GUN
4 minutes Resting
SECTION 3 − INSTALLATION
1
2
3
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
Y Exceeding duty cycle can
damage
warranty.
1 Work Cable
2 Boot
Slide boot onto work cable. Route
cable out front panel opening from
inside.
3 Negative (−) Output Terminal
4
Connect cable to terminal and
cover connection with boot.
4 Hardware
5
5 Work Clamp
Route cable through clamp handle
and secure as shown.
Close door.
unit and void
rduty1 5/95 − sb-150 215
Ref. ST-800 918-B