Clarke Fluxcore/MIG 135sg WE6441, Operating Manual

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DESCRIPTION
Your new MIG (Metal Inert Gas) wire feed
welder is designed for maintenance and
sheet metal fabrication. The welder consists
of a single-phase power transformer,
stabilizer, rectifier, and a unique spool gun
wire feeder.
Now you can weld sheet metal from 26
gauge up to 3/16 inch thick with a single
pass. You can weld thicker steel with bevel-
ing and multiple pass techniques. Table 1
lists your MIG welder specifications.
Table 1. Welder Specifications
Primary (input) volts 120 Vac
Primary (input) Amps 13
Phase Single
Frequency 60Hz
Secondary (output) volts 21 Vdc
Secondary (Max. output) amps 85
Open Circuit Volts (Max.) 30 Vdc
Duty Cycle Rating (CSA) 40%@60A
MIG welders equipped with gas are capable
of welding with 0.024 (0.6mm) and 0.030
(0.8mm) solid steel, bronze or aluminum wire
on dc reverse polarity and with 0.030
(0.8mm) and 0.035 inch (0.9mm) self-shield-
ing flux-core wire on dc straight polarity. The
use of larger diameter wire makes welding
difficult and the results cannot be guaran-
teed. Use of larger than .035 diameter wire is
not recommended.
WELDER OPERATING
CHARACTERISTICS
DUTY CYCLE
The duty cycle rating of a welder defines
how long the operator can weld and how
long the welder must be rested and cooled.
Duty cycle is expressed as a percentage of
10 minutes and represents the maximum
welding time allowed. The balance of the 10-
minute cycle is required for cooling.
This welder has a duty cycle rating of 40% at
the rated output. This means that you can
weld for 4 minutes out of 10 with the
remaining 6 minutes required for cooling.
(See Table 2).
Table 2. Duty Cycle Ratings
Duty Maximum Required
Cycle Welding Resting
Rating Time Time
20% 2 minutes 8 minutes
40% 4 minutes 6 minutes
60% 6 minutes 4 minutes
80% 8 minutes 2 minutes
100% 10 minutes 0 minutes
INTERNAL THERMAL
PROTECTION
CAUTION
Do not constantly exceed the duty cycle or
damage to the welder can result. If you
exceed the duty cycle of the welder, an inter-
nal thermal protector will open, shutting off
all welder functions except the cooling fan. If
this happens, DO NOT SHUT OFF THE
WELDER. Leave the welder turned on with
the fan running. After cooling, the thermal
protector will automatically reset and the
welder will function normally again. However
you should wait at least ten minutes after the
thermal protector opens before resuming
welding. You must do this even if the thermal
protector resets itself before the ten minutes
is up or you may experience less than speci-
fied duty cycle performance.
If you find that the welder will not weld for
four minutes without stopping, reduce the
wire speed slightly and tune in the welder at
the lowest wire speed setting that still pro-
duces a smooth arc. Welding with the wire
speed set too high causes excessive current
draw and shortens the duty cycle.
WELDER SPECIFICATIONS