Welder Specifications; Description; Welder Operating Characteristics; Duty Cycle - Craftsman 934.205592 Operator's Manual

DESCRIPTION
Your new 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 built-in
control/feeder. This MIG welder is
capable of welding with 0.024 (0.6mm)
and 0.030 (0.8mm), solid steel wire on
dc reverse polarity and with .030 inch
self-shielding flux-core wire on dc
straight polarity. Larger, 0.035 inch
(0.9mm) diameter solid steel wire, on dc
reverse polarity, and self shielding flux-
core wire on dc straight polarity may
also be used on this welder. The use of
larger diameter wire makes welding
difficult and the results cannot be
guaranteed. The manufacturer does not
recommend the use of larger diameter
wire.
Now you can weld sheet metal from 24
gauge up to 1/4 inch thick with a single
pass. You can weld thicker steel with
beveling and multiple pass techniques.
Table 1 lists your MIG welder
specifications.
Table 1. Welder Specifications
Primary (input) volts 120 Vac
Primary (inputs) Amps 25
Phase Single
Frequency 60 Hz
Secondary (output) volts 19.5
Secondary (UL output) ampsl05
Open Circuit Volts (Max.) 28 Vdc
Duty Cycle Rating 20%
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
8
allowed. The balance of the 10-minute
cycle is required for cooling.
Your new welder has a duty cycle rating
of 20% at the rated output. This means
that you can weld for two (2) minutes out
of 10 with the remaining eight (8) 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 this welder can
result. If you exceed the duty cycle of
your welder, an internal 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 10 minutes
after the thermal protector opens
before resuming welding. You must
do this even if the thermal protector
resets itself before the 10 minutes is
up or you may experience less than
specified duty cycle performance.
If you find that your welder will not weld
for 2 minutes without stopping, reduce
the wire speed slightly and tune the
welder in at the lowest wire speed
setting that still produces a smooth arc.
Welding with the wire speed set too high
causes excessive current draw and
shortens the duty cycle.