Wire Feed Welding Processes (Constant Voltage); Summary Of Welding Process - Red-D-Arc ZR-8 Operator's Manual

The K930-1 TIG Module should be used with the ZR-
8 on high idle to maintain satisfactory operation. It can
be used in the AUTO position but the delay going to
flow idle after welding is ceased will be increased if
the AFTERFLOW CONTROL is set above 10 sec-
onds
Wire Feed Welding Processes
(Constant Voltage)
®
electrode recommended for use
The only Innershield
®
with the ZR-8 is NR -211-MP. The electrode sizes
and welding ranges that can be used with the ZR-8
are shown in the following table:
Diameter Wire Speed
(in.) Range In./Min.
.035 80 - 110
.045 70 - 130
.068 40 - 90
PROCESS
STICK
TIG/K7930-1/K938-1,
K936-( ) /K892-1
(WITH AMPTROL)
WIRE FEED, LN-25 WITH
INTERNAL CONTACTOR
WIRE FEED, LN-7 WITH
K240 CONTACTOR KIT
Approximate
Current Range
75A to 120A
120A to 170A
125A to 210A
Summary of Welding Processes
CONTROL
CABLE IDLE
USED MODE
No AUTO
Yes HIGH
No AUTO
Yes HIGH
– 19 –
The ZR-8 is recommended for limited "MIG" welding
(GMAW - gas metal arc welding). The recommended
electrodes are .030" and .035" L-50 and L-56. They
must be used with a blended shielding gas such as
C25 (75% Argon - 25% CO
that can be used with the ZR-8 are shown in the fol-
lowing table:
Diameter Wire Speed
(in.) Range In./Min.
.030 80 - 110
.035 70 - 130
ELECTRODE
WHEN NOT
WELDING
Hot Touch electrode to work.
Welding starts immediately
and engine goes to high
idle.
Cold Press Amptrol, contactor
closes, welding
starts immediately.
Cold Press gun trigger, LN-25
contactor closes. Welding
starts immediately and
engine goes to high idle.
NOTE: Output Control
must be set above "3".
Cold Press gun trigger,
contactor closes. Welding
starts immediately.
). The welding ranges
2
Approximate
Current Range
75A to 120A
120A to 170A
TO START
WELDING