Hobart Welding Products OM-474 Welding System User Manual


 
OM-474 Page 23
6-3. Connecting Optional Auxiliary Power Plant
Ref. S-185 000-A
Y Stop engine.
Y Power and weld outputs are
live at the same time. Discon-
nect or insulate unused
cables.
. Have qualified person install
according to circuit diagram
and Auxiliary Power Guidelines
(see Section 10).
. Place optional Process switch
in Stick position when using
optional auxiliary power plant.
Remove junction box cover.
1 Lead 93
2 Lead 92
3 Lead 91
4 Lead 90 (Neutral)
5 Isolated Neutral Terminal
6 Jumper Lead 42
7 Grounding Terminal
8 Lead 42 (Circuit Grounding
Lead)
Jumper 42 is connected to lead 90
at factory. Jumper 42 may be dis-
connected from neutral to meet ap-
plicable electrical codes.
Lead 42 connects to front panel
Ground stud.
9 User-Supplied Leads
10 Load Terminals
Connect leads to terminals.
11 Fuses F1, F2, And F3
F1, F2, and F3 protect each load line
from overload.
. Set Engine Control switch to
Run when using auxiliary
power.
Tools Needed:
92
90
91
93
Front
3
846
9
1
2
75
1011
Volts
Amps
KVA/KW
Single
120/240
35
8.5
Three
240
30
12.5
60 HzFrequency
Engine Speed
Max. Fuse Size 45 Amperes
1850 RPM
AC
Phase
1
Phase
3
Output
Lead 42 connects to GROUND stud on
front of unit.
Jumper 42 is connected to 90 at factory.
F3
F2
F1
240V
120V
120V
240V
240V
240V
1 3