Hobart Welding Products Hobart 300/300, Owner'S Manual

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OM-494 Page 50
9-3. Run-In Procedure Using Resistance Grid
S-0684
Stop engine.
Do not touch hot exhaust
pipe, engine parts, or load
bank/grid.
Keep exhaust and pipe away
from flammables.
1 Resistance Grid
Use grid sized for generator rated
output.
Turn Off grid.
2 Welding Generator
Place Welder Selector switch in
Welder B position (600 Amps), A/V
control in minimum position, and
both Process Selector switches in
Stick/TIG position.
3 Weld Cables
Connect grid to generator Welder B
(right) weld output terminals using
proper size weld cables with cor-
rect connectors (polarity is not im-
portant).
4 Voltmeter
5 Clamp-On Ammeter
Connect voltmeter and ammeter as
shown, if not provided on generator.
Start engine and run for several
minutes.
Set grid switches and then adjust
generator A/V control so load
equals 350 Amps at 40 volts.
Check generator and meters after
first five minutes then every fifteen
minutes to be sure generator is
loaded properly.
Check oil level frequently dur-
ing run-in; add oil if needed.
After one hour (minimum), place
A/V control in minimum position,
then shut down grid to remove load.
Run engine several minutes at no
load.
Stop engine and let cool.
6 Engine Exhaust Pipe
Repeat procedure if wetstacking is
present.
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6
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