Run-In Procedure Using Load Bank - Miller Electric Big Blue 300 Owner's Manual

10-2. Run-In Procedure Using Load Bank

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NOTICE − Do not perform run-in
procedure at less than 20 volts weld
output and do not exceed duty
1
cycle or equipment damage may
occur.
1
Turn all load bank switches Off. If
needed, connect load bank to 115
volts ac wall receptacle or genera-
tor auxiliary power receptacle.
2
Place A/V range switch in maxi-
mum position, A/V control in mini-
mum position, and Output Selector
switch (if present) in either DC
position.
3
Connect load bank to generator
weld output terminals using proper
size weld cables with correct
connectors.
polarity.
Start engine and run for several
minutes.
Set load bank switches and then
adjust generator A/V control so
load equals rated voltage and
current of generator (see name-
plate, rating label, or the specifi-
cations section in this manual).
Check generator and load bank
meters after first five minutes then
every fifteen minutes to be sure
generator is loaded properly.
NOTICE − Check oil level frequent-
ly during run-in; add oil if needed.
It is recommended to run the weld-
ing generator for two hours mini-
mum and up to four hours under
load. Place A/V control in minimum
position, then turn off load bank to
remove load. Run engine several
minutes at no load.
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4
Repeat procedure if wetstacking is
present.
Stop engine.
Do not touch hot exhaust
pipe, engine parts, or load
bank/grid.
Keep exhaust and pipe away
from flammables.
Load Bank
Welding Generator
Weld Cables
Observe correct
Stop engine and let cool.
Engine Exhaust Pipe
S-0683
OM-4433 Page 51