Miller Electric Metro 250D - Manual (Page 42)

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OM-402
9.3 Run-In Procedure Using Resistance Grid
S-0684
Y Stop engine.
Y Do not touch hot exhaust
pipe, engine parts, or load
bank/ grid.
Y Keep exhaust and pipe away
from flammables.
1 Resistance Grid
Use grid sized for generator rated
output.
Turn Off grid.
2
Welding Generator
Set Amperage control at min.
3
Weld Cables
Connect grid to generator weld
output terminals using proper size
weld cables with correct connec-
tors (polarity is not important).
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
Amperage control so load and out-
put are 180 A.
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
Amperage control in minimum posi-
tion, then shut down grid to remove
load. Run engine several minutes
at no load.
Y Stop engine and let cool.
6
Engine Exhaust Pipe
Repeat procedure if wetstacking is
present.
1
3
2
5
6
+
4