OM-129 647 Page 44
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 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
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
generator A/V control so load
equals rated generator output (see
nameplate).
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.
1
3
2
5
6
+
4
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