Miller Electric Big Blue 500 PT, Owner'S Manual

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OM-4429 Page 56
SECTION 11 − RUN-IN PROCEDURE
run_in1 2007 − 04
11-1. Wetstacking
1 Welding Generator
Run diesel engines near rated volt-
age and current during run-in period
to properly seat piston rings and
prevent wetstacking. See name-
plate, rating label, or specifications
section in this manual to find rated
voltage and current.
NOTICE − Do not idle engine longer
than necessary. Piston rings seat
faster if engine runs at weld/power
rpm, and the welding generator is
kept loaded during run-in.
2 Engine Exhaust Pipe
Wetstacking is unburned fuel and
oil in the exhaust pipe and occurs
during run-in if the engine is run too
long at light load or idle rpm.
If exhaust pipe is coated with a wet,
black, tar-like substance, dry the
engine using one of the following
run-in procedures.
See the engine manual for addition-
al engine run-in information.
2
1
NOTICE − Do not perform run-in
procedure at less than 20 volts
weld output and do not exceed duty
cycle or equipment damage may
occur.