Section 9 - Run-In Procedure; Wetstacking - Miller Electric Big Blue 600D Owner's Manual

SECTION 9 – RUN-IN PROCEDURE

9-1. Wetstacking

1
OM-481 Page 32
2
run_in1 8/01
Y Do
not perform run-in
procedure at less than 20
volts weld output and do not
exceed duty cycle or equip-
ment damage may occur.
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.
.
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.