Section 9 − Run-In Procedure; Wetstacking - Miller Electric Big Blue 502P Owner's Manual

SECTION 9 − RUN-IN PROCEDURE

9-1. Wetstacking

OM-491 Page 38
2
1
Run diesel engines near rated out-
put during run-in period to properly
seat piston rings and prevent wets-
tacking. See nameplate or rating
label to find rated output.
.
2
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.
1
See the engine manual for addition-
al engine run-in information.
run_in1 6/96
Welding Generator
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.
Engine Exhaust Pipe