Section 11 - Run-In Procedure; Wetstacking - Miller Big Blue Duo Pro 700 X Owner's Manual

1-1. Wetstacking

SECTION 11 – RUN-IN PROCEDURE
NOTICE – Diesel engines in Miller equipment are meant to operate optimally at moderate to rated load. Using light or no load for extended peri-
ods of time may cause wetstacking or other engine damage. Do not idle engine longer than necessary.
11-1. Wetstacking
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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.
1 Welder/Generator
Run diesel engines near rated voltage and
current during run-in period to properly seat
piston rings and prevent wetstacking. See
nameplate, rating label, or specifications
section in this manual to find rated voltage
and current.
NOTICE – Do not idle engine longer than
necessary. Piston rings only seat correctly if
engine runs at weld/power rpm, and the
welder/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 additional engine
run-in information.
OM-