Miller Electric OM-494 manual RUN-IN Procedure, Wetstacking, Ment damage may occur

SECTION 10 − RUN-IN PROCEDURE

run_in3 8/01

10-1. Wetstacking

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-
	2	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.
1		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.

OM-494 Page 48