Miller Electric Big Blue 452P Run-In Procedure Using Resistance Grid, Bank/grid, From flammables

11-3. Run-In Procedure Using Resistance Grid

	Y	Stop engine.
	Y Do not touch hot exhaust
		pipe, engine parts, or load
		bank/grid.
6	Y Keep exhaust and pipe away
		from flammables.
	Y Do not perform run-in
	2	procedure at less than 20
		volts weld output and do not
		exceed duty cycle or equip-
		ment damage may occur.
	1	Resistance Grid

		Use grid sized for generator rated
		output.
	1	Turn Off grid.
		2	Welding Generator
		Place A/V range switch in maxi-
		mum position, A/V control in mini-
		mum position, and Output Selector
		switch (if present) in either DC
		position.
		3	Weld Cables
		Connect grid to generator weld
		output terminals using proper size
		weld cables with correct connec-
		tors (polarity is not important).
		4	Voltmeter
		5 Clamp-On Ammeter
		Connect voltmeter and ammeter as
		shown, if not provided on generator.
3	5	Start engine and run for several
		minutes.

Set grid switches and then adjust generator A/V control so load equals rated voltage and current of the generator (see nameplate, rat-

4ing label, or the specifications sec- tion in this manual).

Check generator and meters after first five minutes then every fifteen

+minutes to be sure generator is loaded properly.

. Check oil level frequently dur- ing run-in; add oil if needed.

After one hour (minimum), place A/V control in minimum position, then shut down grid to remove load. Run engine several minutes at no load.

Y Stop engine and let cool.

6 Engine Exhaust Pipe

Repeat procedure if wetstacking is present.

S-0684

OM-496 Page 62 Return To Table Of Contents