Miller Electric Big Blue 251D Installation, Installing Welding Generator, Connecting The Battery

SECTION 5 − INSTALLATION

5-1. Installing Welding Generator

Movement

YDo Not Lift Unit From End

OR

Airflow Clearance

18in

(460 mm)

	18 in
18 in	(460 mm)
(460 mm)
18 in	18 in
	(460 mm)
(460 mm)

Location

OR

Grounding	1			Y Always securely fasten welding
		2			generator onto transport vehicle
	GND/PE				or trailer and comply with all DOT
					and other applicable codes.
				Y Always ground generator frame
					to vehicle frame to prevent elec-
					tric shock and static electricity
					hazards.
				Y If unit does not have GFCI recep-
	Electrically bond generator frame to				tacles, use GFCI-protected ex-
					tension cord.
	vehicle frame by metal-to-metal
				1	Equipment Grounding Terminal
	contact.		3
					(On Front Panel)
	Y Bed liners, shipping skids, and some running			2 Grounding Cable (Not Supplied)
				3	Metal Vehicle Frame
	gears insulate the welding generator from the
				Connect cable from equipment ground
	vehicle frame. Always connect a ground wire
	from the generator equipment grounding termi-			terminal to metal vehicle frame. Use #10
	nal to bare metal on the vehicle frame as shown.			AWG or larger insulated copper wire.

install1 11/02 − Ref. ST-800 652 / Ref. ST-800 477-A / ST-158 936-A / S-0854

5-2. Connecting The Battery

YConnect Negative (−)

Cable Last.

−

+

Tools Needed: 1/2 in

156 011-A / Ref. 206 029 / S-0756

OM-480 Page 14