Miller Electric CV-2 owner manual Cable

	Rear View (Inside)	Left Front Upright When
	Of Lower Front Panel
		Viewed From Front
		Of Control Panel
		Electrode (Negative)
	Cable 28	Weld Output Terminal
		Weld Output
		Terminal Assembly
		Work (Positive)
		Weld Output
Cable 30 From Negative		Terminal
	Cable 30
Weld Output Terminal
And Black Voltmeter Lead,
If Applicable		Bimetal Jumper
		Bar-Copper Side
		Of Bar Against
Cable 19 From Positive		Terminal Surface
Weld Output Terminal
Cable Lug Connection
With Tubing And Ties
	Selector	Cable 19
	Switch S1	SB-112 688-A

Figure 3-2. Selector Switch S1 DC Connections

WARNING: ELECTRIC SHOCK can kill; BI-

METAL JUMPER BAR CONTACT WITH IN- TERNAL COMPONENTS can cause per- sonal injury and equipment damage.

•Do not touch live electrical parts.

•Do not allow bimetal jumper bar to touch metal surfaces or internal components other than the intended connection.

Route bimetal jumper bar so it is not touching other surfaces or components between connec- tion points during operation.

IMPORTANT: Be sure that copper side of bimetal jumper bar is in contact with copper surface of output terminal when making connections.

10.Connect bimetal jumper bar from switch S1 to rear of Positive weld output terminal (see Figure 3-2).

11.For BIG 30 DIESEL and BIG 30A DIESEL mod- els, connect cables 17 and 27 from CV-2 Selector switch S1 as follows:

a.Locate and install supplied cables 17 and 27 on existing cables 17 and 27 on S1. Be sure that the lugs on the nonconnected ends of the sup- plied cables have the larger diameter hole. Se- cure the cable lug connections using the sup- plied 1/4-20 x 3/4 in. screws, flat washers (4), and nuts.

b.Slide a 6 in. (152 mm) long piece of supplied in- sulated tubing over each connection. Secure in- sulated tubing with the supplied nylon cable ties.

c.Route cables over top of stator barrel and to right side of unit. Connect cables from S1 to rec- tifier SR3 with existing cables 17 and 27 below right rear corner of the fuel tank (see Figure 3-3).

12.For BIG 40 DIESEL, BIG 40G, and BIG 50 DIE- SEL models, connect cables 17 and 27 from CV-2 Selector switch S1 as follows:

a.Route cables from S1 up to range switch S3.

b.Connect S1 cables with existing cables 17 and 27 at appropriate terminals on S3 (see Figure 3-3).

13.Connect lead 100 from installed transformer T2 to terminal D on CV-2 terminal strip 3T (see Parts List view for CV-2 component locations).

14.Connect lead 205 from T2 to piggyback connec- tor on existing lead 205 at CV/CC switch S12 on CV-2 panel (see Parts List view for CV-2 compo- nent locations).

15.Connect lead 206 from T2 to the unused terminal at circuit breaker CB6 on CV-2 panel (see Parts List view for CV- component locations).

16.Locate leads 623, 625, 628, 632, and 634 hang- ing from Current Regulator box on rear of front panel. Cut and remove nylon cable ties holding leads together (see Figure 3-4).

17.Disconnect leads 628 and 634 at insulated fric- tion terminals, and connect these leads to the matching leads from the CV-2 panel (see Figure 3-4).

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