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Check that the jaw casting contact surfaces align

with the main blades. If necessary to adjust,

oosen the jaw casting mounting bolts, tap on the

pade terminal to align, then re-tighten the bolts.

See Figure 8.

Step 3: Arcing Blade Alignment

Slowly move blade in and out to check for

proper alignment of arcing blade with the

opening in the arc chute. If necessary, adjust the

jaw casting by loosening the mounting bolts and

lightly tapping the arc chute mounting bracket.

Re-tighten the bolts. See Figure 9.

If any corrections in the arcing blade position

e necessar

y (after all pr

evious steps hav

e been

completed), loosen the locknut on the arcing blade

adjusting screw – see Figure 10 – and turn the

screw either in or out to obtain positioning of arc-

ing blade. Re-tighten the locknut.

Figure 8

Figure 9

Figure 10

pade terminal

Jaw casting

Arc chute

Adjusting screw

BreakMaster Load Interrupter Switch

GE BreakMaster User Manual

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