Name: Hach sc200
Brand: Hach
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Model 6 Motor Control Centers 80459-641-01E

Section 10—Expansion 10/2012

ENGLISH

Modifying Fixed Units 1. Turn off all power supplying this equipment before working on or inside

the equipment, and follow lockout/tagout procedures. Always use a

properly rated voltage sensing device to confirm the power is off.

2. If drilling holes in the back of the MCC unit saddle is required, do not drill

through the back of the saddle more than 0.1875 in. (5 mm). Use a drill

stop device for this procedure.

3. Perform the required modifications. Use thread-forming screws to mount

devices. Do not use bolts and nuts, as they could loosen over time and

cause property damage or personal injury. The hardware must not extend

beyond the back of the MCC unit saddle more than 0.25 in. (6 mm) or

beyond the sides and bottom pan by more than 0.125 in. (3 mm).

4. Make sure that proper electrical spacing

between uninsulated live parts

of opposite polarity and an exposed or uninsulated dead metal part is

maintained.

5. Use a vacuum cleaner to remove all debris left in the unit as a result of

the modifications. Do not use compressed air to blow out the unit,

because all debris may not be fully removed.

6. Perform the recommended maintenance procedures beginning on 56 of

this manual.

7. Use a megohmmeter to perform an insulation test as outlined on 66.

8. Follow the procedures for “Energizing the MCC” on page 54.

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