BENSHAW ENHANCED KEYPAD Manual do Utilizador descarregar pdf (Página 200)

8.7.4 SCR Clamp

Below is an exploded view of a typical SCR clamp. Refer to the Clamp Parts List below for names of the parts being used.

SCR CLAMP PARTS

8.7.5 Tightening Clamp

Finger tighten the clamp. Ensure both bolts are tightened an equal amount so that the loader bar (item 1) is square in the heatsink.

Tighten the bolts equally in 1/8 turn increments until the indicator washer(s) (item 6), which are under the nut(s) in the center of the

loader bar, becomes loose indicating the clamp is tight. On the loader bars with two indicator washers, it may be necessary to tighten or

loosen one side of the clamp to get both indicator washers free.

8.7.6 Testing SCR

After the SCRs have been replaced, conduct the resistance test as defined in section 8.5.

192

8 - TROUBLESHOOTING & MAINTENANCE

Item # Quantity Description

1 1 Loader Bar

2 2 Insulator cup

3 2 Bolt

4 2 Washer

5 2

Serrated nut (larger style clamp has 1

support bar)

6 1 or 2

Indicator Washer – Quantity dependant

on style of clamp

1 2 ... 195 196 197 198 199 200 201 202 203 204 205 ... 221 222

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BENSHAW ENHANCED KEYPAD Manual do Utilizador Página 200