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Part No. P807-0198
Rev. B 6/96
3
OPERATION
Only qualified personnel should operate a disconnect
switch. Such personnel should wear appropriate
protective equipment such as rubber gloves, hard hat,
safety glasses, etc., in accordance with established
utility and safety practices.
Do not attempt to open a disconnect switch to interrupt
load current. An arc started by opening a disconnect
switch under load could cause injury to personnel or
damage to equipment.
To close the M3 disconnect switch, place the
hookstick in the pull ring on the blade and rotate the
blade to an intermediate position as shown in Figure
6. Look away from the switch. Quickly and firmly
drive the switch blade to the closed position. Carefully
remove the hookstick from the pull ring to avoid
opening the switch.
The M3 switch is properly closed when the blade hook
is fully engaged with the latch portion of the blade
stop as shown in Figure 7.
To open the M3 disconnect switch, place the hookstick
in the pull ring as shown in Figure 8.
Look away from the switch. Quickly and firmly pull
down and towards the hinge end of the switch at
about a 45° angle. Once the switch blade is open,
complete the blade travel to its stop position. Carefully
remove the hookstick from the pull ring.
All Chance M3 disconnect switches include loadbreak
hooks for use with a loadbreak tool. To open the
switch under load, use only an approved loadbreak
tool or device designed for use with switches. Follow
the instructions provided with such tools.
Figure 6
Figure 7
Figure 8
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! WARNING
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! WARNING