TA Operation/Maintenance Instructions Page 11 of 36
5.0 Switch Gear
5.1 The Padlockable Isolator
With this switch in the OFF position the machine is effectively isolated from
the supply to allow personnel safe access for maintenance or repair work
and to prevent dangerous restarts. To prevent unauthorised use of the
machine the switch can also be secured in the OFF position using a
padlock.
To operate the machine first turn the isolator to the ON position.
5.2 Start / Stop Buttons
The motor is then started by pushing the green (power on) button on the starter panel and
stopped using the red (power off) button. The mushroom headed lock-off stop switch,
once pressed will remain locked in the off position. To restart the machine, it is necessary
to release the off button by twisting it in a clockwise direction.
5.3 Circuit Protection
In case of a mains failure the starter is fitted with no volt release protection and will not
restart without being switched on again. The starter is also fitted with an overload
protection device. An electrical overload occurs where an electric motor is subjected to a
greater load than it was designed for. This can be caused by short circuit, by incorrect
installation, or by misuse (including poor machine maintenance). The inbuilt breaker will
therefore help prevent damage to the motor should such a situation occur. The motor
cannot be restarted until the breaker has reset itself.
5.4 Emergency Foot Operated Latching Stop Switch
This switch is provided for use in emergency situations only. We do not
recommend that it is used in lieu of the stop switch on the front of the
starter panel. The foot switch once pressed will remain locked in the off
position. To restart the machine, it is necessary to release the switch by
pulling it towards you.
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