HOIST INSTALLATION
PRE-INSTALLATION INSPECTION
1. Remove your hoist from the crate.
2. Take note of the preset voltage that your hoist has been set to. This information
can be found on the lid of the shipping crate. If you are not sure of your hoist
voltage, contact Bison’s customer service.
3. Give the hoist a visual inspection. Look for any obvious defects or damage to the
unit.
4. Always make sure your power supply is disconnected before you wire your hoist.
5. If necessary, make the changes to your hoists voltage by following the steps
below.
HOIST DUAL VOLTAGE ADJUSTMENT
All hoists come with the option of using either 460v or 230v power supply. The default
voltage on all hoists is prewired for 460v. (unless otherwise stated)
This can be adjusted as follows:
1. Transformer Connection: The transformer like the hoist is wired as standard from
the factory for an incoming power supply of 460v.The Red wire (0V) of the
transformer is connected to T2 of the reversing contactor. The Blue wire (460V)
is connected to T3 of the same reversing contactor.
If the incoming power supply is changed to 230v then the Yellow wire of the
transformer (230V) should be connected to T3 of the reversing contactor. The
Blue wire (460V) must be disconnected from T3 and well insulated. Ensure the
cable is insulated in a manner that will not allow it to float around in the panel.
2. Motor Connection:
Single Speed: The Hoist motor is wired as standard from the factory for an
incoming power supply of 460v. There are 6 wires from the motor Labelled U1;
V1; W1; W2; U2; V2. The standard 460v connection is W2/U2/V2 are joined
together and U1/V1/W1 are connected to T1/T2/T3 of the reversing contactor.
For 230v main incoming supply voltage then a parallel connection of the wires is
required as follows: W2&U1 connect to T1-U2&V1 connect to T2-V2&W1
connect to T3.
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