Specifications
NOTE: After the unit is connected to the power sup-
ply system (see below), suspend a capacity load
from the hoist and operate the trolley over the entire
length of the runway or monorail system to be sure
that the adjustments and operation is satisfactory.
On systems with curves, the edges of the rail at the-
curved sections should be kept lightly lubricates
with grease.
POWER SUPPLY AND ELECTRICAL
CONNECTIONS
The hoist should be connected to a branch circuit which
complies with the requirements of the National Electrical
Code and applicable local codes.
It is recommended, especially for a single phase hoist with a
one horsepower (.75 kW) motor, that a line of adequate
capacity be run directly from the power supply to the hoist to
prevent having problems with low voltage and circuit over-
loads.
For grounding of the hoist, the power cord includes a
grounding conductor (green wire). Furthermore, the suspen-
sion system on which the hoist is mounted must also be per-
manently grounded.
Before connecting the hoist to the power supply, check that
the power to be used agrees with that shown on the hoist
identification plate. In addition, for a three phase, dual volt-
age unit, check the voltage shown on the tag attached to the
power cord.
Figure 12. Voltage Conversion Board
NOTE: Before connecting the hoist to the power
supply, check that the power to be used agrees
with the position of voltage change plug on the
voltage change board.
The nonimal hoist voltage rating corresponding to the voltage
range given on the hoist identification plate is:
THREE PHASE HOIST
Unless ordered on a special basis, all single speed dual volt-
age (230/460-3-60, 220/230-3-50 and 220/415-3-50) hoists
are factory set to operate on 460-3-60 (380-3-50 or 415-3-
50). However, a voltage conversion board is provided to eas-
ily and quickly change from 460 to 230 (or 380 to 220 or 415
to 220) volt operation. The voltage conversion board shown
in Figure 12 is located in the hoist as shown in Figure 13.
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WARNING
An excessively worn beam flange may fail and allow the trolley
to fall from the beam.
TO AVOID INJURY:
Periodically inspect the beam flange for wear. Replace beam if
flange is worn.
High Voltage (Red)
Low Voltage (White)
SINGLE SPEED UNITS TWO SPEED UNITS
Range Nominal Volts Range Nominal Volts
110-120 115 208-230 230
208-240 230 440-460 460
440-480 460