8 mini trolley installation – Harrington Hoists and Cranes ED-DA Hoist - (ED3) User Manual
Page 17
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Power Supply Cable - Installation
If the hoist is hook mounted to a fixed support ensure that the Power Supply Cable is properly
installed and supported between the hoist and the electrical power supply.
If the host is installed on a manual trolley, then the Power Supply Cable must be installed along the
beam that the trolley runs on. For curved beams a special cable suspension system will be
needed, and this instruction does not apply. For straight beams install the Power Supply Cable as
follows:
Install a Guide Wire System parallel to the beam.
For a manual trolley the Guide Wire should be positioned slightly outside the hoist's Cable
Support.
3.7.4
Connection to Electrical Power Source - The white and black wires of the Power Supply Cable should
be connected to an Electric Power Disconnect Switch or Circuit Breaker.
3.7.5
Fuse/Breaker Capacity - The hoist's power supply should be equipped with overcurrent protection such
as fuses, which should be selected for 110% to 120% of total listed full load amperage, and should be
dual element time-delay fuses. Refer to the motor nameplate for the full load amperage draw.
3.7.6
Grounding - An improper or insufficient ground connection creates an electrical
shock hazard when touching any part of the hoist or trolley. In the Power Supply Cable the ground wire
will be either Green with Yellow stripe or solid Green. It should always be connected to a suitable
ground connection. Do not paint the trolley wheel running surfaces of the beam as this can affect
grounding.
3.8
Mini Trolley Installation
3.8.1
Mini Trolley - Follow instructions below to install the trolley. Refer to Figure 3-6.
1) Remove the Top Hook Assembly from the hoist.
2) Refer to Table 3-3 for placement of Adjusting Spacers for the flange width “B” of the traversing beam.
The position of Adjusting Spacers differs with flange width. If the beam flange width is not listed in
Table 3-3, use the next size smaller and make adjustments in accordance with step 3. Use all 32
Adjusting Spacers provided.
Table 3.3 Quantity and Position of Trolley Spacers
Flange
Width
(in)
Number of spacers
Outside
Left Frame
Inside Left
Frame
Inside
Yoke
Inside
Right
Frame
Outside
Right
Frame
2
8
6
4
6
8
2 5/16
6
7
4
8
7
2 1/2
6
8
4
8
6
2 11/16
5
8
4
9
6
2 13/16
5
9
4
9
5
3
4
10
4
10
4
3 1/4
3
11
4
11
3
3 5/16
3
11
4
11
3
3 9/16
2
12
4
12
2
3 11/16
1
12
4
13
2
3 7/8
0
13
4
14
1
3 15/16
0
14
4
14
0