Harrington Hoists and Cranes SH Hoist - Manual (Page 4)

4
6. If your hoist is either an SH005-L or SH020-L the bottom hook is suspended by a double load
chain. The correct load chain setup is when the weld of every link faces inward (Fig. 3).
Never try to suspend a load on a twisted chain.
7. ELECTRICAL POWER SUPPLY
7-1 INSTALLATION OF POWER SUPPLY CABLE (PT and GT type)
a) Suspend a 1/4" diameter steel messenger wire along the beam and hang the power supply
cable through the cable hangers without twisting the power cable.
b) Install the messenger wire (Fig. 4). For PT and GT types, the wire should be on the right
side of the cable hanger arm of the hoist.
c) A messenger wire can not be installed on a curved beam. A special T-type cable hanger
for the curved beam section is available upon request. Consult factory for the proper
number of hangers and spacing between them as they differ depending on the location and
radius of the curve in the beam.
Abnormal
Normal
Welded
Part
Welded
Part
Fig. 3
Manual Trolley Type
Messenger Wire
Fig. 4