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Installation
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• THE HOISTING EQUIPMENT SHOWN AND DESCRIBED IN THIS MANUAL SHALL NOT BE USED
TO LIFT OR TRANSPORT HUMAN CARGO.
• The hoist shall be installed only in locations that will permit the operator to stand free of the
load at all times. ARO® hoist is completely lubricated and load tested before being shipped
from the factory.
To place in service
Hook Suspended Models
Select an overhead support capable of safely supporting combined weight of hoist and its capacity load. Hang
hoist, being certain the upper hook is firmly seated in the center of the hook saddle and that the safety latch is
properly closed. The use of a secondary safety cable is recommended on page 37.
Trolley Suspended Models
The trolley side plates must be spaced so the trolley wheels will properly engage the beam on which the trolley will
be operated. Adjustment for various beam sizes is accomplished by arrangement of the spacer washers on the
shaft which connects the trolley side plates. The hoist can be suspended from the trolley by using trolley adapter or
by attaching the upper hook directly to shaft
can be found in manual MHD56083 for the TIR/RT trolley series.
The distance between the outside edges of the trolley wheels should be approximately 1/2 inch greater than the
width of the beam flange. The number of spacer washers used to space side plates out must be the same on each
side of the shaft (or trolley adapter) and the remaining spacers must be equally distributed on the shaft outside the
trolley side plates at each side between the side plates and lock nuts,
the beam, be certain side plates are vertical.
Assemble trolley adapter to hoist housing. Determine the number of spacer washers needed to properly space side
plates for beam to be used, and assemble shaft to trolley adapter. Assemble spacer washers, side plate, spacer
washers and nut to one side of shaft. Position trolley and hoist on beam and assemble spacer washers, side plate,
spacer washers and nut to other side of shaft. Tighten nuts securely. The lock nuts must properly engage shaft
extending all the way through the nut.
The trolley wheels should be positioned as close as possible to the edge of the beam flange. Operate the trolley
over the entire length of the beam track and observe operation. If it appears the trolley side plates can be moved
closer together and freedom of movement maintained, remove an equal number of spacer washers from between
the side plates and trolley adapter at each side and assemble these spacers to the outside of the side plates
between the side plate and lock nuts.
The beam on which the trolley is to be used must safely support the combined weight of the hoist, trolley, and
capacity load. Minimum turning radius of the trolley is 24 inches for 1/4 and 1/2 ton models; 36 inches for 1 ton
models.
Connect hoist to nearest air source using a minimum 1/2 inch i.d. air hose assembly. Sufficient air hose must be
provided to reach the farthest point of travel of the trolley.
®
ARO
model 7703 hose trolley assemblies are recommended to keep air hose elevated and in line with the hoist,
refer to
"Hose-Carrier Trolleys," p.
6
W W A A R R N N I I N N G G
Figure 1, p.
7. Use of the trolley adapter is recommended. Trolley parts
37.
Figure 1, p.
7. When installing the trolley on
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