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ASSEMBLY INSTRUCTIONS
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The model FHS fixed-height steel gantry crane and the AHS and AHA adjustable-height steel and aluminum gantry
cranes are suitable for use indoors and outdoors for many industrial and commercial applications.
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Modifications or additions to the gantry crane without prior authorization from the manufacturer may void the
crane's warranty.
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Assembly must be performed by suitably trained personnel with access to the appropriate equipment.
For assembly you will need the following:
1. A fork truck or overhead hoist or crane.
2. Basic fastener tightening hand tools such as a wrench set or a socket set,
an adjustable wrench, ect.
Installing the crane's top beam and leg assemblies together:
1. On adjustable-height models, (AHS and AHA), insert the upper frame sides
into the lower frame sides and secure both sides at the same level with the
height adjustment pins and clips.
2. Lay out the crane's top beams and the two leg assemblies on a floor area
that has ample clear working space.
3. Attach the beam clamps (or clamp plates, on lighter capacities) to the top
flanges on both leg assemblies using the 1/2"-13 structural bolts and nuts
provided, as shown in the illustration.
4. Slide the bottom flange of each end of the I-beam between the beam
clamps (or clamp plates) and the leg assemblies' top flange until the desired
usable beam length is attained.
5. Tighten all the beam clamp units to a torque of 50-52 foot-pounds.
6. Tip the assembly upright into a standing position using a fork truck or
overhead crane.
7. Lifting at the center of the cross beam, slowly raise the assembled gantry
just high enough to install the casters.
Installing the casters to each leg:
8. Hold an 8" caster under the bottom flange of each leg of the crane so that
the caster rig's holes match the holes in the leg's bottom flange.
9. Hang a caster from the bottom of each leg, installing one bolt at
a corner of each rig that is nearer the center of the leg set. Washers and
nuts, as shown in the illustration, are not used on the 2,000 & 4,000 lb.
capacity steel gantrys, which have 5/16"-18 tapped mounting holes.
10. Insert the detent assembly under the caster rig, as shown, and install the
remaining three fasteners.
11. Tighten the locking nuts securely.
12. Rotate the wheels so that all are parallel with each other, then lock them in
place with the detents.
13. Slowly lower the completed gantry crane so that it rests on the casters.
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