DME HOIST RING
INSTALLATION INFORMATION
Select the proper Hoist Ring for the job. Do not attempt to apply
more then the rated load capacity.
The load capacity is marked
on the hoist ring.
Drill and tap the workpiece so that the hoist ring bolt is installed
perpendicular to the surface of the workpiece. Countersink the
tapped hole to prevent “swelling” of the top thread when the
hoist ring bolt is torqued. The workpiece surface must be flat,
providing complete contact for the hoist ring bushing.
Do not use spacers between the hoist ring bushing and the
workpiece surface.
When installing in soft metal, such as aluminum, the minimum
effective thread engagement should be two times the diameter
of the bolt. When installing in steel, thread engagement should
be 1-1/2 times the bolt diameter.
Always
tighten the bolt to the proper torque value
, which is
stamped on the hoist ring.
Loosening of the bolt may develop during use.
Re-tightening to the required torque must be done whenever
the bolt loosens
. The proper tightening torque is stamped on the hoist ring.
When lifting, apply force gradually.
DO NOT APPLY SHOCK LOADS
.
For through-hole applications, be sure that nut/washer are the same quality grade as the hoist ring
Periodic visual inspection and pull testing is recommended as damage can occur from improper
usage.
DME Company
29111 Stephenson Highway
Madison Heights
MI
48071
800-626-6653
