Husky Unify - Lifting Using Swivel Hoist Rings

4.1.4 Lifting Using Swivel Hoist Rings
When using swivel hoist rings, remember the following:
• For the installation locations of the swivel hoist rings, refer to the hot runner for the markings
“Hoist Ring Only” or to the assembly drawings.
• Always make sure the swivel hoist ring is properly torqued before lifting.
• Make sure the swivel hoist ring used can support the weight of the plate or component at
the chosen angle of attack.
• Do not lift more than the rated capacity.
• Depending upon the sling angle, the applied load may be more than the weight being lifted.
Two point lifting of a 1000 kg (2000 lb) weight, with a sling angle of 30°, will result in an
applied load of 1000 kg (2000 lb) to each hoist ring.
• After installation, make sure the hoist ring swivels and pivots freely in all directions. The side
of the ring must not contact anything.
• After installation and during operation, store the Husky provided lifting equipment together
and in a readily accessible area.
• Never use a hook or other lifting device which will pry or open the “U” shaped bar on center-
pull hoist rings.
• Screws must be tightened to the recommended torque values.
• Do not apply shock loads. When lifting, apply force gradually.
• Do not use spacers between the hoist ring bushing and the work piece surface.
• The work piece surface must be at, providing complete contact for the hoist ring bushing.
Metric and Imperial swivel hoist rings are available through your nearest Husky Parts Distribution
Center.
Swivel hoist rings purchased from other suppliers must meet or exceed the following
specications.
Table 4-1: General Hoist Ring Specications
Category Specication
Material 4140 cer tied aircraft quality
Type Forged hoist ring
Finish Phosphate per DOD-P-16232F
Safety Factor 5:1
Swivel Pivot 180° and swivel 360°
Thread ISO 261 and ISO 965 - Coarse
Surface Magnetic particle inspected (ASTM E709-80)
Certication Individual certicate of conformance with the serial number specied on the hoist ring
for traceability
v 2.2 — March 2021 Unify Manifold System
48 Lifting Using Swivel Hoist Rings