Polyester Web Slings
|Polyester Web Slings|
|280014||70003218||240059||280024||280025||TT||TC||800C SERIES||VIKING EE2||980212V|
Operating Practices for Alloy Chain Slings
- Can Fail if Damaged, Misused or Overloaded.
- Inspect Before Use.
- Use Only if Trained.
- Observe Rated Load.
- Pad Edges of Load to Avoid Damage to Sling.
- Death or Injury can Occur from Improper Use or Care.
Instructions for Care, Use, Inspection and Repair of Alloy Chain Slings
- Store on a rack away from possible mechanical damage, corrosion, dust, grit, extreme temperatures, sun and any ultraviolet light source.
- Do not anneal (temper) alloy chain, connecting links or hooks. Hot galvanizing requires chain manufacturer’s advice.
- Check weight of load.
- Check tag to confirm that sling is rated adequately for the load (see load angle chart).
- Sling shall not be twisted, tied into knots or joined by knotting.
- Be sure the load cannot cut the sling during the lift by padding corners, edges, protrusions, or abrasive surfaces; use materials of sufficient strength and thickness.
- Center load on base (bowl) of hook unless sling hook is designed for point loading.
- Balance the load.
- Maintain load control.
- Avoid jerking the load.
- Be alert for snagging of load.
- Avoid dragging sling over rough surfaces and from under the load.
- Choker hitch must choke on sling body, never on end fitting.
- Always stand clear of load.
- Persons are not to ride on sling or load.
- If sling is to be used in a chemical environment or in temperatures below -40° f or above 400°F. Contact manufacturer for specific recommendations.
- When shortening chain, use only the manufacturer’s recommended alloy components.
- Before each use, check for nicks, gouges or excessive wear.
- Inspect for bent, twisted, deformed chain or components.
- Inspect for heat damage, weld spatter, pitting or corrosion, increase in hook throat opening, missing latch (if so equipped).
- If this wear or damage is present, if rated load tag is missing or illegible, remove from service and repair or replace sling.
- Periodic inspections are required at least annually for normal service, quarterly or more frequently if in severe service or nearly constant use.
- Periodic inspections are performed only by chain manufacturer or other designated person who records the observed condition and determines when further use would be hazardous.
- Any hazardous condition disclosed by an inspection shall require repair by chain manufacturer or other qualified person.
Load Angle for Slings
- Angle factor must be applied to calculate the reduced sling capacity when lifting force is not at 90º to the plane of the load.
- Multiply angle factor x sling's vertical rated load to calculate the reduced capacity at that angle.
- Because of the greatly reduced lifting capacity, use extra care when the sling to load angle, also known as the horizontal angle, is less than 45° and do not make lifts of less than 30°load angle.
- Example: a sling with adequate capacity could be broken because of increased tension resulting from angles of less than 30°.
|Sling Load Angle Chart|
- Exceeds industry standards for Grade 100 chain slings.
- Can be used for all types of chain applications.
- Sling's high-visibility green finish enhances workplace safety.
- Standard lengths available from 5' - 20', custom lengths available upon request.
- Made in the U.S.A. Ships in 4-7 business days. Covered by standard manufacturer's warranty.
Choke Angle Effect for Slings
|Sling Choke Angle Effect Chart|
|Angle of Choke||Rated Capacity*|
|*Percent of Sling Rated Capacity in a Choker Hitch|
D-d Ratio for Slings
- Rated capacity of the sling shall be decreased when D:d Ration will be smaller than that cited in the latest revision of ASME B30.9 Ch2.
- Consult the sling manufacturer for specific data or refer to the WRTB Wire Rope Sling User's Manual.
- General Note: When the (D) is 25 times the component rope diameter (d), the D:d Ration is expressed as 25:1.
|Dry Cleaning Solvents||OK||OK|
|Soaps & Detergents||OK||OK|
|Water & seawater||OK||OK|
|* Disintegrated by concentrated sulphuric acid|
|** Degraded by strong alkalis at elevated temperatures|