Below are practical, safety-focused guidelines for storing and maintaining slings (web, round, synthetic rope), chains (grade alloy load‑bearing chain), and wire rope. Use these as a workplace standard — adapt to the manufacturer’s instructions and any site-specific rules.
General storage principles (applies to all types)
- Store in a clean, dry, well‑ventilated area away from direct sunlight, heat sources, moisture, chemicals, and corrosive atmospheres. UV, ozone, acids, alkalis and solvents degrade materials.
- Keep off the floor on racks, shelves, or hangers. Avoid contact with standing water or concrete floors that retain moisture.
- Segregate by type, capacity, and length; label clearly (ID tag showing capacity, length, inspection date, owner).
- Protect from mechanical damage and sharp edges — use padded racks or dedicated bins. Don’t pile or crush.
- Keep storage area organized so items can be lifted and removed without dragging, bending, or stepping on other items.
- Maintain a written inventory, inspection records and retirement history for each sling/rope/chain.
Web and synthetic slings (nylon, polyester, round slings, braided slings)
Storage
- Hang slings on rounded pegs or in racks so they are not folded tightly or kinked. Avoid sharp bends that can crush fibers.
- Shield from sunlight/UV and ozone (store inside or in a covered container).
- Keep away from solvents, paints, acids, alkalis, rough surfaces and high heat sources.
Inspection & maintenance
- Inspect before each use and perform periodic formal inspections (frequency depends on use — daily/weekly for frequent use; monthly/quarterly for light use).
- Look for: cuts, tears, punctures, holes, pulled threads, broken or worn stitching, melted or charred areas, abrasive wear, chemical staining, excessive soiling, distortion of fittings, or any condition that could affect strength.
- Remove from service if you find: cuts or tears through load-bearing fibers; broken or missing stitches on round slings; melted/singed or burned areas; discoloration from chemical attack; distortion of fittings; or other damage per manufacturer criteria.
- Clean with mild detergent and water, rinse thoroughly, dry away from heat and sunlight. Do not use bleach, solvents, or harsh cleaners.
- Store with end protection (sleeves) where slings contact hooks or edges.
- Mark slings with ID and rated capacity; if marking fades, re‑tag per manufacturer standards rather than writing on fibers.
Chain slings (alloy load chain)
Storage
- Hang on racks or pegs so links are not resting on sharp edges; coat lightly with oil for corrosion protection if stored long‑term.
- Keep out of corrosive atmospheres and away from electrochemical contact with dissimilar metals.
Inspection & maintenance
- Inspect before each use and perform periodic thorough inspections by a competent person (frequency based on usage).
- Look for: nicks, gouges, corrosion pitting, elongation/stretching, bent/twisted/flattened links, cracked links, worn attachments, excessive wear at contact points, heat damage (discoloration/tempering colors).
- Measure chain wear: if link thickness or pin diameter is reduced beyond manufacturer allowable limits (commonly 10%–15% wear) or chain has stretched/elongated beyond limits, remove from service.
- Check hooks and components for deformation, cracks, throat opening increase, or damaged safety latches. Replace rather than try to re‑bend or repair bent hooks.
- Lubricate pivot points lightly if specified by manufacturer; do not over‑oil where it could attract dirt or compromise connections.
- Never weld, hammer, or heat treat load‑bearing chain or hooks in the field — this can ruin temper and strength.
Wire rope
Storage
- Store coiled or on drums/reels with the original end secured to prevent uncoiling. Avoid kinking, birdcaging or crushing.
- Keep covered to protect from moisture and contaminants; if long‑term, apply light corrosion preventive coating as manufacturer recommends.
- Keep coils on their flats or supported so shape is not distorted.
Inspection & maintenance
- Inspect before each use and at regular intervals (frequency based on duty cycle, environment, and manufacturer guidance).
- Look for: broken wires, birdcaging, kinking, crushing, corrosion, flat spots, core protrusion, core separation, evidence of heat damage, severe wear at drum/groove/roller contact points, or reduction in diameter beyond allowable limits.
- Broken wire criteria: remove from service if number of broken wires in a certain length (e.g., 6 x diameter or specified reference length) exceeds manufacturer limits, or any single broken wire is of critical location. (Follow manufacturer or company policy for exact counts.)
- Lubricate wire rope as required — use rope‑compatible lubricants that penetrate to the core; apply after cleaning to displace moisture and reduce abrasion.
- Clean with a brush and solvent that will not harm the lubricant or rope. Replace rope showing birdcaging, kinks, severe corrosion, or broken wires beyond allowed counts.
- Use correct spooling/reeving methods; avoid crossing layers improperly that can cause crushing or core damage.
Handling practices (all types)
- Do not drag slings, chains or wire rope across abrasive surfaces. Use protective sleeves or edge protection when lifting around sharp edges.
- Avoid shock loading and side loading unless equipment is designed for it.
- Don’t shorten by tying knots — use approved fittings or shackles rated for the application.
- Use proper sized hooks, shackles, thimbles, and fittings; never force incompatible components together.
- Train personnel in correct rigging, inspection and storage procedures.
Retirement and removal criteria (practical signs)
- Visible deformation, cracking, or extensive corrosion.
- For synthetic slings: broken stitching, severe cuts, melted or chemically attacked fibers.
- For chains: bent, cracked, or elongated links; missing or damaged components; wear beyond allowable limits.
- For wire rope: birdcaging, kinking, core protrusion, excessive broken wires, diameter reduction from corrosion/wear beyond limits.
- Any sling, chain or rope involved in an overload, shock load, or suspected damage event — remove and tag for inspection by a qualified person.
Recordkeeping & labeling
- Tag each item with ID, rated capacity, date of purchase, and last inspection date.
- Keep inspection records for each item and a documented retirement history.
- Use color coding or tagging systems to indicate condition (OK, restricted, condemned).
Manufacturer & standards
- Follow manufacturer instructions and rated capacity exactly.
- Adopt recognized industry standards/best practice (inspection intervals, retirement criteria, measurement tolerances) as your company policy — e.g., rigging and lifting standards and sling manufacturer guidance.
Quick checklist to store and maintain
- Store dry, out of sunlight, off the floor, protected from chemicals.
- Hang synthetic slings; reel or coil wire rope; hang chain.
- Inspect before use and keep scheduled formal inspections.
- Clean appropriately; lubricate chain/wire rope per manufacturer.
- Tag, log, and retire damaged items immediately.
- Train users and limit repairs to manufacturer/qualified person recommendations.
If you want, I can give:
- A printable pre‑use inspection checklist for each type (web/chain/wire rope), or
- Typical inspection frequency guidelines and example retirement measurement limits (note: exact numeric limits are manufacturer/standard dependent).