Free lifting shackle inspection checklist
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Free lifting shackle inspection checklist covering bow diameter, pin thread, tag legibility and discard criteria per AS 2741, ASME B30.26 and AS 4991.
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Updated 25 May 2026
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What is a lifting shackle inspection checklist?
A lifting shackle inspection checklist is the component-level record used by a competent person to inspect each shackle in service and decide whether it stays in the rigging gear box, goes on the watch list, or is retired and destroyed. The inspection covers both bow shackles, which take loads from multiple directions, and dee shackles, which are intended for in-line load only, and both screw-pin and bolt-type variants. Identification is the first step because a shackle without a legible manufacturer mark, WLL, batch number and certification standard is non-compliant under AS 2741 regardless of measurable condition. Key technical measurements include bow diameter at the midpoint compared against the OEM nominal where a 10 percent reduction is the typical discard threshold, pin diameter at the thread root compared against nominal, pin engagement to confirm full thread engagement of the pin into the lug, bow elongation across the inside dimension where a 5 percent elongation is the typical discard threshold, and a visual walk for gouging, corrosion, side load damage, thread damage on the pin and any heat or weld damage on the body.
AS 2741 (Shackles) is the Australian standard that sets shackle dimensions, identification and discard criteria for general lifting, AS 4991 (Lifting devices - General) sets the wider load-bearing requirements, ASME B30.26 (Rigging hardware) is the international reference that most OEM and import shackle manufacturers point to, and WHS Regulations 2011 Chapter 5 carries the PCBU plant inspection duty. A shackle retired from service is physically destroyed by cutting through the bow because shackles are low-cost consumable items and the cost of a retired shackle re-entering service is catastrophic. Side-load damage on a dee shackle is one of the highest-frequency findings on a shackle inspection because riggers regularly mis-apply dee shackles in two-leg sling configurations where the load is no longer pure in-line. A printed checklist supports the rigger inspector at the gear box, and a digital record in MapTrack ties each shackle to a batch register so the inspection cadence runs on the batch rather than against a single asset, which matches how most sites manage their shackle inventory across multiple WLL grades.
Learn more about compliance and inspections in MapTrack.
Benefits of using this lifting shackle inspection checklist
- Discard-criteria accountability: Each shackle decision is signed against the competent inspector who measured bow diameter and pin engagement, not a generic gear-box signature
- AS 2741 and ASME B30.26 alignment: The checklist captures the exact discard criteria from both standards so audits and OEM warranty claims are straightforward
- Tag-legibility enforcement: A shackle without a legible WLL, manufacturer mark and batch number is retired regardless of measurable condition
- Batch-level traceability: Shackles are inspected and retired by batch number rather than against a single asset which matches how most sites manage rigging gear
- Destruction discipline: Retired shackles are cut through the bow and photographed before disposal, preventing a retired shackle re-entering service
- Side-load damage interception: Bow elongation measurement intercepts side-load damage on dee shackles before the bow opens under load
- Audit-ready evidence: A stamped, dated batch record satisfies the WHS Regulations 2011 Chapter 5 expectation for a competent-person inspection layer over operator pre-starts
Benefits of digitising forms in MapTrack
When you digitise lifting shackle inspection checklists in MapTrack, you get:
- Field users can easily scan a QR code to complete a form on mobile. Unlimited users.
- Automatically get alerts when faults are identified.
- Link every form digitally as a PDF to the relevant asset, location or person.
- Receive a digital PDF copy with every submission to your email.
- Ability to share forms digitally.
- Build conditional logic (show or hide questions based on answers).
- Take pictures or attach photos. Not possible with a paper-based form.
- Electronic signatures.
- Edit forms later without reprinting.
- Restrict permissions (who can view, complete or approve).
- Build forms with AI (describe what you need and MapTrack suggests the form).
- Escalate critical hazards instantly to safety managers via push notification.
- Maintain an auditable safety register that satisfies WHS regulator requests.
- Correlate incident trends across sites with built-in safety analytics.
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What to include in a lifting shackle inspection checklist
This lifting shackle inspection checklist covers 12 key areas:
- Shackle identification: WLL stamp, manufacturer mark, batch or serial number, certification standard, all clearly legible without doubt
- Shackle type confirmation: bow shackle vs dee shackle, screw-pin vs bolt-type, confirmed against the rigging configuration the shackle is used in
- Bow diameter measurement: vernier measurement at the bow midpoint compared against OEM nominal, with 10 percent diameter reduction as the typical discard threshold
- Pin diameter at thread root: vernier measurement at the thread root of the pin compared against OEM nominal, with 10 percent reduction as the typical discard threshold
- Pin engagement check: pin screwed fully into the lug with full thread engagement, no thread bottoming out short of engagement
- Bow elongation: across the inside dimension of the bow compared against OEM nominal, with 5 percent elongation as the typical discard threshold
- Pin thread condition: thread damage on the pin checked for gouging, cross-threading, stripped thread or burrs
- Surface damage: gouging, nicking, weld splatter, arc burn, corrosion pitting or paint loss documented and graded against discard criteria
- Side load damage: shackle bow checked for bending or distortion from side loading, particularly on dee shackles which are intended for in-line load only
- Heat or weld damage: shackle body inspected for heat marks, paint discolouration or any attempt at weld repair which is grounds for immediate retirement
- Locking device: bolt-type shackle nut and split pin in place and undamaged, screw-pin tightness verified before lift
- End-of-life decision: keep in service, retire and destroy now (cut through bow before disposal)
How to use this lifting shackle inspection checklist
- 1. Plan the inspection and set up the bench: pull the rigging gear register including batch numbers, install dates and previous inspection records, set up a clean inspection bench with vernier callipers, OEM nominal dimension sheet, camera, retirement tag stickers and bolt cutters for destruction of retired shackles
- 2. Identify each shackle and check tag legibility: confirm WLL stamp, manufacturer mark, batch or serial number and certification standard are all legible without doubt, retire any shackle where any one of these marks is unreadable, photograph the markings for the batch record
- 3. Confirm shackle type against use: confirm bow shackle versus dee shackle, screw-pin versus bolt-type, against the rigging configurations the shackle is rated to be used in, flag any shackle being used outside its rated configuration
- 4. Measure bow diameter at midpoint: use vernier callipers to measure the bow diameter at the midpoint of the shackle bow, compare against the OEM nominal and the 10 percent diameter reduction discard threshold, retire any shackle at or beyond threshold
- 5. Measure pin diameter at thread root: use vernier callipers to measure the pin diameter at the thread root, compare against the OEM nominal and the 10 percent reduction discard threshold, retire any pin at or beyond threshold even if the shackle body is in good condition
- 6. Check pin engagement and thread condition: screw the pin into the lug and confirm full thread engagement with no bottoming out short of engagement, inspect the pin thread for gouging, cross-threading, stripped thread or burrs that compromise engagement
- 7. Inspect bow elongation: measure the inside dimension of the bow against OEM nominal and the 5 percent elongation discard threshold, this measurement intercepts side-load damage on dee shackles which are intended for in-line load only
- 8. Walk the surface for damage: inspect the shackle body for gouging, nicking, weld splatter, arc burn, corrosion pitting and paint loss, flag any heat marks or attempts at weld repair which are grounds for immediate retirement, confirm the locking device is in place on bolt-type shackles
- 9. Make the end-of-life decision and destroy retired shackles: mark each shackle as fit for service or retire-and-destroy, cut through the bow of any retired shackle with bolt cutters before disposal, photograph the destroyed shackle for the record, update the batch register in MapTrack and set the next batch inspection date
In MapTrack, you can digitise safety inspections and compliance forms. Each submission is stored as a timestamped PDF against the asset record.
Get the free templateEnter your email above to download the full lifting shackle inspection checklist as a PDF.Back to download formHow often should you complete this inspection checklist?
AS 2741, ASME B30.26 and AS 4991 set the inspection cadence the shackle inspector should follow. The rigger runs a visual pre-use check before every lift, looking for obvious damage, tag legibility, pin engagement and bow distortion. A monthly visual inspection by a trained rigger covers each shackle in the gear box for obvious damage, tag legibility and pin condition. A quarterly inspection by a competent person measures bow diameter, pin diameter at thread root and bow elongation against discard criteria. A 12 monthly major inspection by a competent person covers every shackle in every gear box on site and sits inside the annual rigging gear audit. Any shock load, dropped object, side load on a dee shackle, heat exposure, chemical contamination or near-miss event triggers an out-of-cycle inspection of every shackle in the affected gear box. In MapTrack the shackle inspection schedule sits against the batch number so a new batch resets the clock automatically for the whole batch.
Frequently asked questions
Applicable regulatory standards
This template aligns with the following regulations and standards:
- AS 2741 (Shackles)
- ASME B30.26 (Rigging hardware)
- AS 4991 (Lifting devices - General)
- WHS Regulations 2011 Chapter 5
- Safe Work Australia Code of Practice 2018: Managing Risks of Plant in the Workplace
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<p style="font-size:12px;font-weight:700;letter-spacing:0.05em;text-transform:uppercase;color:#0E7490;margin:0;">Free template</p>
<p style="font-size:18px;font-weight:700;color:#071D49;margin:6px 0 0;">Lifting Shackle Inspection Checklist</p>
<ul style="margin:12px 0 0;padding-left:18px;color:#374151;font-size:14px;line-height:1.6;">
<li style="margin:4px 0;">Shackle identification: WLL stamp, manufacturer mark, batch or serial number, certification standard, all clearly legible without doubt</li>
<li style="margin:4px 0;">Shackle type confirmation: bow shackle vs dee shackle, screw-pin vs bolt-type, confirmed against the rigging configuration the shackle is used in</li>
<li style="margin:4px 0;">Bow diameter measurement: vernier measurement at the bow midpoint compared against OEM nominal, with 10 percent diameter reduction as the typical discard threshold</li>
<li style="margin:4px 0;">Pin diameter at thread root: vernier measurement at the thread root of the pin compared against OEM nominal, with 10 percent reduction as the typical discard threshold</li>
<li style="margin:4px 0;">Pin engagement check: pin screwed fully into the lug with full thread engagement, no thread bottoming out short of engagement</li>
<li style="margin:4px 0;">Bow elongation: across the inside dimension of the bow compared against OEM nominal, with 5 percent elongation as the typical discard threshold</li>
</ul>
<p style="font-size:13px;color:#6B7280;margin:14px 0 0;padding-top:12px;border-top:1px solid #E5E7EB;">Free <a href="https://www.maptrack.com/templates/lifting-shackle-inspection-checklist" style="color:#071D49;font-weight:600;text-decoration:none;">Lifting Shackle Inspection Checklist</a> by MapTrack</p>
</div>Please keep the “by MapTrack” attribution link in the snippet.
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