Excavator Undercarriage After Transport Chain Contact: Recording What the Chain Touched

When a transport chain has touched an excavator, the record should show where it made contact, what the marks are limited to, and what the loading and unloading photographs show about the securement route. A mark in the coating is a different finding from a mark that reaches an edge, a hose, a seal area or a tie-down interface, and none of it tells you who is responsible. Describe what is visible and leave cause open.

Where the chain touched

Canadian securement rules address the contact point. National Safety Code Standard 10 says an edge protector must be used where a tiedown would be subject to abrasion or cutting at the point where it touches cargo, and that the protector must resist abrasion, cuts and crushing and allow the tiedown to slide freely. Alberta's cargo securement module restates the edge-protection requirement. A heavy-equipment tie-down guide from Whiparound adds that manufacturer-designated tie-down or lashing points should be used when provided, since they are engineered for securement loads, and that edge protection is required wherever a tiedown would otherwise rub against a sharp edge or corner of the equipment.

These sources describe how securement is supposed to be done. They don't establish how this machine was secured, so the record should capture what actually happened, as reported and as photographed.

Record, by side and position:

• Which points on the machine the chains attached to, and whether they were marked tie-down points on the frame or undercarriage, or other parts.

• The route each chain took across the machine, including the surfaces it crossed.

• Whether edge protectors or sleeves were present, as visible in loading photographs.

• Any sharp edges, hoses, hydraulic lines or seal areas along the route.

TrucknTow's excavator guidance, which is an unrated source, notes that tie-downs contact many sharp edges on excavators, including grousers, bucket lips, cylinders and factory tie-down points. That is general guidance, but it supports photographing each contact area individually.

Reading the marks

Do any inspection from safe positions with the machine stopped and secured under its procedure. Do not run, lift or block the machine, rotate the tracks, release tension or enter a pinch zone to see more.

Marks near hoses and seals are the ones to hand to a qualified technician, because a visual inspection from outside can't establish what lies beneath. Don't wipe, wash or touch up marks before they are photographed.

Photographs that preserve the sequence

Freight-claim guidance is consistent that early documentation carries weight. Revcon Logistics advises taking photos before unloading, keeping the signed and annotated delivery receipt, and recording communications. Logrock advises preserving dock photos and any exceptions noted at pickup, preserving damaged straps or hardware until the carrier or adjuster says they are no longer needed, and starting a written timeline. Aldevra's freight checklist says damage should be noted on the bill of lading and that claims are commonly denied when damage is not written on it or the receipt is signed "clear."

Those sources concern freight in general, so use them as practice, not as rules for your agreement. For an excavator, one workable set is:

• Pre-loading photographs of the whole machine and of the areas where chains will later pass, taken as in any handover.

• Photographs of the secured load showing each chain's attachment points and route, taken from a safe position before chains are released, noting if that wasn't possible.

• Photographs at unloading of the same views, plus close-ups of each contact area.

• The tie-down hardware condition if it is visible, and any edge protectors used.

• The bill of lading and any delivery receipt, with exceptions written on them.

Each image should carry date, time, side and position, and a scale reference only where one can be placed safely.

Recording without guessing cause

Use one status per entry: changed, unchanged or unknown. A mark is "changed" only if the same view exists before loading under comparable conditions and shows no mark. Anything not photographed beforehand is "unknown," not "new." Record who loaded and secured the machine, and who unloaded it, as reported, and avoid wording such as "damaged by the carrier" or "improperly chained." Whether a mark relates to how the load was secured, or to something earlier, needs the loading evidence and, for hoses and seals, a qualified assessment. Responsibility depends on the agreement and the transport contract.

The record is complete when someone who wasn't there can tell where each chain touched the machine, what each mark is limited to, what the photographs show at each stage, and what remains unassigned.

If a component later needs replacement research, start from the machine's make, model and serial number and the photographs that identify the part, and treat the search as a separate task.

References

• Standard 10 Cargo Securement (National Safety Code, via CVSE)

• Module 9: Cargo Securement (Government of Alberta)

• DOT Tie-Down Requirements for Heavy Equipment (Whiparound)

• Machinery Load Securement: Excavator and Skid Steer Guide (Truck Trailer Pro)

• Freight Claims 101 (Revcon Logistics)

• Cargo Damage Insurance Claim Steps for Freight Damage (Logrock)

• Ice Machine Freight Inspection and Damage Checklist (Aldevra)