When Does an Equipment Warranty Actually Start?

IPS Inc.

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October 19, 2026

Equipment warranties are written as a period: one year, two years, a number of operating hours. Far less attention goes to the date that period is counted from, even though it decides which claims are covered and which are not. The dealer manual published by aerial work platform manufacturer MEC Aerial Platform Sales Corp. shows how that date is set in practice. Its limited warranty runs for one year “from date of registered sale or date the unit left the factory if not registered,” and the dealer must complete the registration card “upon delivery to your customer OR entering the machine into rental service.”

The start of the warranty, in other words, depends on a form filled in by the dealer. When the form arrives late, or not at all, the warranty clock runs from a different day than the one the machine actually went to work.

Key Takeaways

  • Equipment warranties are often written to run from the date of sale or first use, not from the day the machine left the factory.
  • That date usually depends on the dealer submitting a registration, so a late or missing registration moves the start of coverage.
  • A machine can work for weeks as a demonstration or rental unit before a customer owns it, which a registration date alone does not show.
  • A machine that records its own first hours of use gives the manufacturer, dealer and customer a start date none of them has to argue about.

A new scissor lift being unloaded from a flatbed truck at a dealer's yardThree Dates That Can All Claim to Be the Start

Every new machine has at least three dates that could start a warranty. There is the day it left the factory. There is the day it was sold or delivered to the customer. And there is the day it first went to work, which may be earlier than the sale if the dealer used it, or later if the customer did not put it into service straight away.

Between the first and the second, a machine can sit at a dealer for a long time. Stock is ordered ahead of the season, held for a customer, or simply slow to sell. A warranty that started at shipment would spend some of its life covering a machine that no one was using, and the customer would receive less coverage than the period on the certificate suggests.

That is why warranties such as MEC’s start at the registered sale rather than at shipment. It is also why the start date has to be recorded by someone, and why that record is so often the weak link.

The Start Date Depends on a Form

The MEC manual is clear about what happens when the form is missing: “if no registration card is submitted, the warranty period begins on the date of shipment.” That rule is reasonable. Without a registration, the factory has no other date it can rely on.

But it shows how much rests on one administrative step. A dealer that registers a machine promptly gives the customer the full warranty. A dealer that registers it weeks late, or forgets, quietly shortens it. The customer usually finds out only when a claim is refused for a machine they believed was still covered.

The manufacturer is affected too. A claim made eleven months after a late registration may be correctly inside the warranty or wrongly outside it, depending on a date that someone typed into a form. Disputes about coverage become disputes about paperwork rather than about the machine.

Rental and Demonstration Units Blur the Line

The MEC manual requires registration not only on delivery to a customer but on “entering the machine into rental service.” That reflects a reality of equipment sales. Many new machines work before anyone owns them, as rental units, demonstrators or trial machines.

Those hours matter. A machine that ran for a month on a rental contract before it was sold has used part of its life, and possibly part of its warranty, depending on how the terms are written. A demonstrator that has been moved between three customer sites has a history that the eventual buyer cannot see.

None of this is wrong. Rental and demonstration are normal parts of how equipment is sold. The problem is only that the record of it usually lives in the dealer’s systems, if it is kept at all, and does not travel with the machine.

Why the Manufacturer Needs the Right Date

A delivery form on a clipboard resting on a machine, with a pen beside itThe start date is not only a customer service question. Manufacturers use time in service to understand how their products behave. When does a component typically fail? How long does a machine run before its first claim? Are failures appearing earlier in this model than in the last one?

Each of those questions is measured from the start of service. If start dates are wrong, failures look earlier or later than they really were, and the engineering conclusions drawn from warranty data are wrong with them. Late registrations, or machines that worked as rentals before they were registered, make failures look earlier than they were and a reliable component look worse than it is. Machines never registered at all default to the shipment date, so time spent idle at a dealer is counted as service and a component can look more durable than it is.

Warranty cost depends on getting these facts right, as set out in how manufacturers reduce the cost of warranty claims. The start date is the first fact in that chain.

The Machine Changes Hands

The same problem returns whenever a machine changes owner. The MEC manual asks dealers who sell a unit from their rental fleet, or resell a customer’s machine, to send the factory the serial number and the previous and new owners’ details. Its reason is worth noting: “This will help us maintain contact with the machines through its service life.”

That is a manufacturer asking its dealers to keep its installed base record alive, one notification at a time. It works when dealers remember. When they do not, the manufacturer loses track of who owns the machine, which affects not only warranty transfers but recalls, service bulletins and parts planning.

What a Reliable Start Date Looks Like

A reliable start date is one that does not depend on memory or goodwill. It is recorded by the machine itself: the first hours of running, and where the machine was when they happened. Combined with the registration, it shows whether the machine worked before it was sold, how much, and when its first customer actually put it to use.

It also gives the hour limit a starting point. Many equipment warranties run for a period of time or a number of hours, whichever comes first, and the hour reading at the start matters as much as the date. A recorded runtime history settles both.

Whatever start rule a manufacturer chooses, shipment, sale or first use, the rule works only if the date can be verified. The point is not to change the policy. It is to make the policy checkable.

A new machine at work on a construction site in early morning lightWhere ARMOR™ Fits

ARMOR™ records the facts a warranty start date should rest on. ARMOR 4+™ wires into the machine’s electrical system and reports runtime hours, voltage and current into ARMOR Asset Central™, the system of record for runtime, location, condition and activity, so the first hours a machine ran, and where, are visible to the manufacturer, the dealer and the owner.

ARMOR™ does not set warranty terms, replace dealer registration or decide claims. It gives everyone involved the same record of when the machine went to work, and it sits alongside existing warranty and dealer systems rather than replacing them.

The unit installs non-destructively on standard wiring harnesses, with no bill-of-materials redesign. How it is built in at the production stage is set out on the ARMOR™ for Equipment Manufacturers page.

Frequently Asked Questions

Should a warranty start at shipment, sale or first use?

That is a policy decision, and each choice has tradeoffs for the manufacturer, the dealer and the customer. What matters most is that the chosen date can be established reliably when a claim arrives.

What if a machine sits at the dealer for months?

That is one reason warranties are often written to start at sale rather than shipment. A runtime record also shows whether the machine was idle during that period or was being used.

Do hours used for rental or demonstration count against the customer’s warranty?

It depends on how the terms are written, so state it explicitly. A runtime history shows exactly how many hours the machine had before its first owner took delivery.

Does a later owner get the remaining warranty?

That depends on the warranty. MEC’s, for example, is given to the original purchaser. Whatever the terms, the manufacturer needs to know when ownership changes, which is why its manual asks dealers to report resales.

See how ARMOR™ is built into equipment like yours, at the build stage. ARMOR™ for Equipment Manufacturers

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