A brand-new excavator rolls off the truck, hour meter reading a clean handful of hours, paint still showing dealer stickers. Six weeks later it's back in the shop with a hydraulic leak nobody expected from a machine this young. It feels like bad luck, but reliability engineers have a name for this pattern, and it isn't random. New equipment fails early for specific, identifiable reasons, and almost all of them are catchable before the machine ever reaches a job site.
Early-life failures, known as infant mortality, stem from manufacturing defects, installation errors, and skipped commissioning steps rather than normal wear. A structured 48-hour burn-in run can significantly reduce these failures before a machine ever starts productive work, and most bearing, alignment, and electrical faults that surface in the first 90 days trace back to a commissioning step that was rushed or skipped entirely.
Understanding the Bathtub Curve of Equipment Failure
Reliability engineers describe equipment failure risk across three phases that together form what's known as the bathtub curve, and understanding where new equipment sits on that curve explains why early failures happen and how to prevent them.
Why the First 90 Days Matter So Much
Bearing failures, alignment faults, and electrical faults clustered in the first 90 days of operation almost always trace back to something that happened before the machine ever moved dirt: an installation step skipped, a fluid check missed, or a preventive maintenance schedule that got entered into the system only after the first breakdown instead of before the first shift. Once a machine has already accumulated its most critical early wear cycles without structured oversight, correcting course gets far more expensive.
FleetRabbit logs commissioning steps, hour meter readings, and defect documentation the moment a new machine arrives, so nothing slips through before first use. Sign up to build your commissioning checklist digitally, or book a demo to see how early defect tracking works.
Building a Commissioning Process That Catches Defects Early
Every new piece of equipment, whether purchased, leased, or rented, should pass through a structured commissioning process before it enters productive work. Skipping straight from delivery to the job site is how untracked hours, undocumented transport damage, and warranty risk quietly build up from day one.
What a Complete Commissioning Process Covers
Delivery and Documentation Verification
Confirm make, model, and serial number against the purchase order, and record the exact hour meter reading at delivery. New equipment should show under 10 hours; anything higher is worth a direct question to the dealer before signing off.
Physical and Transport Damage Inspection
A full walk-around checking for bent guards, cracked glass, hydraulic line damage, or dented panels catches transport-related issues before they get blamed on operation weeks later.
Safety System and Fluid Validation
Verify that safety interlocks function correctly and that fluid levels, hydraulic pressures, and operating temperatures fall within OEM specification before the machine runs its first productive cycle.
Digital Asset Record and Operator Training
Create the asset's digital record with warranty terms attached, and confirm the assigned operator has been trained on that specific machine's controls and load limits before handover is considered complete.
| Commissioning Step | What It Prevents | Common Failure If Skipped |
|---|---|---|
| Hour Meter Verification | Undisclosed prior use or demo hours | Warranty disputes over actual machine age |
| Transport Damage Inspection | Damage misattributed to operation later | Denied warranty claims for pre-existing damage |
| Installation Verification | Alignment and setup errors baked in from day one | Early bearing failures and alignment faults |
| Burn-In Monitoring | Hidden manufacturing defects surfacing on the job | Mid-shift breakdowns during the first weeks of use |
| PM Schedule Entry Before First Shift | Unmanaged wear accumulating with no baseline | Bearing failures clustering in months two through six |
Protecting Warranty Coverage During Break-In
A warranty is only worth what you can prove. When a component fails well inside the coverage window on paper, claims still get denied more often because of missing documentation than actual ineligibility. The OEM needs a clean, complete story from purchase to failure, and commissioning records are the first chapter of that story.
Common Reasons Warranty Claims Fail
Claims typically must be filed within a prescribed window after repair, sometimes as short as seven days, which leaves almost no room for scrambling to find service records after the fact. Operating a machine outside its rated envelope gets treated as misuse rather than a covered defect, which is exactly why documenting correct commissioning and operation from day one matters so much. Without a detailed maintenance log showing dates, hours, and the specific work performed, an OEM has every reason to argue the failure was neglect rather than a manufacturing defect.
FleetRabbit ties every commissioning step, fault code, and service record to the right machine and warranty window automatically. Book a demo to see how it prevents missed or denied claims, or sign up to start tracking new equipment from delivery day one.
Key Takeaways
Break-in failures feel like bad luck, but reliability data tells a different story: infant mortality is driven by defects, installation errors, and skipped commissioning steps, almost all of which are catchable before a machine ever reaches the job site. A structured burn-in period, a thorough delivery inspection, and a preventive maintenance schedule loaded before the first shift are what separate a new machine that runs reliably for years from one that's back in the shop within weeks. Just as important, clean commissioning records are what turn a legitimate warranty claim into an approved one instead of a denied one.
Don't let a rushed handover turn into an early failure or a denied warranty claim. FleetRabbit tracks every commissioning step, hour meter reading, and service record from the moment new equipment arrives. Start your free trial today with no credit card required.
