Teknisk redegjørelse for hendelsen med seriefeil i rullelagrene på RS06-banen

Dear RIPPA Customer:

Regarding the market-reported RS06 track roller bearing failure issue, RIPPA R&D Center has conducted testing and analysis. The identified problems, root causes, and corrective actions are described below:

1. Problembeskrivelse

During machine operation, the rear track roller exhibits damage/failure.

1. Grunnleggende årsakerThe test analysis reveals the following root causes:

• 1)The original bearing is a deepgroove ball bearing, which can carry relatively high radial (vertical) loads, but cannot withstand lateral (axial) forces generated during machine turning over extended periods.
• 2)The track roller shaft drawing has no hardening requirement; its strength and hardness are insufficient for longterm service requirements.

III. Corrective Actions

To address the above issues, our company will implement the following corrective measures:

Replace ball bearings with tapered roller bearings. This bearing type provides superior loadcarrying capacity: vertical (radial) load capacity is approximately 1.68 times that of ordinary ball bearings, and lateral (axial) load capacity-the key differentiator -is more than 10 times that of ordinary ball bearings.

Add a hardness requirement of HRC 58–62 for the track roller shaft. Additionally, incorporate hardness testing into the inspection criteria, with testing performed on each batch.

In response to the above countermeasures, we conducted sampling tests on 10 units of this model in our plant, and all test results met the applicable testing standards.

For the above problem resolution plan, our company will initiate a recall process for affected units, providing free replacement parts, repair work instructions, repair videos, and other services for all involved product vehicles.

Affected Vehicle Models：

LP02280005U02
LP02280005U02-Selfpropelled Skid SteerRS06-2-FZ-JBT(D1105)-ZS-0-0-FS-0-XJ-CY

LP02280005U03
LP02280005U03-Selfpropelled Skid Steer RS06-3-FZ-JBT(D1105)-ZS-0-0-FS-0-XJ-CY

Replacement Parts List (Per Unit)：

Visit the machine recall service website.

Recall Process

• https://recall.rippa.com/submit

1. Send inn VIN-koden din for verifisering via https://recall.rippa.com/submit, eller skann QR-koden nedenfor for å komme til verifiseringssiden.
2. Fill in your personal information in the recall section to facilitate parts dispatch to your designated shipping address. After submission, the parts will be shipped within 7 days
3. Hvis kjøretøyet ditt ikke er omfattet av denne tilbakekallingsomgangen, kan du også kontakte oss ved eventuelle uregelmessigheter ved å skanne QR-koden for kundeservice nedenfor.
4. Når reparasjonen er fullført, må du laste opp bildene som bekrefter at reparasjonen er utført. Så snart bildene er gjennomgått og godkjent, vil reparasjonstilskuddet bli utbetalt til den angitte kontoen innen 15 virkedager.

Attachment: 8D Report

Bekreftelse av tilbakekalling

Arbeidsordre for ettersalgsservice

Konklusjon

Vi beklager på det sterkeste ulempene dette problemet har medført. RIPPA vil fortsette å følge opp fremdriften i løsningen for å sikre at utstyret ditt fungerer som normalt.

Med vennlig hilsen!