Technical Explanation of R18 Series Batch Defect Incident

Dear RIPPA Customer：

Greetings!

In response to market feedback regarding track detachment on the R18 model and deformation at the lower frame travel motor mounting location, RIPPA R&D Center has performed testing and analysis. The findings, root causes, and corrective action plans are presented as follows:

I. Problem Description

Issue 1: The R18 model exhibits frequent track detachment.

Issue 2: The R18 model exhibits deformation at the lower frame travel motor mounting location.

II. Root Causes

The test analysis reveals the following root causes:

Issue 1: In the early stages of the R18 model, the assembly dimensions between the rubber track and the track rollers, drive sprocket, and idler wheel were poor, with no fit standards in place. This caused the track to detach easily, and the design did not standardize fit clearances.

Issue 2:
(1) The structural strength at this location was insufficiently designed.

(2) Excessive track tension caused continuous pulling force on the lower frame mounting location from the travel motor and drive sprocket. During operation, impact loads are superimposed, keeping this location in an overloaded state, ultimately resulting in deformation.

III. Corrective Actions

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

Issue 1: The idler wheel, drive sprocket, and track rollers have been re-matched with increased rim height, thickness, and gear tooth height. Optimization has been completed.

Issue 2: Optimized the lower frame motor mounting location by adding two welded reinforcing ribs.

Replacement Parts List (Per Unit)

Recall Process

1. Submit your VIN code for verification via
https://recall.rippa.com/submit,
or scan the QR code below to access the verification page.

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. If your vehicle is not covered by this recall batch, you can also contact us for any abnormal issues via the after-sales service ticket QR code below.

4. After completing the repair, upload the repair verification photos. Once the photos are reviewed and confirmed, the repair subsidy will be deposited into the designated account within 15 working days.

Attachment: 8D Report

Recall Verification

After-sales Service Work Order

IV. Conclusion

We sincerely apologize for any inconvenience this issue has caused you. RIPPA will continue to follow up on the progress to ensure the normal operation of your equipment.

Best regards!