SUNWARD SWE35UF Idler Issues
Standard Components, Potential Issues, and Solutions
The Sunward SWE35UF is a well-regarded compact excavator known for its versatility, reliability, and cost-effectiveness. However, as with any piece of equipment, it’s essential to understand both its strengths and potential challenges. This is particularly true when considering the undercarriage, a critical component that ensures the machine’s stability and maneuverability.
Standard Undercarriage Components
The Sunward SWE35UF comes equipped with a standard undercarriage that includes tracks, rollers, idlers, and a tensioning system designed to keep the tracks in place. The standard track dimensions are 300x55x84, a specification that may present some unique challenges.
• Tracks: The machine is fitted with rubber tracks measuring 300 mm in width, with 55 mm between the guides, and 84 links.
• Idler Wheel: The idler wheel, which guides the tracks and maintains tension, is a crucial part of the undercarriage. On the SWE35UF, the idler wheel’s centerpiece is relatively narrow and low compared to some competing models, such as the Yanmar VIO35-6A.Potential Issues
Users have reported that the idler wheel on the SWE35UF might not provide sufficient guidance for the standard rubber track, leading to the track frequently derailing during operation. This issue is particularly problematic because the narrow and low centerpiece of the idler wheel does not adequately engage with the track’s guide, causing it to slip off under certain conditions.
Additionally, the standard track size (300x55x84) is not commonly stocked in the United States, which can pose availability issues when replacements are needed, potentially leading to downtime.
Satisfactory Solutions
To address these issues, several solutions have been identified:
1. Switching to Alternative Track Sizes:
• 300x52.5x88K or 300x52.5x88N Tracks: These tracks feature a slightly narrower guide width (52.5 mm) compared to the standard 55 mm, which can help reduce the likelihood of the track slipping off the idler wheel. Additionally, these sizes are more commonly available in the U.S., easing replacement concerns.
2. Comparing with Yanmar VIO35-6A:
• Users have noted that the idler wheel on the Yanmar VIO35-6A is slightly wider and higher, providing better guidance for the tracks. If feasible, modifying the idler wheel on the SWE35UF to mirror these dimensions could be a potential solution, though this would require custom engineering or aftermarket parts.
3. Consulting with Sunward or Aftermarket Solutions:
• It is advisable to reach out to Sunward or the authorized dealer to inquire about any updated idler wheel designs or aftermarket solutions that may have been developed in response to this issue. Sometimes manufacturers release upgraded parts to address such design shortcomings.By implementing these solutions, users of the Sunward SWE35UF can mitigate the undercarriage issues, ensuring smoother operation and reducing the risk of track derailment. Addressing this early can significantly enhance the machine’s reliability and longevity, making it a more effective tool for various construction applications.