Japan
Published 18 Oct 2019
Ref JP-1145580
Yanmar: Power transmission system
Translated from Japanese · machine translation
- Country
- Japan
- Published
- 18 Oct 2019
- Units affected
- 1249
- Reference
- JP-1145580
Affected vehicles
Yanmar YT357 2018–2019
Hazard
In the power transmission system of agricultural tractors, the small clearance between the primary transmission 1st speed gear and shaft creates restricted lubricant flow. This can result in insufficient lubricant supply and inadequate lubrication. Consequently, the sliding surfaces of the gear and shaft may seize, potentially rendering the vehicle inoperable in severe cases.
Show original (日本語)
農耕用トラクタの動力伝達装置において、主変速１速ギヤとシャフトの隙間が小さく潤滑油が流れにくい構造ため、潤滑油量が不足し、潤滑不良となるものがある。そのため、当該ギヤとシャフトの摺動部が焼き付き、最悪の場合、走行不能となるおそれがある。
Remedy
Replace the primary transmission 1st speed gear and shaft with improved components on all vehicles, and add a bearing.
Show original (日本語)
全車両、主変速１速ギヤとシャフトを対策品に交換し、ベアリングを追加する。