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Published 17 Apr 2019 Ref JP-1144610

Yanmar/Komatsu: Other (Power Transmission)

Translated from Japanese · machine translation

Country
Japan
Published
17 Apr 2019
Units affected
417
Reference
JP-1144610

Affected vehicles

Komatsu WA10-1 2007–2018 Komatsu WA10-6 2007–2018 Yanmar V1-1A 2007–2018

Hazard

In the fluid power transmission system of shovel loaders, the hydraulic hose coupling connecting the HST pump and motor has an improper shape, resulting in insufficient coupling strength in some units. Depending on work load and frequency, cracks may develop in the coupling, risking leakage of hydraulic fluid.
Show original (日本語)
ショベルローダの流体動力伝動部において、HSTポンプとモータを結ぶ油圧ホース接続継手の形状が不適切なため、継手の強度が不足しているものがある。そのため、作業中の負荷や頻度によって継手に亀裂が生じ、作動油が漏れるおそれがある。

Remedy

Replace the coupling with a corrective part on all vehicles.
Show original (日本語)
全車両、継手を対策品に交換する。

Official source

View the official recall notice