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Fuel leak Published 6 Oct 2020 Ref JP-1148030

Hitachi/KCM/Toyota: Fuel Pump

Translated from Japanese · machine translation

Safety-critical recall — fuel leak. If your vehicle is affected, contact your dealer before driving.
Country
Japan
Published
6 Oct 2020
Units affected
5110
Reference
JP-1148030

Affected vehicles

KCM 50Z7 2014–2020 KCM 60Z7 2014–2020 Toyota 8SDT21 2014–2020 日立 ZW100-5B 2014–2020 日立 ZW100-6 2014–2020 日立 ZW120-5B 2014–2020 日立 ZW120-6 2014–2020 日立 ZX125W-6 2014–2020

Hazard

In the fuel pump of the shovel loader, demagnetization occurs at low temperatures due to improper selection of the permanent magnet inside the pump, causing the motor to operate at high speed and high current, resulting in abnormal brush wear. This causes contact failure, leading to fuel pump malfunction. In the worst case, the engine may stop during operation and fail to restart.
Show original (日本語)
ショベルローダの燃料ポンプにおいて、ポンプ内部の永久磁石の選定が不適切なため、低温時に減磁が発生し、モータが高回転・高電流となりモーターブラシが異常摩耗するものがある。そのため、接点不良が生じ、燃料ポンプが作動不良となり、最悪の場合、走行中にエンジンが停止し、再始動できなくなるおそれがある。

Remedy

Replace the fuel pump with the corrective component in all vehicles.
Show original (日本語)
全車両、燃料ポンプを対策品に交換する。

Official source

View the official recall notice