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Brakes Published 13 Feb 2020 Ref JP-1146690

UD Trucks/Hino: Other (Control Device)

Translated from Japanese · machine translation

Safety-critical recall — brakes. If your vehicle is affected, contact your dealer before driving.
Country
Japan
Published
13 Feb 2020
Units affected
14444
Reference
JP-1146690

Affected vehicles

Hino - 2017–2019 UDトラックス Quon 2017–2019

Hazard

In large truck air dryers, the pressure test connector for compressed air has inappropriate material composition. Components contained in compressed air produced by the air compressor and high pressure can cause corrosion cracking of the connector, resulting in compressed air leakage. As cracks progress, the compressed air supply becomes insufficient, causing the air pressure warning lamp to illuminate and an alarm to sound. In the worst case, the parking brake cannot be released, potentially rendering the vehicle immobile.
Show original (日本語)
大型トラックのエアドライヤーにおいて、圧縮空気の圧力テスト用コネクタの材質が不適切なため、エアコンプレッサで作られた圧縮空気中に含まれる成分及び高圧力等によって、当該コネクタが腐食割れして圧縮空気漏れを起こすことがある。そのため、亀裂が進行すると圧縮空気の供給量が追い付かなくなるため、エア圧力低下の警告ランプ点灯及び警報が鳴り、最悪の場合、駐車ブレーキが解除できなくなり走行不能に至るおそれがある。

Remedy

Replace the air pressure test connector with the corrective part on all vehicles.
Show original (日本語)
全車両、エア圧力テスト用コネクタを対策品に交換する。

Official source

View the official recall notice