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Steering Published 30 Apr 2014 Ref JP-1133541

Iseki: Clutch Cable/Lock

Translated from Japanese · machine translation

Safety-critical recall — steering. If your vehicle is affected, contact your dealer before driving.
Country
Japan
Published
30 Apr 2014
Units affected
1038
Reference
JP-1133541

Affected vehicles

ヰセキ HN211 2013–2014 ヰセキ HN214 2013–2014 ヰセキ HN217 2013–2014 ヰセキ HN319 2013–2014

Hazard

In the power transmission device of a combine harvester, the side clutch shifter that controls steering has insufficient strength, and hydraulic control at low oil temperatures (20°C or below) is inappropriate in some units. As a result, higher-than-expected hydraulic pressure is generated during steering, causing the side clutch shifter to deform. If operation continues in this condition, in the worst case, the machine may not return to straight travel even when steering is returned to neutral after steering.
Show original (日本語)
刈取脱穀作業車の動力伝達装置において、操舵を制御するサイドクラッチシフタの強度が不足及び低油温(20℃以下)時の油圧制御が不適切なものがある。そのため、操舵時に想定より高い油圧が発生することによりサイドクラッチシフタが変形しそのまま使用を続けると、最悪の場合、操舵後に直進状態に戻そうとしても直進しないおそれがある。

Remedy

All units: Replace the side clutch shifter with a service part. Additionally, replace the variable relief valve arm and valve seat inside the relief valve with service parts to reduce hydraulic pressure during low oil temperature operation (20°C or below).
Show original (日本語)
全車両、サイドクラッチシフタを対策品に交換するとともに、低油温時(20℃以下)の油圧制御を低減させるため、可変リリーフバルブアーム及びリリーフバルブ内のバルブシートを対策品に交換する。

Official source

View the official recall notice