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三菱 Lkg-Fu54Vy, Lkg-Fu54Vz, Lkg-Fu55Vz, Lkg-Fv54Vz, Qkg-Fu54Vz, Qkg-Fu55Vz. Published by MLIT as 1131912 on 18 July 2013. Part: その他(制御装置).

What the notice says ②大型トラックのエアブレーキにおいて、マルチプロテクションバルブ(ブレーキのエアラインが失陥した際に失陥したエアライン以外の経路を遮断し他のエアラインのエア圧を確保するもの)内にあるレジューシングバルブ(後2軸車に装着された4バックエアサスペンション用のエアタンクとブレーキのエアタンクの圧力を切り替えるための減圧弁)のゴム部材質が不適切なため、圧縮空気中に含まれる油分によってゴム部が劣化するものがある。そのため、エアラインの減圧不良が生じ高圧になることでasrバルブが誤作動し、ブレーキの引き摺りを起こすものがある。そのため、そのままの状態で使用を続けるとブレーキが過熱し、最悪の場合、火災に至るおそれがある。

Is your vehicle included? Check with your VIN at MLIT, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.

Notification number
1131912
Notified
18 July 2013
Make
Mitsubishi(三菱)
Sold as
ふそうスーパーグレート
Model codes
LKG-FU54VY, LKG-FU54VZ, LKG-FU55VZ, LKG-FV54VZ, QKG-FU54VZ, QKG-FU55VZ
Part at fault
その他(制御装置)
Vehicles covered
370
Filed as
Recall
Register
Japan — Ministry of Land, Infrastructure, Transport and Tourism

What the ministry says is wrong

②大型トラックのエアブレーキにおいて、マルチプロテクションバルブ(ブレーキのエアラインが失陥した際に失陥したエアライン以外の経路を遮断し他のエアラインのエア圧を確保するもの)内にあるレジューシングバルブ(後2軸車に装着された4バックエアサスペンション用のエアタンクとブレーキのエアタンクの圧力を切り替えるための減圧弁)のゴム部材質が不適切なため、圧縮空気中に含まれる油分によってゴム部が劣化するものがある。そのため、エアラインの減圧不良が生じ高圧になることでASRバルブが誤作動し、ブレーキの引き摺りを起こすものがある。そのため、そのままの状態で使用を続けるとブレーキが過熱し、最悪の場合、火災に至るおそれがある。

What is to be done about it

②全車両、マルチプロテクションバルブを対策品に交換する。また、ブレーキ周りを点検し、引き摺りの発生が確認された場合には、異常が認められた部品を良品に交換する。

The two passages above are quoted in Japanese because that is the language the ministry published them in. This site keeps the wording a register had when it was read, and does not translate a safety notice.

Source: Ministry of Land, Infrastructure, Transport and Tourism website (出典:国土交通省ウェブサイト), used under the Public Data License 1.0. This site gathered the record, grouped it by notification number and set it in English around the ministry's own words; the notice itself is unaltered. CarsMultiverse is not the ministry and not a safety authority. To act on this notice, use the ministry's own document.

The Japanese register on this site

三菱 elsewhere in this register

三菱 is named on 887 notices in the copy of MLIT’s register held here, of which these are the nearest to this one in time.

The same part: その他(制御装置)

146 notices in this register name その他(制御装置). A defect that keeps returning under one heading is worth reading as a group rather than one notice at a time.

Reading this against the source

This page is what MLIT published in the recall notices it publishes, kept as it was read. The authority publishes only its current wording; if a notice is rewritten, the earlier version disappears there and is kept here. The whole register is at /japan, and how the reading is done is set out in the method.

This register keeps an index of its own for every maker and every year it holds: Japanese recalls on a Mitsubishi: 1,288 in the register, and 390 Japanese vehicle recall notifications filed in 2013.

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