Overview
| MLIT filing number | 1119910 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | November 8, 2007 |
| Manufacturer(s) | Hino, Isuzu |
| Component | Pressure Control and Transmission Unit |
| Production period | August 27, 2004 — March 22, 2006 |
| Vehicles affected | 1,303 units |
Defect
On large-capacity route buses, foreign matter contaminating the brake fluid may cause brake fluid to leak from the brake booster. Continued operation allows the leak to cause the rubber components in the Hill Start Aid (HSA) system control valve to swell. In the worst case, the brake may become impossible to release.
Corrective action
As an interim measure, inspect the brake booster and HSA valve on all vehicles. Where brake fluid leakage is found, replace the affected components with new parts and flush the air lines.
Affected models & chassis ranges
This filing lists 8 type code(s). A vehicle is affected if its chassis number falls within one of the ranges below.
| Type code (型式) | Model | Chassis ranges |
|---|---|---|
| KL-KV280L1 | 日野ブルーリボンⅡ | KV280L1-7000015 — KV280L1-7000041 |
| KL-KV280N1 | 日野ブルーリボンⅡ | KV280N1-7000003 — KV280N1-7000004 |
| KL-LV280L1 | ERGA | LV280L1-7000075 — LV280L1-7000329 |
| KL-LV280N1 | ERGA | LV280N1-7000030 — LV280N1-7000199 |
| KL-LV280Q1 | ERGA | LV280Q1-7000017 — LV280Q1-7000057 |
| PJ-LV234L1 | ERGA | LV234L1-7000002 — LV234L1-7000603 |
| PJ-LV234N1 | ERGA | LV234N1-7000001 — LV234N1-7000317 |
| PJ-LV234Q1 | ERGA | LV234Q1-7000002 — LV234Q1-7000030 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型路線バスの制動装置において、ブレーキ液に混入した異物により、倍力装置からブレーキ液が漏れることがある。そのため、そのまま使用を続けると、坂道発進補助装置（ＨＳＡ：ヒル・スタート・エイド）の制御バルブのゴム部品が膨潤して、最悪の場合、ブレーキが解除できなくなるおそれがある。
改善措置
暫定措置として、全車両、倍力装置とＨＳＡバルブを点検し、ブレーキ液が漏れているものは該当部品を新品と交換するとともに、エア配管を洗浄する。
Source & verification
This entry reproduces public data from Japan's MLIT recall registry. English text is jdmvin.com's own translation; always verify against the official source:
https://renrakuda.mlit.go.jp/renrakuda/ris-detail-car.html?class=recalldatacar&id=3001742
Related
All Hino recalls · All Isuzu recalls · All 2007 recalls · Recall Archive home