Overview
| MLIT filing number | 1142823 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | June 14, 2018 |
| Manufacturer(s) | Hino |
| Component | Fan Belt |
| Production period | November 13, 2015 — July 17, 2017 |
| Vehicles affected | 104 units |
Defect
On large hybrid transit buses, the pulley span for the fan belt is set incorrectly, causing the belt to oscillate and develop excessive slack prematurely. Continued operation allows the belt to twist and repeatedly flex at its center, eventually causing it to split and disengage. This results in engine overheating.
Corrective action
On all vehicles, an idler pulley is added between the fan belt pulleys. The fan belt is also replaced with a new part.
Affected models & chassis ranges
This filing lists 2 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 |
|---|---|---|
| QSG-HL2ANAP | BLUE RIBBON Hybrid | HL2ANA-40011 — HL2ANA-40073 |
| QSG-HL2ASAP | BLUE RIBBON Hybrid | HL2ASA-40011 — HL2ASA-40051 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型ハイブリッド路線バスにおいて、 ③ファンベルトのプーリ間距離が不適切なため、ファンベルトが振れて早期にたわみ量が大きくなることがある。そのため、そのままの状態で使用を続けると、ファンベルトが捩れて中央部で屈曲を繰り返すことで分断し外れ、オーバーヒートとなるおそれがある。
改善措置
③全車両、ファンベルトのプーリ間にアイドルプーリを追加する。また、ファンベルトを新品に交換する。
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=3004285