In October 2023, Hino filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Spring / air suspension, covering the Profia. The filing affects 23 vehicles manufactured between March 14, 2018 and February 2022.
Overview
| MLIT filing number | 1153990 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | October 25, 2023 |
| Manufacturer(s) | Hino |
| Component | Spring / air suspension |
| Production period | March 14, 2018 — February 2022 |
| Vehicles affected | 23 units |
Filing in context
The Spring / air suspension is the most frequently cited component category in this archive, appearing in 2 of its 4,890 filings. This filing is one of 25 Hino notifications from 2023 in this archive. For scale, 4,381 of the 4,890 filings in this archive report a larger number of affected vehicles; the vehicles involved here were manufactured over a span of about 3 years and 11 months.
Defect
On large vehicles modified with a lowered trunnion suspension, the machining instructions for the trunnion spacer are improperly specified, causing unstable seating between the trunnion seat and trunnion spacer during assembly. Driving vibration and related forces cause the trunnion spacer to wear, reducing the clamping load of the U-bolts that secure the leaf springs. As a result, the suspension may cease to function properly.
Corrective action
On all vehicles, replace the trunnion spacer with the corrected/revised part and replace any other components suspected of damage.
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 |
|---|---|---|
| 2DG-FR1AHA | PROFIA | FR1AH-101043 — FR1AH-103837 |
| 2DG-FS1EHA | PROFIA | FS1EH-100598 — FS1EH-101324 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
トラニオンサスペンションの低床化改造をした大型車において、トラニオンスペーサの加工指示が不適切なため、組付け時にトラニオンシートとトラニオンスペーサの着座が不安定になっている。そのため、走行振動等によりトラニオンスペーサが摩耗することにより、リーフスプリングを固定するＵボルトの軸力が低下し、緩衝装置が機能しなくなるおそれがある。
改善措置
全車両、トラニオンスペーサの対策品と損傷が懸念される部品を交換する。
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=3009512
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