In September 2011, Hino filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Differential, covering the Profia. The filing affects 3,391 vehicles manufactured between November 2003 and December 18, 2008.
Overview
| MLIT filing number | 1128180 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | September 13, 2011 |
| Manufacturer(s) | Hino |
| Component | Differential |
| Production period | November 2003 — December 18, 2008 |
| Vehicles affected | 3,391 units |
Filing in context
The Differential is the most frequently cited component category in this archive, appearing in 33 of its 4,890 filings. This filing is one of 26 Hino notifications from 2011 in this archive. For scale, 2,136 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 5 years and 1 month.
Defect
On heavy-duty trucks equipped with a low-floor, rear dual-axle drivetrain and a 12-speed transmission, the joint between the flange coupling on the rear-rear axle and the drive pinion — which connects the propeller shaft between the rear-front axle and the rear-rear axle — has insufficient strength. This allows the castle nut seating surface to wear, causing the castle nut to loosen and the spline portion of the flange coupling or the threaded portion of the castle nut to strip. Continued use in this condition may cause the flange coupling to spin freely or disengage entirely, dropping the propeller shaft between the rear-front and rear-rear axles. In either case, the vehicle becomes inoperable.
Corrective action
Replace the rear-rear axle differential carrier on all vehicles with a corrected part. Because delivery of corrected parts in full quantity requires time, inspect the flange coupling installation condition on all vehicles and prioritize replacement on vehicles where an abnormality is found.
Affected models & chassis ranges
This filing lists 23 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 |
|---|---|---|
| ADG-FW1EXYG | PROFIA | FW1EXY-10016 — FW1EXY-15634 |
| ADG-FW1EXYJ | PROFIA | FW1EXY-10016 — FW1EXY-15634 |
| ADG-FW1EZYG | PROFIA | FW1EZY-10016 — FW1EZY-10745 |
| ADG-FW1EZYJ | PROFIA | FW1EZY-10016 — FW1EZY-10745 |
| BDG-FW1EWYA | PROFIA | FW1EWY-10220 |
| BKG-FW1EBYG | PROFIA | FW1EBY-10068 — FW1EBY-10107 |
| BKG-FW1EBYJ | PROFIA | FW1EBY-10068 — FW1EBY-10107 |
| BKG-FW1EXYG | PROFIA | FW1EXY-10016 — FW1EXY-15634 |
| BKG-FW1EXYJ | PROFIA | FW1EXY-10016 — FW1EXY-15634 |
| BKG-FW1EYYG | PROFIA | FW1EYY-10178 — FW1EYY-10266 |
| BKG-FW1EYYJ | PROFIA | FW1EYY-10178 — FW1EYY-10266 |
| BKG-FW1EZYG | PROFIA | FW1EZY-10016 — FW1EZY-10745 |
| BKG-FW1EZYJ | PROFIA | FW1EZY-10016 — FW1EZY-10745 |
| KS-FW1EWWA | PROFIA | FW1EWW-10091 — FW1EWW-10109 |
| KS-FW1EWWA改 | PROFIA | FW1EWW-10091 — FW1EWW-10109 |
| KS-FW1EXWG | PROFIA | FW1EXW-10018 — FW1EXW-15552; 1029826 |
| KS-FW1EXWJ | PROFIA | FW1EXW-10018 — FW1EXW-15552; 1001497; 428497 |
| KS-FW1EZWG | PROFIA | FW1EZW-10015 — FW1EZW-10715 |
| KS-FW1EZWJ | PROFIA | FW1EZW-10015 — FW1EZW-10715 |
| PK-FW1EXWG | PROFIA | FW1EXW-10018 — FW1EXW-15552; 1002862 |
| PK-FW1EXWJ | PROFIA | FW1EXW-10018 — FW1EXW-15552; 1020765 |
| PK-FW1EZWG | PROFIA | FW1EZW-10015 — FW1EZW-10715 |
| PK-FW1EZWJ | PROFIA | FW1EZW-10015 — FW1EZW-10715 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
低床式後２軸駆動の１２段変速機を搭載した大型トラックにおいて、後前軸と後後軸間のプロペラシャフトを接続する後後軸のフランジカップリングとドライブピニオンとの締結部の強度が不足しているため、キャッスルナットの座面が摩耗することによりキャッスルナットに緩みが生じ、フランジカップリングのスプライン部またはキャッスルナットのネジ部が摩滅するものがある。そのため、そのままの状態で使用を続けると、フランジカップリングが空転、またはフランジカップリングが抜け出して後前軸と後後軸間のプロペラシャフトが脱落し、いずれの場合も走行できなくなるおそれがある。
改善措置
全車両、後後軸のデフキャリアを対策品と交換する。 なお、対策品の全数供給に時間を要するため、フランジカップリング取付状態の点検を行い、異常が認められた車両を優先に交換する。
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=3002659
Related recalls
Same manufacturer, same component
Other Hino filings involving the Differential, closest to this one by filing date.
Differential — affects 3 vehicles.
Open recall detail →Differential — affects 17,704 vehicles.
Open recall detail →Differential — affects 67 vehicles.
Open recall detail →Other recalls affecting the same models
Filings whose affected type codes overlap with this one, newest first.
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Open recall detail →Vehicle Body — affects 2,544 vehicles.
Open recall detail →Other — affects 744 vehicles.
Open recall detail →Other (Frame/Body) — affects 2,061 vehicles.
Open recall detail →Body Structure (Roof Rail Rivet Cover) — affects 1,697 vehicles.
Open recall detail →