Overview
| MLIT filing number | 1138230 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | June 9, 2016 |
| Manufacturer(s) | Hino |
| Component | Drivetrain / Power Transmission |
| Production period | February 27, 2004 — June 2009 |
| Vehicles affected | 26 units |
Defect
In the 12-speed mechanical automatic transmission used in heavy-duty trucks, the planetary carrier has insufficient strength. Repeated gear changes cause wear on the pinion shaft, which breaks the spring pin securing the shaft and allows the shaft to contact the transmission case. Continued operation produces abnormal noise and, in the worst case, may render the vehicle inoperable.
Corrective action
On all vehicles, replace the auxiliary case assembly containing the planetary carrier with a corrected part. During replacement, inspect the interior of the transmission case; if interference marks are found on the inner wall, replace the entire transmission assembly with a corrected part. Because full parts supply will require additional time, inspect the oil first and prioritize replacement on vehicles showing the highest concentration of wear particles.
Affected models & chassis ranges
This filing lists 12 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-SH1EFXG | PROFIA | SH1EFX-10046 — SH1EFX-12002 |
| BDG-FW1EWYA改 | PROFIA | FW1EWY-10220 |
| BDG-SH1EFXG | PROFIA | SH1EFX-10046 — SH1EFX-12002 |
| BDG-SH1EFXG改 | PROFIA | SH1EFX-10046 — SH1EFX-12002 |
| BDG-SH1EGXG | PROFIA | SH1EGX-10555 — SH1EGX-10765 |
| BDG-SH1EGXG改 | PROFIA | SH1EGX-10555 — SH1EGX-10765 |
| KS-FS1ERWA | PROFIA | FS1ERW-10069 — FS1ERW-10290 |
| KS-FS1ERWA改 | PROFIA | FS1ERW-10069 — FS1ERW-10290 |
| KS-FS1EWWA | PROFIA | FS1EWW-10286 |
| KS-FW1EWWA | PROFIA | FW1EWW-10091 — FW1EWW-10109 |
| KS-FW1EWWA改 | PROFIA | FW1EWW-10091 — FW1EWW-10109 |
| KS-SH1EFJG | PROFIA | SH1EFJ-10075 — SH1EFJ-10077 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型トラックの１２段機械式自動変速機において、プラネタリキャリアの剛性が不足しているため、変速の繰り返しによりピニオンシャフトが摩耗し、当該シャフトを固定しているスプリングピンが折損してシャフトが変速機本体ケースと干渉することがある。そのため、そのまま使用を続けると異音が発生し、最悪の場合、走行できなくなるおそれがある。
改善措置
全車両プラネタリキャリアが組み込まれているオグジュアリケース一式を対策品に交換する。なお、交換時に内部を点検し、変速機本体ケースの内壁に干渉痕があるものは、変速機一式を対策品に交換する。 なお、交換用部品の全数供給に時間を要することから、オイルの点検を行い、多量の摩耗粉が認められた車両から順次、対策品と交換する。
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=3003789