In November 2006, Mitsubishi filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Drive Shaft, covering the MF44WD-II, MF40WFV and 3 more models. The filing affects 188 vehicles manufactured between August 28, 1988 and January 30, 2006.
Overview
| MLIT filing number | 1117780 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | November 17, 2006 |
| Manufacturer(s) | Mitsubishi |
| Component | Drive Shaft |
| Production period | August 28, 1988 — January 30, 2006 |
| Vehicles affected | 188 units |
Filing in context
The Drive Shaft is the most frequently cited component category in this archive, appearing in 7 of its 4,890 filings. This filing is one of 70 Mitsubishi notifications from 2006 in this archive. For scale, 3,607 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 17 years and 5 months.
Defect
The fastening nuts on the drive shaft flange of the power transmission system were not tightened to the specified torque. Loads generated during forward and reverse operation cause the nuts to loosen, producing play between the flange and bolts. Continued use may cause the bolts to fracture, preventing power transmission and rendering the vehicle inoperable. In the worst case, braking capability is also lost.
Corrective action
Retighten the fastening nuts on all vehicles to the specified torque. Where the measured tightening torque is 3 kgf·m or less, replace the fastening bolts and nuts, then tighten the new nuts to the specified torque.
Affected models & chassis ranges
This filing lists 4 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 |
|---|---|---|
| A7P | ＭＦ４４ＷＤ－Ⅱ | A7P004914 — A7P004926 |
| SB-A7P | ＭＦ４４ＷＤ－Ⅱ | A7P104927 |
| ４０Ｗ | ＭＦ４０ＷＨ | 40W104601 — 40W104686; 40W104701 — 40W104833; 40W104834 — 40W104913 |
| Ａ４Ａ | ＭＦ４０ＷＦＶ | A4A04520 — A4A04577 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
動力伝達装置のドライブシャフトフランジ部の締結ナット締付けトルクが不足しているため、前後進時の負荷により当該ナットが弛み、フランジとボルトの間にガタが発生するものがある。そのため、そのまま使用を続けると、最悪の場合、ボルトが折損し、動力を伝達出来なくなり走行不能に至り、且つ制動不能となるおそれがある。
改善措置
全車両、締結ナットを正規トルクで増し締めする。なお、締付けトルクが３ｋｇｆ・ｍ以下の場合は、締結ボルト及びナット交換し、ナットを正規トルクで締付ける。
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=3001504
Related recalls
Same manufacturer, same component
Other Mitsubishi filings involving the Drive Shaft, closest to this one by filing date.
All Mitsubishi recalls · All 2006 recalls · Recall Archive home