Overview
| MLIT filing number | 1121700 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | August 5, 2008 |
| Manufacturer(s) | Mitsubishi |
| Component | Differential |
| Production period | September 27, 1991 — November 2005 |
| Vehicles affected | 17,318 units |
Defect
On low-floor rear-tandem-drive vehicles, the companion flanges connecting the propeller shaft between the forward rear axle and the rearward rear axle were manufactured with insufficient thread strength and improper tightening torque on the pinion gear shaft and through-shaft. As a result, the castle nut may loosen, or the threaded sections of the pinion gear shaft and through-shaft may fracture. In the worst case, the propeller shaft between the two rear axles may detach, rendering the vehicle inoperable.
Corrective action
On all vehicles, the final reduction gear assembly on the rearward rear axle and the companion flange assembly on the forward rear axle are replaced with corrected parts. On vehicles where installation of the corrected parts reduces propeller shaft mounting clearance, the propeller shaft is also replaced with a shorter unit. Because supply of the corrected parts requires additional time, an interim measure is performed first: the companion flange mounting condition is inspected, any flange found to be defective is replaced with a new part, and the corrected part is installed at a later date.
Affected models & chassis ranges
This filing lists 85 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 |
|---|---|---|
| KC-FS410T | ふそう | FS410T-560001 — FS410T-560078 |
| KC-FS410TZ | ふそう | FS410TZ-560001 — FS410TZ-560619 |
| KC-FS410U | ふそう | FS410U-560001 — FS410U-560429 |
| KC-FS411N | ふそう | FS411N-560001 — FS411N-560004 |
| KC-FS411R | ふそう | FS411R-560001 |
| KC-FS411RZ | ふそう | FS411RZ-560001 — FS411RZ-560036 |
| KC-FS411TZ | ふそう | FS411TZ-560001 — FS411TZ-560350 |
| KC-FS411U | ふそう | FS411U-560001 — FS411U-560006 |
| KC-FS415U | ふそう | FS415U-560001 — FS415U-560093 |
| KC-FS417T | ふそう | FS417T-560001 — FS417T-560015 |
| KC-FS417U | ふそう | FS417U-560001 — FS417U-560162 |
| KC-FS419N | ふそう | FS419N-560001 — FS419N-560010 |
| KC-FS419R | ふそう | FS419R-560001 — FS419R-560008 |
| KC-FS419RZ | ふそう | FS419RZ-560001 — FS419RZ-560076 |
| KC-FS419T | ふそう | FS419T-560001 — FS419T-560009 |
| KC-FS419TZ | ふそう | FS419TZ-560001 — FS419TZ-560534 |
| KC-FS419U | ふそう | FS419U-560001 — FS419U-560107 |
| KC-FS477U | ふそう | FS477U-560001 — FS477U-560002 |
| KC-FS510VX | ふそう | FS510VX-500001 — FS510VX-510112 |
| KC-FS510VY | ふそう | FS510VY-500001 — FS510VY-510306 |
| KC-FS510VZ | ふそう | FS510VZ-500005 — FS510VZ-710029 |
| KC-FS511RY | ふそう | FS511RY-500001 — FS511RY-710002 |
| KC-FS511TZ | ふそう | FS511TZ-500002 — FS511TZ-710004 |
| KC-FS511VZ | ふそう | FS511VZ-500003 — FS511VZ-710005 |
| KC-FS512TZ | ふそう | FS512TZ-500003 — FS512TZ-510023 |
| KC-FS515VX | ふそう | FS515VX-500001 — FS515VX-510025 |
| KC-FS517VX | ふそう | FS517VX-500001 — FS517VX-510019 |
| KC-FS517VY | ふそう | FS517VY-500001 — FS517VY-510022 |
| KC-FS517VZ | ふそう | FS517VZ-500003 — FS517VZ-510033 |
| KC-FS519RY | ふそう | FS519RY-500002 — FS519RY-510019 |
| KC-FS519TZ | ふそう | FS519TZ-500001 — FS519TZ-510052 |
| KC-FS519VX | ふそう | FS519VX-500002 — FS519VX-510026 |
| KC-FS519VY | ふそう | FS519VY-500001 — FS519VY-510022 |
| KC-FS519VZ | ふそう | FS519VZ-500002 — FS519VZ-510066 |
| KC-FS540VZ | ふそう | FS540VZ-500001 — FS540VZ-700141 |
| KC-FS570VZ | ふそう | FS570VZ-500002 — FS570VZ-510001 |
| KC-FY510TY | ふそう | FY510TY-500004 — FY510TY-510057 |
| KC-FY515JX | ふそう | FY515JX-510001 — FY515JX-510004 |
| KC-FY517NX | ふそう | FY517NX-500002 — FY517NX-510023 |
| KC-FY517TX | ふそう | FY517TX-500003 — FY517TX-510065 |
| KC-FY517TY | ふそう | FY517TY-500003 — FY517TY-510059 |
| KC-FY519JX | ふそう | FY519JX-510001 — FY519JX-510003 |
| KC-FY519NY | ふそう | FY519NY-500001 — FY519NY-510058 |
| KC-FY519RY | ふそう | FY519RY-500002 — FY519RY-510042 |
| KC-FY519TY | ふそう | FY519TY-500002 — FY519TY-510012 |
| KL-FS50JVY | ふそう | FS50JVY-520035 |
| KL-FS50JVZ | ふそう | FS50JVZ-520014 — FS50JVZ-530239 |
| KL-FS50KUZ | ふそう | FS50KUZ-520003 — FS50KUZ-520011 |
| KL-FS50MRY | ふそう | FS50MRY-520001 — FS50MRY-530056 |
| KL-FS50MTZ | ふそう | FS50MTZ-520002 — FS50MTZ-530183 |
| KL-FS50MVY | ふそう | FS50MVY-520001 — FS50MVY-530016 |
| KL-FS50MVZ | ふそう | FS50MVZ-520001 — FS50MVZ-530061 |
| KL-FS54JUZ | ふそう | FS54JUZ-520085 — FS54JUZ-530177 |
| KL-FS54JVY | ふそう | FS54JVY-520082 — FS54JVY-530354 |
| KL-FS54JVZ | ふそう | FS54JVZ-520164 — FS54JVZ-532835 |
| KL-FS55JUZ | ふそう | FS55JUZ-520024 — FS55JUZ-520035 |
| KL-FS55JVZ | ふそう | FS55JVZ-520053 — FS55JVZ-720229 |
| KL-FY50JNX | ふそう | FY50JNX-520001 — FY50JNX-530026 |
| KL-FY50JRY | ふそう | FY50JRY-520001 — FY50JRY-530034 |
| KL-FY50JTX | ふそう | FY50JTX-520001 — FY50JTX-530058 |
| KL-FY50JTY | ふそう | FY50JTY-520001 — FY50JTY-530054 |
| KL-FY50KJX | ふそう | FY50KJX-520001 — FY50KJX-520016 |
| KL-FY50MNY | ふそう | FY50MNY-520001 — FY50MNY-530118 |
| KL-FY50MRY | ふそう | FY50MRY-520001 — FY50MRY-530045 |
| KL-FY50MTY | ふそう | FY50MTY-520001 — FY50MTY-530028 |
| KL-FY54JTX | ふそう | FY54JTX-530001 — FY54JTX-530055 |
| KL-FY54JTY | ふそう | FY54JTY-520001 — FY54JTY-530411 |
| PJ-FS50JVZ | ふそう | FS50JVZ-530164 — FS50JVZ-530274 |
| PJ-FS54JVZ | ふそう | FS54JVZ-531114 — FS54JVZ-533184 |
| PJ-FS55JUZ | ふそう | FS55JUZ-530069 — FS55JUZ-530141 |
| PJ-FS55JVZ | ふそう | FS55JVZ-530002 — FS55JVZ-530996 |
| PJ-FY54JTY | ふそう | FY54JTY-530213 — FY54JTY-530438 |
| U-FS410T | ふそう | FS410T-550001 — FS410T-750001 |
| U-FS410U | ふそう | FS410U-550001 — FS410U-750001 |
| U-FS411N | ふそう | FS411N-550001 — FS411N-550054 |
| U-FS411R | ふそう | FS411R-550001 — FS411R-550044 |
| U-FS411T | ふそう | FS411T-550001 — FS411T-550010 |
| U-FS411U | ふそう | FS411U-550001 — FS411U-550049 |
| U-FS415U | ふそう | FS415U-540001 — FS415U-740005 |
| U-FS416N | ふそう | FS416N-540001 — FS416N-550102 |
| U-FS416R | ふそう | FS416R-540001 — FS416R-550077 |
| U-FS416T | ふそう | FS416T-550001 — FS416T-550049 |
| U-FS416U | ふそう | FS416U-540001 — FS416U-740003 |
| U-FS418U | ふそう | FS418U-540001 — FS418U-550485 |
| U-FS478U | ふそう | FS478U-540002 — FS478U-550032 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
低床式後２軸駆動車の後前軸と後後軸間のプロペラシャフトを接続するコンパニオンフランジにおいて、ピニオンギヤシャフトおよびスルーシャフトのねじ部の強度および締付トルクが不適切なため、キャッスルナットがゆるみ、またはピニオンギヤシャフトおよびスルーシャフトのねじ部が折損し、最悪の場合、後前軸と後後軸間のプロペラシャフトが脱落して走行不能となるおそれがある。
改善措置
全車両、後後軸の終減速機一式、および後前軸のコンパニオンフランジ一式を対策品に交換する。また、対策品の装着によりプロペラシャフト取付け距離に余裕度が少なくなる一部の車両については、プロペラシャフトを短いものに交換する。 なお、対策品の供給に時間を要するため、当面の暫定措置として、コンパニオンフランジの取付状態を点検し、異常のあるものは新品と交換し、後日対策品と交換する。
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=3001942
Related
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