检查和修复螺栓EV自体轮胎

2017-2018 Bolt EV models feature Michelin Selfseal^®tires that will immediately seal the tread when punctured up to 1/4-inch (6 mm) in diameter. The Selfseal tires also may be repaired using a one-piece patch/stem unit if the puncture is within the tread.

Designed specifically for the Bolt EV, the Michelin Selfseal tires (Fig. 5) use a unique compound and construction that offers additional stiffness — for less rolling resistance — without reducing comfort or performance levels. The special tread pattern and groove widths also minimize road noise. With the self-sealing tires, the Bolt EV is not equipped with a spare tire or changing equipment, which saves weight and improves EV battery range.

Fig. 5

In some cases, if a Selfseal tire has a puncture that is larger than 1/4-inch (6 mm) in the tread area, the tire may not self-seal and a one-piece patch/stem unit may be needed to repair the tire. Follow the repair material manufacturer’s instructions.

If the tire puncture is larger than the one-piece patch/stem unit, or if the tire has been separated from the wheel or has damaged sidewalls, the tire is too severely damaged and will need to be replaced.

Tire Inspection

A Selfseal tire should be inspected any time that a vehicle is brought in to the dealership with a tire with a penetrating object, if a tire has been driven while under-inflated or the Tire Pressure Monitor System (TPMS) has warned of pressure loss, or if there is evidence of a prior penetration or other possible damage.

TIP:Any inspection of Michelin Selfseal tires must be carried out by a trained tire service technician and follow Rubber Manufacturers Association (RMA) Industry Tire Repair procedures.

A proper inspection of the condition of the Selfseal tire before it is repaired is critical. If the tire was driven while under-inflated, it may have suffered irreversible damage. Dismounting the tire and performing a thorough check of the interior of the tire will help to determine if the tire can be repaired.

单件式贴片/茎修复

A one-piece patch/stem unit of the appropriate size (based on the repair material manufacturer’s recommendations) should be used to repair a Selfseal tire. To make the repair, first bore a hole (a carbide cutter is recommended) from the inside of the tire following the trajectory of the puncture. (Fig. 6)

Fig. 6

Next, spread the adhesive directly over the hole without brushing. (Fig. 7) Do not mix products from different repair material manufacturers.

Fig. 7

一旦粘合剂干燥五分钟，就拆下从单件杆（不接触未覆盖的表面）并将杆从轮胎内部插入穿刺中的保护覆盖物。（图8）从轮胎外部平滑地拉动杆。

Fig. 8

从阀杆中心到边缘的杆的底座上滚到边缘。将杆的突出部分切割在轮胎外侧而不拉动杆的主体。（图9）

Fig. 9

For additional information, refer to Bulletin #17-NA-299.

- 感谢Charlie Mott和Dan Hrodey