Recently, Ford Motor (China) Co., Ltd. re-recorded the recall plan to the AQSIQ, and will recall part of the import 2013 produced from February 15, 2013 to November 11, 2014, starting from November 20, 2017. - 2015 Ford Fiesta ST series car. According to the company's statistics, there are 435 vehicles in mainland China.
In the case of long-term use of some vehicles within the scope of this recall, the engine cooling system may leak. When the engine is cold-started and the vehicle is cold, the cylinder head will heat up quickly, causing local overheating of the cylinder head. This can lead to cracking of the cylinder head and oil leakage, which may cause fire in the engine compartment and pose a safety hazard.
Ford Motor (China) Co., Ltd. will replace the coolant sub-kettle, the lid and the turbocharger return pipe for the vehicles in the recall range, and install the coolant level sensor and refresh power control module and instrument. Software to eliminate defects.
The relevant user should maintain the appropriate engine coolant level to reduce the risk of local overheating of the engine head according to the owner's manual maintenance section. If the vehicle has a partial overheating of the engine cylinder head or a lack of coolant, please contact the dealer for vehicle related inspection. The user should contact the dealer for repair as soon as possible after the recall operation begins.
This recall is a change in the recall of the "Ford Motor (China) Co., Ltd. recalled some imported Carnival ST cars" released on May 5, 2017. The reason for the change is that the delivery time of parts for recall repair is delayed compared to the original recall schedule.
The original recall plan was voided and the information released this time will prevail. All losses arising from this change will be borne by Ford Motor (China) Co., Ltd.
Ford Motor (China) Co., Ltd. will re-send the customer by registered mail. Users can obtain information about this recall by calling Ford Motor (China) Co., Ltd. Hotline 800-810-0740. Users can also visit the AQSIQ website inspection and supervision department (jyjgs.aqsiq.gov.cn), the AQSIQ Defective Product Management Center website () and the WeChat public account (AQSIQDPAC) to learn more. information. In addition, you can also call the Defective Product Management Center hotline or the local entry-exit inspection and quarantine agency's quality hotline: 12365 (switch No. 2), reflecting the problems in the implementation of the recall or submitting defects.
Percussion drilling is employed when auger or wash boring is not possible in very stiff soil or rock. It also can be used in most soil types.
Here the advancement of a hole is achieved by alternatively lifting and dropping a heavy cutting or hammering bit that is attached to a rope or cable that is lowered into an open hole or inside a temporary casing (casings are hollow cylindrical pipes used for borehole stability and to prevent the loss of drilling fluid through the boreholes).
Usually a tripod is used to support the cable. The stroke of bit varies according to the ground condition. The major disadvantage of this method is that it is not possible to get good-quality undisturbed samples. In very hard rock (and especially fractured hard rock), down-the-hole (DTH) drilling can be employed. In this case the hammer, applying repeated percussive pressure, is located just behind the drill bit inside the hole, unlike the open percussion drilling, where the hammer is on top of the drilling string.
The drilling string provides the necessary force and rotation to the hammer and bit, as well as compressed air or fluids to the hammer and for the flushing of cuttings.
This arrangement also allows for much deeper percussion drilling. However, the DTH drills are typically more expensive.
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