Recently, Tianjin FAW Toyota Motor Co., Ltd. filed a recall plan with the AQSIQ according to the “Regulations on the Management of Defective Automobile Product Recall” and decided to recall from December 20, 2016 to December 12, 2009. The 2009-2010 Crown 4.3L Royal Saloon VIP sedan produced during the 20th of the month has a total of 127 vehicles.

Recall range:

From May 20, 2016, the 2009-2010 Crown 4.3L Royal Saloon VIP sedan will be recalled from December 1, 2009 to December 20, 2010, for a total of 127 vehicles.

Reason for recall:

In this recall range, the speaker is not set with a protection circuit due to the speaker driving component mounted near the cooling opening in the audio power amplifier. If foreign matter is mixed in, the component may be short-circuited, causing the audio power amplifier substrate to burn. In severe cases, it may cause a fire and there is a safety hazard.

Solution:

Tianjin FAW Toyota Motor Co., Ltd. will replace the improved audio power amplifier for all target vehicles for free to eliminate safety hazards.

Tianjin FAW Toyota Motor Co., Ltd. entrusted FAW Toyota Motor Sales Co., Ltd. to inform the relevant owners through letter delivery. At the same time, the dealers notified the relevant owners by telephone, SMS, etc. to arrange the recall. Users can call the customer service hotline 800-810-1210, 400-810-1210 for consultation. Owners can also visit the AQSIQ website, the AQSIQ Defective Product Management Center website and the WeChat Public Account (AQSIQDPAC) for more information. In addition, you can also call the AQSIQ Defective Product Management Center hotline to reflect problems during the implementation of the recall or submit defects.

Tilting disc check valves produce slightly more pressure drop than swing check valves of the same size. These check valves have a single-piece disc without a hinge. In response to flow forces, the disc pivots about hinge pins that are located within the geometry of the disc and slightly above the center-line of the valve body. Due to the disc rotating onto the seat, the sealing surfaces must be conical. Some tilting disc check valves include a counterweight on the disc, dramatically increasing the disc stability with lower flow rates.


Tilting disc check valves were designed specifically to minimize the potential for high-energy water hammer. This objective is accomplished by locating the disc center of rotation a short distance from its pivot point, thus allowing the disc to quickly close with flow stoppage or flow reversal.  Although it is best to size this valve to be fully open, the disc is reasonably stable under some less than full-open flow conditions.


When it comes to maintenance, tilting disc check valves are more challenging than swing check valves. To keep seat leakage to a minimum, the conical seating surfaces of the disc and in-body seat must mate well, and the disc pivot location must be precise.

Tilting Disc Check Valve

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