Lead cab BIW size bias influencing factors were analyzed two aspects, ideas and solutions in order to propose solutions to the problem: 1, sheet metal design quality sheet metal design including overall driving quality benchmarks / tolerance of rationalization, stampings room factory, the benchmark three consistency. Reasonable basis / tolerance can reduce the accumulated error of sheet metal welding, stamping can increase overall productivity and reduce the number of pieces of sheet metal, so as to prevent the generation of cumulative error of welding processes, sheet metal base ensures consistency Unity member welding position, reducing the size of the fluctuation of the relative position. 2, the manufacture of precision sheet metal stamping dies is the main process equipment for the production of sheet metal parts, design quality and manufacturing quality stamping die directly affect the accuracy of sheet metal parts, sheet metal parts can cause deviations subsequent welding process deviations cab, we are talking about sheetmetal deviation is the deviation of each size and position of each sheet metal assembly nominal size of sheet metal in a free state, related to sheet metal design, manufacturing variations and produce during transport deformation deviation manufacturing variations. His main reason for the deviation caused by the stamping process caused unreasonable, which is by itself sheetmetal geometry, material properties of the decision. For example, the shape of the sheet metal size, complexity of the process of drawing, mold structure and precision sheet metal forming properties. Troubleshooting Prince cab car clutch: 1) separation of master cylinder assembly: do not adjust the current cab, pedal too high, and no air travel 2) driven disc (friction plates) assembly: lining wear large ( wear to lining rivets at) 3) clutch master cylinder, slave cylinder, separating fork, release bearing and other issuers cab window, sports are not flexible. 4) Face flywheel, pressure plate Face wear large (worn over 0.5mm) 5) refers to the separation of excess wear (finger arc already polished), release bearing excessive wear (thrust plane grind concave arc) repair method: Step 1: Check the clutch pedal is too high, air travel is appropriate to adjust to the normal state. If the fault does not eliminate the next step. Step two: Check the clutch pedal, master cylinder, wheel cylinder, release fork, release bearing, etc. Are there cards involved, the phenomenon of movement is not flexible, if the clutch pedal return to normal after the exclusion is still not solved, the next step. Step 3: Check the clutch plate assembly, cover assembly, excessive wear flywheel, pressure plate separation refers to the separation plane thrust bearing wear excessive pad wear plate assembly should not be leaking rivets; measured with calipers, cover assembly. The platen working face wear should not exceed 0.3mm; flywheel mounting depth measurement depth gauge, the wear depth should be less than 0.5mm or more;. platen separation should not be polished finger circular surface; release bearings thrust plane should grind concave arc; do not meet the size and should be replaced. But in the repair process should pay attention to a particular part does not meet the requirements should be replaced individually, not general sets of replacement. (For example: clutch disc assembly excessive wear and tear, it is only for plate assembly, Do not replace the cover assembly) cab cab door _ _ Jinan Yiu Cheung Yiu Cheung provided by Jinan Trading Company. Jinan Yiu Cheung Trading Company (www.jinanyaoxiang.com) strong, credible, in Jinan, Shandong engine assembly industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead you hand Jinan Yao harmony into the brilliant, for a better future!