Electric car purchase skills comfort cushioning the impact of key components, it is divided into front and rear shock absorber damping. There are many ways before the test shock absorption, here is a common method of electric tricycle ride electric passenger car prices, rapid acceleration to maximum, and then suddenly the front brake pull cargo electric tricycle price, because the vehicle in front of their own inertia damping immediately compression, then the body with hands clasped brake damping force under pressure, whether in the end zone perception damping shed electric tricycle price, if the damping in the end, indicating that the damping effect is poor quality, but off the front shock absorber. Test methods can ride after the shock of some speed humps or Goukan, perceived by the back seat comfort, but also take place after a hard cushion quickly under pressure, perceived comfort cushioning. Good shock absorption in addition to having a downward compression damping function, the rebound damping should also have a damping function electric tricycle price, rather than hard and fast bounce. Damping directly affects the performance of the vehicle comfort, if you feel is not obvious, you can ride a few more different brands of cars, look for feel. Electric car fault diagnosis are the following nine direction: 5) How to detect brake handle 20 volts with a multimeter to measure the voltage profile controller nine-pin plug, black pen means thin black line refers to the fine red pen purple line voltage? show about 6 volts, zero is always off the brake, brake handle grip at this time multimeter should show zero voltage constant uninterrupted power to the brake. 6) How to Detect A brushless controller power tube damage detection:? Power Tube bad performance of the vehicle does not turn or phase, specific measurement methods: measuring diode controller files A, B, C three-phase motor wiring multimeter black pen then power red, red pen, respectively, then the three-phase motor phases, multimeter significant value should be around 500-600, if a test result is zero or very small relative to the display, the phase of the power transistor breakdown If the show is a great circuit; multimeter red pen then the power ground, black pen, respectively, then the three-phase motor phases, multimeter display value should be around 500-600, if the display is zero or very small, the phase power MOSFET breakdown, if a great show for the power tube B in case of a power interruption conduction with a multimeter voltage profile measurement controller nine core plugs Thin Red Line and thin black lines, to see whether the voltage of about 5 volts, if not voltage controller bad. Pull cargo tricycle price _ White Dragon Machinery (certified) _ electric tricycle prices offered by the White Dragon Machinery Co., Ltd. Shandong. White Dragon Shandong Machinery Co., Ltd. (www.bailonggrp.com) Shandong Linyi, bicycles, tricycles and accessories leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the White Dragon machinery leadership with the staff warmly welcome all inquiries negotiations to create a better future for White Dragon machinery.