An electric pallet truck
is a loading, unloading and handling vehicle powered by a DC power supply (battery). In terms of new materials and new processes, the most important manifestation is the application of transistor controllers (SCR and MOS tubes). Its appearance makes the performance of electric forklifts It has been greatly improved. On the whole, the durability, reliability and applicability of electric forklifts have been significantly improved, and they can completely compete with internal combustion engine forklifts. 1. The selection and daily inspection items for electric forklifts are as follows: a. Fork selection: The thickness and length of the two matched forks should be the same. The angle between the vertical section and the horizontal section of the two forks should also be the same. After the forks are installed on the fork frame, the upper planes of the two forks should be kept in the same plane, and there should be no height dislocation. b. Daily inspection of the fork: there must be no cracks on the surface of the fork, and there must be no desoldering phenomenon in the welding seam. The fork root angle must not be greater than 93°, and the thickness must not be less than 90% of the original size; the height of the left and right fork tips must not exceed 3% of the length of the horizontal section of the fork; the positioning of the fork should be reliable, and the support surface of the fork hook should be reliable. The positioning surface shall not have obvious defects; the clearance between the fork and the attachment frame shall not be too large, and the movement shall be smooth. 2. Regarding the multi-way valve, during forklift maintenance (secondary maintenance or third-level maintenance), as long as the multi-way valve works normally, the multi-way valve does not need to be disassembled during forklift maintenance. If oil leaks at the seal of the multi-way valve stem of the forklift, you only need to remove the lower cover or remove the valve stem and replace the sealing ring; if the safety valve leaks, you can use a steel ball to grind the valve seat. The valve stem is worn and can be ground and restored after chrome plating. When disassembling and washing the multi-way valve of a forklift, a high degree of cleanliness must be maintained. After installation, adjust the safety valve and confirm that the seal is intact before use. 3. Assembly requirements for universal joints and maintenance of forklift universal joints a. When assembling Hefei forklift universal joints, the clearance between the journal and the bearing is 0.02-0.09mm, and the maximum clearance shall not be greater than 0.13mm. b. The thread of the bearing cover should be tightened, and there should be no looseness in the fit of the stop groove and the pin ring. c. When the surface of the cross shaft journal has nicks, dents, and the journal wear is greater than 0.04mm, it can be repaired by chrome plating or iron plating. It is also possible to grind the four journals to the same size, and then use an enlarged needle roller. After the journal is reduced, the carbon layer should be carburized and heat treated. The roundness and cylindricity error of the journal after grinding should be no more than 0.01mm; the perpendicularity error of the two axes should be no more than 0.1mm. d. The needle rollers of universal joint bearings should be replaced with wear, cracks, grooves, etc. e. When the sliding fork of the universal joint is broken, it should be replaced. f. When the hole of the needle roller bearing seat is worn, it can be repaired by surfacing method, and then boring to the matching size. Anhui Equipment Manufacturing Co., Ltd. is located in Hefei, Anhui. It specializes in supplying various high-quality electric pallet truck accessories, competitive prices and best service. We always adhere to the business philosophy of 'customer first, customer first, mutual benefit and win-win'. Anhui sincerely looks forward to cooperating with you in the near future.
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