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Common Faults and Causes of Forklift Transmissions

Time:2016-12-09 Click:463

Common Faults and Causes of Forklift Transmissions

1. Forklift transmission inside the attack does not work properly. Mainly because of bearing wear loose and abnormal gear meshing between the noise caused. When the forklift bearing wear or bearing outer ring and the transmission shell cooperation Songkuang, bearing damage when abnormal sound for the beating impact. After the gear wear, the backlash of the meshing tooth increases, or the transmission part deforms to form the gear meshing nonuniformity, and the uniform noise occurs and increases with the acceleration of the vehicle speed. If there are regular intermittent percussive sound, then the teeth broken, should be immediately forklift maintenance.

    2. Transmission gear shift. Transmission jump gear refers to the forklift in the road, the driver a little loose accelerator pedal, shift lever to jump back to neutral, sliding gear disengaged from the orientation. Mainly because the gear wheel tooth wear cone; location equipment tension spring compression force weakened; shift fork zigzag deformation or fork fork face serious wear and tear; axial axial clearance is too large, and bearing wear and become loose, so that the gear Lack of meshing position and so will lead to jump gear.

    3. Transmission gear. Transmission gears are gears that are not required for the transmission. Mainly due to the shift lever locating pin loose, damaged or variable speed guide block on the bottom of the slot or shift lever serious wear and tear, can not correctly shift the fork, resulting in random files.

    4. Shaking stick. Shaker shaker is a gear shift into a gear, the gear lever constantly beating, so that "jump gear" the possibility of increase. Mainly because the speed fork and the gear ring groove is not straight, the formation of cooperation between the two no gap. So that when the gear rolling, the shift fork and the gear ring groove wipe the formation of shift lever jitter. Sliding gear and the shaft keyway wear, radial and axial clearance larger, resulting in the shift lever vibration. Positioning ball and shell hole gap is too large, when the transmission operation, the positioning of the ball will change with the fork shaft in the shell hole before and after the move, resulting in shift lever before and after the quiver.

    5. Transmission shift difficult. Shift lever can not be linked into the stalls, perhaps forced to pull into the file and then very difficult to file. Mainly because the speed fork shaft twists and turns, the end of a serious fluff, as well as the activities of the mechanical wear and deformation, resulting in abnormal contact between each other, so that the gear moving resistance increases and difficult to engage.

    6 forklift transmission oil, oil seal wear, hardening and loss of elasticity, transmission casing cracks and tightening bolts loose, will result in transmission oil leakage.


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