Baotou beiben parts transmission gear jumping fault phenomenon: Automobile Gear in the driving rod automatically jump back to a neutral position. This phenomenon occurs in the middle, high speed, sudden changes in load or when the vehicle is subjected to severe vibration, and most of them are in the high gear shift.
Reasons for the failure of transmission jump:
L) due to gear, gear sleeve or synchronizer cone disc tooth wear is excessive, formed along the direction of tooth meshing, produces an axial thrust, in the work and the vibration shaking, the speed change of the inertial impact force, meshing gear axially away;
2, the transmission rod bending deformation, wear too much, fixed screw loose or shift rod deformation, so that the gear can not be normal meshing;
3) the self-locking device wear loose, spring elasticity is insufficient or broken, resulting in the lack of locking force, so that the transmission fork shaft can not be reliably positioned;
4) the wheel or gear sleeve wear too much, along the direction of tooth length into a cone;
5) shaft and bearing wear serious, axial clearance is too large, or the first, two axis and the intermediate shaft is not parallel, so that the gear can not be engaged in the upper and lower swing caused by the jump file;
(6) the spline shaft and the sliding gear spline groove wear too much;
7) the deformation of the shaft of the second spline or the transition of the key tooth wear, the loosening of the locking nut causes the transmission of the shaft or the gear;
8) Baotou beiben accessories synchronizer locking pin loosening, synchronizer apart or engaging tooth length direction has serious wear;
9) the transmission is not firmly fixed.
The judgment and elimination of the gear shifting fault:
L in the discovery of a file jump, the shift lever will be replaced by the file, and then remove the transmission cover to see the gear meshing situation, such as good meshing, should check the transmission fork shaft locking mechanism;
2, the use of the hand to push the gear shift fork test positioning device, such as poor positioning, need to remove the shift fork shaft test pieces and springs, such as the spring is too soft or broken should be replaced. If the shift fork shaft groove wear too much should be repaired or replaced;
3) check the gear meshing, such as gear is not fully engaged, with hand push jump gear gear or gear sets the correct meshing, should check the transmission fork is bent or too much wear, and a transmission fork fixed screw is loose, fork end and gear for groove clearance is too large. If the shift fork bending should be corrected, such as the fork due to the lower gear wear and sliding gear groove too loose should be removed;
4, such as the transmission mechanism is good, and the gear or gear sets can be properly engaged, you should check the gear is worn into a cone, such as severe wear should be replaced;
5) check the bearing and shaft wear, such as shaft wear serious, loose bearing or variable speed shaft along the axial movement, should be removed repair or replacement;
6) check the working condition of the synchronizer, if the fault should be repaired or replaced;
7 check the Baotou North heavy duty truck parts transmission fixed bolts, such as loose should be tightened.