The reason why the bulldozer is unable to stop
Two, transmission common faults and troubleshooting1, missing gearMissing gear means one gear or a few blocks, and other gears are normal. If I stop missing, is to move forward and backward 1. I have no other gear, gear normal; if the lack of forward block, each block is not forward and back, each block is normal; if the lack of gear is forward and backward 4.5 are not, and the other is the block normal etc..The cause of lack of transmission gear mainly has the following two kinds: one is the missing gear hydraulic cylinder seal ring (PTFE ring) damage or against; two is the lack of gear oil supply passage with oil or other forms of crack damage. If there is no one gear, there are two reasons besides the difference of the oil supply path of the clutch, that is, the ball check valve is falling off and the rotating seal ring on the oil path is damaged.In addition, if the pressure valve leading to the small piston cavity of the small hole blocked, then the pressure relief valve will lose effect, into the first gear will be 2.5MPa pressure oil. This will cause premature wear of the rotary seal ring in the oil block, resulting in a lack of first gear. After the new ring is replaced, the pressure relief valve must be thoroughly cleaned to solve the problem.In order to find out the real reason is not within the transmission assembly, can be disassembled in the transmission valve, with air pressure of about 0.8MPa to 5 oil inlet air, at this time should be able to hear the transmission clutch engage, if not the sound, will hear the leak sound obvious, indicating that the clutch failure.
3, gear shift, abnormal sound, difficult to meshThe main reasons are as follows: the adjusting disc is too tight; the brake of the hand brake is not working well. When the adjusting plate is too tight, the main clutch is difficult to separate, so it can not cut off the power and cause the gear to make abnormal noises when shifting gears. At this point, the disc should be adjusted counterclockwise to the proper position, that is, when the main clutch is adjusted, as long as the clutch handle is pulled, the loud and clear sound can be clearly heard over the dead center. If the hand brake will cause adverse effect, although the main clutch separation, but the main clutch shaft because of inertia is still in rotation (in accordance with the requirements of the main clutch in the separation state, main clutch shaft should be stopped in 3S), so when the shift gear is engaged with a different sound. The small brake belt must be adjusted or replaced at this time.4, the main clutch does not engageThe main reasons are: the short pin shafts on the connecting plate of the set off; mobile hammer against; the repair process will not be the main clutch cover, check whether the moving sleeve short pin shaft and hammer mobile is set off anti loaded (if the hammer is reversed, will make the mobile set to enter the adjustment plate), when necessary detachable mobile sets, re riveting short pin, good adjustment and installation. If the main clutch lever shaft installation is not in place, the lever shaft should be adjusted according to the regulations.
