Drive Shaft Bridge Support for DOOSAN 503

DOOSAN 503 Drive Shaft Bridge Support/DOOSAN 501 Drive Shaft Bridge Support/DOOSAN 505 Drive Shaft Bridge Support/All Kinds Drive Shaft Bridge Support SEM 632D 652D wheel drive shaft bridge support, function: support the front drive shaft, the middle drive shaft, keep the drive shaft smooth rotation. The transmission system of loader often fails in the working process. Now the ZL50D loader produced by Shandong Construction Machinery Factory is taken as an example for fault analysis and maintenance.

Some gears can't walk or do not walk, while others can walk normally
Inability to walk or not to walk refers to that the speed of a gear is significantly lower than the normal speed of the gear or the bucket is slightly inserted into the pile, that is, not to walk.
A gear to walk weak or not to walk, can rule out torque converter, variable speed pump, variable speed control valve valve and other block common oil road and parts of the problem, the fault can only occur in the variable speed control valve after the clutch piston between the oil road. At this point, the rotation of the main drive shaft between the torque converter and the gearbox should be observed first: when the corresponding gear is hung, the main drive shaft continues to rotate while the output shaft of the gearbox does not rotate after the bucket insertion pile loader stops moving, the following problems can be confirmed:
Loader drive shaft assembly is composed of  universal joint、Drive shaft flange fork、Drive shaft bridge support
SEM wheel loader product model：SEM636F SEM655F SEM656F SEM658F SEM665F SEM676F SEM618M SEM632D SEM652D SEM653D SEM653F SEM655D SEM656D SEM660D SEM663D SEM676D SEM680D

Doosan wheel loader product model：DL300 DL501-9C DL502-9C DL503-9C DL503N-9C DL505-9C DL507-9C DL607-9C
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