Processing method of T140 bulldozer main clutch five faults (a)       

T140 bulldozer main clutch for multi plate wet powder metallurgy friction clutch, with hydraulic power, main clutch structure and its the same Japanese D80-12 bulldozer. The clutch encountered five kinds of failures, the following view is how to solve?

(1) excessive wear of pin on the clutch and pin hole of the connecting plate

When the clutch, the clutch pressure plate clamping wheel walking is not in place, the clutch can not be pressed, slipping phenomenon will work; at the same time, because of the wear, separation of clutch, lever free travel is too large, can not be used when serious. After adjustment, there is a short term effect, but this fault will lead to a large amount of wear and tear of the clutch plate, and wear speed is fast.

Handling method: disassembling clutch. To re process the connecting plate and connecting plate pin, or to replace the new parts, in order to eliminate the clutch free travel too large; at the same time, check the wear of the clutch plate and whether there is ablation, warpage and other conditions. Confirm that everything is normal, the clutch assembly, adjustment can be.

(2) the contact pin of the clutch connecting the driving plate and the pressure plate is worn

The positioning pin work, emerge from the pin hole displacement, will cause the clutch is not on, if not timely treatment, easy to cause the clutch engagement is not on, if not timely treatment, easy to cause the clutch ablation and warpage.

Treatment method:

Remove the clutch, inspect the parts wear and deformation, and replace them as appropriate. If the locating pin is re machined, it should be enlarged and lengthened according to the size of the pin hole. This method has been used many times and works well.