Miss A4VTG071: Rexroth hydraulic pump

I sell A4VTG071 Rexroth hydraulic pump with high quality and low price, stable product performance, without any adverse appearance, reliable quality. Here is the real map display:

The secondary A4VTG071 Rexroth hydraulic pump distributor:

Fault reason: internal assembly error of oil pump causes internal leakage;

Elimination method: the unloading plate and sealing ring must be installed in the oil cavity, and the two axle sleeve can keep balance. The guide wire elasticity should be able to turn the upper and lower bushings towards the driven gear at a small angle, so that the main and driven gear two shaft sleeve processing plane close together;

Unloading groove sleeve must be installed low-pressure chamber side, to eliminate the gear meshing harmful dead volume; pressure into the self tight seal, the surface should be coated with a layer of oil, but also pay attention to the oil blocking edge toward the front cover, not anti loaded; pump cover, pump shell to pour a small amount of the hydraulic oil, and hand rotating gear

Fault reason: "left" installed "right" oil pump, causing the broken skeleton oil seal;

Exclusion method: "right hand" pump can not install "left" machine, otherwise it will break the skeleton oil seal;