Original instructions GMF-E
Page 12 of 32
B0834
4
6
5
8
2
9
7
1
3
Pressure
control valve
5. Description of function
5.1 Components
1
Container
2
Pump case
3
Agitator
4
Agitator blade
5
Pump shaft
6
Pressure ring
7
Worm wheel
8
Worm
9
Pump element
5.2 Function
The drive puts the pump shaft into rotation through a worm gearing. Together with this pump
shaft, a pressure ring rotates eccentrically, which the pump elements are hung in. Due to the
eccentricity of the pressure ring related to the pump shaft, each displacing piston passes,
mechanically operated, through equally long pressure and suction strokes with every
revolution of the pump shaft. The function of the pump elements will be explained later. An
agitator is linked with the pump shaft forcing the lubricant to the suction borehole of the pump
elements to comminute air bubbles.
