Checking braking pressure of the rear power take-off..................................................................................................C2

Diagram

PTO proportional to engine speed

H

28 31

21 18

ECO

66 38 H

56

c2-002d

Description

1 Primary drive shaft. 2 Power take-off clutch. 3 PTO intermediate shaft. 4 Speed selector 540 or 1000 rev/min. 5 Speed selector economical. 6 Power take-off gear train. 7 PTO output shaft.

Operating laws

When activating the PTO proportional to engine speed, the low pressure driving circuit sends oil into the clutch housing. The clutch spring, then the spring washer, are compressed by the piston and the friction disc are pushed closer gradually to transmit torque. When the command is cancelled, pressure drops at 0 bar. Torque is no longer transmitted.

540 1 000

Fig.7