22. Diagnostics of hydraulic system defects
Test spots - Option
For eective tests of hydraulic loops the test spots are accessible
from the dashboard, where quick-couplers have been installed
for easy and drop-free connection of metering devices through
threaded holes M 12x1,5.
Maximal pressure
MPa (PSI)
1
Pressure in the circuit of backward
travel
42* (6090)
2
Pressure in the circuit of forward
travel
42* (6090)
5 Pressure in the circuit of steering 19** (2755)
6 Feeding pressure 2,2*** (320)
* The value will increase by supplementary pressure, i.e., by
up to 3 MPa (435 PSI)
** Total pressure in the return line of steering (supplementary
pressure + ow losses)
*** The value at idle speed [it is higher at maximum speeds;
max. 3.0 MPa (435 PSI).
Vibration hydraulic pump Rexroth
Maximal pressure
MPa (PSI)
3
Pressure in the circuit
of vibration I
34 (4930)
4
Pressure in the circuit
of vibration II
34 (4930)
Vibration hydraulic pump Sauer
Maximal pressure
MPa (PSI)
3
Pressure in the circuit
of vibration I
35 (5075)
4
Pressure in the circuit
of vibration II
35 (5075)