Case Construction CX75SR User Manual
Page 3
FILTRATION
Hydraulic system components
protected by “ULTRA CLEAN”
filter which filters out particles
larger than 1µ and also traces of
condensation water.
High performance filtration for
longer hydraulic fluid life-time
(fluid change interval now 5000
hours).
CX75 SR - 00
3
CONTROL VALVES
4 control valve sections for the
RH travel, boom, bucket and
dipper acceleration.
5 control valve sections for LH
travel, dipper, swing, auxiliary
circuit and boom acceleration.
2 control valve sections for
dozer blade and boom offset.
Load-holding valves on boom
and dipper.
Hydraulic system
2 variable displacement axial piston hydraulic pumps feeding the
attachment, the travel and the swing.
Maximum flow................................................................ 2 x 71.4 l/min
1 gear pump feeding the dozer blade and the boom offset
Maximum flow................................................................ 1 x 25.4 l/min
Safety valve pressure:
Attachment............................................................................. 294 bar
Swing...................................................................................... 226 bar
Travel ...................................................................................... 294 bar
Dozer blade, boom offset ...................................................... 226 bar
Electrical
circuit
Voltage................................. 12 v
Alternator......................... 50 A/h
Starter motor........ 12 v - 2.2 kW
System and
component
capacities
Hydraulic reservoir.............. 50 l
Hydraulic system................. 95 l
Travel reduction gear (per side). 1.3 l
Engine (with filter change).. 9.6 l
Fuel tank ............................ 100 l
Cooling system.................... 9.6 l
SWING
Fixed displacement, axial piston
swing motor.
Upperstructureswingspeed10rpm
Planetary reduction gear with
automatic braking by oil bath
disc brakes.
TRAVEL
Variable displacement, axial pis-
ton hydraulic motors.
Planetary reduction gear with
automatic braking by oil bath
disc brakes.
Two travel speeds (selected on
the instrument panel)
High speed..................... 4.9 kph
Low speed...................... 3.4 kph