Case Construction CX75SR - 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