Case CX490D, Operator'S Manual, Page: 330 / 370

9 - ACCESSORIES
CASE CONSTRUCTION hydraulic breakers
CASE CONSTRUCTION CH hydraulic breakers are designed to optimize the operating performance of the CASE
CONSTRUCTION excavators in infrastructural works, in primary and secondary site demolition, and in quarry break-
ing.
CASE CONSTRUCTION defines application rules in order to match each breaker model with the most suitable con-
figuration of the machine, and to refer breaker application to specific working conditions.
Direct fit application as function of the arm (CX490D LC)
CH BREAKER
Reference machine settings Arm
Model
Install
Weight
Flow Relief Pressure
2.53 m
( 99.61 in )
3.38 m
( 133.07 in )
4.00 m
( 157.48 in )
4.85 m
( 190.94 in )
CH-310
3600 kg
( 7937 lb )
282 L/min
( 74 US
gpm
)
21 – 23 MPa ( 3046 –
3336 psi )
○ x x x
Direct fit application as function of the arm (CX490D RTC)
CH BREAKER
Reference machine settings
Arm
Model
Install
Weight
Flow Relief Pressure
2.53 m
( 99.61 in )
3.38 m
( 133.07 in )
4.00 m
( 157.48 in )
4.85 m
( 190.94 in )
CH-310
3600 kg
( 7937 lb )
282 L/min
( 74 US
gpm
)
21 – 23 MPa ( 3046 –
3336 psi )
○ ● x x
Direct fit application (CX500D)
CH BREAKER
Reference machine settings Arm
Model Install Weight
Flow Relief Pressure 2.53 m ( 99.61 in )
CH-310
3750 kg ( 8267 lb )
282 L/min ( 74 US
gpm )
21 – 23 MPa ( 3046 – 3336 psi ) ○
○ Suitable application
● Conditional application (only over the front working position)
x Not applicable
NOTICE: For site demolition or for operation in quarry, the machine must be equipped with 2.53 m ( 99.61 in ) arm,
750 mm ( 30 in ) tracks, and integral track guards.
NOTICE: CASE CONSTRUCTION will not take into account any condition of application that is out of the ones defined
in the table above.
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