Hydraulic Excavator
Hydraulic Excavator
Operating weight: 8 tons
Isuzu engine: 39.1 kW (52.4 hp)
Backhoe buckets: 110 to 360 L
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Engine
Latest generation engine meeting European standards (Tier 2
regulations) “low smoke emissions”.
CASE; since the first machines
in the “CX” series were introduced, has been the first manufacturer in Europe to market
hydraulic
excavators
with
engines of this type.
Particularly suitable for urban
work, these engines have a very
reduced noise level, one of
the lowest fuel consumptions on
the market and also meet
present and future environmental standards.
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Make ........................................................................................... ISUZU
Type ......................................................................................... CC-4JG1
Turbo................................................................................................. No
Electrically controlled fuel injection
Number of cylinders ........................................................................... 4
Bore x stroke ................................................................ 95.4 x 107 mm
Capacity .................................................................................. 3059 cm3
Power at 2100 rpm EEC 80/1269 ........................... 39.1 kW - 52.4 hp
CX75 SR - 00
2
Checking the engine rotation
speed using an electric potentiometer.
Manual return to idle, control
on RH control lever.
Engine pre-heating.
High performance filtration
circuit enables oil change intervals to be extended to every 500 h.
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 .............................................................................
Swing ......................................................................................
Travel ......................................................................................
Dozer blade, boom offset ......................................................
294
226
294
226
bar
bar
bar
bar
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.
FILTRATION
Hydraulic system components
protected by “ULTRA CLEAN”
filter which filters out particles
larger than 1µ and also traces of
condensation water.
SWING
TRAVEL
Fixed displacement, axial piston
swing motor.
Upperstructure swing speed 10 rpm
Planetary reduction gear with
automatic braking by oil bath
disc brakes.
Variable displacement, axial piston 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
System and
component
capacities
High performance filtration for
longer hydraulic fluid life-time
(fluid change interval now 5000
hours).
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
Electrical
circuit
Voltage ................................. 12 v
Alternator......................... 50 A/h
Starter motor........ 12 v - 2.2 kW
CX75 SR - 00
3
Upperstructure
The “short radius” CX75SR has special specifications compared to “standard” models:
• Shorter upperstructure radius for the rear part.
• The boom foot is positioned close to the upperstructure swing axis so as to have the minimum attachment
front swing radius.
• Cab is within the upperstructure swing radius .
• The width of upperstructure is close to the width of the undercarriage (using standard track pads).
• Counterweight and general stability of the machine provides lifting capacities identical to “standard”
machines.
Standard models
Ø 3.60 m
Radius mini = 1.80 m
Standard models
Swing radius = 1.20 m
CX75 SR - 00
4
Undercarriage
LC type undercarriage providing
excellent stability (as a result of
its length) and loading capacity
comparable to machines of
standard dimensions.
Steel or rubber tracks are
available.
Upper and lower tracks equipped with bushings and seals.
Travel motors protected and
incorporated in the undercarriage.
Track tension adjustable by
grease cylinder.
(per track set)
Number of upper rollers.......... 1
Number of lower rollers .......... 5
Number of track pads............ 39
Type of track pads Triple grousers
Optional Rubber track pads
Standard track pad size 450 mm
Gradeability ............... 70% (35°)
Front chain guide
SPECIFICATIONS
DOZER BLADE
Dozer blade control lever at
console height to the right hand
side of the cab. Dozer blade
movement by a central hydraulic cylinder.
Dozer blade width ............. 2.32 m
Dozer blade height .......... 0.450 m
Maximum raising height 0.415 m
Maximum underground
lowering depth................. 0.205 m
CX75 SR - 00
5
Cab
With CASE machines, “Smaller
machine dimensions” doesn’t
mean that there is less space for
the operator, the CX75SR cab
has the same level of comfort
and convenience as the standard
models in the CX range; it is
integrated with the upperstructure and therefore does not
affect manoeuvrability on 360°
swing. It’s still wide enough to
provide the operator with maximum comfort and all the advantages of a “standard” machine.
Mechanical suspension, multiadjustable driver’s seat (with a
storage compartment to the rear
LH of the seat).
The cab has a large roof window
glass for continuous checking of
the bucket position when the
attachment is fully retracted.
For operator comfort, the cab
is insulated from vibration
and noise by four elastofluid
mountings.
Attachment
To meet the requirements of
users, “short radius” CASE
crawler excavators are suitable
for every sort of work-site.
These machines are mainly used
on the following types of work:
• Construction and maintenance of high speed roads and
urban streets.
• Construction
in residential
areas.
• Demolition.
• Forestry work.
• Machine hire companies.
To provide the best possible profitability in the various sorts of
work encountered, the machine
has to be able to change quickly
to a new configuration:
CX75 SR - 00
6
THE ”CASE” ANSWERS
• A choice of one-piece or double
offset boom for digging vertical walled trenches, regardless
of their depth.
•A
choice of different dipper
lengths.
• “MULTIFIT” quick coupler.
• Supply to the most varied types
of implement, using supplementary hydraulic functions
(swing, tool orientation, etc.)
• Reduced
maintenance costs
using EMS (Easy Maintenance
System) which is standard
on the boom foot and head
linkages. This system, which
is also used on the heavy CX
machines, provides a considerable reduction in maintenance intervals (every 1000 h).
General dimensions
Offset boom - dipper 1.75 m
2,23 m
1,07 m
5,97 m
1,16 m
2,97 m
2,70 m
R=1,21 m
0,45 m
CX75SR
0,36 m
2,21 m
2,85 m
1,87 m
3,28 m
2,32 m
4,55 m
Monobloc boom
2,23 m
1,07 m
5,92 m* / 5,91 m**
1,16 m
2,70 m
2,70 m* / 2,95 m**
R=1,21 m
0,45 m
CX75SR
0,36 m
2,21 m
1,87 m
2,85 m
2,32 m
3,28 m
4,49 m
* With 1.70 m dipper
** With 2.10 m dipper
Weight and ground pressure
Shoes 450 mm - bucket
Weight
Ground
operator and full fuel tank
(kg)
Pressure (bar)
Monobloc boom - 1.70 m dipper
7660
0.34
Offset boom and 1.75 m dipper
8060
0.36
Buckets
General purpose
SAE capacity
Width
Weight
Litres
110
130
140
160
240
310
360
mm
300
350
400
450
600
750
850
kg
117
125
138
145
170
200
220
Other types of bucket on application.
CX75 SR - 00
7
Performance data with offset boom and 1.75 dipper
8m
25'
20'
15'
10'
5'
0
25'
7m
6m
20'
5m
15'
4m
F
G
3m
E
2m
CX75SR
1m
0
1m
H
5'
A
2m
3m
B
C D
2,44 m
10'
4m
15'
7m
6m
5m
4m
3m
2m
CX75 SR - 00
8
1,00 m
1,10 m
Trench with vertical walls (maximum offset)
0
Maximun
offset
6,10 m
5,95 m
3,75 m
3,40 m
4,85 m
6,85 m
1,95 m
2,85 m
3940 daN
5690 daN
A Maximum digging reach
B Maximum digging reach at ground level
C Maximum digging depth
D Digging depth 2.44 m (8‘) level bottom
E Maxi dump height
F Overall reach height
G Minimum swing radius
H Vertical straight wall dig depth
Digging force
Breakout force
Maximum working range (zero offset)
1m
Zero
offset
6,50 m
6,35 m
4,20 m
3,80 m
5,15 m
7,20 m
2,25 m
3,25 m
3940 daN
5690 daN
0,185 m
5m
2.10 m
CX75 SR - 00
9
Performance data with monobloc boom
8m
25'
20'
15'
10'
5'
0
25'
7m
6m
20'
5m
F
15'
G
4m
3m
E
2m
CX75SR
1m
0
1m
B
DH
5'
A
2m
3m
C
2,44 m
10'
4m
15'
5m
8m
7m
6m
5m
4m
3m
2m
1m
0
dipper :
A Maximum digging reach
B Maximum digging reach at ground level
C Maximum digging depth
D Digging depth 2.44 m (8‘) level bottom
E Maxi dump height
F Overall reach height
G Minimum swing radius
H Vertical straight wall dig depth
Digging force
Breakout force
CX75 SR - 00
10
1.70 m
2.10 m
6.50 m
6.40 m
4.15 m
3.80 m
5.25 m
7.35 m
1.80 m
3.65 m
3830 daN
5690 daN
6.90 m
6.75 m
4.55 m
4.25 m
5.55 m
7.60 m
2.10 m
4.10 m
–
5690 daN
Lifting capacity
CX75SR with dozer blade - 3.85 m boom - 1.70 m dipper - 210 kg bucket - 450 mm shoes
Reach
Height
2m
front
3m
360°
front
4m
360°
front
5m
360°
5m
1600*
1680*
4m
1770*
1710*
3m
2990*
2240*
front
maxi
360°
front
Maxi reach
360°
1600*
m
4.1
1550*
1270
4.8
1910*
1700
1750*
1160
1590*
1060
5.3
2m
2890*
2540
2210*
1610
1880*
1120
1700*
960
5.5
1m
3440*
2360
2490*
1520
2020*
1080
1860*
920
5.5
0m
2490*
3670*
2260
2670*
1460
2100*
1040
1940*
940
5.4
-1 m
3900*
3620*
2230
2670*
1430
2050*
1030
2040*
1020
5.0
-2 m
4640*
3310*
2240
2450*
1430
2150*
1240
4.4
-3 m
3600*
2600*
2300
2240*
1870
3.4
CX75SR with dozer blade - 3.85 m boom - 2.10 m dipper - 190 kg bucket - 450 mm shoes
Reach
Height
2m
front
3m
360°
front
4m
360°
front
5m
360°
front
maxi
360°
front
Maxi reach
360°
5m
1430*
4m
1490*
1510*
1210
1350*
1100
5.3
1710*
1600*
1180
1370*
940
5.7
3m
1920*
2m
2580*
1m
1390*
m
4.6
2030*
1630
1760*
1130
1440*
850
5.9
3210*
2390
2350*
1530
1920*
1080
1580*
820
5.9
0m
2570*
3570*
2260
2580*
1460
2050*
1040
1770*
820
5.8
-1 m
3540*
3640*
2200
2660*
1410
2070*
1010
1860*
890
5.5
3450*
2190
2540*
1400
1970*
1040
4.9
2930*
2230
2100*
1430
2080*
1410
4.0
-2 m
-3 m
4970*
4590
4150*
CX75SR with dozer blade - offset boom - 1.75 m dipper - 210 kg bucket - 450 mm shoes
Reach
Height
2m
front
3m
360°
front
4m
360°
5m
1570*
4m
1730*
3m
2140*
front
5m
360°
front
maxi
360°
front
Maxi reach
360°
1570*
1600*
m
4.0
1550*
1270
4.7
1780*
1640
1600*
1080
1580*
1010
5.2
2m
2680*
2400
2030*
1500
1710*
1020
1620*
880
5.4
1m
3130*
2110
2270*
1360
1820*
940
1690*
810
5.4
0m
3320*
1950
2400*
1260
1880*
890
1770*
810
5.3
3240*
1890
2390*
1210
1870*
880
4.9
2940*
1910
2180*
1210
1990*
1080
4.3
2290*
2000
2080*
1730
3.3
-1 m
-2 m
-3 m
3920*
4090*
4060
3130*
- Lift capacities are taken in accordance with SAE J 1097
- Lift capacities shown in kg do not exceed 75% of the tipping load or 87% of the hydraulic lift capacity.
- Capacities that are marked with an asterisk are hydraulic limited
- If the machine is equipped with a quick coupler, subtract the weight of the quick coupler from the load shown in the tables to calculate the real
lifting capacity.
CX75 SR - 00
11
Standard attachment
Options
• One-piece boom or double offset boom
• Single-acting system (“hammer” type)*
• Steel tracks 450 mm
• “Multipurpose” circuit (hammer or shears)*
• High performance “ULTRA CLEAN” (1µ) filtration
system
• Double-acting circuit (shears, etc.)*
• “Auxiliary” control valve section
• Backhoe-clamshell circuit*
• Dozer blade
• “MULTIFIT” Hydraulic quick coupler
• 2 travel speeds
• FOPS (roof) cab protection
• Load-holding valves (boom and dipper)
• Self-regulating air conditioning
• Tier 2 engine (reduced smoke emissions and noise
level)
• Rubber tracks 450 mm
• Electric motor speed control
• 2nd auxiliary circuit (clamshell orientation type)*
• Safety valves (boom - dipper)
• Automatic engine speed return to idle
• RH, LH and rear rear-view mirror
(safety when swinging and
reversing)
* Note: availability of these circuits varies depending on
the type of boom and length of the dipper
Standard and optional equipment can vary from
country to country
Conforms to directive 98/37/CE
NOTE: The standard and optional fittings can vary according to the demands and specific regulations of each
country. The illustrations may include optional fittings or fittings not mentioned above. Moreover, the CNH France
Company reserves the right to modify without prior notice its machine specifications, and without incurring any
obligations relating to such changes.
18, Place des Nymphéas
Paris Nord II
95915 ROISSY CDG Cedex
FRANCE
Tel. : 01 49 90 23 00
Fax : 01 49 90 26 15
2602 3028 GB - PRINTED IN FRANCE - 06/02
CX75 SR - 00
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