Case WX145 - Hydraulic System

SECTION 8
8-24
HYDRAULIC SYSTEM
PUMPS
The hydraulic system is controlled by 3 pumps, 2 main ones and an independent one for slewing. The engine
and the pumps are monitored by the “Power Limit Control” system.
Up to 7 power levels can be selected for digging and lifting, included the levelling mode for fine works. The
power level can be increased automatically with “Drive” mode.
Main pumps ........................................................................... No. 3 at variable displacement, at axial pistons.
CYLINDERS (ø for stroke)
SLEWING
The slewing function is actuated by a closed hydraulic circuit, driving a mechanical gearbox with built-in
automatic static brake, with 3 possibilities of calibration.
TRAVEL
Transmission with clutch pack.
WX 145 WX 165 WX 185
Maximum displacement
l/min
(gal/min)
2 x 125 + 80
(2 x 32.90 + 21.10)
2 x 145 + 80
(2 x 38.20 + 21.10)
2 x 175 + 100
(2 x 46.10 + 26.30)
Attachment / travel
bar
(psi)
340 / 345
(4929 / 5002)
Power Boost
bar
(psi)
370
(5364)
Slewing pump
bar
(psi)
390
(5654)
Pilot pump
bar
(psi)
45
(652)
WX 145 WX 165 WX 185
Monoboom lifting cylinder mm in 105 x 1041 4.13 x 40.98 115 x 1065 4.53 x 41.93 125 x 1019 4.92 x 40.12
Placing boom cylinder mm in 105 x 1023 4.13 x 40.27 115 x 1012 4.53 x 39.84 125 x 981 4.92 x 38.62
Dipper cylinder mm in 105 x 1176 4.13 x 46.30 120 x 1085 4.72 x 42.72 130 x 1290 5.12 x 50.79
Bucket cylinder mm in 100 x 870 3.94 x 34.25 105 x 1025 4.13 x 40.35 110 x 1066 4.33 x 41.97
Placing boom cylinder mm in 150 x 762 5.90 x 30.00 160 x 759 6.30 x 29.88 170 x 734 6.69 x 28.90
WX 145 WX 165 WX 185
Slewing speed rpm 9.5
Slewing moment (SAE J1371) kNm (lbs·ft) 38 (27485) 42 (30378) 53 (38334)
WX 145 WX 165 WX 185
Maximum travel speed at job site km/h (mph) 8 (4.97)
Maximum travel speed on the road km/h (mph) 20 (12.43)
High speed on road (optional) km/h (mph) 30 (18.64)
Maximum drawbar pull (field) kN (lbf) 91 (20457.6) 115 (25853)