Specifications - jcb JS300 Service Manual

Main Hydraulic Pump
Type
Displacement Volume
Operating Pressure RATED
Maximum Output
Minimum Output
Dry weight
Type
Displacement Volume
Rated Speed
Operating Pressure RATED
Maximum Output
Servo Pump
Type
Displacement Volume
Working Pressure
Type
Displacement Volume
Working Pressure
Proportional Solenoid
Max. primary pressure
Max, back pressure (allowable pressure)
Secondary pressure setting range
Max. flow rate
Electrical specifications
1 Rated current
2 Coil resistance (at 20°C)
3 Recommended fluctuation of proportional solenoid current 80 Hz, 200 mA
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Specifications

Table 2. JS300
Twin variable displacement piston pump
139 cm 3 /rev (8.48 in
343 bar (4975 lb/in
250 l/min x 2 (55 gal/min)
57 l/min (12.5 gal)
132 kg (291 lb)
Table 3. JS330, JS370
Twin variable displacement piston pump
3
160 cm /rev (9.76 in
1900rpm
348 bar (5047 lb/in
304 l/min x 2 (67 gal/min)
Table 4. JS300
Fixed Displacement Gear Pump
10 cm 3 /rev (0.61 in
37-43 bar (537-624 lb/in
Table 5. JS330, JS370
Fixed Displacement Gear Pump
3
20 cm /rev (1.22 in
46 bar (667 lb/in
Table 6.
39 bar (566 Ib/in
9.8 bar (142 Ib/in
0 - 39 bar (0 - 566 Ib/in
10 l/min (2.2 gal/min)
700 mA
17.5 ohms
9813/5100-1
Section E - Hydraulics
Hydraulic System
3 /rev ) x 2
2
)
3
/rev) x 2
2 )
3 /rev)
2 )
3
/rev)
2 )
2 )
2 )
2 )
Specifications
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