jcb JS300 Service Manual page 681

Swing Motor
Type
Displacement
Rated Pressure
Max Pressure
Max Flow
Relief Setting
Max Speed
Brake Torque
Brake Pressure Release
Max Brake Pressure Release
Dry Weight
Type
Displacement
Rated Pressure
Max Pressure
Max Flow
Relief Setting
Max Speed
Brake Torque
Brake Pressure Release
Max Brake Pressure Release
Dry Weight
Swing Gearbox
Reduction Gear Ratio
Reduction Gear Ratio
Output Torque
Output Speed
Oil Quantity
Dry Weight
E-20
Table 7. JS300
Fixed displacement piston motor
180 cm 3 /rev (11.0 in
255 bar
331 bar
291 l/min (64 UK gal)
290 bar (4206 Ib/in
1400 rpm
1050Nm (775 lbf ft)
24 bar (348 Ib/in
49 bar (711 Ib/in
77kg (170 lb)
Table 8. JS330, JS370
JS330
Fixed displacement piston motor
210 cm 3 /rev (12.8 in 3 /rev)
255 bar
331 bar
291 l/min (64 UK gal)
279 bar (4047 Ib/in 2 )
1400 rpm
1050Nm (775 lbf ft)
24 bar (348 Ib/in 2 )
2
49 bar (711 Ib/in )
77kg (170 lb)
Table 9. JS300
21.5 : 1
Planetary gears with two gear reduction
Table 10. JS330, JS370
23.17:1
19649 Nm (14492 lbf ft)
60.2 rpm
approx 16 litres
approx 300 kg (661 lb)
9813/5100-1
Section E - Hydraulics
Hydraulic System
3 /rev)
2 )
2 )
2 )
JS360
Fixed displacement piston motor
210 cm 3 /rev (12.8 in 3
284 bar
331 bar
294 l/min (64.6 UK gal)
284 bar (4119 Ib/in 2 )
1400 rpm
1050Nm (775 lbf ft)
24 bar (348 Ib/in 2 )
2
49 bar (711 Ib/in )
77kg (170 lb)
Specifications
/rev)
E-20