jcb JS300 Service Manual page 683

Spool Stroke vs Pilot Pressure
Boom Ram
Cylinder Inside Diameter
Rod Diameter
Max Contracted Length
Stroke
Dry Weight
Dipper Ram
Cylinder Inside Diameter
Rod Diameter
Max Contracted Length
Stroke
Dry Weight
E-22
3.0
2.6
2.5
2.0
1.7
1.1
1.0
3.4
3
0 2 4 6
SPOOL STROKE (mm)
Fig 1.
Table 13.
JS300
140mm (5.5 in)
100mm (3.9 in)
2095+/3mm (82.4 in)
1480+/-2mm (58.2 in)
262kg (577 lb)
Table 14.
JS300
150mm (5.9 in)
105mm (4.1 in)
2260mm (89 in)
1632mm (64.2 in)
349 kg (769.4 lb)
9813/5100-1
Section E - Hydraulics
Boom 2
Other
Tab
Priority and
Merge Spool
8 9 10
JS330
140mm (5.5 in)
100mm (3.9 in)
2095+/3mm (82.4 in)
1480+/-2mm (58.2 in)
262kg (577 lb)
JS330
160mm (6.3 in)
110mm (4.3 in)
2425+/3mm (95.4 in)
1733+/-2mm (68.2 in)
365kg (804 lb)
Hydraulic System
Specifications
JS370
150mm (5.9 in)
100mm (3.9 in)
2095+/3mm (82.4 in)
1480+/-2mm (58.2 in)
279kg (615 lb)
JS370
170mm (6.7 in)
120mm (4.7 in)
2514mm (98.9 in)
1822mm (71.7)
428kg (943 lb)
E-22