jcb JS300 Service Manual page 663

JS300
Item Description
1 Swing Motor
2 Rotary Coupling 6 Port
3 Arm Cylinder
4 Arm HBCV
5 Travel Motor/Gearbox
6 Coupling Male 1/2
7 Coupling Female 1/2
8 TAB Cylinder
9 Boom HBCV LH
10 Boom HBCY RH
11 Bucket Cylinder
12 Main Control Valve
13 Boom Cylinder
14 L/F DCV Closed Centre
16 Pressure Switch
17 Shut Off Valve
18 Shut Off Valve
19 Hammer/Aux Valve
21 Check Valve 1 bar
22 Hammer Return Filter
23 Cooling Pack
24 Check Valve 3 Bar
25 Drain Filter
26 Breather
28 Hydraulic Tank
29 In Line Filter
30 Filter Strainer
31 Relief Valve
32 Main Return Filter
33 Return Manifold
34 Pressure Switch
E-2
Schematics
9813/5100-1
Section E - Hydraulics
Systems and Schematics
Schematics
Variant
HBCV
Low Flow
Low Flow
TAB
HBCV
HBCV
Low Flow
HBCV
Hammer/Aux
Hammer/Aux
Hammer/Aux
E-2