jcb JS300 Service Manual page 747

Table 3. Port Identification
Item Port Function
1 PH 2 Stage MRV
2 Linear Travel Spool
3 DR2 Drain
4 pb6 Travel (L) Backwards
5 pb7 Bucket Close Spool
6 Bucket Close ARV
7 pb8 Boom 1 Down Spool
8 pb9 Arm 2 In Spool
9 Boom Up ARV
10 pc3 Swing/Priority Valve Dipper
11 Option Tab/Option ARV
12 pbr1 Option/Tab Option
13 T6 Tank
14 pb5 Arm 1 In
15 pb4 Tank
16 Arm Out ARV
17 pb3 Swing Right
18 DR1 Drain
19 pb2 Hammer/Auxiliary Option
20 Option/Blank ARV
21 pb1 Travel (R) Backwards
22 PG Auto Power Boost Pressure Switch
K Fig 4. ( T
For port location,
E-86
E-85).
9813/5100-1
Section E - Hydraulics
Hydraulic Control Valve
Layout
E-86