Takeuchi TB 250 - Hydraulic Pilot Unit

4-31
4
CONTROL SYSTEM
DISASSEMBLY AND ASSEMBLY
Hydraulic pilot unit
A type (ISO)
1. Right pilot valve
2. Left pilot valve
3. Pilot valve (travel)
4. Control valve
5. Pilot valve
6. Shuttle valve
7. Hydraulic tank
Table of connection
1
R1 ↔ pb1
4
1
R2 ↔ pa2
4
1
R3 ↔ pa1
4
1
R4 ↔ pb2
4
1
RP ↔ TRP
3
1
R
T ↔ TRT
3
2
L1 ↔ SHAA
6
2
L2 ↔ pb7
4
2
L3 ↔ pb8
4
2
L4 ↔ SHAB
6
2
LP ↔ 1SSP
5
2
L
T ↔ 1SST
5
3
TR1 ↔ pa4
4
3
TR2 ↔ pb4
4
3
TR3 ↔ pa3
4
3
TR4 ↔ pb3
4
3
TRP ↔ 1SSP
5
3
TR
T ↔ 1SST
5
3
TR
T ↔ T1
7
5
L ↔ pb6
4
5
R ↔ pa6
4
6
SHAA ↔ pa8
4
6
SHAB ↔ pa7
4
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