Takeuchi TL150 Workshop Manual

IV-47
HYDRAULIC UNITSCONTROL VALVE
T9D201
P
T
1
T9D202E
SECTION Z-Z
2
3
4
4
5
AB
Z
Z
T9D203E
SECTION Z-Z
2
3
4
4
T
5
AB
Z
Z
OPERATION
When the Spool is in the Neutral Position
When the spool is not moved (in the neutral posi-
tion), the oil supplied from the pump flows into the
valve through port P and flows via the bypass pas-
sage (1) to port T to return to the tank.
When the Spool is Moved
Arm, Bucket Section
When the pressure is applied to the pilot chamber
(3), the spool (2) is moved to the right of the neutral
position and the center bypass passage (4) is closed.
The oil that flows from the pump lifts the poppet (5)
and runs through the inner passage of the spool (2)
to port B to be supplied to the actuator.
On the other hand, the oil returned from the actuator
flows into port A, and runs through the inner passage
of the spool (2) to be supplied to the next section.
When the spool (2) is moved to the left of the neutral
position, the oil is supplied to the actuator through
port A, and the oil returned from the actuator flows
into port B.
Auxiliary Section
When the pressure is applied to the pilot chamber
(3), the spool (2) is moved to the right of the neutral
position and the center bypass passage (4) is closed.
The oil that flows from port P lifts the poppet (5) and
flows through port A to be supplied to the actuator.
On the other hand, the oil returned from the actuator
flows into port B and flows via the tank passage T to
return to the tank.
When the spool (2) is moved to the left of the neutral
position, the oil is supplied to the actuator through
port B, and the oil returned from the actuator flows
into port A.

Takeuchi TL150 Specifications

General

Travel Speed - High	11.2 mph (18 km/h)
Max Travel Speed	12.4 km/h
Width	1880 mm
Height	2320 mm
Lift Height	10.5 ft (3.2 m)