Shibaura ST329, Operator'S Manual

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CONTROLS, INSTRUMENTS AND OPERATIONS
30
TWO-SPOOL CONTROL VALVE (OPTIONAL )
The optional two-spool control valve is mounted on
the right side of the clutch housing beside the en-
gine hood. This valve is used mainly for front end
loader operation, but may also be used to operate
other front-mounted implements.
With loader fitted, pull the control lever rearwards
to the loader arms and push forwards to lower
them. Moving the lever to the right will “dump” the
bucket to the dig position.
NOTE :
When the control lever is pushed right to
the second position, a regenerative feature is acti-
vated and the exhaust oil from one end of the cyl-
inder is transferred to the other end of the cylinder.
When this feature is used, the cylinder will operate
at a faster rate. This regenerative feature cannot be
used with single-acting cylinders.
Push the control lever forward or pull it sideways to
the left to retract the cylinder. Release the control
lever to stop the cylinder in any position before it is
fully extended. The lever automatically returns to
Neutral. Fully forward past the detent position is a
“FLOAT” position which allows a cylinder to extend
or retract freely. The simultaneous operation of two
services may achieved by moving the lever diago-
nally.
WARNING
：
： ：
：
Before disconnecting cyl-
inders or equipment, make certain that
the implement or equipment is sup-
ported securely.
WARNING
：
： ：
：
Remote couplers must be
properly mounted and securely
fastened to tractor mounting bracket
for proper function of safety disconnect
feature.
Figure 41 - Two- spool Control Valve (Optional)
Figure 42 - Operating Two-spool Control Valve