Landoll ICON AG11, Руководство по обслуживанию и запасным частям

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HOOKUP AND OPERATION
4-5
TABLE OF CONTENTS INDEX
8.
On a 2-valve system, the timing of the loaded
machine is critical to its performance. It is important
that the gate and push off wall work as they should.
Adjustments to the timing is made at the sequence
block, located on the tongue of the machine. This
setting is factory set, but in time, can need
re-adjusted
(which is adjustable, Refer to the
Sequencing Manifold Adjustment Section) .
AG11/AG13 Sequencing Valve
1.
The manifold block containing the sequence valve
cartridge and counterbalance valve cartridge is used
to control two hydraulic circuits with one hydraulic
remote.
2.
When the tractor hydraulic remote is activated, oil
flows first to the Gate cylinders until they are fully
retracted (Gate is fully opened.) At this point the
Gate circuits’ hydraulic pressure begins to increase.
Once the pressure threshold is surpassed the
sequence valve diverts the oil flow to the Push-off
hydraulic circuit, Refer to the
“Sequencing Manifold
Adjustment” on page 4-5
.
3.
The Push-off cylinder can now be fully extended to
remove all material inside of the scraper bowl.
4.
After the Push-off cylinder has been completely
extended the operator then reverses the tractors
hydraulic remote.
5.
The counterbalance valve will hold the Gate open
until the Push-off cylinder is fully retracted.
6.
After the Push-off cylinder has been completely
retracted the sequence valve now diverts the oil
flow back to the Gate hydraulic circuit.
7.
The Gate cylinders can now be extended, lowering
the Gate to the desired height.
Sequencing Manifold
Adjustment
1.
If the Push-off begins to extend before the Gate is
fully opened, the sequence valve needs to be
adjusted.
a.
Loosen the locknut on the sequence valve
cartridge.
See Figure 4-5
b.
Turn the setscrew 1/4 turn clockwise and check
performance.
c.
Repeat this process until the Push-off does not
move until the Gate is fully opened.
d.
Tighten locknut to maintain this setting.
Figure 4-5: Hydraulic Push-Off Adjustment
2.
If the Gate begins to lower before the Push-off is
fully retracted, the counterbalance valve needs to
be adjusted.
a.
Loosen the locknut on the counterbalance valve
cartridge
See Figure 4-6
.
b.
Turn the setscrew 1/4 turn counterclockwise
and check performance.
c.
Repeat this process until the Gate does not
move until the Push-off is fully retracted.
d.
Tighten locknut to maintain this setting.
Figure 4-6: Hydraulic Gate Adjustment
SET SCREW
LOCKNUT
SEQUENCE
VALVE
CARTRIDGE
SET SCREW
LOCKNUT
COUNTER
BALANCE
VALVE
CARTRIDGE