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INDEX
On a 2-valve system, the timing of the loaded
8.
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
AG11/AG13 Sequencing Valve
The manifold block containing the sequence valve
1.
cartridge and counterbalance valve cartridge is used
to control two hydraulic circuits with one hydraulic
remote.
When the tractor hydraulic remote is activated, oil
2.
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
Adjustment" on page 4-5
The Push-off cylinder can now be fully extended to
3.
remove all material inside of the scraper bowl.
After the Push-off cylinder has been completely
4.
extended the operator then reverses the tractors
hydraulic remote.
The counterbalance valve will hold the Gate open
5.
until the Push-off cylinder is fully retracted.
After the Push-off cylinder has been completely
6.
retracted the sequence valve now diverts the oil
flow back to the Gate hydraulic circuit.
The Gate cylinders can now be extended, lowering
7.
the Gate to the desired height.
Sequencing Manifold
Adjustment
If the Push-off begins to extend before the Gate is
1.
fully opened, the sequence valve needs to be
adjusted.
Loosen the locknut on the sequence valve
a.
cartridge.
See Figure 4-5
Turn the setscrew 1/4 turn clockwise and check
b.
performance.
Repeat this process until the Push-off does not
c.
move until the Gate is fully opened.
Tighten locknut to maintain this setting.
d.
TABLE OF CONTENTS
Section).
"Sequencing Manifold
.
HOOKUP AND OPERATION
SET SCREW
LOCKNUT
SEQUENCE
VALVE
CARTRIDGE
Figure 4-5: Hydraulic Push-Off Adjustment
If the Gate begins to lower before the Push-off is
2.
fully retracted, the counterbalance valve needs to
be adjusted.
Loosen the locknut on the counterbalance valve
a.
cartridge
See Figure 4-6
Turn the setscrew 1/4 turn counterclockwise
b.
and check performance.
Repeat this process until the Gate does not
c.
move until the Push-off is fully retracted.
Tighten locknut to maintain this setting.
d.
SET SCREW
LOCKNUT
Figure 4-6: Hydraulic Gate Adjustment
.
COUNTER
BALANCE
VALVE
CARTRIDGE
4-5
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