ACCESSORIES MLC650 SERVICE/MAINTENANCE MANUAL
10-2
Published 09-09-16, Control # 229-09
Neutral Position Using Setup Remote
See Figure 10-2 for the following information.
When the setup remote is not sending a command, the valve
spool (2), located in the adapter frame valve assembly (1), is
held in the neutral position by the return springs. When in
neutral, the pin puller cylinders are held in place because
both sides of the cylinders are connected to the tank via the
valve spool.
Extend Pin Pullers Using Setup Remote
See Figure 10-2 for the following information.
When the setup remote sends an extend command for the
front adapter frame pin puller, the IOLC30 control module
energizes the extend solenoid (3). With the extend solenoid
energized, the valve spool shifts to a position that allows
hydraulic fluid from the accessory pump to flow to the piston
end of the cylinders. This causes the cylinder rods to extend,
engaging the pins. At the same time, hydraulic fluid in the rod
side of the cylinders is pushed out and back to the tank.
Retract Pin Pullers Using Setup Remote
See Figure 10-2 for the following information.
When the setup remote sends a retract command for the
front adapter frame pin puller, the IOLC30 control module
energizes the retract solenoid (4). With the retract solenoid
energized, the valve spool shifts to a position that allows
hydraulic fluid from the accessory pump to flow to the rod
end of the cylinders. This causes the cylinder rods to retract,
disengaging the pins. At the same time, hydraulic fluid in the
piston side of the cylinders is pushed out and back to the
tank.
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