FX-3R Maintenance Guide
2-11
2-4. Replacing the Head Up Cylinder
Rev. 1.00
1) Turn the finger valve to stop the air supply
and disconnect the air tubes.
2) Remove the head up springs from both
ends, and then remove the nut from the
top end of the air cylinder to detach the
release bar. (Pay special attention so that
the wave washer is not lost.)
3) Remove the cap bolts c (×2) securing the
air cylinder to detach the air cylinder.
(When replacing only the nozzle down
sensor, it is not necessary to detach the
air cylinder.)
4) Remove the cap bolts (×2) securing the
nozzle down sensor bracket to detach the
nozzle down sensor together with the
bracket.
(If the nozzle down sensor needs to be
replaced:)
5) When mounting the air cylinder, adjust the
end face so that it is in parallel to the
cylinder mount and secure them.
Figure 2-4-1 Head-up Cylinder Adjustment
Position
2mm
Nozzle down sensor
c SM6033002TN
SEMS cap bolt M3×30
40046524
Air cylinder
Release bar
PC0105080000
Speed controller
Nozzle down sensor
Figure 2-4-2 Mounting of Nozzle
Down Sensor
6) Mount the nozzle down sensor.
Adjust the nozzle down sensor bracket
position so that the clearance between
the sensor and release bar is 2 mm.
7) If the speed controller has also been
replaced, it is necessary to carry out the
adjustment before mounting the release
bar.
<Speed controller adjustment procedure>
c Call up the MS parameters from the top menu and select [Simple Control] → [MSP] tab in
the function bar. In this status, press the emergency stop button.
d Select [nozzle up cylinder] and turn ON or OFF the cylinder to adjust the displayed time
(msec.) to the specification value. Adjust the time by turning the knob of the speed controller.
Specification value: Air cylinder down time…140±5 msec.
(The difference between the left and right is 5 msec. or less.)
e After the adjustment has been completed, secure the knob firmly.
(8) Insert the release bar into the rod of the cylinder, put the wave washer, and turn the release bar
until the cylinder nut is stopped.
(At this time, it is not necessary to adjust the speed controller and MS parameter.)
∗ Manually operate the solenoid valve to check that the release bar moves up or down
smoothly.
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