Replacing The Head Up Cylinder - JUKI KE-1070 Maintenance Manual

2-6. Replacing the Head Up Cylinder

(1) Turn OFF the compressed air to the main
unit 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) Loosen the set screws of the auto switch.
(4) Remove the M3
the air cylinder and detach the air
cylinder.
(5) When mounting the air cylinder, adjust
the end face so that it is in parallel to the
cylinder mount and secure them.
(6) Mount the auto switch. At this time,
mount the auto switch at a position 16.5mm from the lower end of the cylinder.
(7) If the speed controller has also been replaced, it is necessary to carry out the adjustment
before mounting the release bar.
<Procedure>
Carry out the origin return once to call up the MS parameter, and press the right mouse
button. In this status, press the emergency stop button.
Select the head 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
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.
(9) For the air cylinder on the IC head side,
remove two screws shown in the Figure on
the right, and then replace the cylinder.
(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.
Maintenance Guide
30 cap bolts securing
Air cylinder down time 120±5 msec.
(The difference between the left and right is 5 msec. or less.)
2-20
Air cylinder
Release bar
KE-2080 (IC head side)