1_NXT Conveyor(1.0)E.pdf - 第10页

・ Rear side 5. Clamper raised position measurement. Cut the air supply to the machine. Remove the slow clamp speed controller as shown in the photo below. Fully screw the jig (PZ14950) into the hole where the speed contr…

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1.4 Conveyor up/down height adjustment (current M3 type)
Downward end type PM45780
Backup plate type PM47270
1. Remove the parts camera and check the installation surface for rust or unevenness
before placing the jig (PM45780) on the surface.
2. Remove the head and set the dummy head jig (AA18T00) in its place. Set a dial gage
stand on the dummy head jig and set the dial gage to 0 on the jig (PM45780). Unclamp
the conveyor.
3. The height of the rail that contacts the cam follower should be +/- 0.25mm in relation to
the jig. On the machine it is not possible to run the dial gage along the rail in one
motion, therefore change the position of the dial gage as necessary and measure to
the end of the rail.
4. If necessary use the hollow bolt to adjust the height of the rail.
Caution: at the front side there is a lock nut on the underside.
NXT Repair Training Textbook
Conveyor Unit
・ Rear side
5. Clamper raised position measurement.
Cut the air supply to the machine. Remove the slow clamp speed controller as shown
in the photo below. Fully screw the jig (PZ14950) into the hole where the speed
controller was removed.
6. Supply the air and clamp the conveyor. (Stop at the middle position where clamp high
speed switches to low speed). Set the jig (PM47270) in the parts camera position and
set a dial gage to 0 on the jig.
7. Run the dial gage over the part where the back up plate sits and check that the total
difference in flatness is less than 0.05mm.
PZ14950
NXT Repair Training Textbook
Conveyor Unit
8. If it was out of tolerance loosen the 22mm nut and use a 14mm spanner to rotate the
shaft and set the flatness.
If there is a difference between the reference and secondary rail, loosen the 10mm nut
and move the center shaft to even out the difference. At this time do not move only
one side but move each side halfway towards the other to equalize their height.
To fix any imbalance between the left and right sides loosen the M3 x 4 bolt(s) on the
reverse side of the linear guide. Apply low strength adhesive (Loctite 222) to these
bolts.
NXT Repair Training Textbook
Conveyor Unit