Service Manual HS60 - 第207页
Se rv ic e Ma nu al HS- 6 0 6 Mo du la r P C B c onve y or s y st em 03/ 2 003 U S Iss ue 6. 13 Wi dth ad justme nt 205 Æ S et the p a rallelism of the adjustment unit to the fixed side. Æ M anu ally t u rn the spindle a…
6 Modular PCB conveyor system Service Manual HS-60
6.13 Width adjustment 03/2003 US Issue
204
6.13.3.1 Removal/installation
Æ Move the PCB conveyor to the position which allows you best access to the width adjustment
system.
Æ Move the Y-gantries into the area outside the PCB conveyor.
Æ Turn the machine off at the main switch and disconnect the machine from the mains voltage.
Æ Make sure the machine has been properly secured to prevent it being switched on again during
servicing.
Æ Undo the screws fastening the lifting table plate and remove the lifting table plate from the lifting
table unit. See also Fig. 6.11.9
Æ Loosen the eccentric axle of the deflection pulley and relieve the tension on the toothed belt of
the width adjustment system drive (see also Fig. 6.13.25
).
Fig. 6.13.25 Loosening the eccentric axle on the deflection pulley
Æ Undo the two fastening screws on the stepping motor flange and weave the toothed belt out of
the drive.
Æ Undo the fastening screws on the spindle block of the input or output conveyor and lift the spin-
dle block out of the locating pins. You can now remove the toothed belt from the synchronizing
disk.
Æ Undo the second spindle block and remove the toothed belt.
CAUTION
The new toothed belt must not be stretched or kinked!
Æ Place the new toothed belt on the two synchronizing disks for the spindle block and run over
the deflection pulley into the drive unit.
Service Manual HS-60 6 Modular PCB conveyor system
03/2003 US Issue 6.13 Width adjustment
205
Æ Set the parallelism of the adjustment unit to the fixed side.
Æ Manually turn the spindle and place any gauge block between the adjustment unit and the
conveyor side.
Æ Turn the spindle until both adjustment units reach this limit.
Æ Check the distance on both sides with this gauge block.
Æ Tension the toothed belt (see also Fig. 6.13.24) on the eccentric axle until it engages fully with
the teeth of the synchronizing disk.
Please check: The entire width of the toothed belt must be engaged on the synchronizing disk
and must also run along the entire length of the deflection pulley.
6.13.3.2 Setting the tension of the toothed belt for the width adjustment system drive
Æ Position the measuring point of the belt tension measuring device at the strand center (i.e. the
longest distance between two synchronizing disks) of the toothed belt (see also Fig. 6.13.24
).
Æ Set the belt tension according to the following values.
– Width adjustment: 24 Hz (+/- 2 Hz)
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6.13 Width adjustment 03/2003 US Issue
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6.13.4 Replacing the limit switches for the end position of the width adjustment sys-
tem (00365108-02)
DANGER
Please observe the safety instructions in Chapter 2.
Limit switch in the input conveyor:
In the vicinity of the input conveyor, there are 4 limit switches under the conveyor sides. The limit
switch is designed to prevent the conveyor sides hitting one another or the conveyor base.
Limit switch in the output conveyor:
In the vicinity of the output conveyors, there are 2 limit switches for the adjustment unit. They serve
to secure the transport area and to initialize the adjustment unit during width adjustment.
6.13.4.1 Parts
– 00365002-03 Limit switch on the mounting tray
– 00365108-02 Limit switch for width adjustment 1
– 00365109-02 Limit switch for width adjustment 2
– 00362345-01 Limit switch for width adjustment - on the conveyor side