80S-20贴片机 - 第326页
9 12-Segment Revolver Head (10000) SIPLACE 80S-20/F4 Service Manual 9.6 Star Complete Edition 07/97 9 - 30 9.6.6 Adjustin g the Forced Air Unit 7 HVWHTXLSPHQW – Compres sed air te sting device, item no. 00 313523 -01 PL…
SIPLACE 80S-20/F4 Service Manual 9 12-Segment Revolver Head (10000)
Edition 07/97 9.6 Star Complete
9 - 29
9.6.4 Removing and Fitting the Star Motor
PLEASE NOTE
This work may only be carried out by Siemens service technicians or by the customer’s appropriately trained
personnel.
Spare parts
Star drive, from item no. 00319908S01
● Remove the front part of the placement head (see section 9.1.7).
● Remove the complete star (see section 9.6.1).
● Disconnect plug-in connections X13 and X14 from head board C0005.
● Undo the hexagon socket screw (M3 x 8).
● Undo the three hexagon spacer (M3 x 9, M3 x 7 and M3 x 10, see pos. 5, 6 and 7, Fig. 9.3.1, Page 9 - 16.
● Disconnect plug-in connections X3 to X12 from distributor board.
● Carefully pull the hose off the compressed air sensor.
● Undo the four hexagon socket screws (M5 x 16) and remove the star motor (see Fig. 9.6.1).
● When re-installing the star motor, proceed in the reverse sequence of operations.
● Regarding installation of the complete star, see section 9.6.2.
● For recording the star axis zero point correction, see section 9.6.3.
NOTE
The terminals of the motor should point upwards.
9.6.5 Replacing the Forced-Air Unit
Spare parts
Forced-air unit, from item no. 00319777S01
● Remove plug X6 from distributor board.
● Undo the hexagon socket screw (M2 x 10) of the cable holder.
● Pull the compressed air hose off the star assembly.
● Pull the compressed air hose off the Y branch.
● Remove the compressed air hose from the switching valve by undoing the hexagon screw (width across
flats 8).
NOTE
In the case of malfunctions change only the complete forced air unit.
● When re-installing the forced air unit, proceed in the reverse sequence of operations.
9 12-Segment Revolver Head (10000) SIPLACE 80S-20/F4 Service Manual
9.6 Star Complete Edition 07/97
9 - 30
9.6.6 Adjusting the Forced Air Unit
7HVWHTXLSPHQW
– Compressed air testing device, item no. 00313523-01
PLEASE NOTE
The forced air values
that are displayed on the station computer monitor when you select the "Measure forced
air pressure“ option from "Single functions“ or "Test software“ do
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correspond to the air pressures actually
set at the nozzle. They are only used to check that the forced air valve is working correctly.
For this reason, the forced air pressure must
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be set using the values displayed on the monitor. It must
only be set using the compressed air testing device.
The two forced air circuits are activated via a single valve and are thus interdependent.
Nevertheless, various pressures can be set for each circuit using two different flow control valves (see Fig.
9.6.1; points 5 and 6).
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● Load the Sitest program.
● Sitest menu → Head reference run → Close and turn nozzles.
● Sitest menu → Head board → Placement circuit → Switch over forced air.
● Hold the sensor of the compressed air tester against the nozzle (type 714 nozzle recommended) in the
pick-up/placement position.
● Set a value of 0.15 bar for the pick-up/placement circuit (see Fig. 9.6.1; point 5)at the compressed air flow
control.
● Hold the sensor of the compressed air tester against the nozzle in the reject position.
● Set a value of 0.25 bar for the reject circuit (see Fig. 9.6.1; point 6) at the compressed air flow control.
● Repeat the adjustment process several times since the pick-up / placement circuit and the reject circuit are
interdependent.
NOTE
Make sure that the hose of the measurement sensor sits tight on the nozzle.
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Pick-up / placement circuit: 150 mbar (100 – 200 mbar) e.g.: 250 mbar
Reject circuit: 250 mbar (200 – 300 mbar)
There is no sensor
in the reject circuit
SIPLACE 80S-20/F4 Service Manual 9 12-Segment Revolver Head (10000)
Edition 07/97 9.6 Star Complete
9 - 31
Fig. 9.6.1 Star complete with drive and forced air unit
1 Star motor
2 Forced air unit
3 Front part of the housing
4 Star complete
5 Flow control for pick-up/placement circuit
6 Flow control for reject circuit