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Studen t Guide HS-50 A dvanced I 06/200 2 Edition 5 DLM1 C&P Head 85 5.5. 3 Air Pressu r e V alues 5.5 .3. 1 T oo ls and Dev ices – A set of slotted screw drivers – Co mpressed air t e s ting device 5. 5.3. 2 Ad jus …

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06/2002 Edition Student Guide HS-50 Advanced I
5 DLM1 C&P Head
84
5.5.2 Belt Tension of the Z-Axis
➠ Attach the measuring head in front of the toothed belt.
fig 5.5 - 2 Measuring point for the belt tension of the z-axis
NOTE
The measuring point of the measuring pin must be in the middle of the two deflection pulleys.
The measuring pin should be at a maximum distance of 2 - 3 mm, from the toothed belt. 5
➠ Strike the toothed belt, to reach a stimulation of vibration of the open ended toothed belt.
➠ Stretch the belt over the fastening of the driving motor (compare: service manual) if the
frequency of the belt tension does not reach a value of 280 Hz +
10 Hz.
➠ Repeat these instructions until the belt tension is correct.
Messpunkt: Riemenmitte /
measuring point: middle of belt
Student Guide HS-50 Advanced I 06/2002 Edition
5 DLM1 C&P Head
85
5.5.3 Air Pressure Values
5.5.3.1 Tools and Devices
– A set of slotted screw drivers
– Compressed air testing device
5.5.3.2 Adjustment of Air Pressure Values
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fig 5.5 - 3 Adjustment of air pressure values
KEY:
(1) Forced air unit / DLM1
(2) Micro - relay valve
(3) Restrictor valve for the reject circuit
(4) Restrictor valve for the pick - up / placement circuit
NOTE
Use a nozzle type 914 to adjust the blast air. 5
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06/2002 Edition Student Guide HS-50 Advanced I
5 DLM1 C&P Head
86
5.5.3.3 Adjustments of the Air Pressure Values with the Help of a Compressed Air Testing
Device
fig 5.5 - 4 Flow chart determining air pressure values
NOTE
Air pressure values, displayed on the screen of the station computer, under option "Measure air
pressure" of the "Single functions", or in the SITEST program, do not correspond to the air
pressure values actually set at the nozzles.
They solely serve to check that the forced air valve is functioning correctly.
Therefore, the air pressure may not be adjusted with the values displayed on the screen.
Instead, use only the values determined with the compressed air testing device. 5
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