00196845-02_AI_Vakuumpumpe_SXDX4_X-Serie-S_de_en - 第112页
Fitting the Vacuum Pump Retrofit compressed air supply 3.2.21 Final Work: 112 Vacuum Pump Vakuumpumpe 3.3 3 . 3 R e t r o f it c o m p r e s s e d a ir s u p p ly Retrofit compressed air supply NOTICE Scheduled modificat…
Fitting the Vacuum Pump
3.2.21 Final Work: Changeover
Vacuum Pump Vakuumpumpe 111
3.2.21.4
3.2.21.4 Checking the Hold Circuit Vacuum System C&P20A for Air-Tightness
Checking the Hold Circuit Vacuum System C&P20A for Air-Tightness
Procedure
During the vacuum test, always measure at an open nozzle. In the case of large nozzles (1235), the
greater amount of escaping air usually makes the vacuum fall to values under -100 mbar. The reason
for this sharp drop – in the case of large nozzles nozzles without component – is the small reducing nipple
diameter in the reflecting ring, compared to the nozzle diameter.
With a component, vacuum values of -500 to -600 mbar are achieved.
If the above mentioned values are not achieved, the cause is usually a hose in the head area which has
not been properly pushed on as far as the end stop. Proceed as follows:
► Use the hose pliers to push all hoses on properly.
► Repeat the vacuum measurement.
Checking the overall function of the hold circuit vacuum system C&P20A
A vacuum test can be used to check the complete function of the vacuum system, as in the Venturi prin-
ciple.
The vacuum sensor in the hold circuit is only used to check whether the small nozzles in the reflecting
ring are free of dirt.
CAUTION
Minimum vacuum
At each placement machine/head there should be – depending on the nozzle configuration – a
vacuum of at least -500 mbar (for very large nozzles 1235) and
-600 mbar (for very small nozzles 1006) present!
The measurement is performed at a nozzle, using an external device, which corresponds to a
closed nozzle (with component).
During operation, do not undershoot a vacuum of -400 mbar. If this still happens, please contact
your SIPLACE hotline.
NOTICE
Avoid offset errors
To avoid offset errors, it can be advisable to perform both measurements with the same meas-
uring device.
► Measure the vacuum with an external pressure
measuring device:
⇨ At a connection (1) for the "distributor placement
head vacuum" on the gantry
⇨ At an open nozzle in the hold circuit on the place-
ment head.
⇨ The pressure difference may only be 30-50 mbar! If it
exceeds this, the system is not air-tight.
Fitting the Vacuum Pump
Retrofit compressed air supply 3.2.21 Final Work:
112 Vacuum Pump Vakuumpumpe
3.3
3.3 Retrofit compressed air supply
Retrofit compressed air supply
NOTICE
Scheduled modification at the proportional controller (pressure control valve)
The scheduled modification is related to all machines where all heads are operated with vacu-
um pumps.
In future one of the two proportional controllers [03065425-xx] is inapplicable. The compressed-
air piping will be converted accordingly at this place for the placing/holding circuit.
► If the proportional controller is missing remount it in case of a retrofit to compressed air op-
eration.
⇨ More information in detail was not available at the copy deadline.
Maintenance
4.1.1 Tools, Consumables, Spare and Wear Parts Maintenance Tasks for Vacuum Pump
Vacuum Pump Vakuumpumpe 113
4
4 Maintenance
Maintenance
4.1
4.1 Maintenance Tasks for Vacuum Pump
Maintenance Tasks for Vacuum Pump
SXDX4
X34iS
4.1.1
4.1.1 Tools, Consumables, Spare and Wear Parts
Tools, Consumables, Spare and Wear Parts
▪ If needed, filter insert [03077677-xx]
SXDX4 X34iS
▪ Assembly instructions for vacuum pump X series S, SX4/DX4 [00196845-xx]
▪ Service manual for your machine
NOTICE
Observe the maintenance instructions
The following chapters are only excerpts from the maintenance manual.
► Refer to the maintenance manual for your machine if you need complete information about
maintenance of the vacuum pump and C&P20A.
NOTICE
SX4/DX4: The vacuum pumps are options.
The vacuum pumps are located at locations 1 and 4, each behind the COT insert.
► Carry out the maintenance tasks on all vacuum pumps in your machine.
NOTICE
X series S: locations 1 and 4
The vacuum pumps are located at locations 1 and 4, each behind the COT insert.
► Carry out the maintenance tasks on all vacuum pumps in your machine.