00197490-03_SM_CP20-P-M2_EN保养维护 - 第50页

6 Pressure control valve (PRV) 6.2 Replacing the membrane and other small parts on the PRV 50 Service Manual SIPLACE SpeedStar (C&P20 P / C&P20 M2) 03/2018 ● Protective membrane: Quantity Description Item no. Rep…

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6 Pressure control valve (PRV)
6.2 Replacing the membrane and other small parts on the PRV
Service Manual SIPLACE SpeedStar (C&P20 P / C&P20 M2) 03/2018 49
6.2 Replacing the membrane and other small parts on the
PRV
NOTICE
Example shown as diagram
Depending on the version of your pressure control valve (DRV), there may be minor devi-
ations from this (e.g. material, color). However, the procedure is the same for all PRV.
Parts
Select the required spare part:
●
Self-tapping screws:
Fig.61: Screws
1. Self-tapping screw PT-WN1442-2.5X6-PT10
[03119666‑xx]
Self-tapping screw PT-WN1413-2.5X6-PT10
[03119678‑xx]
2. Self-tapping screw PT-WN1442-2.5X8-PT10
[03119677‑xx]
3. Self-tapping screw PT-WN1412-2.5X14-PT10
[03119676‑xx]
●
O-ring / centering ring:
Fig.62: O-ring / centering ring:
1. O-ring I3601 B-1.5X1.08-N-NBR70
[03119672‑xx]
2. Centering ring VADI-MPPE-QS6-24VDC–SA
[03119675‑xx]
6 Pressure control valve (PRV)
6.2 Replacing the membrane and other small parts on the PRV
50 Service Manual SIPLACE SpeedStar (C&P20 P / C&P20 M2) 03/2018
●
Protective membrane:
Quantity
Description Item no.
Replacement membrane for pressure control valve C&P20P 03157917‑xx
Insertion aid for membrane 03165256‑xx
Self-tapping screw PT-WN1442-2.5X8-PT10 03119677‑xx
Membrane cover for pressure control valve 03159830‑xx
Cross-head-panhead screw ISO7045–M2x5-A2-50-H 03010198‑xx
Washer ISO7098–2–200HV–A2 03100631‑xx
O-Ring, small 03119672‑xx
Preparation
► Remove the head from the machine. For details about removing and fitting the placement
head, refer to the service manual for your machine.
Fit the head on the head mount [03056231‑xx].
► Make sure that the component sensor protective cap is fitted.
1.1.3 "Safety instructions for the component sensor" [}6]
Removal
Fig.63: PRV parts
 CAUTION!
Do not mix up the parts
The PRV parts are aligned and are not to be
mixed with the parts of other PRVs.
.
► Remove the pressure control valve.
6.1 "Replacing the PRV" [}47]
NOTICE
Depending on the spare part to be replaced, you may not need to do all the following re-
moval steps.
6 Pressure control valve (PRV)
6.2 Replacing the membrane and other small parts on the PRV
Service Manual SIPLACE SpeedStar (C&P20 P / C&P20 M2) 03/2018 51
Fig.64: Removing the cover
► Remove the two screws and take the cover off
the PRV membrane.
Fig.65: Checking the membrane
► Carefully check the membrane for any damage.
ð If no damage can be found, close the cover
window again.
You do not need to replace the membrane in
this case.
ð If there is any damage, proceed with the next
step.
Fig.66: Removing the cover plate
► Remove the three screws fastening the cover
plate and remove the cover plate.
Fig.67: Top board
► Remove the two screws and swing the board
slightly upwards.
 CAUTION!
Make sure that you do not swing the board up
too far. If you do, this could cause the flexprint
cable to break.
Take care not to damage the sensor O-ring.
.
Fig.68: Side board
► Remove the three screws and then remove the
board.
 CAUTION!
Never loosen or remove the screw in the
middle!
.