00197463-03_SM_CPP_Customer_EN - 第87页

7 Pressure control valve (PRV) 7.4 Replacing small parts on the PRV Service Manual SIPLACE Multistar (CPP / CPP M) 02/2018 87 Installation Fig.138: Removing the elbow pipe connector ► Remove the elbow pipe connector. Fi…

7 Pressure control valve (PRV)

7.4 Replacing small parts on the PRV

86 Service Manual SIPLACE Multistar (CPP / CPP M) 02/2018

Fig.133: Top board

► Remove the two screws and swing the board up-

wards.

 CAUTION!

Take care not to damage the sensor O-ring.

Fig.134: Side board

► Remove the three screws and then remove the

board.

 CAUTION!

Never loosen or remove the screw in the

middle!

Fig.135: O-ring on vacuum sensor

► Remove the vacuum sensor O-ring.

Fig.136: Plastic ring

► Remove the white plastic ring.

Fig.137: Remove the plunger

► Remove the plunger with the help of a size 10

wrench.

7 Pressure control valve (PRV)

7.4 Replacing small parts on the PRV

Service Manual SIPLACE Multistar (CPP / CPP M) 02/2018 87

Installation

Fig.138: Removing the elbow pipe connector

► Remove the elbow pipe connector.

Fig.139: Check the plunger

► Check the plunger for damage.

► If the plunger is damaged, replace the whole

PRV.

► If the plunger is ok, proceed with the next step.

7 Pressure control valve (PRV)

7.4 Replacing small parts on the PRV

88 Service Manual SIPLACE Multistar (CPP / CPP M) 02/2018

Fig.140: Checking the PRV inside

► Check the inside of the PRV for damage.

► If the inside of the PRV is damaged, replace the

whole PRV.

► If the inside is not damaged, proceed with the

next step.

Fig.141: Cleaning

► Clean the seat of the plunger tip and the venturi

nozzle until the cotton swab is no longer dirty

when it comes out.

Use a cotton swab coated with isopropyl.