00198608-02_SM_CP20P2_Kunde_EN - 第48页

6 Aperture ring, holding circuit and silencer 6.1 Replacing the aperture ring/holding circuit/sealing disc 48 Service Manual SIPLACE SpeedStar (C&P20 P2) 01/2019 Installation Fig.60: O‑Ring and sealing disc ► If the…

6 Aperture ring, holding circuit and silencer

6.1 Replacing the aperture ring/holding circuit/sealing disc

Service Manual SIPLACE SpeedStar (C&P20 P2) 01/2019 47

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

NOTICE

Description example

The description uses the example of the aperture ring. The procedure for the holding circuit

is the same. Any relevant differences will be mentioned explicitly.

Fig.58: Dismantling the cover and aperture ring

► Remove the fastening screw(1) (TX10)

and then take off the cover.

► Remove the three screws(2) (TX10)

fastening the aperture ring.

► Carefully lever the aperture ring off the

locating pins. Make sure that the O-ring

is not damaged.

Fig.59: Cleaning

► Clean the seat of the aperture ring with

a cleaning cloth, coated with isopro-

panol.

 CAUTION!

Do not use compressed air for

cleaning!

6 Aperture ring, holding circuit and silencer

6.1 Replacing the aperture ring/holding circuit/sealing disc

48 Service Manual SIPLACE SpeedStar (C&P20 P2) 01/2019

Installation

Fig.60: O‑Ring and sealing disc

► If the O-ring (1) is damaged, replace it

with a new one.

► Correctly position the sealing disc on

the aperture ring. Make sure all open-

ings are aligned. Pay attention to the

pin.

Fig.61: Inserting the aperture ring

► Position the aperture ring and sealing

disc correctly in the star carrier. Pay at-

tention to the pin.

Fig.62: Fasten the aperture ring

► Vacuum pump operation with aper-

ture ring only: Fix the aperture ring

with the three fastening screws (1)

(TX10, M3x10, torque 1.3 Nm).

► Venturi operation with holding cir-

cuit only: Fix the holding circuit into

place with the three fastening screws.

(TX10, M3x10, torque 0.25Nm).

6 Aperture ring, holding circuit and silencer

6.1 Replacing the aperture ring/holding circuit/sealing disc

Service Manual SIPLACE SpeedStar (C&P20 P2) 01/2019 49

Fig.63: Greasing the O-ring

► Grease the O-ring. To do this, use a

cleaning stick coated with "Isoflex To-

pas 5051 50ml (green)".

Fig.64: Fitting the cover

► Vacuum pump operation:

Fit the cover (2) with a screw(1) (TX10,

M4x14, torque 1.3Nm).

► Venturi operation only:

Fit the silencer. Tighten the screw

fastening the silencer by hand.