Cleaning; Positioners 6Dr5..0, 6Dr5..3 And 6Dr5..5 - Siemens SIPART PS2 Operating Instructions Manual

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Service and maintenance

6.2 Cleaning

6.2

Cleaning

The positioner is maintenance-free to a large extent. Screens are installed in the pneumatic

connections of the positioners to protect them from rough dirt particles. If there are dirt particles

in the supply air (PZ), they damage the screens and hamper the function of the positioner. Clean

the screens as described in the following two chapters.

6.2.1

Procedure for removal and cleaning of the sieves

1. Switch off the supply pressure PZ.

2. Remove the pneumatic pipelines.

3. Unscrew the lid of the 6DR5..0 or 6DR5..3 enclosure.

4. Remove the three screws on the pneumatic terminal strip.

5. Remove the sieves and O-rings behind the terminal strip.

6. Clean the sieves, e.g. using compressed air.

Procedure for installation of the sieves

Damage to the polycarbonate enclosure 6DR5..0

• The enclosure is damaged due to screwing in the self-tapping screws improperly.

• Ensure that the available thread pitches are used.

• Turn the screws anticlockwise until they engage noticeably in the thread pitch.

• Tighten the self-tapping screws only after they have engaged.

1. Insert the sieves into the recesses of the enclosure.

2. Place the O-rings on the sieves.

3. Insert the pneumatic terminal strip.

4. Tighten the three screws. Note: With the polycarbonate enclosure, the screws are self-

tapping.

5. Place the lid on and tighten it.

6. Connect the pneumatic pipelines again.

CAUTION

Compact Operating Instructions, 11/2022, A5E03436620-AG

SIPART PS2 (6DR5...)

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