ABB Endura AZ40 Kullanım Talimatı - Sayfa 12

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Sayfayı Yazdır

8.4 Cleaning / Replacing sensor assembly aspirator

Referring to Fig. 8.5:

1. Place the sensor assembly on a clean flat surface with the

flange studs pointing up.

2. Use an open-ended

and remove aspirator A. Withdraw the aspirator, nozzle

B and gasket C from flange block D.

3. Examine the aspirator and nozzle for blockages. Remove

any gasket material from the aspirator assembly. Remove

any contamination with an air hose.

WARNING – Bodily injury

– Do not use compressed air for any other

purpose than that for which it is provided

– Never direct a stream of compressed air

towards your body or the body of any other

person

– When handling / connecting compressed air

lines:

– The correct safety procedures must be

observed

– Suitable PPE (goggles / gloves / overalls) must

be worn

CAUTION – Damage to equipment

Do not drill chamber out or scratch inner surfaces

as damage to any of the internal faces will affect

aspirator performance.

4. If aspirator A and nozzle B cannot be cleaned discard

them and fit a new aspirator and nozzle at step 7 onwards.

IMPORTANT (NOTE)

Dispose of the old aspirator / nozzle / gasket in

accordance with the guidelines contained in

Operating instruction OI/AZ40-EN.

5. Clean the aspirator flange counter-bore and flange local

surfaces thoroughly. Ensure no gasket particles fall into the

passage ways.

6. Fit a new gasket C in the aspirator flange counter-bore,

centre it and ensure it is seated correctly.

INS/ANAINST/007-EN Rev. B | Endura AZ40 | Sensor assembly | Orifice and seals kit

in. spanner (wrench) to unscrew

7. Fit the nozzle B into the aspirator A, ensuring it is

seated correctly.

8. Apply a light coating of an anti-seize compound (suitable

for temperatures up to 200 °C [392 °F]) to the threaded

portion E of the aspirator.

9. insert the new or cleaned aspirator /nozzle assembly

into the aspirator chamber and tighten to a torque of

28 ±2 in.-lbs (3.16 Nm) using a

CAUTION – Damage to equipment

Do not overtighten.

in.spanner (wrench).