Specifications

Page 37

4.3.4 RTP30 Class 2 Hygienic Mechanical Seal.

Fig 20 Class 2 Hygienic Mechanical Seal.

Read the general procedures before proceeding, refer to section 4.3.1.

- Remove dome nuts (36), front cover (38), rotor retainers (35), rotors (41)

and front cover o-ring (39), see section 4.1.

- The seal can now be accessed for inspection.

- Remove o-ring (25), from the end of the shaft.

- Remove the rotary seal face assembly from the shaft.

- If required, remove the seal housing (67) from the rotorcase by releasing

the retaining nut (12), care should be taken as the stationary seal face

may still be installed.

- If required, extract the stationary face from the seal sleeve, exposing the

o-rings. Note that there is an anti-rotation device incorporated into the

rotorcase (not shown), when replacing the seal housing (67), alignment

between the seal sleeve and rotorcase must be achieved to prevent

rotation.

Note: Extreme care should be taken when carrying out these procedures

to ensure that the seal faces are not damaged. If seals are being refitted,

ensure that seal faces remain matched.

- Assembly is the reverse of the above procedure, ensure that all faces are

clean and free from damage.

WARNING