Service Work; Replacing The Actuator - Samson 42-36 Mounting And Operating Instructions

Flow regulator self-operated regulators

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Servicing

9.3 Service work

Î Before performing any service work,

preparations must be made to the regu-

lator (see section 9.1).

Î After all service work is completed, check

the regulator before start-up (see the

'Testing the regulator' section).

9-6

9.3.1

Î See Fig. 9-2 and Fig. 9-1

Removing the actuator

1. Put the regulator out of operation (see

the 'Decommissioning' section).

2. Unscrew the control line (17).

3. Unscrew the coupling nut (11) of the dia-

phragm actuator from the valve. Remove

the actuator.

Mounting the actuator

1. Place the diaphragm actuator on the

valve and fasten tight the coupling nut

(11). Observe the specified tightening

torques (see 'Tightening torques' in An-

nex).

2. Screw on the control line (17). Observe

the specified tightening torques (see

'Tightening torques' in Annex).

3. Put the regulator back into operation (see

the 'Start-up' section).

EB 3015 EN

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