Replacing The Actuator; Replacing The Seat And Plug; Replacing The Actuator's Operating Diaphragm - Samson 42-37 Mounting And Operating Instructions

9.3.1

Replacing the actuator

Î See Fig. 9-1 to Fig. 9-3
Removing the actuator
1. Put the regulator out of operation (see
the 'Decommissioning' section).
2. Unscrew the control line (18 to 20).
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 (18 to 20).
Observe the specified tightening torques
(see 'Tightening torques' in Annex).
3. Put the regulator back into operation (see
the 'Start-up' section).
EB 3017 EN
9.3.2 Replacing the seat and
plug
To replace seat and plug, contact
SAMSON's After-sales Service.
Further information is available in Annex
('After-sales service').
9.3.3 Replacing the actuator's
operating diaphragm
To replace the operating diaphragm, contact
SAMSON's After-sales Service.
Further information is available in Annex
('After-sales service').
Servicing
9-7