Contacts
United Kingdom
Germany
USA
Elster Jeavons
Elster GmbH
Elster American Meter
Tollgate Business Park, Beaconside
Steinern Str. 19 - 21
2221 Industrial Road
Stafford, Staffordshire ST16 3HS
55252 Mainz-Kastel
Nebraska City, NE 68410-6889
T +44 1785 275200
T +49 6134 605 0
T +1 402 873 8200
F +44 1785 275305
F +49 6134 605 223
F +1 402 873 7616
www.elster-instromet.com www.elster-instromet.com
www.elster-meterservices.com
[email protected] [email protected]
M120EN02
A09.02.2009
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Rebuilding procedure continued:
2.
Screw amal jet (19) into body (2) (if it has been removed).
3.
Screw spindle bush assembly (21) into body (2), or plug (34) if automatic reset.
4.
Assemble valve disc (31) onto valve spacer (5) with bead uppermost.
5.
Locate through top of body (2), valve spacer assembly (5) onto valve seat.
6.
Place secondary diaphragm (30) with convolution uppermost onto body (2). Ensure screw holes and impulse tube
holes are aligned correctly.
7.
Secure secondary diaphragm (30) in position using screws (29).
8.
Place diaphragm spacer (6) on secondary diaphragm (30) ensuring diaphragm bead is located correctly in the groove.
9.
Place main diaphragm (7) with convolution uppermost, ensuring that the bead is located in the groove in body (2).
10.
Locate top diaphragm plate (28) ensuring raised edge is uppermost.
11.
Insert the valve spindle (27) through the centre hole in top diaphragm plate (28), main diaphragm (7) and diaphragm
spacer (6).
12.
Locate valve disc clamping washer (4) onto valve spindle (27) through bottom plug opening, with flat side first.
13.
Screw valve spindle guide (3) onto threaded end of valve spindle (27) through bottom plug opening.
14.
Restrain valve spindle guide (3) with suitable box spanner and tighten valve spindle (27).
15.
Place "O" ring seal (32) into "O" ring seal groove in bottom plug (1).
16.
Replace bottom plug (1) complete with "O" ring, over centre shaft of valve spindle guide (3) into body (2) and screw
tightly in position.
17.
Carefully replace top cover (10) on to body (2) with vent facing the outlet and secure with top cover screws (8).
18.
Insert loading spring (25) over spring location ridge in top diaphragm plate (28).
19.
NOTE: If adjusting bush assembly (37) has been dismantled follow procedure, if it has been left assembled then
proceed to instruction number 24.
20.
Slide "O" ring seal (16) over slotted end of spring adjusting screw (38) into second groove. (i.e. groove nearest thread).
21.
Replace washer (36) over slotted end of spring adjusting screw (38) and slide down until it sits on shoulder of adjusting
screw.
22.
Slide "O" ring seal (14) into "O" ring groove on adjusting bush (37).
23.
Push spring adjusting screw (38) into hole in bottom of adjusting bush (37) until parts are firmly together.
24.
Position key hole slot in locking lever (13) over slotted end of spring adjusting screw (38) and slide over slopping peg in
adjusting bush (37) until firmly locked in position.
25.
Screw top spring holder (35) anti-clockwise to within 10mm of underside of adjusting bush (37).
26.
Position underside of top spring holder (35) on to loading spring (25).
27.
Align slots in top spring holder (35) with splines in top cover (10) and push adjusting bush (37) assembly into top cover
(10) as far as possible.
28.
Turn adjusting bush assembly (37) clockwise until locking lever (13) snaps into any of the three locking castellations in
top cover (10).
29.
Replace top cap (12) by aligning slot in cap with sealing wire lug and push over until it clicks into position, and seal if
necessary.
Elster Jeavons is committed to a programme of continuous quality enhancement. All equipment designed by Elster Jeavons
and manufactured within the Elster-Instromet Group benefits from the groups quality assurance standards, which are
approved to EN ISO9001:2008.
Elster Jeavons has a programme of continuous product development and improvement and in consequence the
information in this leaflet may be subject to change or modification without notice.
J120: Maintenance Instructions
