Contacts
United Kingdom
Germany
USA
Elster Jeavons
Elster GmbH
Elster American Meter
Paton Drive, Tollgate Business Park,
Steinern Str. 19 - 21
2221 Industrial Road
Beaconside, Stafford, Staffs. ST16 3EF
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]
M48HL1EN03
A22.12.2009
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Rebuilding procedure (continued):
12.
Insert the screws (25) through the secondary diaphragm assembly and gasket (7) and tighten.
13.
Place the diaphragm spacer (24) over the valve spindle (2), with the boss facing downward, fitting onto the
counterbore of the valve spacer (6) around the secondary diaphragm (27).
14.
Place the main diaphragm (9) with the convolution uppermost in position ensuring that the bead is located
in the groove in the body (3).
15.
Position the top diaphragm plate (23) and spring location washer (22) onto valve spindle (2), then screw nut
(12) onto spindle. DO NOT TIGHTEN.
16.
Remove the bottom plug (1).
17.
Restrain valve spindle (2) with a suitable box spanner and tighten nut (12).
18.
Place "O" ring seal (31) into "O" ring seal groove in bottom plug (1).
19.
Replace bottom plug (1) over centre shaft of valve spindle (2) into body (3) and screw tightly into position.
20.
Carefully place top cover (14) onto body (3) with vent facing the outlet (unless alternative position required)
and secure with top cover screws (10).
21.
Insert loading spring (13) over spring location washer (22).
NOTE: If adjusting bush assembly (45) has been dismantled follow procedure, if it has been left assembled then
proceed to instruction number 26.
22.
Slide "O" ring seal (15) over slotted end of spring adjusting screw (46) into second groove. (i.e. groove nearest
thread).
23.
Replace washer (44) over slotted end of spring adjusting screw (46) and slide down until it sits on shoulder of
adjusting screw.
24.
Slide "O" ring seal (18) into "O" ring groove on adjusting bush (45).
25.
Push spring adjusting screw (46) into hole in the bottom of the adjusting bush (45) until parts are firmly
together.
26.
Position key hole slot in locking lever (17) over slotted end of spring adjusting screw (46) and slide over
slopping peg in adjusting bush (45) until firmly locked in position.
27.
Screw top spring holder (43) anticlockwise to within 10mm of underside of adjusting bush (45).
28.
Position underside of top spring holder (43) on to loading spring (13).
29.
Align slots in top spring holder (43) with splines in top cover (14) and push adjusting bush (45) assembly into
top cover (14) as far as possible.
30.
Turn adjusting bush assembly (19) clockwise until locking lever (17) snaps into any of the three locking
castellations in top cover (14).
31.
Commission regulator.
32.
Replace top cap (16) 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.
J48HL: Maintenance Instructions