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WARNING
Before removing a regulator from the system for
service, you must
•
depressurize system
•
purge the system to remove any residual
system media left in the regulator
.
Disassembly
1.
Place the regulator in a vise.
2.
Turn the
handle
counterclockwise until it stops.
Note: If using an antitamper nut, remove it from the body.
Then turn the stem counter clockwise until it stops.
3.
Loosen the
cap ring
.
4. Remove the
cap assembly
and handle as one piece and set
aside for later use.
Note: The
range spring
and the
lower spring button
may
fall from the
cap assembly
when lifted. Set aside for
later use.
5. Remove the
piston assembly
from the
body
.
6. Push the
piston
out of the
piston guide
.
7. Remove the
body seal,
the
piston seal retainer
, and the
piston seal and spring
from the
piston guide
. Set the
piston guide aside for later use.
NOTICE
Do not damage the piston guide sealing surfaces.
Leakage could result.
8. Use the
seat retainer spanner
to loosen the
seat
assembly
. Discard the
seat retainer,
the
seat
, the
poppet
, the
spring retainer
, the
poppet spring
and the
poppet seal retainer.
Cap ring
Handle
Large cap ring
spanner
4
Piston assembly
Body
Cap assembly
Range spring
Lower spring
button
Piston
Piston guide
Piston guide
Piston seal and spring
Piston seal retainer
Body seal
Seat retainer spanner
Seat retainer
Seat
Body
Poppet
Spring retainer
Poppet spring
Poppet seal retainer