ESI-6136 © Copyright 09/2018 MOGAS Industries, Inc.
www.mogas.com
17
01B
01G
01G
01C
16A
01C
01B
08
REMOVE STEM BUSHING AND BEARING
Remove any remaining debris around stem bushing
area to prevent damage to stem packing area.
Remove stem bushing
16A
.
Remove stem thrust bearing
08
.
Inspect for any excessive wear or damage, and replace
if needed. If parts are reusable, clean for later reuse.
7
8
REMOVE SPRINGS AND SEAT RINGS
Note:
Depending on the severity of coke buildup, the springs
may possibly be removed using an S-hook rod. For heavier
coke buildup, a spring removal tool may be required to remove
springs. It is recommended that spring and seat removal only
be performed by authorized MOGAS service personnel. Contact
MOGAS to learn more.
Secure an S-hook rod behind the spring
01C
. Attach
to crane and lift spring straight up and out of body.
With spring removed, grab the seat ring
01B
by hand
(or use the S-hook rod if needed) and lift seat ring
straight up and out of body.
Repeat the spring and seat ring removal steps on
remaining ports.
With seat rings
01B
removed, inspect for excessive
wear or damage, and replace if needed. If seat rings
are reusable, clean for later reuse.
Remove old graphite rings
01G
and discard. Graphite
rings must be replaced at re-assembly.
Seat springs
01C
must be replaced at re-assembly.
Disassembly
NOTICE
Make sure bore of ball is aligned to spring
01C
of
selected port, and the S-hook rod is in contact with
only the spring, not seat
01B
.
