4
IOM-A-Deringer 40/40X/50/50X_6-8
2005
EDP#2916006
© 2020 Watts
Removing Access Port Cover Plate
C
D
1. Using a
15
/
16
" socket wrench loosen all eight bolts
on the access port cover plate (A).
2. Remove bolts and tapered washers (B) and store in
a safe place. Be careful not to lose tapered washers
as the access cover will not seal properly without
the tapered washers.
3. Remove access port cover plate (C). Do not remove
access port O-ring (D).
A
B
Removing the First Dual-action
TM
Check Module
FLOW
C
A
1. Use a
15
/
16
" socket wrench to loosen the check
retainer bolts on both sides of the valve body (A).
Do not completely remove check retainer bolts from
valve body. Loosen the bolts until the ends of the
bolts are flush with the inner wall of the valve body
(B).
2. Insert a flathead screwdriver between the inner valve
body and the first check module flange (C), gently
push the first check module in the downstream
direction until the first check module can easily be
removed from the access port by hand.
B
Removing the Second Dual-action Check Module
1. Use a 1
1
/
8
" socket wrench to loosen the check retainer
bolts on each side of the valve body (A). Do not
completely remove check retainer bolts from valve
body. Loosen the bolts until the ends of the bolts are
flush with the inner wall of the valve body (B).
2. Insert a flathead screwdriver between the inner valve
body and the second check module flange (C),
gently push the second check module in the
upstream direction until the second check module
can easily be removed from the access port by hand.
FLOW
C
B
A
