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REPLACEMENT OF PARTS - Page 14
S crews - 3 Off
MS99006A
Fig. 26
MY99018A
Fig. 27
3
5
1
4
Fig. 28
S crews - 2 Off
P ressure
R elief
V alve
Brass Washer
'O' R ing
2
6
e.
Remove 2 screws above the chassis base securing the
governor to the automatic valve.
f.
Remove 3 screws above the chassis base securing the
governor to the chassis base.
g.
Carefully withdraw the governor complete with pressure
relief valve, TAKE CARE NOT TO BEND THE PUSH
ROD. IF THE ROD IS BENT, A NEW ONE MUST BE
FITTED.
h.
Remove the push rod.
i.
Remove 6 screws and separate the two halves of the
water governor.
DESCALE AND REGREASE
j.
Remove both the brass washer and 'O' ring from the
top opening. Clean the washer.
k.
Clean the top opening then pack with a silicone grease
such as Dow Corning 111.
Fit a new 'O' ring and re-fit the brass washer.
I.
Hold the thrust plate, remove the fixing nut and lift out
the diaphragm assembly. Clean or renew as required.
On re-assembly, tighten the fixing nut finger tight plus a
¼ turn only.
m.
Check and if necessary replace the transfer port 'O'
ring.
n.
Ensure the diaphragm assembly is correctly seated
then re-assemble the two halves of the governor. Insert
the 6 screws and secure finger tight. Fully tighten all 6
screws in the order shown.
o.
Clean, regrease and re-fit the push rod or replace with
a new one.
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