HP-
100
/
120
REPLACING THE CHAMBER BLOCK
HP
R
e
p
lacin
g
th
e
Ch
a
m
b
e
r
Bl
o
c
k
S
S
T
T
E
E
P
P
8
8
Fit a new diaphragm and diaphragm ring in the
diaphragm base.
●Be
sure not to leave a gap between them.
S
S
T
T
E
E
P
P
9
9
REPLACING THE VALVE
In
case of replacing the whole diaphragm casing
block, move straight to
STEP 12
.
Separate casing A and casing B.
Remove the valves from the casing B.
●If
it is difficult to separate them, insert the tip of a
flatblade screwdriver into the clearance.
●Pull
out the valves as they can be removed easily.
S
S
T
T
E
E
P
P
1
1
0
0
Insert
each new valve into the center hold of valve
seat, and secure them by pulling with radio pliers.
●When
reinstalling the valves, make sure the exhaust
and intake sides are correctly fitted.
S
S
T
T
E
E
P
P
1
1
1
1
Cut away end of respective valves pulling parts
(just in front of thick parts) by scissors or nippers.
4
