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8-2. Valve Guide Assembly and Valve Assembly Replacement
Applicable
model
Work
category
Tool
Criteria
1
)
Remove the cap.
Insert a precision screwdriver (-)
between the body and cap to lift the
cap.
Precision
screwdriver (-)
-
2
)
Remove the cover.
Insert round pliers into the small
holes of the cover and rotate 45
degree to the left or right, then lift the
cover to remove.
Round pliers
Nominal: 125
-
3
)
Remove the valve guide assembly.
Remove it while lifting the
circumferential part with a precision
screwdriver.
Precision
screwdriver (-)
-
4
)
Remove the valve spring.
-
-
5
)
Remove the valve assembly.
-
-
Assembly
6
)
After replacing the removed
components with new components,
place them into the regulator.
Assemble the components in
reverse order to the removal
procedure.
-
(See below for the mounting
direction of the components.)
Procedure
AR20S
AR30S
AR40S
AR50S
Disassembly
I N
OU
T
AR40S/AR50S
Round pliers inlet
(4 holes)
Precision screwdriver (-)
inlet
Cap
Cap
Cover
(5) Valve guide assembly
Valve spring
(3) Valve assembly
Mount the cover so
that the protruded
part faces towards
the cap
Product
(Valve seat)
(3)
Valve assembly (upside down)
(Check valve seal)
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