10-5. Check Valve Assembly Replacement
Applicable
model
Work
category
Tool
Criteria
1)
Remove the check valve cover.
Remove the 2 mounting screws and the check
valve cover.
Phillips
screwdriver
－
2)
Remove the check valve assembly.
Remove the check valve assembly by pulling it
toward the operator.
3)
Confirm that the O-ring is mounted onto the
check valve assembly.
When the O-ring comes out or is left on the
regulator, mount the O-ring to the check valve
assembly correctly.
-
Presence of the O-ring
4)
Mount the check valve cover.
Mount the check valve cover to the product with
the mounting screws and tighten the screws
referring to the tightening torque specified in the
right column.
Phillips
screwdriver
Tightening torque:
0.6+/-0.05 N m
Note) Applicable to the product with backflow function.
-20-
Procedure
AR20K
AR30K
AR40K
AR50K
AR60K
Assembly
Disassembly
O-ring
（
2 pcs.)
Mounting screws
(2 pcs.)
Check valve assembly
Check valve cover
(13) Check valve assembly
Product
