8-3. Square Embedded Type Pressure Gauge Replacement
Applicable
model
Work
category
Tool
Criteria
1
）
Remove the pressure gauge cover.
Rotate the pressure gauge cover 15
degrees in the arrow direction
(counterclockwise) and pull it out.
－
－
2
）
Remove the pressure gauge.
Remove the 2 mounting screws and
remove the pressure gauge.
Phillips
screwdriver
－
3
）
Confirm that the O-ring is mounted onto
the pressure gauge.
When the O-ring comes out or is left on the
regulator, mount the O-ring to the pressure
gauge correctly.
－
Presence of the O-ring
4
）
Mount the pressure gauge.
Mount the pressure gauge to the regulator
with the mounting screws and tighten the
screws referring to the tightening torque
specified in the right column.
Phillips
screwdriver
Tightening torque:
0.85+/-0.05 N m
5
）
Mount the pressure gauge cover.
Set the pressure gauge cover with its arrow
on the lower right corner. Mate the 2
fingers of the pressure gauge cover with
the 2 finger slits of the pressure gauge,
and rotate the pressure gauge cover 15
degrees to the opposite direction of the
arrow (clockwise).
－
－
Procedure
AR20S
AR30S
AR40S
AR50S
Disassembly
Assembly
(2) Pressure gauge
cover assembly
(2) Pressure gauge
cover assembly
Mounting screws
(2 pcs.)
Pressure gauge
(1) Square embedded type
pressure gauge
O-ring
Product
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