User Manual

9
．
．．
．
REPLACEMENT PROCEDURE
！
！ ！
！
WARNING
Before replacement, ensure that the regulator is not pressurized.
Rotate the pressure adjusting handle to zero.
Replace refering to 「10．DISASSEMBLY DRAWING」 （P25 to P29）.
After replacement, ensure that specified function is satisfied and external leakage is not found before starting operation.
１）
１）１）
１）
Bowl assembly/element
Applicable model
Process
Disassembly
１）
Remove the bowl assembly
２）
Remove the baffle element
Rotate the baffle by hand and counterclockwise
to remove the baffle and element.
Assembly ３）
Mount the element.
Mount the element to the valve guide.
４）
Mount the baffle.
５）
Mount the bolw assembly.
Disassembly １）
Remove the bowl assembly
２）
Remove the baffle element
Rotate the baffle by hand and counterclockwise
to remove the baffle and element.
－
－
－
Push the bowl assembly lock button. Lifting the
bowl assembly, rotate the assembly 30° (right or
left) to pull out the assembly.
－
－
－
Procedure
Tools
Check item
－
Hold the bowl assembly by hand and rotate
couterclockwise to remove the bowl assembly. If
the bowl assembly is tightened too much to be
removed, use hook spanner until it can be loosened
by hand.
SMC's special
spanner P/N:
1129129
(Recommended)
－
Refential tightening
torque： 2.2 N・ｍ
－
AW20K-B
－
－
Insert the baffle so that concave on the valve guide
could meet T convex on the baffle. And rotate it
clockwise manually until feeling snap fit (approx.
110°) to fix to the element.
Hold the bowl assembly by hand and rotate
clockwise. Do not use tool for mounting because
the bowl may be damaged. See check item for
referential tightening torque.
－
to remove the baffle and element.
Assembly ３）
Mount the element.
Mount the element to the valve guide.
４）
Mount the baffle.
５）
Mount the bolw assembly.
２
２２
２
)
Diaphragm assembly
Applicable model
Process
Disassembly １）
Remove the bonnet
２）
Assembly ３）
４）
Mount the bonnet to the body
Tightening torque
AW20K-B 2.15±0.3N・m
AW30K-B 2.35±0.3N・m
AW40K-B 3.5±0.3N・m
AW60K-B 4.5±1.0N・m
AW20K-B
AW30K-B
AW40K-B
AW60K-B
Mount parts to the body in order of the diaphragm
assembly, pressure adjusting spring, and pressure
adjusting screw.
Direction of pressure
adjusting screw
assembly and diaphragm
assembly
－
Mount the bonnet to the body, and settle it roughly
with four(4) set screws with a cross pointed driver.
Then, Tighten screws diagonally with the tightening
torque in the check item to settle.
Rotate the set screw counterclockwise with cross
pointed driver to remove the bonnet from the body.
Cross
pointed
driver
－
Cross
pointed
driver
Remove parts in order of the pressure adjusting
screw assembly, pressure adjusting spring, and the
diaphragm assembly.
－ －
Tool
Check item
Please be noted that the diaphragm assembly
adheres to the bonnet if disassemble parts with the
handle facing downwards.
－
Match the mating mark of the body and the bowl
assembly to insert the assembly to the body. Rotate
the assembly 30 ° (right or left) until the lock button
is tossed up to mount the bowl assembly. Ensure
the lock button is up.
－
Procedure
Insert the baffle so that concave on the valve guide
could meet T convex on the baffle. And rotate it
clockwise manually until feeling snap fit (approx.
110°) to fix to the element.
Lock button is up.
－
－
Direction of baffle.
(For element convex
side.)
AW30K-B
AW40K-B
AW60K-B
21