Doc. No. ZQ-OM01301-A
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8.4 How to replace the vacuum pressure switch
1) Remove the V port fitting fixing clip, loosen the mounting screws (2pcs.) of the vacuum pressure
switch, and then remove the vacuum pressure switch.
2) Replace the vacuum pressure switch and assemble it by using the mounting screws (2pcs.).
(Recommended tightening torque: 0.11 to 0.13Nm
）
3) Assemble the V port fitting fixing clip.
8.5 How to replace the check valve
1)Remove the pressure switch and filter assembly as described in "8.4 How to replace the
vacuum pressure switch" (There is no one-touch fitting fixing clip for the filter assembly.).
2) Replace the check valve that is built into the pressure switch or filter assembly.
3) Assemble the pressure switch and filter assembly as described in "8.4 How to replace the
vacuum pressure switch".
Clip
Assembly screws
(2 pcs.)
Vacuum pressure switch
Check valve
The pressure switch meets the surface of the
check valve assembly part where the overhang
amount is larger.
Check valve
assembly part
Check valve surface
