Doc. No. ZQ-OM01301-A
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8. Maintenance
Perform the following checks and maintenance in order to use the vacuum unit safely and in an
appropriate way.
8.1 How to replace the Silencer
Single unit type
1) Loosen the mounting screws (2 pcs) of the silencer plates to remove the silencer plates (2 pcs.)
and the sound absorbing material.
2) Replace the silencer plates (2 pcs.) and the sound absorbing material.
3) Assemble the silencer plates with the mounting screws. (Recommended tightening torque:
0.028 to 0.032 Nm)
* Resin tapping screws are used to assemble the silencer plates.
When replacing the sound absorbing material, replace the silencer plates at the same time.
Using a higher torque than necessary for assembly may damage the screw part.
Manifold type
1) Loosen the mounting screws (2 pcs.) of the silencer block to remove it.
2) Replace the sound absorbing material in the silencer block.
3) Assemble the silencer block with the mounting screws. (Recommended tightening torque: 0.25
to 0.31 Nm)
sound absorbing material
(Pay attention to the
assembly direction)
Assembly screws
(2 pcs.)
Sound absorbing material
Assembly screws
(2 pcs.)
Silencer block