8
Perform regular checks to find cracks, flaws or other deterioration on the resin bowl. Replace with a new
bowl if any damage is found. Check for dirt in the resin bowl periodically. If necessary, wash the bowl with
a neutral detergent. Replace with a new bowl if contamination is excessive.
Replace the element(s) every two years, or if pressure drop from initial outlet pressure reaches 0.1 MPa,
or the element is broken.
Maintenance
Ensure the pressure is OFF and downstream
exhausted before any maintenance is attempted.
Stage 1 filter (A-9768-4353 full-size air filter assembly only)
1.
Release the bowl assembly by unscrewing it anticlockwise to detach it from the product. If
the bowl assembly is too tight to be removed, use a hook spanner until it can be loosened
by hand.
2.
Detach the element assembly by grasping the outer edge between the two snap fits of the
deflector and pulling up.
3.
Detach the element by rotating the baffle in the direction of the arrow.
Stage 2 / 3 filters
Stage 1 filter
(A-9768-4353 only)
Pressure drop from
initial setting ≥ 1 bar
(0.1 MPa)
Reverse process to reassemble
1.
Attach the element to the deflector and rotate 90° clockwise to fix into position.
2.
With the element assembly attached to the case assembly, attach the snap fit of the
deflector to the bowl assembly until a ‘pop’ is heard.
3.
Rotate the bowl assembly clockwise to secure it to the product. Tighten by hand to a
tightening torque of 2.2 N.m.
CAUTION:
Always use neutral detergent. Other washing material can cause damage to the bowl.
Dimensions and tolerances in mm
Dimensions and tolerances in mm
Element assembly
Deflector
Snap fit
(two places)
Pull up
Baffle
Element
Bowl assembly
