OM 28Z3 US – Edition 2.0 * 28Z3b520.fm 5-13
Maintenance
☞ Clean the parts with a clean, lint-free cloth.
☞ Do not use compressed air.
☞ Check the air filter cartridges for damage.
☞ Install only a new or undamaged, serviceable primary filter element.
☞ Carefully insert the new primary filter B in the upper housing section F.
☞ Position lower housing section E (make sure it is properly seated).
☞ Install the filter end housing E with the dust ejector valve G aimed downwards.
☞ To complete the installation, align the notches in the end and body housing and rotate
the end housing clockwise until the joint is tightly seated.
• Replace secondary filter C as follows:
☞ Stop the engine.
☞ Remove the key and carry it with you.
☞ Let the engine cool down.
☞ Open the engine cover.
☞ Remove dirt and dust from the air filter and the area around the air filter.
☞ Turn the lower housing section E to the left.
☞ Remove lower housing section.E
☞ Carefully remove outside filter B with slightly turning movements.
☞ Remove the primary filter to access the secondary filter. Use the previous instructions
for removing the primary filter (Fig. 121 and Fig. 122).
☞ Carefully remove secondary filter C.
☞ Cover the air supply at the end of the filter with a clean lint-free cloth to prevent dust
from entering the engine.
☞ Make sure all dirt (dust) inside the upper and lower housing sections (F and E), includ-
ing dust ejection valve G, has been removed.
☞ Clean the parts with a clean lint-free cloth.
☞ Do not use compressed air.
☞ Remove the cloth from the air supply.
☞ Check the air filter cartridges for damage.
☞ Install only a new or undamaged, serviceable secondary filter element.
☞ Carefully insert the new secondary filter C in the upper housing section F.
☞ Carefully insert the primary filter B in the upper housing section F.
☞ Position lower housing section E (make sure it is properly seated).
☞ Install the filter end housing E with the dust ejector valve aimed downwards.
☞ To complete the installation, align the notches in the end and body housing and rotate
the end housing clockwise until the joint is tightly seated.
Important!
Make sure the dust valve G (Fig. 111) is aimed downward after installation.
B
Fig. 122: Removing the filter element
Fig. 123: Replacing the inside filter
F
C
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