PT 3 / PT 3A / PT 3H Maintenance
wc_tx001776gb.fm 39
5.7 Air Cleaner (Hatz)
See Graphic: wc_gr000027
The filter cartridge should always be replaced after 500 operating
hours at the latest.
5.7.1 Remove the air cleaner cover (a).
5.7.2 Unscrew and remove knurled nut (b) and take off air cleaner element
(c).
5.7.3 Clean the filter compartment and the cover. Dirt and other foreign
debris must not be allowed to enter the engine's air inlet points.
The filter cartridge should either be replaced or, depending upon the
degree of contamination, cleaned or checked, as follows:
Dry Contamination:
• Use compressed air to blow through the filter cartridge from the inside
outwards, until no further dirt emerges.
NOTICE: The air pressure must not exceed 73 psi (5 bar).
Moist or Oily Contamination:
• Replace the filter cartridge.
Checking the Filter Cartridge:
• Check filter cartridge's gasket surface (d) for damage.
• Check the filter cartridge for cracks or any other type of damage to the
paper filter by holding it inclined towards the light or by shining a light
source through it.
NOTICE: If there is the slightest damage to the paper filter, do not re-
use.
• Re-assemble the filter cartridge in reverse order.
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