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5.4.4.2
Recommendation
– New elements must be inspected for tears or
punctures before installation.
– Discard the filter element (4) when damaged.
– In heavy duty applications it is recommended to
install a safety cartridge which can be ordered
with part no.: 2914 9307 00.
– A dirty safety cartridge (3) is an indication of a
malfunctioning air filter element (4). Replace the
element and the safety cartridge in this case.
– The safety cartridge (3) cannot be cleaned.
5.4.4.3
Cleaning the dust trap
To remove dust from the dust trap (2), clean it with a
dry rag.
5.4.4.4
Replacing the air filter element
– Release the snap clips (1) and remove the dust trap
(2). Clean the trap.
– Remove the element (4) from the housing (5).
– Reassemble in reverse order of dismantling.
– Inspect and tighten all air intake connections.
– Reset the vacuum indicator.
5.4.5
Replacing fuel filter
The engines of the QES units are equipped with a
primary fuel filter (1) and a secondary fuel filter (2).
Both fuel filters are to be replaced simultaneously at
a 500 hours interval, as indicated in the “Maintenance
schedule”.
7
Air filter contamination indicator
8
Reset button
9
Yellow indicator
8
7
9
Fluid escaping under pressure can
penetrate the skin causing serious
injury. Therefore:
– Relieve pressure before
disconnecting fuel or other lines.
– Tighten all connections before
applying pressure.
– Keep hands and body away from
pinholes and nozzles which eject
fluids under high pressure.
– Use a piece of cardboard or paper
to search for leaks, do not use
your hand.
(1)
(2)
!
