Nilfisk-ALTO FLOORTEC R 870 Service Manual page 108

Service Manual – Floortec R 870
Engine Air Filter Cleaning Check
Warning! Running the engine without air
filters, or with damaged filters,
can cause a faster engine
wearing.
1 Drive the machine on a level ground and engage
the parking brake
2 Turn the ignition key to "0"
3 Open the engine compartment hood with the
handle and fasten it with the support rod
4 Lift and disassemble the right side bulkhead
5 Remove the wing nut (A) and remove the cover
(B)
6 Remove the wing nut (C) and disassemble the
filter element.
7 Separate the foam filter (D) from the paper filter
(E)
8 Check both filters and replace them if necessary.
Replace the paper filter (D) when required (see
the scheduled maintenance table)
9 To use again the filters, clean them as shown
below:
• Paper filter (E): Hit the filter several times
against a hard surface to remove the dust, or
blow compressed air (no more than 207 kPa
(2.1 kgf/cm)) from inside the filter. Do not use
a brush, otherwise the fibre will be damaged.
• Foam filter (D): Clean with warm water
and soap, rinse and let it dry completely, or
clean with a non-flammable solvent and let it
dry. Soak the filter in clean engine oil, then
squeeze it to remove the surplus oil
10 Clean with a wet cloth the base (F) and the cover
(B) of the air filter. Pay attention to avoid that
dirt enters the air duct (G) to the carburettor
11 Assemble the foam filter (D) on the paper filter
(E), then assemble the filter element. Ensure
that the gasket (H) is properly placed under the
filter element. Screw down the filter element
wing nut (C)
12 Install the cover (B) and screw down the wing
nut (A)
13 Perform steps 4 and 3 in the reverse order
H
Engine System - LPG
108
A
B
C
E
D
G
F
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