Service and maintenance
146 Cab
Cab air precleaner (optional equipment)
Change the system's filter every 1000 hours.
Cleaning cab air precleaner
1 Loosen the worm clamp (B) that holds the filter casing (D).
2 Loosen the clamps (C) that hold the filter casing in place and
move the filter casing away from the precleaner (A).
3 Remove the filter casing from the air cleaner and leave the pipe
for the outlet on the filter casing in place.
4 Remove the rain cap (E) and blow away any dirt with
compressed air.
5 Blow out through the two ejector ports (G) and inside the
precleaner. Make sure that dirt has not collected in the
precleaner.
6 Check that the fan inside the precleaner rotates by looking
straight into the inlet when the fan motor is running. The fan
blades shall rotate counter-clockwise.
7 Loosen the worm clamp that holds the pipe (F) for the outlet on
the filter casing and remove the pipe from the air filter.
8 Install the pipe in the new filter casing and reinstall the worm
clamp.
IMPORTANT! Make sure that no dirt gets in to the pipe. Also
make sure that the outside of the pipe, to be inserted in the
air filter, is kept clean.
9 Reinstall the filter casing in reverse order. If you detect that
there is some system malfunction, contact a workshop
authorised by Volvo CE.
WARNING!
Always use safety glasses and suitable clothing when
using compressed air.
1020090
A
C
B
D
A Precleaner
B Worm clamp
CClamps
D Filter casing
1020091
E
F
G
E Rain cap on inlet
F Outlet to evaporator housing
G Ejector ports
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