Stihl Sr 420 - Cleaning the Air Filter

26
English / USA
SR 340, SR 420
Dual deflector baffle screen
Splits the spray jet in two – allows two
closely planted rows to be treated
simultaneously.
Dirty air filters reduce engine power
increase fuel consumption and make
starting more difficult.
If there is a noticeable loss of engine
power
: Turn choke knob to g
: Release the screws (1) and pull
off the filter cover (2).
: Remove the main filter (3) from the
cover and inspect it –
if it is dirty or damaged, fit a new
one.
: Always install a new prefilter when
you change the main filter.
: Take the prefilter (4) out of the filter
cover.
: If the prefilter is wet, dry it – then
knock it out on the palm of your
hand or blow out with compressed
air.
: Always replace a damaged prefilter.
372BA008 KN
Cleaning the Air Filter
1
373BA017 KN
2
1
373BA018 KN
3
4
5