Mistblowing; Cleaning The Air Filter - Stihl SR 420 Instruction Manual

12 Mistblowing

1
► The gasket (1) in the cap must always be
lubricated with grease.
► Fit the cap and tighten it down firmly.
12 Mistblowing
► Stop cock must be fully open while mistblow‐
ing – do not vary the flow rate with the stop
cock.
Different baffle screens enable the shape of the
spray jet to be varied.
12.1 Conical Screen
Spray solution is finely atomized – short, broad
and dense spray mist.
12.2 Deflector Screen
Diverts spray jet at an angle – for under-leaf
treatment of low-growing crops.
0458-372-0121-C
12.3 Dual Deflector Screen
Splits the spray jet in two – allows two closely
planted rows to be treated in one pass.

13 Cleaning the Air Filter

13.1 If there is a noticeable loss of
engine power
1
1
► Turn the choke knob to g.
► Take out the screw (1) and remove the filter
cover (2).
English
2
17