99SR 430, SR 450
: Press in the buttons (arrows).
: Pull off the nozzle (1).
: Pull off the metering knob (1).
– Inspect the nozzle (1) and
metering knob (2) and replace if
necessary
– Reassemble in the reverse
sequence.
0002RA408 TG
1
1
0002RA409 TG0002RA410 TG
1
2
Version with pressure pump
The supplied metering knobs with
metering ranges of 0.50–0.80 and
1.0–2.3 must be used in machines
with a pressure pump.
: Pull off the metering knob (1).
– Inspect the nozzle (1), metering
knob (2) and sealing ring (3) and
replace if necessary.
– Reassemble in the reverse
sequence.
1
0002RA411 TG0002RA412 TG
1
2
3
10.9.2 Valve
: Use a screwdriver to ease the
hose clamps (arrows) open.
– Pull off the hoses (1).
– Remove the throttle trigger and
interlock lever, b 8.3
– Remove the valve lever, b 8.4
– Hold the valve (1) in the handle
housing.
: Rotate the rod (2) and pull it out of
the piston (arrow).
0002RA413 TG
1
1
0002RA414 TG
1
2