Stihl TS 420 User Manual

75TS 410, TS 420
: Take out the throttle trigger (1)
and torsion spring (2).
– Check the various parts and
replace if necessary.
: Hook the torsion spring (1) into
the throttle trigger (2).
– Note the installed position
(arrow).
: Guide the throttle trigger (1) past
the switch shaft (arrow) and place
it in the shroud with the torsion
spring.
370RA306 TG
1
2
370RA307 TG
1
2
370RA308 TG
1
: Insert the drift in the hole (arrow)
to secure the throttle trigger with
torsion spring.
: Fit the pin (1) and drive it in until
it is at the same distance on both
sides.
: Press the trigger interlock (1) into
the bearing points (arrows) until it
clicks into place.
370RA309 TG
1
370RA310 TG
1
: Hook the torsion spring (1) into
the trigger interlock (arrow).
– Install the handle molding,
b 11.1.1.
– Check correct functioning: when
in "START" position, the switch
shaft engages and slightly lifts
the throttle trigger; the throttle
trigger is blocked if the trigger
interlock is not actuated.
– Tightening torques, b 3.5.
370RA311 TG
1

Stihl TS 420 Specifications

General

Engine Power	4.4 bhp
Weight	21.2 lbs
Arbor Size	20 mm
Maximum Wheel Size	350 mm
Maximum Cutting Depth	125 mm
Displacement	66.7 cc (4.1 cu. in.)
Fuel Capacity	710 cc