Stihl TS 420 User Manual

88 TS 410, TS 420
– Examine the throttle shaft (1) and
torsion spring (2), replace if
necessary.
– Note the installed position (arrow)
of the torsion spring.
: Remove the cap (1).
: Remove the pump piston (2) with
sealing ring and spring (1).
– Check the various parts and
replace if necessary.
– Reassemble parts in reverse
order.
2
1
370RA387 TG
370RA391 TG
1
370RA118 TG
1
2
: Slide the throttle shaft (1) into the
carburetor housing with the
torsion spring from the side with
the adjusting screws.
: Lay the torsion spring on the
shoulder (arrow) of the
carburetor housing.
: Press the piston of the
accelerator pump into the hole
(arrow) with a suitable tool and
push the throttle shaft through
further.
370RA388 TG
1
370RA389 TG370RA390 TG
: Fit the sealing ring (1), ring (2)
and sleeve (3).
: Lay the pre-tensioned leg of the
torsion spring (1) against the
sleeve (arrow).
: Slide the lever (1) into the hole
(arrow) in the throttle shutter
shaft.
– Insert and tighten down the
screw.
370RA216 TG
3 2 1
370RA395 TG
1
370RA396 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