Stihl TS 420 User Manual

90 TS 410, TS 420
Low speed adjustment screw
: Take out the low speed screw (1).
: Examine the tip (arrow) for signs
of damage or wear. Fit a new low
speed adjusting screw L if
necessary.
– Turn the low speed adjusting
screw L in as far as possible.
– Continue with the high speed
adjusting screw.
370RA399 TG
1
533RA367 TG
High speed adjustment screw
: Prise the limiter cap (1) off the
high speed screw with tool
5910 890 4501.
Always fit a new limiter cap.
: Take out the high speed
screw (1).
: Examine the setting cone (1) for
signs of damage or wear. Fit a
new high speed adjusting screw if
necessary.
370RA400 TG
1
370RA401 TG
1
533RA370 TG
– Turn the high speed adjusting
screw H in as far as possible.
– Make the basic setting,
b 12.4.1.
12.4 Carburetor adjustment
12.4.1 Basic setting
Only necessary if the high speed
screw H or low speed screw L has
to be replaced or for cleaning and
setting the carburetor.
– Remove the limiter cap from the
high speed screw, b 12.3.8.
The basic setting must be made
after removing the limiter cap.

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