Stihl TS 420 Instruction Manual

TS 410, TS 420
English
23
This machine is equipped with an
automatic spring-action V
-
belt
tensioning device.
Prior to tensioning of the ribbed v-belt,
the nuts(1) must be loosened and the
arrow on the tensioning nut(2) must
point to 0.
N otherwise loosen the nuts(1) and
the tensioning nut(2) with the
combination wrench
counterclockwise –
approx.1/4turn, as far as
possible=0
N to tighten the ribbed v-belt, fit the
combination wrench over the
tensioning nut as illustrated
WARNING
The tensioning nut is spring-loaded –
hold the combination wrench securely.
N Turn the tensioning nut clockwise
approx.1/8turn – the tensioning nut
will be engaged by the spring
N Continue turning approx.1/8turn –
up to the stop
NOTICE
Do not turn the combination wrench
further by force.
The ribbed V
-
belt is automatically
tensioned by the force of the spring in
this position.
N Remove the combination wrench
from the tensioning nut
N Tighten up the nuts(1)
Retensioning the ribbed V
-
belt
The V
-
belt is retensioned without the aid
of the tensioning nut.
N Undo the nuts(1)
The V
-
belt is automatically tensioned by
the force of the spring.
N Tighten up the nuts(1) again
The engine must be switched off for
fitting or replacement – set slide control
to STOPor0.
Blocking the shaft
N Slide the locking pin(1) through the
bore in the V
-
belt guard
N Turn the shaft with the combination
wrench until the locking pin(1)
engages in the bore behind the
guard
Tensioning the ribbed V
-
belt
1
1
1
2
370BA037 KN
0
1
1
1
370BA012 KN
1
1
1
370BA013 KN
Mounting an Abrasive Wheel
370BA014 KN
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