Stihl TS 420 User Manual

11TS 410, TS 420
4.3 Rewind starter
Problem Cause Remedy
Starter rope broken Rope pulled out too vigorously as
far as stop or over edge, i.e. not
vertically
Replace starter rope
Normal wear Replace starter rope
Starter rope does not rewind Very dirty or corroded Clean or replace rewind spring
Spring insufficiently tensioned Check rewind spring and increase
tension
Rewind spring broken Replace rewind spring
Starter rope cannot be pulled out
far enough
Rewind spring overtensioned Check rewind spring and reduce
tension
Starter rope can be pulled out
almost without resistance
(crankshaft does not turn)
Guide peg on pawls or pawls
themselves are worn
Replace pawls
Spring clip fatigued Replace spring clip
Loose starter cup Tighten starter cup, replace if
necessary
Starter rope is difficult to pull or
rewinds very slowly
Starter mechanism is very dirty Thoroughly clean complete starter
mechanism
Lubricating oil on rewind spring
becomes viscous at very low
outside temperatures (spring
windings stick together)
Coat rewind spring with a little
standard solvent-based degreasant
(containing no chlorinated or
halogenated hydrocarbons), then
pull rope carefully several times
until normal action is restored

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