Use and Care Manual
17
CS-501P
RUNNING
• Whenenginestarts,keepidlingforafew 
minutes. 
• Setthebrakeleverintheunlockedposition 
before starting to cut. 
• Pullthrottletriggergraduallyandincrease 
revolution of the engine. 
• Thechainstartsrunningwhentheengine
reaches 3900 r/min approximately. 
• Conrmproperaccelerationandlubricationof
chain and bar. 
• Donotruntheengineathighspeed 
unnecessarily. 
• Besurethatsawchainstopsmovingwhen 
throttle trigger is released. 
STOPPING
• Releasethrottletriggerandmoveignitionswitch
down to “O” position. 
NOTICE
If engine does not stop, pull choke control knob 
out fully to stop engine. 
Return the unit to your authorized ECHO dealer 
to check and repair stop switch before starting 
the engine again. 
CHECKING CHAIN TENSION
• Chaintensionshouldbecheckedfrequently 
during work and corrected as necessary. 
• Tensionthechainastightaspossible,butsoit
can still be pulled easily along the bar by hand. 
 CAUTION
Do not operate with a loose chain. 
CHAIN LUBRICATION TEST
Hold the chain just above a dry surface and open 
the throttle to half speed for 30 seconds. 
A thin line of “thrown” oil should be seen on the 
dry surface. 
Ignition switch
Throttle trigger
Unlock chain brake










