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55BR 340, BR 340 L, BR 420, BR 420 C
español / EE.UU
Durante el período de rodaje
Una máquina nueva no debe hacerse
funcionar a velocidad alta (aceleración
máxima sin carga) por el lapso que tome
llenar el tanque tres veces. Esto evita la
imposición de cargas innecesariamente
altas durante el período de rodaje.
Puesto que todas las piezas móviles
necesitan un período de rodaje, las
resistencias causadas por la fricción en
el motor son mayores durante este
período. El motor desarrolla su potencia
máxima después de haber llenado el
tanque de 5 a 15 veces.
Durante el funcionamiento
Después de un período largo de funcio-
namiento con el acelerador a fondo,
deje funcionar el motor por un rato en
ralentí de modo que el calor en el motor
sea disipado por la corriente de aire de
enfriamiento. Esto ayuda a evitar que
los componentes montados en el motor
(encendido, carburador) sufran sobre-
cargas térmicas.
Después de terminar el trabajo
Espere que el motor se enfríe. Vacíe el
tanque de combustible. Almacene la
máquina en un lugar seco. Revise el
apriete de las tuercas y tornillos (no los
tornillos de ajuste) periódicamente y
vuelva a apretar según sea necesario.
Los filtros de aire sucios reducen la
potencia del motor, aumentan el con-
sumo de combustible y dificultan el
arranque del motor.
Si se nota una pérdida considerable
de la potencia del motor
: Gire la perilla del estrangulador
a g
: Suelte los tornillos (1) y saque la
cubierta del filtro (2).
: Quite el filtro principal (3) de la
cubierta e inspecciónelo – si está
sucio o dañado, instale uno nuevo.
: Quite el prefiltro (4) de la cubierta
del filtro.
: Compruebe que el prefiltro esté
seco – golpéelo contra la palma de
la mano o use un chorro de aire
comprimido.
: Un prefiltro dañado siempre debe
sustituirse.
Nota:
Siempre instale un prefiltro nuevo
cuando se cambie el filtro principal.
Instrucciones de manejo Limpieza del filtro de aire
1
373BA017 KN
2
1
373BA018 KN
3
4
5
56


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  • My Stihl BR420/420C has after 15 years developed a gasoline leak. I fill tank with gasoline. Next day it’s empty. I removed tank, cleaned it up and inflated the tank with air compressor. Tank holds air without air leaks. Cleaned fuel lines. So no broken areas.
    Can someone advise me on where to look and what to replace? Submitted on 1-12-2021 at 02:11

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Others manual(s) of Stihl BR420

Stihl BR420 User Manual - German - 36 pages

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