Question #91
When pressure rises, excess oil is discharged:
W przypadku wzrostu ciśnienia nadmiar oleju odprowadzany jest:
a
back to the oil reservoir
z powrotem do zbiornika oleju
Correct answer
b
outside the forklift truck
na zewnątrz wózka
c
to another section of the directional control valve
do innej sekcji rozdzielacza
d
to the hydraulic cylinder
do siłownika
Why?
When its opening pressure is reached, the pressure relief valve (zawór przelewowy) returns excess oil to the reservoir (zbiornik oleju). The oil stays in the system and can supply the pump again. Oil escaping outside the truck is a leak, not normal operation of the protective device.