Still 6219, Original Instructions Manual

Page: 19 / 540

Brake system
The brake system of the truck is comprised of
three different brakes:
●
Service brake
●
Regenerative brake
●
Mechanically actuated parking brake
●
Electrically actuated parking brake (variant)
The service brake is based on a wear-free, oil-
immersed multi-disc brake. This multi-disc
brake is used as the service brake for heavy
braking or emergency braking with the brake
pedal. In the normal working mode, the regen-
erative brake of the electric traction motors
takes effect. The regenerative brake converts
the acceleration energy of the truck into elec-
trical energy. This causes the truck to deceler-
ate as soon as the accelerator pedal is re-
leased. If the foot is completely removed from
the accelerator pedal, the truck brakes until it
comes to a standstill. A parking brake ensures
that the truck remains securely in place when
parked.
Hydraulic system
The steering system, the lift cylinders and the
tilt cylinders in the lift mast are supplied with
power via a hydraulic pump operated by an
electric motor.
The proportional valve technology provides
particularly sensitive movements and safe
handling of the load. The hydraulic functions
can be parameterised individually by the au-
thorised service centre.
Up to three hydraulic circuits can be used to
activate attachments (variant). Depending on
the equipment, a hydraulic accumulator is also
available in the lifting circuit for the purpose of
damping pressure peaks in the hydraulic sys-
tem.
Drive
Both front wheels of the STILL RX20 14-20
are driven by a maintenance-free three-phase
drive in the front axle with 48-volt technology.
Power is supplied by a lead-acid battery that
can be replaced from the side.
Foreword
1
Your truck
3 56368011531 EN - 01/2021 - 05