Technical Description; Drive; Steering; Hydraulic System - Linde E 20-02 Operating Instructions Manual

Technical description

The 336 series electric fork trucks are designed for handling
loads up to 2.0 tons with the E 20, up to 2.5 tons with the E 25,
and up to 3.0 tons with the E 30 with a load centre of 500 mm.
The electric fork trucks E 20/600, E 25/600 and E 30/600 are
designed for handling loads of 2.0 tons with the E 20/600, 2.5
tons with the E 25/600 and 3.0 tons with the E 30/600 with a
load centre of 600 mm.
The closed chassis, the driver's workstation designed accord-
ing to state-of-the-art human engineering concepts and the
energy-saving digital controller (LDC) make this truck a valu-
able tool. The truck is of compact design, has good visibility,
and maximum load and curve stability due to its long
wheelbase.
The combined articulating axle allows the steer axle to swing
within a wide range, affords good ground contact and safe
handling when working inside and outside the plant and on
poor roadways.
The fork truck has an electric travel drive, a hydraulic pump
motor unit for the power steering and working hydraulics.

Drive

The truck has a twin-motor wheel drive with automatic curve
control. The motors are integrated in a compact axle and drive
the right and left drive wheel via a reduction gearbox for each
wheel.
The required energy is supplied by the battery installed in the
machine.
The digital controller provides stepless forward and reverse
travel with the double accelerator pedals.

Steering

The kickback-free, smooth and nearly playfree truck manual
steering via the small steering wheel operates the steering
cylinder of the hydrostatic power steering.
The combined axle ensures on-the-spot steering and a high
degree of safety in curves.

Hydraulic system

The hydraulic system consists of an electric motor and hy-
draulic pump for the power steering and for the mast lift and
tilt cylinders, a hydraulic oil tank with a breather filter and
dipstick and a suction filter.
DANGER
It is forbidden to connect any safety-critical
functions to a third auxiliary hydraulics possibly
installed.
Safety-critical functions are, for example, a ball clamp or
slewing a fluid container, which can entail the inadvertent
opening of the clamp or slewing.
If a safety-critical auxiliary function is required in
conjunction with a third auxiliary hydraulics, this function
must be connected via the first auxiliary hydraulics.

Operation

The traction motors are controlled by a separate accelerator
pedal for forward and reverse travel. Infinitely variable control
is possible in both directions from truck standstill to maximum
speed. Both hands are always free for steering and for
controlling the work operations. The result is fast reversing
and fatigue-free stacking. Only one control lever (joystick) is
provided for the control of the lift, lower and tilt functions.
Additional control levers (joystick) are fitted for attachments.

Brakes

In addition to electrical braking, the fork truck can also be
braked mechanically with two external shoe brakes by de-
pressing the STOP pedal. When the accelerator pedal is
released, the Linde Brake Control (LBC) brakes the truck
electrically. If desired, the LBC can be deactivated with the
diagnostic unit.
CAUTION
After having suppressed the electric brake con-
trol (LBC) a label with the information "Without
electric brake control" must be placed so that the driver
can see it well. Contact your Linde distributor.
As standard equipment, this truck model is provided with an
energy recovery system. When braking, or the driving direction
changes, the resulting generator energy is used to charge the
battery.

Handbrake

The handbrake acts on the disc brakes fitted at both traction
motors via a cable. When the handbrake is applied, the
traction current is reduced by an electric switch.

Brush monitor

For the service life of the DC motors, it is important to replace
worn carbon brushes in time.
The replacement of the brushes is indicated optically by the
illumination of a warning lamp in the composite instrument.

Electrical system

The electrical system is located and is well protected by the
counterweight. The required energy is supplied by the 80 V
battery mounted in the chassis. The tiltable overhead guard
allows fast and easy replacement of the battery.
Description
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