Jungheinrich ESE 420, Operating Instructions Manual

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B 3
11
08
.G
B
2.1 Truck
Safety mechanisms: Enclosed, smooth truck geometry. The wheels (12/13) are
surrounded by a solid ram protection skirting. This protects the load in the event of a
collision. The key switch (4) or isolator (emergency disconnect) (5) disconnects all
electrical function in hazardous situations. Travelling is inhibited if the driver door is
not closed.
Structure: The pallet truck is four-wheel, with a steered drive wheel (12) and a castor
wheel (13). Easy opening door attachment with integrated fittings, drive compartment
cover plus detachable panels provide easy access to all units for the service
engineers. The controls are ergonomically arranged.
Drive: The complete drive unit is enclosed in the vehicle chassis. A 6 kW fixed AC
motor powers the drive wheel (12) via a bevel spur gearbox
The electronic traction current controllers provide infinitely variable traction motor
speed and as a result smooth, constant start-up, powerful acceleration and
electrically controlled braking with energy recovery.
The degree of energy recovery can be adjusted via the LISA.
Steering: Bevel gear steering with steering drive and fully electronic controller as
standard. The pivoting gear unit can move 90° in either direction.
Controls and Displays: Controls and displays are clearly arranged in the driver’s
cab. The hydraulic control button (2) enables one-handed operation of the travel
direction, lift/lower and horn functions. It is also used in conjunction with the
accelerator for diagonal travel. The driver’s display (1) with a large LCD screen plus
integrated hourmeter and battery discharge indicator with lift cutout.
Hydraulic system: Lifting and lowering are activated via the hydraulic control button.
When lifting is activated, the pump unit starts to operate, supplying hydraulic oil from
the oil reservoir to the lift cylinder.
Electrical System: 48 volt system acting as a two wire network. An infinitely variable
electronic traction current controller and an electric steering controller are standard.
Brake system: The electric brake system consists of independent brake systems.
Applying the brake pedal results in inversion braking (plugging) in the traction motor.
The parking brake is electrically operated and acts mechanically (compression
spring) on a magnet brake mounted on the drive unit. This brake is also used for
emergency braking. A warning light appears when the brake is applied. Steering and
braking faults are shown on the driver’s display.
B 3
11
08
.G
B
2.1 Truck
Safety mechanisms: Enclosed, smooth truck geometry. The wheels (12/13) are
surrounded by a solid ram protection skirting. This protects the load in the event of a
collision. The key switch (4) or isolator (emergency disconnect) (5) disconnects all
electrical function in hazardous situations. Travelling is inhibited if the driver door is
not closed.
Structure: The pallet truck is four-wheel, with a steered drive wheel (12) and a castor
wheel (13). Easy opening door attachment with integrated fittings, drive compartment
cover plus detachable panels provide easy access to all units for the service
engineers. The controls are ergonomically arranged.
Drive: The complete drive unit is enclosed in the vehicle chassis. A 6 kW fixed AC
motor powers the drive wheel (12) via a bevel spur gearbox
The electronic traction current controllers provide infinitely variable traction motor
speed and as a result smooth, constant start-up, powerful acceleration and
electrically controlled braking with energy recovery.
The degree of energy recovery can be adjusted via the LISA.
Steering: Bevel gear steering with steering drive and fully electronic controller as
standard. The pivoting gear unit can move 90° in either direction.
Controls and Displays: Controls and displays are clearly arranged in the driver’s
cab. The hydraulic control button (2) enables one-handed operation of the travel
direction, lift/lower and horn functions. It is also used in conjunction with the
accelerator for diagonal travel. The driver’s display (1) with a large LCD screen plus
integrated hourmeter and battery discharge indicator with lift cutout.
Hydraulic system: Lifting and lowering are activated via the hydraulic control button.
When lifting is activated, the pump unit starts to operate, supplying hydraulic oil from
the oil reservoir to the lift cylinder.
Electrical System: 48 volt system acting as a two wire network. An infinitely variable
electronic traction current controller and an electric steering controller are standard.
Brake system: The electric brake system consists of independent brake systems.
Applying the brake pedal results in inversion braking (plugging) in the traction motor.
The parking brake is electrically operated and acts mechanically (compression
spring) on a magnet brake mounted on the drive unit. This brake is also used for
emergency braking. A warning light appears when the brake is applied. Steering and
braking faults are shown on the driver’s display.