Brake system – 3000

9.2 Maintenance

Basically the brake is maintenance free in normal work environments. However it is recommended according to the preventive maintenance schedule to check the brake disc for wear.

9.2.1 Exchange of brake disc

The brake disc shall be exchanged when its total thickness has been reduced to 5,5 mm.

•Disconnect the electrical wires of the brake.

•Undo and remove the three fastening bolts.

•Loosen the brake disc from the hub and check for wear and tear. Replace the brake disc if the surface is unevenly worn.

•Reassemble the brake.

•Reconnect the electrical wiring.

Steering – 4000

10.2.1 Dismantling/Assembling

•Dismantle cover (2), (keyboard option).

•Remove the screws (35), hold top cover firm (7).

•Disconnect the cable connected to the electronic circuit board (4).

•Remove the screws (34).

•Carefully lift off the lower cover (33), and place a finger between the lower cover (33) and button (30) to hold the button (30) in place. Assembling is carried out in the reverse order.

NOTE!

Static electricity! Risk of static discharge that can damage the electronics. Make sure to take the necessary precautions before working with the electronics.

Changing of signal button/switch (9, 10)

•Dismantle the button as per the diagram.

•Disconnect the connection for the switch on the electronic circuit board (4).

•Press out the switch from its mounting. Assembling is carried out in the reverse order.

Steering – 4000

Changing of lift/lowering button (13)

•Remove the button by placing a screwdriver in the hole (A) as per the diagram below.

•Unscrew the holder (18) so that the arm (12) comes loose. Assembling is carried out in the reverse order.

Changing of pushbutton (16)

•Press the button by hand sideways.

•Place a screwdriver as per the diagram and carefully pry the button loose.

•Unscrew the button’s holder and arm. Assembling is carried out in the reverse order.

11- Electrical systems – 5000

11.1 General

The electrical system of the truck is based on the PowerDrive platform.

•The main power source comprises 2 series connected 12V DC traction batteries.

•The traction drive motor is a separate excitation type (SEM). The travel drive motor is operated by an enclosed transistor regulator relying on pulse width modulation (PWM) technology. The transistor regulator also controls the input and output signals for truck travel and lifting operations.

•The lift unit motor is a conventional DC motor without any external field winding connections. Switch-on of the hydraulic unit's electric motor is achieved using a contactor.

•All electric units communicate via a CAN bus with an IC card in the steering unit handle. This card contains a processor and software that controls and monitors truck functions. A set of parameters used to adjust truck functions and characteristics is stored in the card. The card also monitors error conditions that may occur.