THULE 309968 Single Step 12 V 460 and 550 ALU Instructions

THULE 309968 Single Step 12 V 460 and 550 ALU

INSTALLATION OF THE STEP

These installation instructions are suggestions only. Because of the many different coach types, the installation requirements will vary (see fig. 2):

• right through the vehicle bottom,

• in rails incorporated in the bottom,

• on a special construction welded or bolted to the chassis.

  • Extend the step by connecting 12V DC to the motor of the step. Keep the purple wire against the positive pole and the orange one against the negative pole.

  • Cut off the connection when the step is fully extended. DO NOT KEEP THE MOTOR UNDER TENSION FOR LONGER THAN 2 OR 3 SECONDS.

  • Drill 4 holes diam. 9 mm according to the coordinates shown In fig.1 and lbis. Keep in mind that when retracted, the step is 40 mm out of the frame.
    

  • Install the step.

  • Check the operation of the step: keep the purple wire against the negative pole and the orange one against the positive pole of the battery: the Thule Step retracts. Change the polarity (keep the purple wire against the positive pole and the orange one against the negative pole): the Thule Step extends.

INSTALLATION OF THE SWITCH SI (fig.3)

• Install the switch near to the door.
• Drill a diam. 48 mm hole in the wall.
• Mount the covering plate with 4 screws DIN 7981- 2,9 x 9,5.
• Place an electric cable 2 x 2,5 mm2 from the battery to the switch via a 20A fuse in the + Conduction. In order to avoid short-circuit, wait before introducing the fuse until the electric connection is completed.
• Pass the motor wires of the Thule Step to the switch.
• Provide the wires for the switch with flat connector s 4,8 F.
• Make the electric connection as shown in figure 2.
• Introduce the fuse into the fuse holder and try operating it.

CONNECTION OFA WARNING LAMP

A Switch (S2), which is pushed when the step is retracted, is incorporated in the step motor. A warning light (L) can be connected to this SWitch. Therefore current is taken

• a) from the clamp of the electric accessories (position 1) of the key contact or
• b) from the relay which IS activated by starting the engine. Connect the wire to a clamp that becomes positive.
  • Connect this clamp over the warning light to the grey switch wire.
  • Connect the brown switch wire to the negative pole of the battery. Make sure to use the same battery as where the positive Current comes from.

INSTALLATION OF THE SWITCH SI WITH AUXILIARY RELAY FOR AUTOMATIC RETRACTION AT START (fig. 4)

• The installation of the relay prevents the operation of the step whilst driving so that the installation meets the EMC standards 89/336/EEC.
• Install the switch as described abOve.
• Fix the relay.
• Provide the wires for the relay with flat connectors 6,5 F.
• Make the electric connection as shown in rigure 5.
• Put an electrolytic capacitor 2200 microFarad 16 VDC onto the relais coil. Ihis capacitor makes the step retract further, after the current has been disconnected by the Thule Step switch. In this way, the step is retracted untill its endstop.

OPERATION

• The Ihule step is operated by the lever SWitch.
• IMPORTANT: When extending the step, hold the switch until the step is completely extended. NEVER MOUNT THE STEP I RETRACTED OF IF NOT FULLY EXIENDED, because then the blocCking is not working and the motor can be damaged.
• Check if the step Is retracted before departure.

MAINTENANCE

Dirt and frost can prevent the step from operating properly. In this case the moving parts should be cleaned or defrosted. All points of movement are layered in maintenance-free bearings.

• IN CASE QF ELECIRICAL FAILURE: If the step does not retract by motor: Loosen the square connection according to fig. 5 (actions 1, 2 and 3), push the footboard in (4) and tie it to the frame.
• CURRENI DRAWN: 5 A. When fully extended or retracted: 14-18 A

OPTIONS

• ELECIRONIC COntrol box: ElectroniC Control for activating the step by door. When opening or closing the door, the step is extended or retracts.
• Relay for automatic retraction when starting. The installation of this relay is necessary to meet the EMC standards 89/336/EEC.
• Relay is necessary to meet the EMC standards 89/336/EEC.

References

• Thule | United States

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