Nilfisk SC800 ST User Manual

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Service Manual: SC750, SC800, SC 750 ST, SC800 ST

Form Number 56043150 Page 44

11. Reassemble in reverse order, taking care not to damage the printed circuit ribbons used to connect the circuit

board to the control switch interface panel. If you did not drain the soluon tank earlier, you must do so before

connecng the pressure sensor hose in order for the soluon level “gauge” to work properly.

Main Machine Controller SC750 and SC800 Models (Later build)

Note: Electronic devices like the Main Machine Controller are sensive to Electrostac Discharge (ESD). Before handling

the controller, touch a metal bench or shelf to discharge any electrical charge that may have built up in your body. Do not

walk around with a controller in your hands.

Summary: Remove the electrical panel cover as an assembly and place on a bench. Then remove the main machine con-

troller from the cover. Do not remove the control switch interface panel before the cover is removed from the machine.

1. Completely drain soluon tank. This is important for the soluon level sensor to work properly upon reassembly.

2. Turn o and remove key.

3. Remove top two handle bolts and loosen the lower two. Rotate Handle Assembly down.

4. Disconnect handle wiring lead (Note photo is of early build).

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Nilfisk SC800 ST Heavy-Duty Cleaning