Nilfisk SC800 ST User Manual

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

Form Number 56043150 Page 60

Maintenance and Adjustments

Battery Maintenance and Recharging

See Instrucons for Use Manual





Possible Causes:

• Incorrect low-voltage cutout seng

• Baeries not fully charged.

o If there is any queson whether the baeries are fully charged, they should be charged for at least 16

hours.

• One or more weak baeries

o To determine if one of the baeries is weak, measure the voltage across each individual baery while

operang the machine. Write down the values and compare them. A baery that has a dead cell will

typically be 1 – 2 volts lower than the others.

o Use a baery load tester to test each baery.

o For wet baeries, a hydrometer can be used to check the specic gravity of the electrolyte in each cell. A

dead cell is one that reads 50 points or more lower than the other cells.

• Baery cable connecons



Possible Causes:

• Baery Charger

• Wiring/Connecons

• Baeries

Note: The oponal S.P.E. on-board baery charger will charge, even if it cannot communicate with the Main Machine

Controller.

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Nilfisk SC800 ST Heavy-Duty Cleaning