Nilfisk-Advance America SR 5120 P/B - Manual (Page 17)

S31NUK5120(3)2001-04 MAIN BRUSH REPLACEMENT
Warning: the following operations must be done
with the machine in Off condition and master key
out.
This machine is equipped with an automatic
control of the main brush pressure; this also
means that the position of the main brush is
automatically adjusted (no need of manual
adjustment).
The complete wear out of the main brush - and
therefore the need to replace it - is notified with
code 800 on the display.
Please meet the following procedure for the main
brush replacement.
Open the side door on the right side of the
machine, unscrewing the knob shown in the
figure.
Remove the three knobs used to fix the lid of the
main brush compartment.
Remove the lid.
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