NaceCare Solutions ST765 - Manual (Page 7)

MACHINE PREPARATION
• With the base raised thread the brushes into the seat on the plate below
the base, turning them until the three lugs enter the holes on the plate.
Turn them abruptly to push the lugs towards the retaining spring so that
the brush locks in place. The photo shows the direction of rotation for
installing the right brush. Rotate the opposite direction to install the left
brush.
We recommend inverting right and left brushes every day. If the brushes are
not new and have distorted bristles then it is best to install them always in
the same position (the right brush on the right side and the left brush on the
left side) to prevent bristles with a different slope from overloading the
brush motor and causing excess vibrations.
RECOVERY TANK
Open hood (I) and block it in its high position with support (2)
Check:
- That cover (3) is properly inserted in its seat with the two anchors (4)
closed
- That plug (51 is properly anchored (it must not pull out when it is lifted,
otherwise turn it clockwise);
- That vacuum hose (6) is inserted in its seat.
SOLUTION TANK
Fill the solution tank with clean water at a temperature not in excess of 50C
Add liquid detergent in the amounts and using the procedures recommended
by the detergent manufacturer. Use only a minimal percentage of detergent
to prevent formation of an excess quantity of foam since too much foam
may damage the vacuum motor. NOTE: Always use low-foam detergent
Introduce a small amount of anti-foam detergent in the recovery tank before
starting to work to be sure to prevent foam from bang generated never use
pure acids.