START-UP AND OPERATION INSTRUCTIONS
BIG 38/48
5.3. MAINTENANCE OF THE SUCTION MOTOR
The suction motor (figure 5.1) must be checked and cleaned. Every six months the brushes must be checked
and replaced, if necessary. Maintenance of the suction motor requires the following operations:
after removing the key from the dashboard, raise the protective cover (detail 1);
remove the suction hose (detail 2);
unscrew the knobs (detail 3) and remove the plate (detail 4) connecting the motors to the machine;
free the sponge filters beneath the motors in order to remove, wash and replace them;
check the suction fan from the hole in the front of the suction motor;
to check the brushes, first remove the plastic sleeve and then loosen the screws and remove the
two plastic brush supports;
follow the reverse procedure for reinstallion.
Once the protective cover is raised, the recovery tank inspection cap (detail 5 figure 5.1) can be accessed,
which is useful whenever thorough cleaning of the recovery tank is deemed necessary.
FIGURE 5.1
1
2
3
4
5