Nilfisk-Advance BA 450 Service Manual

Also see for BA 450: Use and maintenance manual

Contents

SERVICE MANUALRECOVERY SYSTEMGB08812876(1)2002-01 73SUCTION MOTOR BRUSH/CARBON BRUSH CHECK AND REPLACEMENT1. Drive the machine on a level ground.2. Turn the switch key (2) to OFF position.3. If there is recovery water in the tank (11) remove it through the pipe (25).4. If there is detergent in the tank (14) remove it through the pipe (26).5. Remove the key (28) from its housing and remove the tank assembly fastening screw (29).6. To operate on the suction motor (15) carefully lift the tank assembly (27) by means of the maneuver handle(30).7. Disconnect the battery (22) negative cable (-).8. Remove the cover (A) (that is pressurized) from the suction motor (B).9. Remove the brushes (C).10. Check if the brushes are worn. The brushes are worn when there is not sufficient contact with the motorarmature, because of their use, of the contact surface which is not integral or because the thrust spring isbroken, etc.11. If necessary, remove the brushes to replace them, by disengaging the lead-in wires (D). It is advisable toreplace all the brushes at the same time.12. Install in the reverse order of removal.Figure 6S300182