SERVICE MANUAL
909 6424 000(1)2005-11 1
GENERAL INFORMATION .................................................................................................................................. 3
CONVENTIONS ............................................................................................................................................... 3
MACHINE LIFTING ............................................................................................................... ........................... 3
MACHINE TRANSPORTATION ...................................................................................................................... 3
OTHER MANUALS AVAILABLE FOR BR 601 - BR 651 - BR 751 – BR 751C ............................................... 3
SAFETY ................................................................................................................................................................ 4
GENERAL SAFETY PRECAUTIONS .............................................................................................................. 4
TECHNICAL DATA ................................................................................................................ ............................... 6
MAINTENANCE .................................................................................................................................................... 8
SCHEDULED MAINTENANCE ............................................................................................................................. 8
SCHEDULED MAINTENANCE TABLE ........................................................................................................... 8
MACHINE NOMENCLATURE .............................................................................................................................. 9
SOLUTION SUPPLY SYSTEM .......................................................................................................................... 14
SOLUTION/WASHING WATER SYSTEM AND TANK CLEANING ................................................................... 14
SOLUTION/WASHING WATER FILTER CLEANING .........................................................................................14
DISASSEMBLY/REASSEMBLY OF SOLENOID VALVE / TAP / SOLUTION/WASHING
WATER FLOW SYSTEM ............................................................................................................. ....................... 15
TROUBLESHOOTING ........................................................................................................................................ 17
SMALL AMOUNT OF SOLUTION OR NO SOLUTION REACHES THE BRUSHES .................................... 17
THE SOLUTION REACHES THE BRUSHES ALSO WHEN THE MACHINE IS OFF .................................. 17
DETERGENT WITH CLEAN WATER MIXING SYSTEM (optional) ................................................................. 18
DETERGENT TANK CLEANING ....................................................................................................... ................. 18
DETERGENT PUMP AND ONE-WAY VALVE DISASSEMBLY/REASSEMBLY ............................................... 19
CLEAN WATER PUMP DISASSEMBLY/REASSEMBLY ................................................................................... 20
DETERGENT SUPPLY SYSTEM DISCHARGE ................................................................................................. 21
TROUBLESHOOTING ........................................................................................................................................ 22
SMALL AMOUNT OF DETERGENT OR NO DETERGENT REACHES THE BRUSHES ............................ 22
THE DETERGENT REACHES THE BRUSHES ALSO WHEN THE MACHINE IS OFF ............................... 22
WATER IN THE DETERGENT TANK ........................................................................................................... 22
SWEEPING SYSTEM ............................................................................................................... .......................... 23
BRUSH/CYLINDRICAL BRUSH CLEANING .............................................................................................. ........ 23
SIDE SKIRT CHECK (AND REPLACEMENT) ............................................................................................ ........ 23
DISASSEMBLY/REASSEMBLY OF THE BRUSH/PAD-HOLDER DECK OR CYLINDRICAL
BRUSH-HOLDER DECK .................................................................................................................................... 24
BRUSH MOTORS ELECTRICAL INPUT CHECK .............................................................................................. 25
BRUSH MOTOR CARBON BRUSH CHECK AND REPLACEMENT ................................................................. 27
DISASSEMBLY/REASSEMBLY OF THE BRUSH MOTORS OF THE BRUSH/PAD-HOLDERS DECK ........... 28
DISASSEMBLY/REASSEMBLY OF THE BRUSH MOTORS OF THE CYLINDRICAL
BRUSH-HOLDER DECK .................................................................................................................................... 29
CHECK/REPLACEMENT/TENSION OF THE DRIVING BELTS FROM MOTORS TO
CYLINDRICAL BRUSHES .................................................................................................................................. 31
DISASSEMBLY/REASSEMBLY OF THE BRUSH DECK LIFTING/LOWERING ELECTRICAL ACTUATOR ... 33
TROUBLESHOOTING ........................................................................................................................................ 35
OPEN CIRCUIT ............................................................................................................................................. 35
BOTH BRUSHES DO NOT ROTATE ............................................................................................................ 35
ONE BRUSH DOES NOT ROTATE .............................................................................................................. 35
THE BRUSHES DO NOT REACH ONE (OR MORE) OF THE FOLLOWING POSITIONS
CORRECTLY: "UP" - "DOWN" - "EXTRA PRESSURE" ................................................................................ 35
THE MACHINE DOES NOT COLLECT THE WASHING SOLUTION COMPLETELY .................................. 35
RECOVERY WATER TANK AND VACUUM GRID WITH FLOAT CLEANING .................................................. 36
VACUUM MOTOR ELECTRICAL INPUT CHECK .............................................................................................. 37
VACUUM MOTOR CARBON BRUSH CHECK AND REPLACEMENT .............................................................. 38
VACUUM MOTOR DISASSEMBLY/REASSEMBLY .......................................................................................... 39
SQUEEGEE CLEANING/CHECK AND POSSIBLE BLADE REPLACEMENT ................................................... 40