Nilfisk-Advance ecoflex BA 451 Service Manual
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Nilfisk-Advance ecoflex BA 451 Service Manual

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See also: User Manual
BA 451 / BA 451D / BA 531 / BA 531D
BA 551 / BA 551D / BA 551CD / BA 611D
CA 451 / CA 531 / CA 551
SERVICE MANUAL
909 6756 000
Edition 5 2010-03
Printed in Italy
setting standards

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Summary of Contents for Nilfisk-Advance ecoflex BA 451

  • Page 1 BA 451 / BA 451D / BA 531 / BA 531D BA 551 / BA 551D / BA 551CD / BA 611D CA 451 / CA 531 / CA 551 SERVICE MANUAL 909 6756 000 Edition 5 2010-03 Printed in Italy setting standards...

  • Page 3: Table Of Contents

    SERVICE MANUAL ENGLISH TABLE OF CONTENTS GENERAL INFORMATION ............................4 CONVENTIONS ..............................4 MACHINE LIFTING ..............................4 MACHINE TRANSPORTATION ..........................4 OTHER REFERENCE MANUALS ......................... 4 SAFETY ..................................5 SYMBOLS ................................5 GENERAL INSTRUCTIONS ..........................5 TECHNICAL DATA (For BA 451, BA 451D, BA 531, BA 531D) ................8 TECHNICAL DATA (For CA 451, CA 531) ......................
  • Page 4 ENGLISH SERVICE MANUAL BRUSHING SYSTEM ..............................44 BRUSH/PAD CLEANING ............................. 44 BRUSH/PAD-HOLDER/CYLINDRICAL BRUSH DECK DISASSEMBLY/ASSEMBLY (For BA 451, BA 451D, BA 531, BA 531D) ......................45 BRUSH/PAD-HOLDER/CYLINDRICAL BRUSH DECK DISASSEMBLY/ASSEMBLY (For BA 551, BA 551D, BA 551CD, BA 611D) ...................... 46 BRUSH/PAD-HOLDER DECK DISASSEMBLY/ASSEMBLY (For CA 451, CA 531, CA 551) ......
  • Page 5 SERVICE MANUAL ENGLISH OTHER SYSTEMS ..............................94 SCREW AND NUT TIGHTENING CHECK (All models) ..................94 ELECTRICAL SYSTEM ............................95 MACHINE WORKING HOUR CHECK (For BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D, BA 551CD, BA 611D, equipped with optional hour counter) ........... 95 MACHINE WORKING HOUR CHECK (For CA 451, CA 531, CA 551, equipped with optional hour counter) ........................

  • Page 6: General Information

    ENGLISH SERVICE MANUAL GENERAL INFORMATION GENERAL INFORMATION CONVENTIONS Forward, backward, front, rear, left or right are intended with reference to the operator’s position, that is to say in driving position with the hands on the handlebar. MACHINE LIFTING WARNING! Do not work under the lifted machine without supporting it with safety stands. MACHINE TRANSPORTATION WARNING! Before transporting the machine, make sure that:...

  • Page 7: Safety

    SERVICE MANUAL ENGLISH GENERAL INFORMATION SAFETY The following symbols indicate potentially dangerous situations. Always read this information carefully and take all necessary precautions to safeguard people and property. SYMBOLS DANGER! It indicates a dangerous situation with risk of death for the operator. WARNING! It indicates a potential risk of injury for people or damage to objects.
  • Page 8 ENGLISH SERVICE MANUAL GENERAL INFORMATION WARNING! – To avoid any unauthorized use of the machine, remove the ignition key. – Do not leave the machine unattended without being sure that it cannot move independently. – Always protect the machine against the sun, rain and bad weather, both under operation and inactivity condition.
  • Page 9 SERVICE MANUAL ENGLISH GENERAL INFORMATION WARNING! (For BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D, BA 551CD, BA 611D) – Do not pull or carry the machine by the battery charger cable and never use the battery charger cable as a handle.

  • Page 10: Technical Data (For Ba 451, Ba 451D, Ba 531, Ba 531D)

    ENGLISH SERVICE MANUAL GENERAL INFORMATION TECHNICAL DATA (For BA 451 - BA 451D - BA 531 - BA 531D) BA 451 BA 451D BA 531 BA 531D (1 brush/pad- (1 brush/pad- (1 brush/pad- (1 brush/pad- Model holder, without holder, with drive holder, without holder, with drive drive system)

  • Page 11: Technical Data (For Ca 451, Ca 531)

    SERVICE MANUAL ENGLISH GENERAL INFORMATION TECHNICAL DATA (Per BA 551, BA 551D, BA 551CD, BA 611D) General technical data BA 551 BA 551D BA 551CD BA 611D (1 brush/pad- (1 brush/pad- (2 cylindrical (2 brushes/pad- Model holder, without holder, with drive brushes, with holders, with drive drive system)

  • Page 12: Technical Data (For Ba 551, Ba 551D, Ba 551Cd, Ba 611D)

    ENGLISH SERVICE MANUAL GENERAL INFORMATION TECHNICAL DATA (Per BA 551, BA 551D, BA 551CD, BA 611D) (continues) Technical data for machines with brush/pad-holder deck BA 551 BA 551D BA 611D Model (1 brush/pad-holder, (1 brush/pad-holder, with (2 brushes/pad-holders, without drive system) drive system) with drive system) Cleaning width...

  • Page 13: Technical Data (For Ca 551)

    SERVICE MANUAL ENGLISH GENERAL INFORMATION TECHNICAL DATA (Per CA 451, CA 531, CA 551) CA 451 CA 531 CA 551 Model (1 brush/pad-holder, (1 brush/pad-holder, (1 brush/pad-holder, without drive system) without drive system) without drive system) Power supply 230 V, 50-60 Hz Machine height 41.6 in (1,058.5 mm) 42,8 in (1.088 mm)

  • Page 14: Dimensions Ba 451 - Dimensions Ba 451D

    ENGLISH SERVICE MANUAL GENERAL INFORMATION DIMENSIONS BA 451 1190 mm (46.8 in) 760 mm (30.0 in) DIMENSIONS BA 451D 1190 mm (46.8 in) 760 mm (30.0 in) BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 15: Dimensions Ba 531 - Dimensions Ba 531D

    SERVICE MANUAL ENGLISH GENERAL INFORMATION DIMENSIONS BA 531 1228 mm (48.3 in) 760 mm (30.0 in) DIMENSIONS BA 531D 1228 mm (48.3 in) 760 mm (30.0 in) BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 16: Dimensions Ca 451 - Dimensions Ca 531

    ENGLISH SERVICE MANUAL GENERAL INFORMATION DIMENSIONS CA 451 1147 mm (45.1 in) 760 mm (30.0 in) P100200 DIMENSIONS CA 531 1185 mm (46.6 in) 760 mm (30.0 in) P100201 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 17: Dimensions Ba 551 - Dimensions Ba 551D

    SERVICE MANUAL ENGLISH GENERAL INFORMATION DIMENSIONS BA 551 1323 mm (52.1 in) 760 mm (30.0 in) P100202 DIMENSIONS BA 551D 1323 mm (52.1 in) 760 mm (30.0 in) P100202 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 18: Dimensions Ba 551Cd - Dimensions Ba 611D

    ENGLISH SERVICE MANUAL GENERAL INFORMATION DIMENSIONS BA 551CD 1253 mm (49.3 in) 760 mm (30.0 in) P100203 DIMENSIONS BA 611D 1311 mm (51.6 in) 810 mm (32 in) P100204 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 19: Dimensions Ca 551

    SERVICE MANUAL ENGLISH GENERAL INFORMATION DIMENSIONS CA 551 1306 mm (51.4 in) 760 mm (30.0 in) P100205 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 20: Maintenance

    ENGLISH SERVICE MANUAL GENERAL INFORMATION MAINTENANCE The lifespan of the machine and its maximum operating safety are ensured by correct and regular maintenance. WARNING! Read carefully the instructions in the Safety chapter before performing any maintenance procedure. The following tables provides the scheduled maintenance. The intervals shown may vary according to particular working conditions, which are to be defined by the person in charge of the maintenance.

  • Page 21: Machine Nomenclature (For Ba 451, Ba 451D, Ba 531, Ba 531D)

    SERVICE MANUAL ENGLISH GENERAL INFORMATION MACHINE NOMENCLATURE (For BA 451, BA 451D, BA 531, BA 531D) Throughout this Manual you will find numbers in brackets – for example: (2). These numbers refer to the components indicated in these two nomenclature pages. Refer to these pages whenever you need to identify a component mentioned in the text. Control panel Clean water filter (**) Handlebar...
  • Page 22 ENGLISH SERVICE MANUAL GENERAL INFORMATION MACHINE NOMENCLATURE (For BA 451, BA 451D, BA 531, BA 531D) (Continues) 39 34 51-54 S301514 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...
  • Page 23 SERVICE MANUAL ENGLISH GENERAL INFORMATION NOMENCLATURA DELLA MACCHINA (Per BA 451, BA 451D, BA 531, BA 531D) (Continua) 71 72 73 71 72 73 74 75 76 84 83 78 77 BA 451D / BA 531D BA 451 / BA 531 S301515 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756...

  • Page 24: Machine Nomenclature (For Ba 551, Ba 551D, Ba 551Cd, Ba 611D)

    ENGLISH SERVICE MANUAL GENERAL INFORMATION MACHINE NOMENCLATURE (For BA 551, BA 551D, BA 551CD, BA 611D) Throughout this Manual you will find numbers in brackets – for example: (2). These numbers refer to the components indicated in these two nomenclature pages. Refer to these pages whenever you need to identify a component mentioned in the text. Control panel Clean water filter (**) Handlebar...
  • Page 25 SERVICE MANUAL ENGLISH GENERAL INFORMATION MACHINE NOMENCLATURE (For BA 551, BA 551D, BA 551CD, BA 611D) (Continues) 55 13 26 15 S301516 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...
  • Page 26 ENGLISH SERVICE MANUAL GENERAL INFORMATION MACHINE NOMENCLATURE (For BA 551, BA 551D, BA 551CD, BA 611D) (Continues) 71 72 73 71 72 73 74 75 76 84 83 78 77 BA 511 BA 551D / BA 551CD / BA 611D S301517 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756...

  • Page 27: Machine Nomenclature (For Ca 451, Ca 531)

    SERVICE MANUAL ENGLISH GENERAL INFORMATION MACHINE NOMENCLATURE (For CA 451, CA 531) Throughout this Manual you will find numbers in brackets – for example: (2). These numbers refer to the components indicated in these two nomenclature pages. Refer to these pages whenever you need to identify a component mentioned in the text. Control panel Handlebar Water removable filler hose (optional)
  • Page 28 ENGLISH SERVICE MANUAL GENERAL INFORMATION MACHINE NOMENCLATURE (For CA 451, CA 531) (Continues) 24 23 S301518 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 29: Machine Nomenclature (For Ca 551)

    SERVICE MANUAL ENGLISH GENERAL INFORMATION MACHINE NOMENCLATURE (For CA 551) Throughout this Manual you will find numbers in brackets – for example: (2). These numbers refer to the components indicated in these two nomenclature pages. Refer to these pages whenever you need to identify a component mentioned in the text. Control panel Handlebar Solution rear filler neck...
  • Page 30 ENGLISH SERVICE MANUAL GENERAL INFORMATION MACHINE NOMENCLATURE (For CA 551) (Continues) S301519 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 31: Solution/Clean Water Supply System

    SERVICE MANUAL ENGLISH SOLUTION/CLEAN WATER SUPPLY SYSTEM SOLUTION/CLEAN WATER SUPPLY SYSTEM SOLUTION/CLEAN WATER TANK AND SUPPLY SYSTEM CLEANING (All models) Drive the machine to the appointed solution disposal area. - (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Turn the ignition key (80) to “0”. - (For BA 451, BA 531, BA 551) Turn off the switches (71) and (73).

  • Page 32: Solution Filter Cleaning (For Ba 551, Ba 551D, Ba 551Cd, Ba 611D, Ca 551, Without Ecoflex™ System)

    ENGLISH SERVICE MANUAL SOLUTION/CLEAN WATER SUPPLY SYSTEM SOLUTION FILTER CLEANING (For BA 551, BA 551D, BA 551CD, BA 611D, CA 551, without EcoFlex™ system) Drive the machine on a level floor. - (For BA 551D, BA 551CD, BA 611D) Turn the ignition key (80) to “0”. - (For BA 551) Turn off the switches (71) and (73).

  • Page 33: Solenoid Valve Disassembly/Assembly (For Ba 451, Ba 451D, Ba 531, Ba 531D, Ca 451, Ca 531)

    SERVICE MANUAL ENGLISH SOLUTION/CLEAN WATER SUPPLY SYSTEM SOLENOID VALVE DISASSEMBLY/ASSEMBLY (For BA 451, BA 451D, BA 531, BA 531D, CA 451, CA 531) Disassembly Remove the brush. Lower the deck by pressing the pedal (11). Remove the screw (A), disconnect the connector (B) and recover the gasket. Disconnect the union (C) from the solenoid valve (D) and recover the gasket.

  • Page 34: Solenoid Valve Disassembly/Assembly (For Ba 551, Ba 551D, Ba 551Cd, Ba 611D, Ca 551)

    ENGLISH SERVICE MANUAL SOLUTION/CLEAN WATER SUPPLY SYSTEM SOLENOID VALVE DISASSEMBLY/ASSEMBLY (For BA 551, BA 551D, BA 551CD, BA 611D, CA 551) Disassembly For machines with brushes/pad-holders) Remove the brushes/pad-holders. Lower the deck by pressing the pedal (11). For machines without EcoFlex™ system) Loosen the clamp (A) and disconnect the hoses (B) from the filter assembly (C). Disconnect the union (D) from the solenoid valve (E) and recover the gasket.

  • Page 35: Troubleshooting

    SERVICE MANUAL ENGLISH SOLUTION/CLEAN WATER SUPPLY SYSTEM TROUBLESHOOTING SMALL AMOUNT OF SOLUTION OR NO SOLUTION REACHES THE BRUSH Possible causes The solution/clean water filter is clogged/dirty (clean). The solution/clean water tap is stuck closed (replace). The solenoid valve is broken or there is an open in the electrical connection (replace the solenoid valve/repair the electrical connection).

  • Page 36: Ecoflex™ System

    ENGLISH SERVICE MANUAL ECOFLEX™ SYSTEM ECOFLEX™ SYSTEM CLEAN WATER FILTER CLEANING (For BA 451D, BA 531D) Drive the machine on a level floor. Turn the ignition key (80) to “0”. Close the clean water tap (A) under the machine left lower side. The tap (A) is closed when it is on the position (B) and it is open when it is on the position (C).

  • Page 37: Clean Water Filter Cleaning (For Ba 551D, Ba 551Cd, Ba 611D)

    SERVICE MANUAL ENGLISH ECOFLEX™ SYSTEM CLEAN WATER FILTER CLEANING (For BA 551D, BA 551CD, BA 611D) Drive the machine on a level floor. Turn the ignition key (80) to “0”. Open the cover (22) and check that the recovery water tank (21) is empty, otherwise empty it with the drain hose (16). Grasp the handle (41) and carefully lift the tank (40).

  • Page 38: Detergent Tank Cleaning (For Ba 451D, Ba 531D, Ba 551D, Ba 551Cd, Ba 611D)

    ENGLISH SERVICE MANUAL ECOFLEX™ SYSTEM DETERGENT TANK CLEANING (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Drive the machine to the appointed detergent disposal area. Turn the ignition key (80) to “0”. Open the cover (22) and check that the recovery water tank (21) is empty, otherwise empty it with the drain hose (16). Close the cover (22).

  • Page 39: Ecoflex™ System Draining (For Ba 451D, Ba 531D, Ba 551D, Ba 551Cd, Ba 611D)

    SERVICE MANUAL ENGLISH ECOFLEX™ SYSTEM ECOFLEX™ SYSTEM DRAINING (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Clean the detergent tank, then remove the detergent remained in the hoses and in the pump. Grasp the handle (41) and carefully lower the tank (40). Turn on the machine by turning the ignition key (80) to “I”.

  • Page 40: Water Pump Disassembly/Assembly (For Ba 451D, Ba 531D, Ba 551D, Ba 551Cd, Ba 611D)

    ENGLISH SERVICE MANUAL ECOFLEX™ SYSTEM WATER PUMP DISASSEMBLY/ASSEMBLY (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Disassembly If the tank (21) contains recovery water: • Drive the machine to the appointed recovery water disposal area. • Turn the ignition key (80) to “0”. •...

  • Page 41: Detergent Pump And Check Valve Disassembly/Assembly (For Ba 451D, Ba 531D)

    SERVICE MANUAL ENGLISH ECOFLEX™ SYSTEM DETERGENT PUMP AND CHECK VALVE DISASSEMBLY/ASSEMBLY (For BA 451D, BA 531D) Disassembly If the tank (21) contains recovery water: • Drive the machine to the appointed recovery water disposal area. • Turn the ignition key (80) to “0”. •...
  • Page 42 ENGLISH SERVICE MANUAL ECOFLEX™ SYSTEM DETERGENT PUMP AND CHECK VALVE DISASSEMBLY/ASSEMBLY (For BA 451D, BA 531D) (Continues) S301527 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 43: Detergent Pump And Check Valve Disassembly/Assembly (For Ba 551D, Ba 551Cd, Ba 611D)

    SERVICE MANUAL ENGLISH ECOFLEX™ SYSTEM DETERGENT PUMP AND CHECK VALVE DISASSEMBLY/ASSEMBLY (For BA 551D, BA 551CD, BA 611D) Disassembly If the tank (21) contains recovery water: • Drive the machine to the appointed recovery water disposal area. • Turn the ignition key (80) to “0”. •...
  • Page 44 ENGLISH SERVICE MANUAL ECOFLEX™ SYSTEM DETERGENT PUMP AND CHECK VALVE DISASSEMBLY/ASSEMBLY (For BA 551D, BA 551CD, BA 611D) (Continues) S301528 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 45: Troubleshooting

    SERVICE MANUAL ENGLISH ECOFLEX™ SYSTEM TROUBLESHOOTING SMALL AMOUNT OF DETERGENT OR NO DETERGENT REACHES THE BRUSHES Possible causes The detergent flow percentage is too low (check/change the percentage as shown in the User Manual). The hydraulic circuit upstream of the detergent pump is not triggered (check if the hose (48) is filled and, if necessary, perform one or more draining cycle, as shown in the relevant paragraph).

  • Page 46: Brushing System

    ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSHING SYSTEM/PAD CLEANING CAUTION! It is advisable to wear protective gloves when cleaning the brushes/pads because there may be sharp debris. Remove the brushes/pads, as shown in the User Manual. Clean and wash the brushes/pads with water and detergent. Check that the brush/pads are integral and not excessively worn;...

  • Page 47: Brush/Pad-Holder/Cylindrical Brush Deck Disassembly/Assembly (For Ba 451, Ba 451D, Ba 531, Ba 531D)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH/PAD-HOLDER/CYLINDRICAL BRUSH DECK DISASSEMBLY/ASSEMBLY (For BA 451, BA 451D, BA 531, BA 531D) The machine can be equipped with either the brush/pad-holder deck or the cylindrical brush deck. Disassembly Drive the machine on a level floor. Remove the brushes/pad-holders, as shown in the User Manual.

  • Page 48: Brush/Pad-Holder/Cylindrical Brush Deck Disassembly/Assembly (For Ba 551, Ba 551D, Ba 551Cd, Ba 611D)

    ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSH/PAD-HOLDER/CYLINDRICAL BRUSH DECK DISASSEMBLY/ASSEMBLY (For BA 551, BA 551D, BA 551CD, BA 611D) The machine can be equipped with either the brush/pad-holder deck (18a and 18b) or the cylindrical brush deck (18c), according to the following procedures. NOTE: When the deck is installed/removed, it may be necessary to change the squeegee too, because they must have the same width.

  • Page 49: Brush/Pad-Holder Deck Disassembly/Assembly (For Ca 451, Ca 531, Ca 551)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH/PAD-HOLDER DECK DISASSEMBLY/ASSEMBLY (For CA 451, CA 531, CA 551) Disassembly Drive the machine to the appointed disposal area, and empty the recovery water tank (21) with the hose (16). Remove the brush/pad-holder, as shown in the User Manual. Place the machine on a hoisting system (if available).
  • Page 50 ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSH/PAD-HOLDER DECK DISASSEMBLY/ASSEMBLY (For CA 451, CA 531, CA 551) (Continues) S301532 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 51: Brush Motor Electrical Input Check (For Ba 451, Ba 451D, Ba 531, Ba 531D)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH MOTOR ELECTRICAL INPUT CHECK (For BA 451, BA 451D, BA 531, BA 531D) WARNING! This procedure must be performed by qualified personnel only. Check If the tank (21) contains recovery water: • Drive the machine to the appointed recovery water disposal area. •...
  • Page 52 ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSH MOTOR ELECTRICAL INPUT CHECK (For BA 451, BA 451D, BA 531, BA 531D) (Continues) S301533 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 53: Brush Motor Electrical Input Check (For Ba 551, Ba 551D)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH MOTOR ELECTRICAL INPUT CHECK (For BA 551, BA 551D) WARNING! This procedure must be performed by qualified personnel only. Check If the tank (21) contains recovery water: • Drive the machine to the appointed recovery water disposal area. •...
  • Page 54 ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSH MOTOR ELECTRICAL INPUT CHECK (For BA 551, BA 551D) (Continues) S301534 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 55: Brush Motor Electrical Input Check (For Ba 551Cd)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH MOTOR ELECTRICAL INPUT CHECK (For BA 551CD) WARNING! This procedure must be performed by qualified personnel only. Check Remove the cylindrical brushes, as shown in the User Manual. Lower the deck by pressing the pedal (11). Apply the amperometric pliers (A) on one cable (B) of the brush motor (C).

  • Page 56: Brush Motor Electrical Input Check (For Ba 611D)

    ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSH MOTOR ELECTRICAL INPUT CHECK (For BA 611D) WARNING! This procedure must be performed by qualified personnel only. Check Remove the brushes, as shown in the User Manual. Lower the deck by pressing the pedal (11). Apply the amperometric pliers (A) on one cable (B) of the brush motor (C).

  • Page 57: Brush Motor Electrical Input Check (For Ca 451, Ca 531, Ca 551)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH MOTOR ELECTRICAL INPUT CHECK (For CA 451, CA 531, CA 551) WARNING! This procedure must be performed by qualified personnel only. Check Remove the brush, as shown in the User Manual. Disconnect the power supply cable (59) from the electrical mains but do not place it on the holder (60). If the power supply cable (59) is on the holder (60), remove it.
  • Page 58 ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSH MOTOR ELECTRICAL INPUT CHECK (For CA 451, CA 531, CA 551) (Continues) S301537 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 59: Brush Motor Carbon Brush Check/Replacement(For Ba 451, Ba 451D, Ba 531, Ba 531D)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH MOTOR CARBON BRUSH CHECK/REPLACEMENT(For BA 451, BA 451D, BA 531, BA 531D) Check If the tank (21) contains recovery water: • Drive the machine to the appointed recovery water disposal area. • (For BA 451D, BA 531D) Turn the ignition key (80) to “0”. •...
  • Page 60 ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSH MOTOR CARBON BRUSH CHECK/REPLACEMENT(For BA 451, BA 451D, BA 531, BA 531D) (Continues) S301539 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 61: Brush Motor Carbon Brush Check/Replacement (For Ba 551, Ba 551D)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH MOTOR CARBON BRUSH CHECK/REPLACEMENT (For BA 551, BA 551D) Check If the tank (21) contains recovery water: • Drive the machine to the appointed recovery water disposal area. • (For BA 551D) Turn the ignition key (80) to “0”. •...
  • Page 62 ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSH MOTOR CARBON BRUSH CHECK/REPLACEMENT (For BA 551, BA 551D) (Continues) S301541 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 63: Brush Motor Carbon Brush Check/Replacement (For Ba 551Cd)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH MOTOR CARBON BRUSH CHECK/REPLACEMENT (For BA 551CD) Check Remove the brush motor (see the procedure in the relevant paragraph). At the workbench, remove dust and debris from the motor, especially in the area of the protection clamp (A). Remove the protection clamp (A).

  • Page 64: Brush Motor Carbon Brush Check/Replacement (For Ba 611D)

    ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSH MOTOR CARBON BRUSH CHECK/REPLACEMENT (For BA 611D) Check Remove the deck (see the procedure in the relevant paragraph). At the workbench, remove dust and debris from the motor, especially in the area of the carbon brushes. Remove four protection covers (A) by disengaging the fasteners.

  • Page 65: Brush Motor Disassembly/Assembly (For Ba 451, Ba 451D, Ba 531, Ba 531D, Ba 551, Ba 551D)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH MOTOR DISASSEMBLY/ASSEMBLY (For BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D) Disassembly Remove the deck (see the procedure in the relevant paragraph). At the workbench, remove the screw (A) from the deck. Remove the hub assembly (B) with a puller.

  • Page 66: Brush Motor Disassembly/Assembly (For Ba 551Cd)

    ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSH MOTOR DISASSEMBLY/ASSEMBLY (For BA 551CD) Disassembly Remove the cylindrical brush deck (see the procedure in the relevant paragraph). At the workbench, remove the screw (A) from the motor which has to be disassembled. Remove the case (B). Loosen the nut (C) and move the pulley (D) to loosen the belt (E).

  • Page 67: Brush Motor Disassembly/Assembly (For Ba 611D)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH MOTOR DISASSEMBLY/ASSEMBLY (For BA 611D) Disassembly Remove the deck (see the procedure in the relevant paragraph). At the workbench, remove the screw (A) from the reduction unit which has to be disassembled. Remove the hub assembly (B) with a puller. Remove the screws (C).

  • Page 68: Brush Motor Disassembly/Assembly (For Ca 451, Ca 531, Ca 551)

    ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSH MOTOR DISASSEMBLY/ASSEMBLY (For CA 451, CA 531, CA 551) Disassembly Remove the deck (see the procedure in the relevant paragraph). At the workbench, remove the screw (A). Remove the hub assembly (B) with a puller. Remove the screws (C).

  • Page 69: Check/Replacement/Adjustment Of Driving Belts From Motors To Cylindrical Brushes (For Ba 551Cd)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM CHECK/REPLACEMENT/ADJUSTMENT OF DRIVING BELTS FROM MOTORS TO CYLINDRICAL BRUSHES (For BA 551CD) Check Drive the machine on a level floor. Turn the ignition key (12) to “0”. Lower the cylindrical brush deck by pressing the pedal (11). Remove the screws (A) and remove the covers (B).
  • Page 70 ENGLISH SERVICE MANUAL BRUSHING SYSTEM CHECK/REPLACEMENT/ADJUSTMENT OF DRIVING BELTS FROM MOTORS TO CYLINDRICAL BRUSHES (For BA 551CD) (Continues) S301548 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 71: Brush Enabling Microswitch Adjustment/Replacement (For Ba 451D, Ba 531D, Ba 551D, Ba 551Cd, Ba 611D)

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH ENABLING MICROSWITCH ADJUSTMENT/REPLACEMENT (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Drive the machine on a level floor. Turn the ignition key (80) to “0”. Disconnect the battery connector (12). Remove the screws (A) and move the drive paddle cover (B). Check that the springs (C) operate correctly when releasing the drive paddle (D).
  • Page 72 ENGLISH SERVICE MANUAL BRUSHING SYSTEM BRUSH ENABLING MICROSWITCH ADJUSTMENT/REPLACEMENT (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) (Continues) S301550 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 73: Troubleshooting

    SERVICE MANUAL ENGLISH BRUSHING SYSTEM TROUBLESHOOTING ALL BRUSHES DO NOT ROTATE Possible causes The brush enabling microswitch is misadjusted or broken (adjust or replace). The wiring harness between microswitch and function electronic board is damaged (repair). The brush motor electromagnetic switch wiring harness is damaged (repair). The function electronic board is damaged (replace).

  • Page 74: Recovery Water System

    ENGLISH SERVICE MANUAL RECOVERY WATER SYSTEM RECOVERY WATER SYSTEM RECOVERY WATER TANK AND VACUUM GRID CLEANING, AND COVER GASKET CHECK (All models) Drive the machine to the appointed recovery water disposal area. (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Turn the ignition key (80) to “0”. (For BA 451, BA 531, BA 551) Turn off the switches (71) and (73).

  • Page 75: Squeegee Cleaning/Check/Replacement And Squeegee Blade Replacement (All Models)

    SERVICE MANUAL ENGLISH RECOVERY WATER SYSTEM SQUEEGEE CLEANING/CHECK/REPLACEMENT AND SQUEEGEE BLADE REPLACEMENT (All models) CAUTION! It is advisable to wear protective gloves when cleaning the squeegee because there may be sharp debris. Disassembly and cleaning Drive the machine on a level floor. (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Turn the ignition key (80) to “0”.
  • Page 76 ENGLISH SERVICE MANUAL RECOVERY WATER SYSTEM SQUEEGEE CLEANING/CHECK/REPLACEMENT AND SQUEEGEE BLADE REPLACEMENT (All models) (Continues) S301552 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 77: Vacuum System Motor Filter Cleaning (All Models)

    SERVICE MANUAL ENGLISH RECOVERY WATER SYSTEM VACUUM SYSTEM MOTOR FILTER CLEANING (All models) Disassembly and cleaning If the tank (21) contains recovery water: Drive the machine to the appointed recovery water disposal area. (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Turn the ignition key (80) to “0”. (For BA 451, BA 531, BA 551) Turn off the switches (71) and (73).

  • Page 78: Vacuum System Motor Electrical Input Check (For Ba 451, Ba 451D, Ba 531, Ba 531D, Ba 551, Ba 551D, Ba 551Cd, Ba 611D)

    ENGLISH SERVICE MANUAL RECOVERY WATER SYSTEM VACUUM SYSTEM MOTOR ELECTRICAL INPUT CHECK (For BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D, BA 551CD, BA 611D) WARNING! This procedure must be performed by qualified personnel only. If the tank (21) contains recovery water: Drive the machine to the appointed recovery water disposal area.

  • Page 79: Vacuum System Motor Electrical Input Check (For Ca 451, Ca 531, Ca 551)

    SERVICE MANUAL ENGLISH RECOVERY WATER SYSTEM VACUUM SYSTEM MOTOR ELECTRICAL INPUT CHECK (For CA 451, CA 531, CA 551) WARNING! This procedure must be performed by qualified personnel only. Check Remove the brush, as shown in the User Manual. Disconnect the power supply cable (59) from the electrical mains but do not place it on the holder (60). If the power supply cable (59) is on the holder (60), remove it.
  • Page 80 ENGLISH SERVICE MANUAL RECOVERY WATER SYSTEM VACUUM SYSTEM MOTOR ELECTRICAL INPUT CHECK (For CA 451, CA 531, CA 551) (Continues) S301554 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 81: Vacuum System Motor Carbon Brush Check/Replacement (All Models)

    SERVICE MANUAL ENGLISH RECOVERY WATER SYSTEM VACUUM SYSTEM MOTOR CARBON BRUSH CHECK/REPLACEMENT (All models) Remove the vacuum system motor (see the procedure in the relevant paragraph). At the workbench, remove the cover (A) (press-fitted) from the vacuum system motor (B). Remove the screws (C).

  • Page 82: Vacuum System Motor Disassembly/Assembly (All Models)

    ENGLISH SERVICE MANUAL RECOVERY WATER SYSTEM VACUUM SYSTEM MOTOR DISASSEMBLY/ASSEMBLY (All models) Disassembly If the tank (21) contains recovery water: Drive the machine to the appointed recovery water disposal area. (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Turn the ignition key (80) to “0”. (For BA 451, BA 531, BA 551) Turn off the switches (71) and (73).
  • Page 83 SERVICE MANUAL ENGLISH RECOVERY WATER SYSTEM VACUUM SYSTEM MOTOR DISASSEMBLY/ASSEMBLY (All models) (Continues) S301556 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 84: Squeegee Spring Check/Replacement (All Models, With Aluminium Squeegee)

    ENGLISH SERVICE MANUAL RECOVERY WATER SYSTEM SQUEEGEE SPRING CHECK/REPLACEMENT (All models, with aluminium squeegee) Check Drive the machine on a level floor. (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Turn the ignition key (80) to “0”. (For BA 451, BA 531, BA 551) Turn off the switches (71) and (73).

  • Page 85: Troubleshooting

    SERVICE MANUAL ENGLISH RECOVERY WATER SYSTEM TROUBLESHOOTING THE VACUUM SYSTEM MOTOR DOES NOT TURN ON The wiring harness between the function electronic board and the vacuum system relay is damaged or short-circuited (check and repair). The vacuum system relay is damaged (replace). The wiring harness between relay and motor is damaged (repair).

  • Page 86: Drive System

    ENGLISH SERVICE MANUAL DRIVE SYSTEM DRIVE SYSTEM SPEED POTENTIOMETER ADJUSTMENT/REPLACEMENT (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Disconnect the battery connector (12). Move aside the recovery water drain hose (16). Remove the battery charger cable (6), if equipped, from the cable holder (7). Remove the screws (A) and carefully move aside the panel (B) by disengaging the cable grommet (C) from its housing on the panel (B).
  • Page 87 SERVICE MANUAL ENGLISH DRIVE SYSTEM SPEED POTENTIOMETER ADJUSTMENT/REPLACEMENT (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) (Continues) S301559 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 88: Maximum Speed Potentiometer Disassembly/Assembly (For Ba 451D, Ba 531D, Ba 551D, Ba 551Cd, Ba 611D)

    ENGLISH SERVICE MANUAL DRIVE SYSTEM MAXIMUM SPEED POTENTIOMETER DISASSEMBLY/ASSEMBLY (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Disassembly Disconnect the battery connector (12). Operating inside the hole (A), loosen the threaded dowel and remove the maximum speed adjuster knob (B). Unscrew the potentiometer mounting nut (C).
  • Page 89 SERVICE MANUAL ENGLISH DRIVE SYSTEM MAXIMUM SPEED POTENTIOMETER DISASSEMBLY/ASSEMBLY (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) (Continues) S301561 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 90: Drive System Motor Electrical Input Check (For Ba 451D, Ba 531D, Ba 551D, Ba 551Cd, Ba 611D)

    ENGLISH SERVICE MANUAL DRIVE SYSTEM DRIVE SYSTEM MOTOR ELECTRICAL INPUT CHECK (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) WARNING! This procedure must be performed by qualified personnel only and with the help of an assistant. Check that the batteries are completely charged, otherwise charge them as shown in the User Manual. If the tank (21) contains recovery water: •...
  • Page 91 SERVICE MANUAL ENGLISH DRIVE SYSTEM DRIVE SYSTEM MOTOR ELECTRICAL INPUT CHECK (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) (Continues) S301562 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 92: Drive System Motor Carbon Brush Check And Replacement (For Ba 451D, Ba 531D, Ba 551D, Ba 551Cd, Ba 611D)

    ENGLISH SERVICE MANUAL DRIVE SYSTEM DRIVE SYSTEM MOTOR CARBON BRUSH CHECK AND REPLACEMENT (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Drive the machine to the appointed disposal area, and empty the recovery water tank (21) with the hose (16). Place the machine on a hoisting system (if available).

  • Page 93: Drive System Motor-Differential Disassembly/Assembly (For Ba 451D, Ba 531D, Ba 551D, Ba 551Cd, Ba 611D)

    SERVICE MANUAL ENGLISH DRIVE SYSTEM DRIVE SYSTEM MOTOR-DIFFERENTIAL DISASSEMBLY/ASSEMBLY (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Disassembly If the tank (21) and/or (20) contains recovery water: • Drive the machine to the appointed disposal area. • Turn the ignition key (80) to “0”.

  • Page 94: Troubleshooting

    ENGLISH SERVICE MANUAL DRIVE SYSTEM TROUBLESHOOTING OPEN CIRCUIT Possible causes There are bulky debris or cords under the machine or around the driving wheels (remove the debris). The motor is damaged (check the motor electrical input). The floor gradient is excessive (do not use the drive system on slopes with a gradient exceeding the specifications). There is a short circuit in the drive system electronic board harness (repair).

  • Page 95: Drive System Electronic Board Diagnostic Table

    SERVICE MANUAL ENGLISH DRIVE SYSTEM TROUBLESHOOTING (Continues) DRIVE SYSTEM ELECTRONIC BOARD DIAGNOSTIC TABLE No. of flashes Action Meaning Drive system/brush enabling microswitch closed when Check the microswitch adjustment starting the machine Faulty speed potentiometer Check both speed potentiometers Faulty speed potentiometer Check both speed potentiometers Speed potentiometer off neutral when starting the machine Check the speed potentiometer adjustment...

  • Page 96: Other Systems

    ENGLISH SERVICE MANUAL OTHER SYSTEM OTHER SYSTEM SCREW AND NUT TIGHTENING CHECK (All models) Drive the machine to the appointed disposal area, and empty the recovery water tank (21) with the hose (16). Place the machine on a hoisting system (if available). Otherwise, drive the machine on a level floor.

  • Page 97: Electrical System

    SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM ELECTRICAL SYSTEM MACHINE WORKING HOUR CHECK (For BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D, BA 551CD, BA 611D, equipped with optional hour counter) (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Turn the ignition key (80) to “I”. Press the vacuum system switch (73) and read on the hour counter (79) the total number of working hours (scrubbing/drying) performed by the machine.

  • Page 98: Battery Disassembly/Assembly

    ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM BATTERY DISASSEMBLY/ASSEMBLY (For BA 451, BA 451D; BA 531, BA 531D, BA 551, BA 551D, BA 551CD, BA 611D) Disassembly If the tank (21) contains recovery water: • Drive the machine to the appointed recovery water disposal area. •...

  • Page 99: Battery Type Setting (Wet Or Gel) (For Ba 451, Ba 531, Ba 551)

    SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM BATTERY TYPE SETTING (WET OR GEL) (For BA 451, BA 531, BA 551) Set the electronic board of the machine and of the battery charger (if equipped) according to the type of batteries installed (WET or GEL) as shown below: Machine setting Press the switch (71) or (73) and pay attention to the following in the very first seconds of machine operation:...

  • Page 100: Battery Type Setting (Wet Or Gel) (For Ba 451D, Ba 531D, Ba 551D, Ba 551Cd, Ba 611D)

    ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM BATTERY TYPE SETTING (WET OR GEL) (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Set the electronic board of the machine and of the battery charger (if equipped) according to the type of batteries installed (WET or GEL) as shown below: Machine setting Turn the ignition key (80) to “I”...

  • Page 101: Fuse Check/Replacement

    SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM FUSE CHECK/REPLACEMENT (For BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D, BA 551CD, BA 611D) Disconnect the battery connector (12). Move aside the recovery water drain hose (16). Remove the battery charger cable (I), if equipped, from the cable holder (J). Remove the screws (A) and carefully move aside the panel (B) by disengaging the grommet (K) from its housing on the panel (B).

  • Page 102: Fuse Check/Replacement (For Ca 431, Ca 531, Ca 551)

    ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM FUSE CHECK/REPLACEMENT (For CA 431, CA 531, CA 551) Disconnect the power supply cable (59) from the electrical mains but do not place it on the holder (60). If the power supply cable (59) is on the holder (60), remove it. Move aside the recovery water drain hose (16).

  • Page 103: Brush Motor Electromagnetic Switch Disassembly/Assembly

    SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM BRUSH MOTOR ELECTROMAGNETIC SWITCH DISASSEMBLY/ASSEMBLY (For BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D, BA 551CD, BA 611D) Disassembly Disconnect the battery connector (12). Move aside the recovery water drain hose (16). Remove the battery charger cable (6), if equipped, from the cable holder (7).
  • Page 104 ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM BRUSH MOTOR ELECTROMAGNETIC SWITCH DISASSEMBLY/ASSEMBLY (For BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D, BA 551CD, BA 611D) (Continues) S301572 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 105: Drive System Electronic Board Disassembly/Assembly

    SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM DRIVE SYSTEM ELECTRONIC BOARD DISASSEMBLY/ASSEMBLY (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Disassembly Disconnect the battery connector (12). Move aside the recovery water drain hose (16). Remove the battery charger cable (6), if equipped, from the cable holder (7). Remove the screws (A) and carefully move aside the panel (B) by disengaging the cable grommet (C) from its housing on the panel (B).
  • Page 106 ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM DRIVE SYSTEM ELECTRONIC BOARD DISASSEMBLY/ASSEMBLY (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) (Continues) S301574 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 107: Function Electronic Board Disassembly/Assembly

    SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM FUNCTION ELECTRONIC BOARD DISASSEMBLY/ASSEMBLY (For BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D, BA 551CD, BA 611D) Disassembly Disconnect the battery connector (12). Move aside the recovery water drain hose (16). Remove the battery charger cable (6), if equipped, from the cable holder (7).

  • Page 108: Water Flow Control Electronic Board Disassembly/Assembly (For Ca 451, Ca 531, Ca 551)

    ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM WATER FLOW CONTROL ELECTRONIC BOARD DISASSEMBLY/ASSEMBLY (For CA 451, CA 531, CA 551) Disassembly Disconnect the power supply cable (59) from the electrical mains but do not place it on the holder (60). If the power supply cable (59) is on the holder (60), remove it. Move aside the recovery water drain hose (16).

  • Page 109: Troubleshooting

    SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM TROUBLESHOOTING See the previous chapters related to the use of the electrical system. Other possible causes: The batteries are discharged or the connections are not efficient (charge the batteries or clean the connections). The batteries are broken (check the battery no-load voltage). NOTE In the machines equipped with on-board battery charger, a fault in the battery charger and relevant connections can affect the machine operation.

  • Page 110: Component Layout (For Ba 451, Ba 531, Ba 551)

    ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM COMPONENT LAYOUT (For BA 451, BA 531, BA 551) Key: 24 V battery Battery connector Battery charger connector Battery charger (optional) Deck connector Function electronic board Brush electromagnetic switches Vacuum system relay Water solenoid valve Deck fuse Vacuum system fuse Signal circuit fuse...

  • Page 111: Wiring Diagram (For Ba 451, Ba 531, Ba 551)

    SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM WIRING DIAGRAM (For BA 451, BA 531, BA 551) Key: Colour codes: 24 V battery Black Battery connector Blue Battery charger connector Brown Battery charger (optional) Green Deck connector Grey Function electronic board Orange Brush electromagnetic switches Pink Vacuum system relay Water solenoid valve...

  • Page 112: Component Layout (For Ba 451D, Ba 531D, Ba 551D, Ba 551Cd, Ba 611D)

    ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM COMPONENT LAYOUT (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Key: 24 V battery Battery connector Battery charger connector Battery charger (optional) Cylindrical brush deck secondary connector Function electronic board Drive system electronic board Brush electromagnetic switches Vacuum system relay Detergent solenoid valve (optional)
  • Page 113 SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM COMPONENT LAYOUT (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) (Continues) F5 F6 ES2 ES1 S301580 BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D 909 6756 000(5)2010-03 CA 451 / CA 531 / CA 551...

  • Page 114: Wiring Diagram (For Ba 451D, Ba 531D, Ba 551D, Ba 551Cd, Ba 611D)

    ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM WIRING DIAGRAM (For BA 451D, BA 531D, BA 551D, BA 551CD, BA 611D) Key: Only for machine with wheel diameter of 9.8 in (250 mm) (**) Only for machines with cylindrical brush deck 24 V battery (***) Only for machines without on-board battery charger Battery connector Colour codes:...

  • Page 115: Component Layout (For Ca 451, Ca 531, Ca 551)

    SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM COMPONENT LAYOUT (For CA 451, CA 531, CA 551) Key: Filtering condenser Water flow check electronic board Water solenoid valve Electronic board fuse Machine frame Hour counter (optional) Grounding screw Brush/pad-holder motor Vacuum system motor Plug Brush/pad-holder switch Vacuum system switch...

  • Page 116: Wiring Diagram (For Ca 451, Ca 531, Ca 551)

    ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM WIRING DIAGRAM (For CA 451, CA 531, CA 551) Legenda: Colour codes: Filtering condenser Black Water flow check electronic board Blue Water solenoid valve Brown Electronic board fuse Green Machine frame Grey Hour counter (optional) Orange Grounding screw Pink...

  • Page 117: Eb1 Electronic Board Connector Pins (For Ba 451, Ba 451D, Ba 531, Ba 531D, Ba 551, Ba 551D, Ba 551Cd, Ba 611D)

    SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM EB1 ELECTRONIC BOARD CONNECTOR PINS (for BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D,BA 551CD, BA 611D) S301581 Electronic board for BA 451, BA 531, BA 551 Supplier Ref. Ref. Rev. Spec. 7CFBA600 Till S/N 072115094 7CFBA606...
  • Page 118 ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM EB1 ELECTRONIC BOARD CONNECTOR PINS (for BA 451, BA 451D, BA 531, BA 531D, BA 551, BA 551D,BA 551CD, BA 611D) (continues) J2: MOLEX MINIFIT type 2 ways vertical Electronic Description V ref. Connected to board in/out Solenoid valve power supply +...
  • Page 120 Nilfisk-Advance SpA Registered office: Via F. Turati 16/18, 20121 Milano Administrative office: Strada Comunale della Braglia n° 18 26862 Guardamiglio (Lodi) setting standards Phone: +39 0377 451124 - Fax: +39 0377 51443 www.nilfisk.com...

This manual is also suitable for:

Ecoflex ba 531dEcoflex ba 551Ecoflex ba 551dEcoflex ba 551cdEcoflex ba 611dEcoflex ca 451 ... Show all

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