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Alfa Network A500 Operator's Manual

Walk-behind floor scrubber
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WALK-BEHIND FLOOR SCRUBBER
OPERATOR MANUAL
Rev. 00 (07- 2017)
*9015591*
ENGLISH
R
9015591

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  • Page 1 ENGLISH WALK-BEHIND FLOOR SCRUBBER OPERATOR MANUAL Brazil For the latest Parts manuals and other 9015591 language Operator manuals, visit: Rev. 00 (07- 2017) www.alfa.com/manuals *9015591* www.alfatennant.com.br...

  • Page 2: Introduction

    INTRODUCTION INTENDED USE This manual is furnished with each new model. The A500 walk-behind floor scrubber is intended for It provides necessary operation and maintenance commercial use, for example in hotels, schools, hospitals, factories, shops, offices and rental instructions. businesses. It is designed to scrub hard floor surfaces Read this manual completely and (concrete, tile, stone, synthetic, etc.) in an indoor...

  • Page 3: Table Of Contents

    SYSTEM SERVICE INDICATOR CODES - OPTION ......ALFA A500 (07-2017)
  • Page 4 CONTENTS ALFA A500 (07-2017)

  • Page 5: Safety

    Use hoist or jack that will support the electronic devices. weight of the machine. If not in proper operating condition. Avoid moving parts. Do not wear loose In outdoor areas. This machine is for clothing or jewelry and secure long hair. indoor use only. ALFA A500 (07-2017)
  • Page 6 Battery installation must be done by trained personnel. Only use distilled water when filling the automatic battery watering tank. Wear personal protection equipment as needed and where recommended in this manual. For Safety: wear protective gloves. For Safety: wear eye protection. ALFA A500 (07-2017)

  • Page 7: Safety Labels

    WARNING LABEL - result. Disconnect Spinning brush. charger cord before Keep hands away. servicing. Located on scrub Located near control head. console. WARNING LABEL - Electrical Hazard. Disconnect battery cables before servicing machine. Located on circuit board panel. ALFA A500 (07-2017)

  • Page 8: Operation

    OPERATION MACHINE COMPONENTS ALFA A500 (07-2017)

  • Page 9: Machine Components

    7. Battery discharge indicator (BDI) 8. ec-H2O indicator (option) MACHINE SYMBOLS Read Manual Key On No detergent (ec-H2O option) Fast speed Key Off ec-H2O scrubbing Slow speed Water temperature (option) (ec-H2O option) Battery charge Forward / Reverse Circuit breaker ALFA A500 (07-2017)

  • Page 10: Installing Batteries

    FOR SAFETY: When servicing machine, use a the machine to easily scrub away the suspended soil. hoist or adequate assistance when lifting batteries. The converted water then returns to normal water in the recovery tank. FIG. 2 ALFA A500 (07-2017)

  • Page 11: Brush And Pad Information

    3. Connect the vacuum hose to the squeegee prepare the floor for re-coating. assembly (Figure 6). Turf scrubbing pad (Green) - Used to scrub uneven floor surfaces with crevices, cracks and deep grout lines. FIG. 6 ALFA A500 (07-2017)

  • Page 12: Installing Disk Brushes/Pads (Disk Scrub Head Model)

    (Figure 12). Pad will drop to floor. 2. Attach the pad to the pad driver before installing the driver. Secure pad with center-lock (Figure 9). FIG. 12 FIG. 9 ALFA A500 (07-2017)

  • Page 13: Filling Solution Tank

    (Figure 17). The water before operating the ec-H2O system. ec-H2O icon will begin to blink blue and red. See Conventional cleaning detergents will cause an ec-H2O SERVICE INDICATOR CODES for further details. system fault. FIG. 14 FIG. 17 ALFA A500 (07-2017)

  • Page 14: Control Panel Operation

    The flashing LED alerts the operator to reduce the brush pressure setting to prevent brush motor overload. ALFA A500 (07-2017)

  • Page 15: Service Indicator

    The and the float shut-off screen is installed and clean. vacuum motor will automatically start when squeegee is lowered to floor.  Check scrub head skirt for wear and damage. ALFA A500 (07-2017)

  • Page 16: Emergency Shut-Off Button

    3. Wipe squeegee blades with a cloth if blades leave streaks. 4. Avoid bumping the machine into posts and walls. 5. When draining and refilling machine, always top off the optional Severe Environment tank with detergent. FIG. 29 ALFA A500 (07-2017)

  • Page 17: Circuit Breaker Panel

    60 A FOR SAFETY: When servicing machine, all repairs must be performed by trained personnel. FIG. 34 NOTE: When using a bucket to drain the machine, do not use the same bucket to fill the solution tank. ALFA A500 (07-2017)

  • Page 18: Draining Solution Tank

    2. To drain remaining water from solution tank, pull the solution tank level hose from the accessory rail (Figure 37). Firmly reconnect the hose to the accessory rail after draining tank. FIG. 37 ALFA A500 (07-2017)

  • Page 19: Service Indicator Codes

    Release start bail or remove bail obstruction ☼ S ☼ S ☼ machine on. before turning machine on. Scrub control board communication fault Restart. If fault repeats, contact service. S ☼ ☼ ☼ S ec-H2O system communication fault ALFA A500 (07-2017)

  • Page 20: Ec-H2O System Service Indicator Codes - Option

    Verify if cleaning detergent was added to solution tank. If ec-H2O system was operated with cleaning detergent, drain solution tank, add clear water and operate the ec-H2O system until the fault code clears. If fault repeats, continue to recycle key until fault clears. ALFA A500 (07-2017)

  • Page 21: Maintenance

    Remove and clean 200 Hours Batteries, terminals and cables Check and clean 750 Hours Vacuum motor Replace carbon brushes 1250 Hours Propel motor Replace carbon brushes Brush motor Replace carbon brushes O = Operator T = Trained Personnel ALFA A500 (07-2017)

  • Page 22: Machine Maintenance

    6. Wipe the squeegee blades clean. Inspect blades for wear and damage (Figure 45). Rotate blade if worn. See SQUEEGEE BLADE REPLACEMENT. FIG. 41 3. Drain and rinse out the solution tank (Figure 42). FIG. 45 FIG. 42 ALFA A500 (07-2017)

  • Page 23: After Weekly Use

    Drain solution tank. Remove the solution tank filter and clean screen (Figure 51). Turn the filter bowl counter-clockwise to remove. FIG. 48 ATTENTION: Do not disconnect battery cables while charger is plugged in, circuit board damage may result. FIG. 51 ALFA A500 (07-2017)

  • Page 24: Electric Motors

    Use a scrub brush with a strong mixture of battery acid. baking soda and water (Figure 53). Do not remove battery caps when cleaning batteries. MAINTENANCE-FREE BATTERIES Maintenance-free (Sealed AGM) batteries do not require watering. Cleaning and other routine maintenance is still required. FIG. 53 ALFA A500 (07-2017)

  • Page 25: Charging Batteries

    AC power supply cord first parking brake if equipped. before disconnecting charger from machine (Figure 3. If the machine is equipped with flooded (wet) lead- 55). acid batteries check the battery electrolyte level weekly before charging. FIG. 55 ALFA A500 (07-2017)

  • Page 26: Battery Charger Settings

    (Figure 56). To 5. Squeeze the squeegee frame and blade retainer loosen the knobs quickly, squeeze the blade together and re-tighten the two outside knobs retainer and squeegee frame together. (Figure 59). FIG. 56 FIG. 59 ALFA A500 (07-2017)

  • Page 27: Ec-H2O Water Conditioning Cartridge Replacement

    3. Disconnect the two hose connectors from the top of the cartridge by pressing the gray collars inward and pulling the connectors outward (Figure 61). Lift cartridge to remove. Solution flow button Gray Collar FIG. 63 FIG. 61 ALFA A500 (07-2017)

  • Page 28: Machine Jacking

    NOTE: When transporting machine in an open truck or trailer, secure recovery tank lid. FIG. 64 ATTENTION: Do not use control console area or accessory storage rails for tie-down locations, damage may occur. FIG. 65 ALFA A500 (07-2017)

  • Page 29: Storing Machine

    Models equipped with ec-H2O system - Turn machine and set the solution flow rate on and operate ec-H2O scrubbing to cycle antifreeze through system. Turn machine off when antifreeze is visible on the floor. This may take up to two minutes. ALFA A500 (07-2017)

  • Page 30: Troubleshooting

    Debris caught in brush/pad Remove debris performance Worn brush/pad Replace brush/pad Incorrect brush pressure Adjust brush pressure Wrong brush/pad type Use correct brush/pad for application Low battery charge Recharge batteries Uneven brush pressure Scrub head/brushes not level. Contact service ALFA A500 (07-2017)
  • Page 31 Charge batteries Batteries need maintenance See BATTERIES Defective battery or end of battery life Replace batteries Battery discharge indicator (BDI) See CHARGING BATTERIES programmed incorrectly Faulty charger Replace battery charger Brush pressure set too high Lower brush pressure ALFA A500 (07-2017)

  • Page 32: Specifications

    Sound uncertainty K 0.8 dB(A) Sound power level uncertainty L 83.1 dB(A) uncertainty K Machine vibration at hand-arm* <2.5 m/s Ambient operating temperature Min: 36F/2C, Max: 110F/43C *Values per IEC 60335-2-72. Specifications are subject to change without notice. ALFA A500 (07-2017)

  • Page 33: Machine Dimensions

    SPECIFICATIONS MACHINE DIMENSIONS DUAL DISK MODEL 33.5 in / 800 mm 43.3 in 1100 mm 61.1 in / 1552 mm 41.3 in / 1049 mm (Standard) 46.6 in / 1234 mm (Option) ALFA A500 (07-2017)

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