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KENT razor blade 26D Service Manual

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Razor Blade 26D/28D/28C
SERVICE MANUAL
Kent models:
908 7099 020 - 908 7100 020 - 908 7101 020
Simple. Clean.
909 6510 000(3) 2007-12

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Summary of Contents for KENT razor blade 26D

  • Page 1 Razor Blade 26D/28D/28C SERVICE MANUAL Kent models: 908 7099 020 - 908 7100 020 - 908 7101 020 Simple. Clean. 909 6510 000(3) 2007-12...

  • Page 3: Table Of Contents

    VACUUM SYSTEM MOTOR DISASSEMBLY/ASSEMBLY ......................32 SQUEEGEE CLEANING/CHECK AND BLADE REPLACEMENT....................33 SQUEEGEE LIFTING CABLE SLIDING SHOE LUBRICATION....................34 SQUEEGEE LIFTING ACTUATOR DISASSEMBLY/ASSEMBLY ....................35 SQUEEGEE LIFTING CABLE DISASSEMBLY/ASSEMBLY ......................36 TROUBLESHOOTING ................................... 37 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 4 FUNCTION ELECTRONIC BOARD REPLACEMENT ........................71 DASHBOARD ELECTRONIC BOARD REPLACEMENT ......................72 TROUBLESHOOTING ................................... 73 FUNCTION ELECTRONIC BOARD ERROR CODES ........................73 COMPONENT LAYOUT ................................78 WIRING DIAGRAM ..................................81 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 5: General Information

    The ignition key is removed. – The machine is securely fastened to the means of transport. OTHER AVAILABLE MANUALS The following manuals are available at Kent Literature Service Department: – RAZOR BLADE Instructions for Use Manual 26D-28D-28C – 909 6457 000 –...

  • Page 6: Safety

    Do not operate the machine near toxic, dangerous, flammable and/or explosive powders, liquids or vapors. – Battery charging produces highly explosive hydrogen gas. Keep the tanks open during battery charging and perform this procedure in well-ventilated areas and away from naked flames. 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 7 Do not allow to be used as a toy. Close attention is necessary when used near children. – Use only as described in this Manual. Use only Kent’s recommended accessories. – Do not use with damaged power supply cable or plug. If the machine is not working as it should, has been damaged, left outdoors or dropped into water, return it to the Service Center.

  • Page 8: Technical Data

    Wheel weight checked • Each wheel print checked on cement • Result expressed as maximum value for both front and rear wheels (**) Under normal working conditions, on a level asphalt surface. 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 9 With 24 V battery box: 1,036 lb (470 kg) Cylindrical brush motor power 0.81 hp (600 W) Cylindrical brush rotation speed 748 rpm Cylindrical brush pressure 73.48 lb (33.4 kg) Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 10 ENGLISH SERVICE MANUAL GENERAL INFORMATION DIMENSIONS RAZOR BLADE 26D 1450 mm (57.0 in) 830 mm (32.6 in) DIMENSIONS RAZOR BLADE 28D 1450 mm (57.0 in) 860 mm (33.9 in) 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 11 SERVICE MANUAL ENGLISH GENERAL INFORMATION DIMENSIONS RAZOR BLADE 28C 1450 mm (57.0 in) 860 mm (33.9 in) Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 12: Maintenance

    Brush/pad-holder motor carbon brush check or replacement Vacuum system motor carbon brush check or replacement Drive system motor carbon brush check or replacement (1) And after the first 8 working hours. 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 13: Machine Nomenclature

    (**) Machines after January 2007 Battery charger Electromagnetic parking brake Front steering, driving and braking wheel 41a. Electromagnetic brake unlock handwheel (*) 41b. Electromagnetic brake unlock handwheel (**) Serial number plate/technical data Rear wheels Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 14 ENGLISH SERVICE MANUAL MAINTENANCE MACHINE NOMENCLATURE (Continues) 7 7c 7b 7a 19 20 39 41a 18 36 43 25 39 41b S301315 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 15 SERVICE MANUAL ENGLISH MAINTENANCE MACHINE NOMENCLATURE (Continues) S301396 S301397 S301318 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 16 ENGLISH SERVICE MANUAL MAINTENANCE MACHINE NOMENCLATURE (Continues) S301619 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 17: Detergent Supply System

    Remove the transparent cover (D), then remove the filter strainer (E) under the machine, in front of the right rear wheel. Clean and install them on the support (F). NOTE The filter strainer (E) must be correctly positioned on the housing (G) of the support (F). Open the tap (A). S301320 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 18 Before screwing the threaded fittings (U) clean them, then apply Teflon tape, according to the screwing direction; • when assembling the solenoid valve (R), the stamped arrow must be tuned in the direction of the solution flow. 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 19 SERVICE MANUAL ENGLISH DETERGENT SUPPLY SYSTEM SOLUTION SYSTEM SOLENOID VALVE/TAP/FILTER DISASSEMBLY/ASSEMBLY (Continues) S301321 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 20: Troubleshooting

    THE SOLUTION REACHES THE BRUSH ALSO WHEN THE MACHINE IS OFF Possible causes: There is dirt or calcium deposit on the solenoid valve gasket (clean). The solenoid valve is broken (replace). 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 21: Brushing System

    (G) collect the solution; otherwise stop the machine and adjust the skirt height with the knobs (A) and (I). After adjusting, tighten the knobs (A) and (I). S301325 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 22: Brush/Pad-Holder Deck Or Cylindrical Brush Deck Disassembly/Assembly

    If the above-mentioned procedures do not lead to a correct electrical input, the motor must be replaced (see the procedure in the relevant paragraph). Perform steps 2 and 3 in the reverse order. 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 23 SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH MOTOR ELECTRICAL INPUT CHECK (Continues) S301326 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 24: Brush Motor Carbon Brush Check And Replacement

    Replace the carbon brushes as an assembly. Assemble the components in the reverse order of disassembly. S301542A 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 25: Brush/Pad-Holder Motor Disassembly/Assembly

    Remove the reduction unit (G). Assembly Assemble the components in the reverse order of disassembly, and note the following: • Place the reduction units (G) as shown in the figure. S301328 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 26 Assemble the components in the reverse order of disassembly, and note the following: • The electrical connections (M) of the motor must be turned upwards; • Install the belt (K) and tension it properly (see the procedure in the relevant paragraph). S301329 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 27 SERVICE MANUAL ENGLISH BRUSHING SYSTEM CYLINDRICAL BRUSH MOTOR DISASSEMBLY/ASSEMBLY (Continues) S301330 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 28: Check/Replacement/Adjustment Of Driving Belts Between Motors And Cylindrical Brushes

    Loosen the nut (J) and adjust the position of the pulley (K). When tensioning procedure has been performed, tighten the nut (J). Repeat step 10. Reset Perform steps 3 to 5 in the reverse order. S301331 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 29 SERVICE MANUAL ENGLISH BRUSHING SYSTEM CHECK/REPLACEMENT/ADJUSTMENT OF DRIVING BELTS BETWEEN MOTORS AND CYLINDRICAL BRUSHES (Continues) S301332 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 30: Brush Deck Lifting/Lowering Actuator Disassembly/Assembly

    Carefully move the electrical component panel (C) and disconnect the deck lifting/lowering actuator connector (D). Remove the lower mounting screw (E) of the actuator (F). Remove the screw (G). Remove the actuator (F). Assembly Assemble the components in the reverse order of disassembly. S301333 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 31 SERVICE MANUAL ENGLISH BRUSHING SYSTEM BRUSH DECK LIFTING/LOWERING ACTUATOR DISASSEMBLY/ASSEMBLY (Continues) S301334 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 32: Troubleshooting

    There is an open in the actuator wiring harness (check the connections according to the procedures shown in the Electrical System chapter, Troubleshooting paragraph). THE MACHINE DOES NOT COLLECT THE SOLUTION COMPLETELY Possible causes: The side skirts are not properly adjusted (adjust/replace). 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 33: Recovery Water System

    If necessary replace the gasket (D) by removing it from its housing (E). When assembling the new gasket, install the joint (F) in the rear central area, as shown in the figure. Check the bearing surface (D) of the gasket (G) for integrity and sealing capabilities. Close the cover (H). S301335 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 34: Vacuum System Motor Electrical Input Check

    If the above-mentioned procedures do not lead to a correct electrical input, the motor must be replaced (see the procedure in the relevant paragraph). Carefully lower the tank assembly (60). S301336 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 35 If the above-mentioned procedures do not lead to a correct electrical input, the motor must be replaced (see the procedure in the relevant paragraph). Carefully lower the tank assembly (60). S301336A Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 36: Vacuum System Motor Carbon Brush Check And Replacement

    If necessary, replace the carbon brushes. Replace the carbon brushes as an assembly. Assemble the components in the reverse order of disassembly. S301337 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 37 If necessary, replace the carbon brushes. Replace the carbon brushes as an assembly. Assemble the components in the reverse order of disassembly. S301337 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 38: Vacuum System Motor Disassembly/Assembly

    Recover the gasket (G). Assembly Assemble the components in the reverse order of disassembly, and note the following: • Check the gasket (G) for integrity and efficiency, otherwise replace it. S301338 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 39 Assemble the components in the reverse order of disassembly, and note the following: • If necessary, clean the filter (G) before assembling it (see the procedure in the relevant paragraph). S301338A Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 40: Squeegee Cleaning/Check And Blade Replacement

    Install the squeegee (24) and screw down the handwheels (27). Connect the vacuum hose (23) to the squeegee (24). If necessary, adjust the squeegee balance adjusting handwheel (28). Lift the squeegee (24) by pressing the switch (6). S301339 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 41: Squeegee Lifting Cable Sliding Shoe Lubrication

    Clean and lubricate the sliding shoe (A) of the squeegee lifting cable (B) with graphite grease. Install the batteries and the battery case (see the procedure in the Electrical System chapter). Lift the squeegee (24). S301340 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 42: Squeegee Lifting Actuator Disassembly/Assembly

    Disconnect the connector (F) of the actuator (I). Disconnect the actuator connector (G) from the clamps (H). Remove the squeegee lifting actuator (I). Assembly Assemble the components in the reverse order of disassembly. S301341 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 43: Squeegee Lifting Cable Disassembly/Assembly

    After installing the squeegee lifting cable, adjust the nut and the locknut (I) so that, when the squeegee is completely lifted, the distance from the floor is 0.78 in (20 mm). S301342 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 44 The recovery water drain hose plug is open (close). THE SQUEEGEE DOES NOT LIFT/LOWER Possible causes (see also the Electrical System chapter, function electronic board diagnosis): The actuator is faulty (repair/replace). 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 45: Parking Brake System

    Get off of the machine and push it manually in the direction shown by the arrow (A), then check that the front wheel (B) is locked. If necessary, replace the electromagnetic brake (see the procedure in the relevant paragraph). B (*) B (**) S301640 Machines up to January 2007 (**) Machines after January 2007 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 46: Electromagnetic Brake Disassembly/Assembly (Machines Up To January 2007)

    When the unlocking handwheel (E) is unscrewed, the electromagnetic brake is activated; when the unlocking handwheel (E) is screwed, the electromagnetic brake is deactivated. Check the parking brake (see the procedure in the relevant paragraph). 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 47 SERVICE MANUAL ENGLISH PARKING BRAKE SYSTEM ELECTROMAGNETIC BRAKE DISASSEMBLY/ASSEMBLY (Machines up to January 2007) (Continues) S301344 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 48: Electromagnetic Brake And Disc With Braking Masses Disassembly/Assembly

    After assembling the electromagnetic brake (G), check that the air gap (L) is 0.007 to 0.012 in (0.19 to 0.31 mm); if necessary adjust the air gap (L) by using the adjusting spacers (M). Check the parking brake (see the procedure in the relevant paragraph). S301641 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 49 SERVICE MANUAL ENGLISH PARKING BRAKE SYSTEM ELECTROMAGNETIC BRAKE AND DISC WITH BRAKING MASSES DISASSEMBLY/ASSEMBLY (Machines after January 2007) (Continues) S301642 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 50: Troubleshooting

    There is an open in the wiring harness between the drive system electronic board and the electromagnetic brake (check/repair the wiring harness/electrical connections). The electromagnetic brake is faulty (replace). The drive system electronic board is faulty (replace). 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 51: Drive System

    Disconnect the electrical connections (D) from the drive system motor. Remove the screws (E), then remove the driving wheel cover (F). Assembly Assemble the components in the reverse order of disassembly. S301345 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 52: Driving Wheel Cover Disassembly/Assembly (Machines After January 2007)

    If necessary, use a rubber mallet to install the cover (N). • Tighten the screws (M) at 141.61 lbf·in (16 N·m; 1.63 kgf·m). • Tighten the screws (I) at 194.71 lbf·in (22 N·m; 2.24 kgf·m). S301643 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 53 SERVICE MANUAL ENGLISH DRIVE SYSTEM DRIVING WHEEL COVER DISASSEMBLY/ASSEMBLY (Machines after January 2007) (Continues) S301644 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 54: Drive System Motor Electrical Input Check (Machines Up To January 2007)

    If the above-mentioned procedures do not lead to a correct electrical input, the motor must be replaced (see the procedure in the relevant paragraph). Perform steps 3 to 6 in the reverse order. S301346 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 55: Drive System Motor Electrical Input Check (Machines After January 2007)

    If the above-mentioned procedures do not lead to a correct electrical input, the motor must be replaced (see the procedure in the relevant paragraph). Perform steps 3 to 6 in the reverse order. S301645 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 56: Drive System Motor Carbon Brush Check And Replacement (Machines Up To January 2007)

    Replacement If necessary, remove the nuts (D) and disengage the lead-in wires (E), then remove the carbon brushes. Reset Assemble the components in the reverse order of disassembly. S301347 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 57: Drive System Motor Carbon Brush Check And Replacement (Machines After January 2007)

    If necessary, replace the carbon brushes. Reset Assemble the components in the reverse order of disassembly. S301646 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 58: Drive System Motor Sliding Contact Check And Replacement (Machines After January 2007)

    Reset Assemble the components in the reverse order of disassembly, and note the following: • The sliding contact surface (H) must be turned downwards, as shown in the figure. S301647 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 59 SERVICE MANUAL ENGLISH DRIVE SYSTEM DRIVE SYSTEM MOTOR SLIDING CONTACT CHECK AND REPLACEMENT (Machines after January 2007) (Continues) S301648 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 60: Drive System Motor Disassembly/Assembly (Machines Up To January 2007)

    The connectors (A) of the drive system motor (K) must be turned upwards. • If the bearing (M) comes out of its seat, reinsert it by pushing it on the outer ring by using a bush with appropriate diameter. S301348 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 61: Drive System Motor, Bearing And Gasket Disassembly/Assembly (Machines After January 2007)

    Cut the fastening clamps (B) of the connector (C). Disconnect the electromagnetic brake connector (C). Remove the screws (D), then remove the cover (E). Disconnect the electrical connections (F). S301643 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 62 If necessary, use a rubber mallet to install the cover (N). • Tighten the screws (M) at 141.61 lbf·in (16 N·m; 1.63 kgf·m). • Tighten the screws (I) at 194.71 lbf·in (22 N·m; 2.24 kgf·m). S301649 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 63 SERVICE MANUAL ENGLISH DRIVE SYSTEM DRIVE SYSTEM MOTOR, BEARING AND GASKET DISASSEMBLY/ASSEMBLY (Machines after January 2007) (Continues) U R T S S301650 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 64: Forward/Reverse Gear Pedal Disassembly/Assembly

    Engage the parking brake. Remove the pedal mounting screws (A). Slightly lift the pedal (B) and disconnect the connector (C). Assembly Assemble the components in the reverse order of disassembly. S301349 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 65: Forward/Reverse Gear Pedal Potentiometer Check And Adjustment

    (E). Then tighten the screw (F). Install the protection (B) and tighten the screws (A). Install the forward/reverse gear pedal (see the procedure in the relevant paragraph). S301350 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 66: Speed Reduction Sensor Check/Adjustment

    If necessary, loosen the nuts (E) and adjust the position of the sensor (B). After adjusting, tighten the nuts (E). Remove the machine from the hoisting system and check again (steps 1 and 2). S301351 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 67: Speed Reduction Sensor Replacement

    Insert the speed reduction sensor wiring harness (O) with the connector (P) disconnected; then connect the wiring harness to the connector (P), paying attention to the cable colours. • Adjust the speed reduction sensor (see the procedure in the relevant paragraph). S301398 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 68 ENGLISH SERVICE MANUAL DRIVE SYSTEM SPEED REDUCTION SENSOR REPLACEMENT (Continues) S301353 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 69: Driver's Seat Safety Microswitch Operation Check

    Assemble the components in the reverse order of disassembly. Check that the machine cannot move if the operator is not on the driver's seat (37) (see the above-mentioned procedure). S301354 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 70: Troubleshooting

    The warning LED (99) stays on, when the drive system operates properly and the machine is in the following condition: • Ignition key (12) turned to "I". If the warning LED (99) is off or flashing, it indicates an error. Check the error code according to the following table. 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 71 * = Reset the system by turning the ignition key to “0” and then to “I”. NOTE: the LED signals only one error code at a time; other errors are not queued. Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 72: Other Systems

    Carefully lift the tank assembly (60). Check: • Tightening of mounting screws and nuts; • Correct position of fasteners; • Visible faults in the components; • Leaks of fluids. Carefully lower the tank assembly (60). 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 73: Front Fairing Disassembly/Assembly

    Disconnect the lever (M) from the cable terminal (N). Remove the screws (O). Lift and remove the fairing (P). Assembly Assemble the components in the reverse order of disassembly. S301355 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 74 ENGLISH SERVICE MANUAL OTHER SYSTEMS FRONT FAIRING DISASSEMBLY/ASSEMBLY (Continues) S301356 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 75: Electrical System

    Assemble the components in the reverse order of disassembly, and note the following: • If a battery box is installed, place it on the left side of the machine, to allow the tank assembly (60) to be closed correctly. Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 76: Fuse Check/Replacement

    Low power circuit protection fuse (F3) (5 A) (A) • Function electronic board protection fuse (F1) (100 A) (B) Install the electrical component panel (100) and the cover (92), then tighten the nuts (93). S301400 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 77: Drive System Electronic Board Replacement

    Disconnect the connectors (A) from the drive system electronic board (B). Remove the screws (C). Remove the drive system electronic board (B). Assembly Assemble the components in the reverse order of disassembly. S301358 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 78: Function Electronic Board Replacement

    Disconnect the connectors (B) of the function electronic board (C). Disconnect the lead-in wires (D). Remove the screws (E). Remove the function electronic board (C). Assembly Assemble the components in the reverse order of disassembly. S301359 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 79: Dashboard Electronic Board Replacement

    Disconnect the connectors (A) of the dashboard electronic board (B). Remove the dashboard electronic board (B) by disengaging the fasteners (E). Assembly Assemble the components in the reverse order of disassembly. S301360 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 80: Troubleshooting

    If the green warning LED (102) is on, but the red LED (101) or (103) is flashing, it indicates an error. Check the error code according to the following table. 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 81 100 A) output (replace). Mechanical obstacle to vacuum system Vacuum IMAX_ASP. (>5s at By ignition 8 flashes motor rotation, or faulty vacuum system system 50 A) motor (replace). motor output Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 82 (check), or faulty overcurrent) squeegee actuator (replace), or stuck Squeegee squeegee actuator (check), or faulty Squeegee By switch 14 flashes actuator CC (lifting function electronic board (replace). actuator overcurrent) 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 83 Indef (0 V) Return from driver's seat microswitch Indef (0 V) Pressure switch input 0 - 5 V Auxiliary power supply (+) +24 V Out(**) Auxiliary power supply (-) Out(**) Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 84 Reference voltage in/out Fan power supply 24 V Fan power supply Indef (0 V) Pull-up at 24 V (**) Outputs allowed also in case of ALARM, see the error code table 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...

  • Page 85: Component Layout

    Working speed potentiometer Speed potentiometer (pedal) Emergency push-button Actuator position 0 microswitch Actuator position 1 microswitch Actuator position 2 microswitch Steering sensor Driver's seat microswitch Reverse gear switch (if equipped) Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 86 ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM COMPONENT LAYOUT (Continues) BRX (**) BRX (*) S301651 Machines up to January 2007 (**) Machines after January 2007 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 87 SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM COMPONENT LAYOUT (Continues) S301403 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...

  • Page 88: Wiring Diagram

    Working speed potentiometer Speed potentiometer (pedal) Emergency push-button Actuator position 0 microswitch Actuator position 1 microswitch Actuator position 2 microswitch Steering sensor Driver's seat microswitch Reverse gear switch (if equipped) 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28C...
  • Page 89 SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM WIRING DIAGRAM (Continues) S301652 Razor Blade 26D / 28D / 28C 909 6510 000(3)2007-12...
  • Page 90 14600 21st Avenue North Plymouth, MN, 55447-3408 www.kenteuroclean.com Phone: 800-334-1083 Fax: 866-261-4779 ©2007 Printed in Italy...

This manual is also suitable for:

Razor blade 28d908 7101 020Razor blade 28c908 7099 020908 7100 020

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