KENT Edge 28B Service Manual
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KENT Edge 28B Service Manual

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Edge 28B
SERVICE MANUAL
Kent model: 908 4703 010
Simple. Clean.
1463165000(1)2007-02

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Summary of Contents for KENT Edge 28B

  • Page 1 Edge 28B SERVICE MANUAL Kent model: 908 4703 010 Simple. Clean. 1463165000(1)2007-02...
  • Page 2 ENGLISH SERVICE MANUAL 1463165000(1)2007-02 Edge 28B...

  • Page 3: Table Of Contents

    BATTERY CHARGER CABLE INTEGRITY CHECK ................... 36 BATTERY CHARGING ............................37 BATTERY DISASSEMBLY/ASSEMBLY ......................38 HOOD SAFETY SWITCH OPERATION CHECK ....................38 LAMELLAR FUSE CHECK/REPLACEMENT ..................... 39 TROUBLESHOOTING ............................40 COMPONENT LAYOUT ............................41 WIRING DIAGRAM ............................. 42 Edge 28B 1463165000(1)2007-02...

  • Page 4: General Information

    The machine is securely fastened to the means of transport. OTHER AVAILABLE MANUALS The following manuals are available at Kent Literature Service Department: – Edge 28B, Spare Parts List – Kent Form Number 146 3087 000 – Edge 28B, User Manual – Kent Form Number 146 3082 000 SAFETY The following symbols indicate potentially dangerous situations.

  • Page 5: General Instructions

    Do not allow to be used as a toy. Close attention is necessary when used near children. – Use only as shown in this Manual. Use only Kent recommended accessories. – Take all necessary precautions to prevent hair, jewerly and loose clothes from being caught by the machine moving parts.

  • Page 6: Technical Data

    Side broom motor 40 W Vacuum system motor 50 W Dust vacuuming and filtering Values Dust filter 5-10 µm Dust filter surface 10.8 ft2 (1 m Main broom compartment vacuum 0.24 in H O (6.2 mm H Edge 28B 1463165000(1)2007-02...

  • Page 7: Maintenance

    Dust filter cleaning and integrity check Hopper gasket check Filter shaker operation check Drive belt and clutch visual inspection Drive system belt tensioner adjustment Nut and screw tightening check Motor carbon brush check or replacement (1): And after the first 8 hours. Edge 28B 1463165000(1)2007-02...

  • Page 8: Machine Nomenclature

    Main motor circuit breaker Battery Dust filter Side broom motor Main motor Drive system gear (clutch) Vacuum fan Battery charger - Function control Vacuum system motor lamellar fuse (7.5 A) Hood Hopper upper handle 20 19 S301584 Edge 28B 1463165000(1)2007-02...

  • Page 9: Sweeping System

    Perform step 1 again to check that the side broom is at the correct distance from the ground. When the broom is too worn and can no longer be adjusted, replace it according to the procedure shown in the relevant paragraph. � S301585 Edge 28B 1463165000(1)2007-02...

  • Page 10: Side Broom Disassembly/Assembly

    Loosen the knob (A) inside the side broom, then remove the broom (B) by disengaging it from the pins (C). Assembly Install the new broom on the machine engaging it on the pins (C), then tighten the knob (A). Adjust the height of the new broom according to the procedure shown in the previous paragraph. S301586 Edge 28B 1463165000(1)2007-02...

  • Page 11: Main Broom Height Check And Adjustment

    Pay careful attention when performing the above-mentioned checks, and always use the machine according to the indicated conditions. 1.2 in - 2 in 3 cm - 5 cm S301587 Edge 28B 1463165000(1)2007-02...

  • Page 12: Main Broom Disassembly/Assembly

    Install the new main broom with the bristles rows (D) bent as shown in the figure. Install the new broom by performing steps 3 to 6 in the reverse order. Adjust the main broom height according to the procedure shown on the relevant page. S301588 Edge 28B 1463165000(1)2007-02...

  • Page 13: Main Motor-To-Idler Gear Belt Disassembly/Assembly (For Main Broom)

    Assembly Perform steps 2 to 4 in the reverse order. Visually inspect and adjust the driving belts and clutch (see the procedure in the relevant paragraph). Install the hood (see the procedure in the relevant paragraph). S301589 Edge 28B 1463165000(1)2007-02...

  • Page 14: Main Broom Belt Disassembly/Assembly

    Visually inspect and adjust the driving belts and clutch (see the procedure in the relevant paragraph). Install the main broom (see the procedure in the relevant paragraph). Install the hood (see the procedure in the relevant paragraph). S301590 Edge 28B 1463165000(1)2007-02...

  • Page 15: Side Broom Motor Electrical Input Check

    If necessary, disassemble the motor (see the procedure in the relevant paragraph), clean it and check its moving parts. 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). Install the side broom cover (see the procedure in the relevant paragraph). S301591 Edge 28B 1463165000(1)2007-02...

  • Page 16: Side Broom Motor Disassembly/Assembly

    Remove the side broom hub (B). Disconnect the connector (C) of the side broom motor (E). Remove the screws (D). Remove the side broom motor (E). Assembly Assemble the components in the reverse order of disassembly. S301592 Edge 28B 1463165000(1)2007-02...

  • Page 17: Troubleshooting

    The battery voltage is too low, the warning light (4) is on (charge the battery). The motor carbon brushes are worn (replace). The motor is faulty (repair/replace). The wiring harness is damaged (repair). There is an open in the circuit breaker (reset). The main switch is damaged (replace). Edge 28B 1463165000(1)2007-02...

  • Page 18: Skirt

    Check that the front and rear skirts (C and D) slightly rub on the ground. Check the skirts for integrity, cuts or tears, which can reduce the machine vacuum capabilities. Note that the front skirt has typical vertical cuts (E). If necessary replace the front and/or rear skirts (see the procedure in the relevant paragraph). 0-2 mm 0-0.08 in S301593 Edge 28B 1463165000(1)2007-02...

  • Page 19: Left Side Skirt Disassembly/Assembly

    At the workbench, remove the screws (D), then remove the skirt assembly with straps (E). Remove the screw (F) and separate the left skirt (G) from the straps (H). Assembly Assemble the components in the reverse order of disassembly. S301594 Edge 28B 1463165000(1)2007-02...

  • Page 20: Right Side Skirt Disassembly/Assembly

    Remove the screws (A), then remove the right skirt assembly with straps (B). At the workbench, remove the screw (C) and separate the right skirt (D) from the straps (E). Assembly Assemble the components in the reverse order of disassembly. S301595 Edge 28B 1463165000(1)2007-02...

  • Page 21: Rear Skirt Disassembly/Assembly

    S301596 FRONT SKIRT DISASSEMBLY/ASSEMBLY Disassembly Remove the hopper (9). At the workbench, remove the screws (A), then remove the strap (B). Remove the front skirt (C). Assembly Assemble the components in the reverse order of disassembly. S301597 Edge 28B 1463165000(1)2007-02...

  • Page 22: Dust And Debris Collection System

    Clean the bearing surface of the hopper gasket (L) and check it for integrity and sealing capabilities. If necessary, replace Assemble the components in the reverse order of disassembly. NOTE Assemble the filter with the gasket (J) positioned as shown in the figure. S301598 Edge 28B 1463165000(1)2007-02...

  • Page 23: Filter Shaker Operation Check

    Check the filter shaker terminals (A) for integrity and contact with the dust filter (B). Activate the filter shaker knob (C) and check that the terminals (A) shake the dust filter (B) correctly. Install the hopper (9). S301599 Edge 28B 1463165000(1)2007-02...

  • Page 24: 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). Install the hood (see the procedure in the relevant paragraph). S301600 Edge 28B 1463165000(1)2007-02...

  • Page 25: Vacuum System Motor Disassembly/Assembly

    There are foreign materials clogging the vacuum fan (remove the motor and the vacuum fan). The vacuum system motor is faulty (repair/replace). THE FILTER SHAKER DOES NOT WORK Possible causes: The filter shaker terminals are damaged (replace the filter shaker). Edge 28B 1463165000(1)2007-02...

  • Page 26: Drive System

    Loosen the nut (E), then adjust the drive system control cable with the adjuster (D). When the adjustment is completed, tighten the nut (EN). Check the return spring (F) for proper operation. Install the hood (see the procedure in the relevant paragraph). S301602 Edge 28B 1463165000(1)2007-02...

  • Page 27: Driving Belt Disassembly/Assembly

    Check the tensioner (M) and the spring (N) for proper operation. Assembly Perform steps 4 to 8 in the reverse order. Visually inspect and adjust the driving belts and clutch (see the procedure in the relevant paragraph). Perform steps 1 to 3 in the reverse order. S301603 Edge 28B 1463165000(1)2007-02...

  • Page 28: Troubleshooting

    The drive system control cable is misadjusted or broken (adjust/replace). The driving belt is misadjusted or broken (adjust/replace). The main motor carbon brushes are worn (replace). The main motor is faulty (repair/replace). The clutch is misadjusted or broken (adjust/replace). Edge 28B 1463165000(1)2007-02...

  • Page 29: Main Motor

    If necessary, loosen the nut (N) and adjust the pressure of the clutch (O) on the shaft (P), by moving the lever (Q) for one or more notches (R). When the adjustment is completed, tighten the nut (N). Perform steps 1 to 3 in the reverse order. S301604 Edge 28B 1463165000(1)2007-02...

  • Page 30: Main Motor Electrical Input Check

    If necessary, disassemble the motor (see the procedure in the relevant paragraph), clean it and check its moving parts. 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). Install the hood (see the procedure in the relevant paragraph). S301605 Edge 28B 1463165000(1)2007-02...

  • Page 31: Main Motor Carbon Brush Check And Replacement

    If necessary, replace the carbon brushes. Replace the carbon brushes as an assembly. Reset Assemble the components in the reverse order of disassembly. S301606 Edge 28B 1463165000(1)2007-02...

  • Page 32: Main Motor Disassembly/Assembly

    Remove the screw (V), then remove the main motor (W). Assembly Perform steps 6 to 11 in the reverse order. Visually inspect and adjust the driving belts and clutch (see the procedure in the relevant paragraph). Perform steps 1 to 5 in the reverse order. S301607 Edge 28B 1463165000(1)2007-02...
  • Page 33 SERVICE MANUAL ENGLISH MAIN MOTOR MAIN MOTOR DISASSEMBLY/ASSEMBLY (Continues) S301608 Edge 28B 1463165000(1)2007-02...

  • Page 34: Troubleshooting

    Wait at least 2 minutes after the open circuit. After repairing, press the circuit breaker button (21). THE MACHINE DOES NOT MOVE/THE MAIN BROOM DOES NOT TURN Possible causes: The driving belts are misadjusted or broken (adjust/replace). See also the Troubleshooting of the following systems: – Sweeping system – Drive system Edge 28B 1463165000(1)2007-02...

  • Page 35: Other Systems

    • Visible faults in the components; Connect the negative connector of the battery (22), then install the hood (see the procedure in the relevant paragraph). Install the side broom cover (see the procedure in the relevant paragraph). Edge 28B 1463165000(1)2007-02...

  • Page 36: Hood Disassembly/Assembly

    Lift the hood (F) and lay it on the ground. If necessary, disconnect the connectors (G) (mark their positions to reinstall them correctly); then disconnect the connector (H) and remove the hood (I). Assembly Assemble the components in the reverse order of disassembly. S301609 Edge 28B 1463165000(1)2007-02...

  • Page 37: Side Broom Cover Disassembly/Assembly

    Remove the lever (A). Remove the self-locking nut (B). Unscrew the knob (C) from the plate (D). Remove the screws (E), then remove the side broom cover (F). Assembly Assemble the components in the reverse order of disassembly. S301610 Edge 28B 1463165000(1)2007-02...

  • Page 38: Electrical System

    When the green warning light (F) turns on, the batteries are charged. Disconnect the battery charger cable (B) from the electrical mains and place it in the housing (C). NOTE When the battery charger is connected to the electrical mains, all machine functions are automatically disabled. S301611 Edge 28B 1463165000(1)2007-02...

  • Page 39: Battery Disassembly/Assembly

    Place the battery against the edges (I) and (J), then bring the brackets (G) and (H) against the battery (C) and tighten the screws (E) and (F). If necessary, when installing a bigger battery, use the holes (K) and (L) to hold the battery with the brackets (G) and (H), with the screws (E) and (F). S301612 Edge 28B 1463165000(1)2007-02...

  • Page 40: Hood Safety Switch Operation Check

    Remove the hood (30) (see the procedure in the relevant paragraph). When the hood (30) is removed, press the main switch (1) and check that all machine functions are disabled. If necessary, check the microswitch (A) operation and, if necessary, replace it. S301613 Edge 28B 1463165000(1)2007-02...

  • Page 41: Lamellar Fuse Check/Replacement

    ELECTRICAL SYSTEM LAMELLAR FUSE CHECK/REPLACEMENT Remove the hood (30) (see the procedure in the relevant paragraph). Check/replace the 7.5 A vacuum system motor lamellar fuse (A). Install the hood (30) (see the procedure in the relevant paragraph). S301614 Edge 28B 1463165000(1)2007-02...

  • Page 42: Troubleshooting

    See the previous chapters relevant to the use of the electrical system. Other possible causes: The battery is discharged or the connections are inefficient (check the battery or clean the connections). There is an open in the fuses (reset/replace). The wiring harness is cut or squashed (repair). Edge 28B 1463165000(1)2007-02...

  • Page 43: Component Layout

    BAT: Batteries CH1: Battery charger - Function control EB1: Electronic board LED ES1: Relay Main fuse Vacuum fan fuse Side broom fuse Main motor Vacuum system motor Side broom motor SW1: Main switch SW2: Hopper microswitch S301615 Edge 28B 1463165000(1)2007-02...

  • Page 44: Wiring Diagram

    Main motor Vacuum system motor Violet Side broom motor White SW1: Main switch Yellow SW2: Hopper microswitch The battery charger cable has also the function of checking the battery charge and the machine ignition. SW1a SW1b S301616 1463165000(1)2007-02 Edge 28B...
  • Page 45 SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM Edge 28B 1463165000(1)2007-02...
  • Page 46 14600 21st Avenue North Plymouth, MN, 55447-3408 www.kenteuroclean.com Phone: 800-334-1083 Fax: 866-261-4779 ©2007 Printed in Italy...

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