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ELECTRICAL SYSTEM

ENGLISH

SERVICE MANUAL

38

1463165000(1)2007-02

Edge 28B

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.

A

S301613

1.

2.

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Summary of Contents for Edge 28B

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

Page 2: ...ENGLISH SERVICE MANUAL 1463165000 1 2007 02 Edge 28B ...

Page 3: ...ASSEMBLY ASSEMBLY 19 FRONT SKIRT DISASSEMBLY ASSEMBLY 19 DUST AND DEBRIS COLLECTION SYSTEM 20 DUST FILTER CLEANING AND INTEGRITY CHECK HOPPER GASKET CHECK 20 FILTER SHAKER OPERATION CHECK 21 VACUUM SYSTEM MOTOR ELECTRICAL INPUT CHECK 22 VACUUM SYSTEM MOTOR DISASSEMBLY ASSEMBLY 23 TROUBLESHOOTING 23 DRIVE SYSTEM 24 DRIVE SYSTEM CONTROL CABLE ADJUSTMENT 24 DRIVING BELT DISASSEMBLY ASSEMBLY 25 TROUBL...

Page 4: ...ature 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 Always read this information carefully and take all necessary precautions to safeguard people and property DANGER It indicates a dangerous situation with risk of death for the operator WARNING It i...

Page 5: ... 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 Do not leave the machine unattended if the main switch is not turned to 0 and without being sure that it cannot move independently Do not wash...

Page 6: ...eed 335 rpm Side broom speed 100 rpm Gradeability 2 Hopper capacity 15 8 US gal 60 litres Total machine weight with standard battery 150 lb 68 kg Front steering wheel size diameter x length 3 0 x 1 3 in 75 x 32 mm Rear wheel size diameter x length 11 8 x 1 8 in 300 x 45 mm Maximum drive speed 2 3 miles h 3 7 km h Sound pressure level at workstation A Lpa 59 3 dB A Electrical components Values Elec...

Page 7: ...eduled Maintenance Table NOTE To perform maintenance procedures the machine must be off and if necessary the batteries must be disconnected Moreover carefully read the instructions in the Safety paragraph SCHEDULED MAINTENANCE TABLE Procedure Every 10 hours Every 50 hours Every 200 hours Every 400 hours Battery charger cable check Side and main broom height check and adjustment Skirt height and op...

Page 8: ...de broom lifting lowering lever Side broom height adjusting knob Main broom Main broom height adjusting knobs Rear driving wheels Can holder Battery charger cable Battery charger cable housing Side broom motor circuit breaker 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 f...

Page 9: ... lift it and move the machine Check if the size and orientation of the print left by the side broom are as shown in the figure A Fig 1 the side broom must touch the ground along a circle arc ranging from 10 o clock position to 3 o clock position If the print is not within specifications it is necessary to adjust the broom height according to the procedure shown in step 2 Turn the knob 13 clockwise...

Page 10: ... brooms because there can be sharp debris between the bristles Disassembly Drive the machine on a level ground Turn the main switch 1 to 0 Lift the side broom 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...

Page 11: ...dure shown in step 2 Turn the main switch 1 to 0 On both sides of the machine loosen the knob B Grasp the support C on the points D and move it upwards then lift it or lower it to change the main broom height For height variation refer to the indicator E Then tighten the knob B on both sides of the machine Perform step 1 again to check that the main broom is at the correct distance from the ground...

Page 12: ...Remove the hopper 9 Completely loosen the handwheels A on the left side of the machine Remove the lid B by grasping it on the points C Grasp the main broom D on the points E and F then disconnect it from the drive hub G by pulling it in the direction shown by the arrow H then remove it in the direction shown by the arrow I Install the new main broom with the bristles rows D bent as shown in the fi...

Page 13: ...he clutch B from the crankshaft H Manually disengage the belt C from the pulley D Remove four screws E then remove the idler gear assembly F and the belt G by disengaging it from the pulley I 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 parag...

Page 14: ...move the right lid D and the main broom belt At the workbench remove the screws I and the skirt E then remove the main broom belt F Check the tensioner G and the spring H for proper operation Assembly Perform steps 3 to 5 in the reverse order 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...

Page 15: ... then turn the main switch 1 to II and check that the side broom motor electrical input is 2 to 3 A at 12 V Turn the main switch to 0 and lower the front part of the machine Remove the amperometric pliers If the electrical input is higher perform the following procedures to detect the cause and correct the abnormal input Check for debris or cords around the side broom hub If necessary disassemble ...

Page 16: ...aragraph Remove the hood see the procedure in the relevant paragraph then disconnect the negative connector of the battery 22 Loosen the threaded dowel A 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 E D A B C S301592 1 2 3 4 5 6 7 8 ...

Page 17: ...ris The broom pressure on the ground is excessive check the broom height The side broom motor electrical input is too high check the electrical input Wait at least 2 minutes after the open circuit After repairing press the circuit breaker button 20 THE MAIN BROOM DOES NOT TURN Possible causes The battery voltage is too low the warning light 4 is on charge the battery The main motor carbon brushes ...

Page 18: ...r integrity cuts or tears which can reduce the machine vacuum capabilities If necessary replace the side skirts see the procedure in the relevant paragraph 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...

Page 19: ...he main switch 1 to 0 Completely loosen the handwheels A on the left side of the machine Remove the cover B by grasping it on the points C 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 A B C F E D H G H D F B S301594 1 2 3 4 5 6...

Page 20: ...ve the main broom see the procedure in the relevant paragraph 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 C E D E C B A A S301595 1 2 3 4 ...

Page 21: ...levant paragraph Remove the screws A then remove the strap B Remove the rear skirt C Assembly Assemble the components in the reverse order of disassembly A A C B 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 A B A C S3...

Page 22: ...el and clean surface tapping the side I opposite to the gasket J Complete the cleaning procedure by using compressed air K at maximum 87 psi 6 Bars blowing only from the side of the gasket J at a minimum distance of 12 in 30 cm Do not use water or detergents to clean it otherwise it can be damaged Check the filter body for tears If necessary replace it Clean the bearing surface of the filter rubbe...

Page 23: ...ECK Drive the machine on a level ground Turn the main switch 1 to 0 Remove the hopper 9 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 A B C S301599 1 2 3 4 5 6 ...

Page 24: ...switch 1 to I or II and check that the vacuum system motor electrical input is 4 to 5 A at 12 V Turn the main switch to 0 and lower the front part of the machine Remove the amperometric pliers If the electrical input is higher perform the following procedures to detect the cause and correct the abnormal input Check the motor carbon brushes see the procedure in the relevant paragraph If necessary d...

Page 25: ...ss F from the grommet G Assembly Assemble the components in the reverse order of disassembly E D D G B A F B C S301601 TROUBLESHOOTING POOR OPERATION OF THE VACUUM FAN Possible causes The dust filter is clogged clean The vacuum fan blades are broken worn replace the motor and the vacuum fan The hopper gaskets are worn replace THE VACUUM FAN DOES NOT OPERATE Possible causes There is an open in the ...

Page 26: ...tighten the nuts A If it is not possible to obtain the proper adjustment adjust the control cable on the adjuster D according to the following procedure Remove the hood see the procedure in the relevant paragraph 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 ...

Page 27: ...lt E by hand and disengage the belt F from the pulley G Loosen the adjusting nut H of the clutch I Remove the washer J When reassembling do not use the old washer replace it with a new one Remove the belt F by routing it between the plate K and the bracket L 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 th...

Page 28: ...The floor gradient is excessive change direction The main motor electrical input is too high check the electrical input Wait at least 2 minutes after the open circuit After repairing press the circuit breaker button 21 THE MACHINE DOES NOT MOVE Possible causes The drive system control cable is misadjusted or broken adjust replace The driving belt is misadjusted or broken adjust replace The main mo...

Page 29: ...and springs J and K for efficiency The tension of the belt E is slightly adjustable by using the slots S on the mounting screws T of the idler gear assembly U The tension of the belt G is slightly adjustable by using second hole L for anchoring the spring K The tension of the belt F can be adjusted by using the drive system control cable see the procedure in the relevant paragraph Check the whole ...

Page 30: ...the electrical input by cutting out the broom transmission mechanisms the driving belt D must be removed and the clutch E must be disengaged from the crankshaft F see the procedure in the relevant paragraph then turn the main switch 1 to I or II and check that the main motor electrical input is 1 5 to 2 5 A at 12 V Turn the main switch to 0 and remove the amperometric pliers If the electrical inpu...

Page 31: ... to remove the carbon brush in the position C disconnect the connections F and remove the screws I then turn the main motor E as necessary Check the carbon brushes for wear Replace the carbon brushes when the contact with the motor armature is insufficient the carbon brushes are worn the carbon brush contact surface is not integral the thrust spring is broken etc If necessary replace the carbon br...

Page 32: ...ght wheel F Loosen the nut H and move away the clutch I from the shaft J Move the belt K by hand and disengage the belt L from the pulley M Disengage the belt N from the pulley O Remove four screws P then remove the holder Q and the belt K by disengaging it from the pulley R Remove the retaining ring S and the pulley T then recover the key U Remove the screw V then remove the main motor W Assembly...

Page 33: ...MAIN MOTOR SERVICE MANUAL ENGLISH Edge 28B 1463165000 1 2007 02 31 MAIN MOTOR DISASSEMBLY ASSEMBLY Continues W U V V T S S301608 ...

Page 34: ...heel hubs remove the debris There are bulky debris or cords around the broom or between the broom and its flange remove the debris The floor gradient is excessive change direction The main motor electrical input is too high check the electrical input 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 ...

Page 35: ...edure in the relevant paragraph then disconnect the negative connector of the battery 22 Check for Tightening of mounting screws and nuts Correct position of the fasteners 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 1 2 3 4...

Page 36: ... the relevant screws B Remove the handlebar C from the tubular shafts D and lay it on the ground Remove the mounting screws E of the hood F 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 I H G ...

Page 37: ...nnot move Turn the main switch 1 to 0 Remove the hopper 9 Remove the side broom see the procedure in the relevant paragraph 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 F E B E E D E A C F S301610 1 2 3 4 5 6 7 8 9 ...

Page 38: ...battery charger cable B from the housing C and connect it to the electrical mains WARNING Before connecting the battery charger B ensure that frequency Hz and voltage V values shown on the machine serial number plate 33 match the electrical mains voltage While charging the batteries the red warning light D and the yellow warning light E turn on in sequence When the green warning light F turns on t...

Page 39: ...nd J Remove the battery C Assembly WARNING If a new battery is to be installed refer to Technical Data chapter to check which types of batteries can be installed on this machine Assemble the components in the reverse order of disassembly and note the following 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 necessa...

Page 40: ...AFETY 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 A S301613 1 2 ...

Page 41: ...3165000 1 2007 02 39 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 A S301614 1 2 3 ...

Page 42: ...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 1 2 3 ...

Page 43: ...UT Key BAT Batteries CH1 Battery charger Function control EB1 Electronic board LED ES1 Relay F1 Main fuse F2 Vacuum fan fuse F3 Side broom fuse M1 Main motor M2 Vacuum system motor M3 Side broom motor SW1 Main switch SW2 Hopper microswitch SW1 EB1 W2 S F1 F2 M3 F3 ES1 CH1 BAT M1 M2 S301615 ...

Page 44: ...r M3 Side broom motor SW1 Main switch SW2 Hopper microswitch Colour code BK Black BU Blue BN Brown GN Green GY Grey OG Orange PK Pink RD Red VT Violet WH White YE Yellow WIRING DIAGRAM The battery charger cable has also the function of checking the battery charge and the machine ignition BAT F1 M1 M2 ES1 CH1 F2 EB1 J1 1 RD RD OG GY BN RD BK BK BK BK WH VT SW2 OG J1 2 J1 3 J1 4 J1 5 J1 6 J1 7 J1 8 ...

Page 45: ...ELECTRICAL SYSTEM SERVICE MANUAL ENGLISH Edge 28B 1463165000 1 2007 02 43 ...

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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