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1. COMPONENT LAYOUT net a NE WIRING DIAGRAM 2 1463163000 2 2009 02 Terra 28B SERVICE MANUAL ENGLISH 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 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 All guards and hoods are closed machine is off machine is securely fastened to the means of transport OTHER AVAILABLE MANUALS The following manuals are available at Advance Literature Service Department Terra 28B Spare Parts List Advance Form Number 146 3086 000 Terra 28B User Manual Advance Form Number 146 3081 000 Installation Instruction for BATTERY ASSEMBLY Advance Form Number 1463535000 Terra 28B 1463163000 2 2009 02 3 ENGLISH SERVICE MANUAL GENERA
2. v 9 gt RS 7 Y 5301612 Terra 28 1463163000 2 2009 02 41 6 1463163000 2 2009 02 Terra 28 42 5301614 Install the hood 30 see the procedure the relevant paragraph Remove the hood 30 see the procedure in the relevant paragraph LAMELLAR FUSE CHECK REPLACEMENT Check replace the 7 5 A vacuum system motor lamellar fuse A 1 2 5301613 If necessary check the microswitch A operation and if necessary replace it When the hood 30 is removed press the main switch 1 and check that all machine functions are disabled HOOD SAFETY SWITCH OPERATION CHECK Remove the hood 30 see the procedure in the relevant paragraph ELECTRICAL SYSTEM 1 2 SERVICE MANUAL ENGLISH ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM 5301615 43 1463163000 2 2009 02 Terra 28 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 1 2 3 COMPONENT LAYOUT Key BAT Batteries CH1 Battery charger Function control EB1 Electronic board LED ES1 Relay 1 Main fuse F2 Vacuum
3. 11 SIDE BROOM DISASSEMBLY ASSEMBLY 2 12 MAIN BROOM HEIGHT CHECK AND ADJUSTMENT 13 MAIN BROOM DISASSEMBLY ASSEMBLY 14 MAIN MOTOR TO IDLER GEAR BELT DISASSEMBLY ASSEMBLY FOR MAIN 15 MAIN BROOM BELT DISASSEMBLY ASSEMBLY 16 SIDE BROOM MOTOR ELECTRICAL INPUT CHECK 2 17 SIDE BROOM MOTOR DISASSEMBLY ASSEMBLY 18 19 SKIRT creer erry 20 SKIRT HEIGHT AND OPERATION CHECK 2 20 LEFT SIDE SKIRT DISASSEMBLY ASSEMBLY 21 RIGHT SIDE SKIRT DISASSEMBLY ASSEMBLY 2 22 REAR SKIRT DISASSEMBLY ASSEMBLY 23 FRONT SKIRT DISASSEMBLY ASSEMBLY 23 DUST AND DEBRIS COLLECTION SYSTEM 0 2 0 24 DUST FILTER CLEANING AND INTEGRITY CHECK HOPPER GASKET CHECK 24 FILTER SHAKER OPERATION CHECK 25 VACUUM SYSTEM MOTOR ELECTRICAL INPUT 26 VACUUM SYSTEM MOTOR 5 5 5 27 TROUBLESHOOTING 27 DRIVE SYSTEM 28 DRIVE SYSTEM CONTROL CABLE ADJUSTMENT 28 DRIVING BELT DISASSEMBLY ASSEMBLY
4. 998 39 3 5301584 Terra 28 1463163000 2 2009 02 7 ENGLISH SERVICE MANUAL GENERAL INFORMATION MAINTENANCE The lifespan of the machine and its maximum operating safety are ensured by correct and regular maintenance The following table 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 The following paragraphs give further instructions about maintenance procedures listed in the Scheduled 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 Every 50 Every 200 Every 400 hours hours hours Procedure Battery charger cable check Side and main broom height check and adjustment Skirt height and operation check Dust filter cleaning and integrity check Hopper gasket check Filter shaker operation check Drive belt and wheel clutch visual inspection Drive system belt tensioner adjustment Nut and screw tightening check Motor carbon brush check or r
5. 38 1463163000 2 2009 02 Terra 28 SERVICE MANUAL ENGLISH OTHER SYSTEM SIDE BROOM COVER DISASSEMBLY ASSEMBLY Disassembly 1 Drive the machine a level ground and ensure that it cannot move 2 the main switch 1 to 0 3 Remove the hopper 9 4 Remove the side broom see the procedure in the relevant paragraph 5 Remove the lever A 6 Remove the self locking nut B 7 Unscrew the knob from the plate D 8 Remove the screws E then remove the side broom cover F Assembly 9 Assemble the components in the reverse order of disassembly 5301610 Terra 28 1463163000 2 2009 02 39 ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM ELECTRICAL SYSTEM BATTERY CHARGER CABLE INTEGRITY CHECK Carefully check the battery charger cable 18 and the relevant plug for wear cuts cracks or other damages If damaged Remove the hood 30 see the procedure in the relevant paragraph Replace the cable 18 BATTERY CHARGING 1 Drive the machine to the appointed recharging area and ensure that it cannot move independently 2 the main switch A to 0 3 Remove the battery charger cable from the housing and connect it to the electrical mains WARNING Before connecting the battery charger ensure that frequency Hz and voltage values shown on the machine serial number plate 33 match the ele
6. 8 Green LED anode LDG 12V 4 charged battery plugged charger with charge Terra 28B 1463163000 2 2009 02 45 Nilfisk Advance setting standards Nilfisk Advance Inc 14600 21st Avenue North Plymouth MN 55447 3408 www nilfisk advance com Phone 800 989 2235 Fax 800 989 6566 2008 Nilfisk Advance Inc Plymouth MN 55447 3408 Printed in Italy
7. A along its length is 1 2 2 in 3 5 cm wide e If the print is not within specifications it is necessary to adjust the broom height according to the procedure shown step 2 Turn the main switch 1 to 0 On both sides of the machine loosen the knob B Grasp the support on the points 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 5 Perform step 1 again to check that the main broom is at the correct distance from the ground 6 When the broom is too worn and can no longer be adjusted replace it according to the procedure shown in the relevant paragraph PON CAUTION rN An excessive print larger than 5 cm of the main broom can lead to machine malfunction and overheating of moving and electric parts thus reducing machine life Pay careful attention when performing the above mentioned checks and always use the machine according to the indicated conditions 47 1 2 2 3 cm 5 5301587 Terra 28 1463163000 2 2009 02 13 ENGLISH SERVICE MANUAL SWEEPING SYSTEM MAIN BROOM DISASSEMBLY ASSEMBLY NOTE 0 Brooms of various hardness are available This procedure is applicable to all types of brooms CAUTION It is advisable to use protective gloves when replacing the main broom be
8. did olin innate 29 TROUBLESHOOTING inina 30 31 DRIVING BELT AND CLUTCH VISUAL INSPECTION AND ADJUSTMENT 31 MAIN MOTOR ELECTRICAL INPUT A 32 MAIN MOTOR CARBON BRUSH CHECK AND 33 MAIN MOTOR DISASSEMBLY ASSEMBLY 34 TROUBLESHOOTING 35 24 36 Terra 28 1463163000 2 2009 02 1 ENGLISH SERVICE MANUAL OTHER SY STEMS Siiiwscccsssssnewansechscanasnssninsanassin suns sees aisspansksieauapennnseeitanedssusnpecksaaadniedup inapatsdunvagssoshadunenisksbuseagiucnsuenias NUT AND SCREW TIGHTENING CHECK i cccdsssscscccssvaacancansssncesenaenscaccdaaneccgunnaeacccedusnins caanasaacsiadysnsancaeeuaad i HOOD DISASSEMBLYJASSEMBEY SIDE BROOM COVER DISASSEMBLY ASSEMBLY ELECTRICAL SYSTEM BATTERY CHARGER CABLE INTEGRITY i a BATTERY DI SASSEMBLY ASSEMBLY E HOOD SAFETY SWITCH OPERATION 0 i LAMELLAR FUSE TROUBLESHOOTING
9. B 3 At the workbench remove the screw and separate the right skirt from the straps Assembly 4 Assemble the components in the reverse order of disassembly 5301595 22 1463163000 2 2009 02 Terra 28 SERVICE MANUAL ENGLISH SKIRT REAR SKIRT DISASSEMBLY ASSEMBLY Disassembly 1 Remove the main broom see the procedure the relevant paragraph 2 Remove the dust filter see the procedure in the relevant paragraph 3 Remove the screws A then remove the strap B 4 Remove the rear skirt C Assembly 5 Assemble the components in the reverse order of disassembly 5301596 FRONT SKIRT DISASSEMBLY ASSEMBLY Disassembly 1 Remove the hopper 9 2 At the workbench remove the screws A then remove the strap 3 Remove the front skirt Assembly 4 Assemble the components in the reverse order of disassembly 5301597 Terra 28 1463163000 2 2009 02 23 ENGLISH SERVICE MANUAL DUST AND DEBRIS COLLECTION SYSTEM DUST AND DEBRIS COLLECTION SYSTEM DUST FILTER CLEANING AND INTEGRITY CHECK HOPPER GASKET CHECK Drive the machine on a level ground Turn the main switch 1 to 0 Remove the hopper 9 Unscrew the knobs A Grasp the dust filter B as shown in the figure Remove the dust filter by tur
10. belt D must be removed and the wheel 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 Il and check that the main motor electrical input is e 1 5to2 5Aat 12 V Turn the main switch to 0 and remove the amperometric pliers If the electrical input is higher perform the following procedures to detect the cause and correct the abnormal input e Check the motor carbon brushes see the procedure the relevant paragraph If necessary disassemble the motor see the procedure 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 5301605 32 1463163000 2 2009 02 Terra 28 1 wn SERVICE MANUAL ENGLISH MAIN MOTOR MAIN MOTOR CARBON BRUSH CHECK AND REPLACEMENT Check and replacement Remove the hood see the procedure in the relevant paragraph 1 2 Remove the protections A B C and D bayonet joint of the main motor E 3 Disconnect the connections F 4 Remove four carbon brushes by disengaging the tabs If necessary to remove the carbon brush in the position disconnect the connections F and remove the screws 1 then turn the ma
11. condition Store the machine indoors in a dry place This machine is for dry use only and is not to be used or stored outdoors in wet conditions Before using the machine close all doors and or covers 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 Advance recommended accessories Take all necessary precautions to prevent hair jewelry and loose clothes from being caught by the machine moving parts Do not wash the machine with direct or pressurised water jets or with corrosive substances Do not use compressed air to clean this type of machine While using this machine take care not to cause warm to other people and children especially Do not put any can containing fl uids on the machine The machine storage temperature must be between 0 C and 40 C The machine working temperature must be between 0 C and 40 C The humidity must be between 30 and 95 Do not use the machine as a means of transport Do not use surfaces having a gradient exceeding that marked on the machine Do not allow the brooms to operate while the machine is stationary to avoid damaging the floor In case of fire possibly use a powder fire extinguisher not a water one Do not bump into shelves or scaffoldings especially where there is a risk of falling objects Adjust the operation speed to suit the floor conditions This machine cannot be used on roads or publi
12. cuts or tears which can reduce the machine vacuum capabilities If necessary replace the side skirts see the procedure in the relevant paragraph 4 Check that the front and rear skirts 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 5301593 20 1463163000 2 2009 02 Terra 28 SERVICE MANUAL ENGLISH SKIRT LEFT SIDE SKIRT DISASSEMBLY ASSEMBLY Disassembly Drive the machine on a level ground that is suitable for checking the skirt height Turn the main switch 1 to 0 Completely loosen the handwheels A on the left side of the machine Remove the cover by grasping it on the points At the workbench remove the screws D then remove the skirt assembly with straps Remove the screw F and separate the left skirt G from the straps H Assembly 7 Assemble the components in the reverse order of disassembly 5301594 Terra 28 1463163000 2 2009 02 21 ENGLISH SERVICE MANUAL SKIRT RIGHT SIDE SKIRT DISASSEMBLY ASSEMBLY Disassembly 1 Remove the main broom see the procedure the relevant paragraph 2 Remove the screws A then remove the right skirt assembly with straps
13. it 3 Remove the retaining ring and the washers D then remove the right wheel 4 Move by hand and disengage the belt F from the pulley 5 Loosen the adjusting nut of the wheel clutch 1 6 Remove the washer J When reassembling do not use the old washer replace it with a new one 7 Remove the belt F by routing it between the plate K and the bracket L 8 Check the tensioner M and the spring N for proper operation Assembly 9 Perform steps 4 to 8 in the reverse order 10 Visually inspect and adjust the driving belts and wheel clutch see the procedure in the relevant paragraph 11 Perform steps 1 to 3 in the reverse order 5301603 Terra 28 1463163000 2 2009 02 29 ENGLISH SERVICE MANUAL DRIVE SYSTEM TROUBLESHOOTING OPEN CIRCUIT The circuit breaker 21 determines the open circuit This system prevents the main motor from being damaged in case of breakdown In case of open circuit possible causes are 1 gt There are bulky debris or cords around the wheel hubs remove the debris 2 floor gradient is excessive change direction 3 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
14. materials clogging the vacuum fan remove the motor and the vacuum fan 3 The vacuum system motor is faulty repair replace THE FILTER SHAKER DOES NOT WORK Possible causes 1 filter shaker terminals are damaged replace the filter shaker Terra 28B 1463163000 2 2009 02 27 ENGLISH SERVICE MANUAL DRIVE SYSTEM DRIVE SYSTEM DRIVE SYSTEM CONTROL CABLE ADJUSTMENT Drive the machine on a level ground Turn the main switch 1 to 0 Loosen the nuts A then adjust the drive system control cable B with the adjuster C When the adjustment is completed 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 the hood see the procedure in the relevant paragraph 5301602 28 1463163000 2 2009 02 Terra 28 1 2 3 SERVICE MANUAL ENGLISH DRIVE SYSTEM DRIVING BELT DISASSEMBLY ASSEMBLY Disassembly 1 Remove the hood see the procedure in the relevant paragraph 2 Place a suitable shim B under the machine frame area A in order to keep the right wheel C lifted and remove
15. to be an manufacturer authorized dealer or provider please check our web site for authorized manufacturers we represent Terra 28B SERVICE MANUAL Advance model 908 4702 010 Advance SERVICE MANUAL ENGLISH GENERAL INFORMATION shounsnaGsau duchess bsaasapile cunstivesddnisuppesvanaennpeuenasen 3 CONVENTIONS 3 20 3 MACHINE TRANSPOR 3 OTHER AVAILABLE MANUALS aa 3 5 4 GENERAL INSTRUC TIONS 5 4 TECHNICAL 6 DIMENSIONS gt lt 7 8 SCHEDULED 8 MACHINE NOMENCLATURE 2 9 SWEEPING SYSTEM anu nvvasadsunsusishekbaidunptncunsnesndunatnapsas asensnseesees 11 SIDE BROOM HEIGHT CHECK AND 5
16. 85 Terra 28 1463163000 2 2009 02 11 PON ENGLISH SERVICE MANUAL SWEEPING SYSTEM SIDE BROOM DISASSEMBLY ASSEMBLY NOTE Brooms of various hardness are available This procedure is applicable to all types of brooms CAUTION A N It is advisable to use protective gloves when replacing the side brooms because there be sharp debris between the bristles Disassembly 1 Drive the machine a level ground 2 the main switch 1 to 0 3 Lift the side broom 4 Loosen the knob A inside the side broom then remove the broom by disengaging it from the pins Assembly 5 Install the new broom on the machine engaging it on the pins then tighten the knob 6 Adjust the height of the new broom according to the procedure shown in the previous paragraph 5301586 12 1463163000 2 2009 02 Terra 28 SERVICE MANUAL ENGLISH SWEEPING SYSTEM MAIN BROOM HEIGHT CHECK AND ADJUSTMENT NOTE Brooms of various hardness are available This procedure is applicable to all types of brooms 1 Check that the main broom is at the correct distance from the ground according to the following procedure e Drive the machine a level ground e Keep the machine stationary and turn the main broom for a few seconds off the main broom by pressing the switch 1 then move the machine e Check that the main broom print
17. Assembly Perform steps 6 to 11 in the reverse order 12 13 Visually inspect and adjust the driving belts and wheel clutch see the procedure in the relevant paragraph Perform steps 1 to 5 in the reverse order 5301607 34 1463163000 2 2009 02 Terra 28 14 SERVICE MANUAL ENGLISH MAIN MOTOR MAIN MOTOR DISASSEMBLY ASSEMBLY Continues 5301608 Terra 288 1463163000 2 2009 02 35 ENGLISH SERVICE MANUAL MAIN MOTOR TROUBLESHOOTING The circuit breaker 21 determines the open circuit This system prevents the main motor from being damaged in case of breakdown In case of open circuit possible causes are The main broom pressure on the ground is excessive check the broom height There are bulky debris or cords around the wheel 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 TURN Possible causes 1 driving belts are misadjusted or broken adjust replace See also the Troubleshooting of the following systems Sweeping system Drive system 36 1463163000 2 2009 02
18. Electronic Service Manuals This electronic document is provided as a service to our customers We do not create the contents of the information contained in this docu ment Should you have detailed questions pertaining to the information contained in this document you may contact Michco or the manufac turer which provided the original information in this electronic deliver able Michco s only part in this electronic deliverable was the electronic assembly process By providing this manual on line we are not guaran teeing parts availability You may contact Michco through the following methods Phone 517 484 9312 or 800 331 3339 2011 N High St Lansing Michigan 48906 Fax 517 484 9836 Email CustServe Michco com Web site www Michco Com Parts Web site www FloorMachineParts Com Order Parts on Line at www FloorMachineParts Com Directly to Parts amp Service By Email Shop Michco com By Fax 517 702 2041 By Voice Use numbers above Serving the Cleaning Industry Since 1922 Notice All copyrighted material remains property of original owners all trademarks are property of respective owners Manuals are subject to Manufacturer s reproduction limitations Originals or reproductions were provided by manufacturers through a request We make no warranty as to the correctness of information provided in this document and you assume all risk By placing these manuals on line we are not declaring our corporation
19. L INFORMATION 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 indicates a potential risk of injury for people paragraphs marked by this symbol NOTE It indicates the necessity to refer to the User Manual before performing any procedure CONSULTATION It indicates that it is necessary to consult the User Manual before performing any procedure CAUTION It indicates caution a remark related to important or useful functions Pay particular attention to the GENERAL SAFETY PRECAUTIONS Specific warnings and cautions to inform about potential damages to people and machine are shown below DANGER AN Before performing maintenance repair procedure on electrical components disconnect the battery negative terminal machine is only to be used by persons who have been adeguately instructed Children or disabled people cannot use this machine Do not wear jewelry when working near electrical components Keep the battery away from sparks flames and incandescent material not work under the lifted machine without supporting it with safety stands Do not operate the machine near toxic dangerous flammable and or explosive powders liquids vapours This machine is no
20. TION SYSTEM FILTER SHAKER OPERATION CHECK 1 Drive the machine on a level ground 2 the main switch 1 to 0 3 Remove the hopper 9 4 5 6 Check the filter shaker terminals A for integrity and contact with the dust filter B Activate the filter shaker knob and check that the terminals A shake the dust filter correctly Install the hopper 9 0 5301599 Terra 28 1463163000 2 2009 02 25 ENGLISH SERVICE MANUAL DUST AND DEBRIS COLLECTION SYSTEM VACUUM SYSTEM MOTOR ELECTRICAL INPUT CHECK WARNING This procedure must be performed by qualified personnel only Remove the hood see the procedure in the relevant paragraph WARNING Pay attention to the broom rotation while performing the following steps Apply the amperometric pliers A one cable of the vacuum system motor Grasp the handlebar 6 and lift the front part of the machine in order to lift the brooms from the ground then turn the main switch 1 to or Il and check that the vacuum system motor electrical input is 4to5Aat 12 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 e Check the motor carbon brushes see the procedure the relevant paragraph If necessary disasse
21. Terra 28 SERVICE MANUAL ENGLISH OTHER SYSTEM OTHER SYSTEM NUT AND SCREW TIGHTENING CHECK Remove the side broom cover see the procedure in the relevant paragraph Remove the hood see the procedure in the relevant paragraph then disconnect the negative connector of the battery 22 Check for e Tightening of mounting screws and nuts e Correct position of the fasteners e 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 Terra 28B 1463163000 2 2009 02 37 1 2 3 ENGLISH SERVICE MANUAL OTHER SYSTEM HOOD DISASSEMBLY ASSEMBLY Disassembly 1 Drive the machine a level ground and ensure that it cannot move 2 the main switch 1 to 0 3 Remove the hopper 9 4 Unscrew the knobs and remove the relevant screws 5 Remove the handlebar C from the tubular shafts D and lay it on the ground 6 Remove the mounting screws E of the hood F 7 the hood F and lay it on the ground 8 If necessary disconnect the connectors mark their positions to reinstall them correctly then disconnect the connector and remove the hood Assembly 9 Assemble the components in the reverse order of disassembly 5301609
22. 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 wheel clutch is misadjusted or broken adjust replace 30 1463163000 2 2009 02 Terra 28B SERVICE MANUAL ENGLISH MAIN MOTOR MAIN MOTOR DRIVING BELT AND WHEEL CLUTCH VISUAL INSPECTION AND ADJUSTMENT Remove the hood see the procedure in the relevant paragraph Place a suitable shim B under the machine frame area A in order to keep the right wheel C lifted and remove it Remove the retaining ring and the washers D then remove the right wheel C Check the driving belts E F and G for integrity tears cracks or breaks along their whole length To see the lower part of the belt G move the belt E with the hand If necessary replace them see the procedure in the relevant paragraph Check the tensioners and 1 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 perimeter surface M of the wheel clutch O for integrity and efficiency I
23. c streets Do not remove or modify the plates affixed to the machine Do not tamper with the machine safety guards and follow the ordinary maintenance instructions scrupulously Only use brushes provided with the machine or those specified in the instruction manual The use of other brushes may impair safety In case of machine malfunctions ensure that these are not due to lack of maintenance Otherwise request assistance from the authorised personnel or from an authorised Service Center To ensure machine proper and safe operation perform the scheduled maintenance shown in the relevant chapter of this Manual If parts must be replaced require ORIGINAL spare parts from a Dealer or Authorised Retailer The machine must be disposed of properly because of the presence of toxic harmful materials batteries plastics etc which are subject to standards that require disposal in special centers see Scrapping chapter in the User Manual Terra 28B 1463163000 2 2009 02 5 Values 19 7 500 mm 28 3 in 720 mm 39 3 x 31 4 x 19 7 in 998 x 797 x 501 mm 1 0 in 25 mm 7 9 x 19 7 in 200 x 500 mm 12 4 in 315 mm 335 rpm 100 rpm 2 15 8 US gal 60 litres 167 5 76 kg 3 0 x 1 3 in 75 x 32 mm 11 8 x 1 8 in 300 x 45 mm 2 3 miles h 3 7 km h 59 3 3 dB A 78 dB A lt 98 4 in s lt 2 5 m s Values 12V GEL 12 V 80 Ah 6A 200 W 1 500 rpm 40 W 50 W Values 5 10 poly
24. cause there sharp debris between the bristles Drive the machine on a level ground Turn the main switch 1 to 0 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 1 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 5 CON AN 5 5301588 14 1463163000 2 2009 02 Terra 28 SERVICE MANUAL ENGLISH SWEEPING SYSTEM MAIN MOTOR TO IDLER GEAR BELT DISASSEMBLY ASSEMBLY FOR MAIN BROOM Disassembly 1 Remove the hood see the procedure in the relevant paragraph 2 Loosen the nut A and move away the wheel clutch from the crankshaft 3 Manually disengage the belt from the pulley D 4 Remove four screws then remove the idler gear assembly F and the belt by disengaging it from the pulley I Assembly 5 Perform steps 2 to 4 in the reverse order 6 Visually inspect and adjust the driving belts and wheel clutch see the procedure in the r
25. ctrical mains voltage 4 While charging the batteries the red warning light and the yellow warning light turn on in sequence When the green warning light F turns on the batteries are charged 5 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 electrical mains all machine functions are automatically disabled 5301611 40 1463163000 2 2009 02 Terra 28 SERVICE MANUAL ENGLISH ELECTRICAL SYSTEM BATTERY DISASSEMBLY ASSEMBLY Disassembly Remove the hood 30 see the procedure in the relevant paragraph Disconnect the connections A and B of the battery C Open the battery retaining belt D If necessary loosen the screws F and move the battery holding brackets H against the edges I and J Remove the battery C 1 2 3 4 5 Assembly WARNING If a new battery is to be installed refer to Technical Data chapter to check which types of batteries be installed on this machine Assemble the components in the reverse order of disassembly and note the following e Place the battery against the edges 1 and J then bring the brackets and against the battery and tighten the screws F If necessary when installing a bigger battery use the holes and L to hold the battery with the brackets H with the screws F
26. elevant paragraph 7 Install the hood see the procedure the relevant paragraph NING gs ONG af 5301589 Terra 28 1463163000 2 2009 02 15 ENGLISH SERVICE MANUAL SWEEPING SYSTEM MAIN BROOM BELT DISASSEMBLY ASSEMBLY Disassembly Remove the hood see the procedure in the relevant paragraph Remove the main broom see the procedure in the relevant paragraph Manually disengage the belt A from the pulley B Remove the screws then remove the right lid and the main broom belt At the workbench remove the screws and the skirt E then remove the main broom belt F Check the tensioner G and the spring H for proper operation Assembly 7 Perform steps 3 to 5 in the reverse order 8 Visually inspect and adjust the driving belts and wheel clutch see the procedure the relevant paragraph 9 Install the main broom see the procedure the relevant paragraph 10 Install the hood see the procedure in the relevant paragraph oO i gt 6 N 9 6 8301590 16 1463163000 2 2009 02 Terra 28 SERVICE MANUAL ENGLISH SWEEPING SYSTEM SIDE BROOM MOTOR ELECTRICAL INPUT CHECK WARNING This procedure must be performed by qualified personnel only 1 Remove the side broom cover see the procedure in the rele
27. elevant paragraph then disconnect the negative connector of the battery Loosen the threaded dowel A Remove the side broom hub Disconnect the connector C of the side broom motor E Remove the screws D Remove the side broom motor 1463163000 2 2009 02 1 2 22 3 4 5 6 7 Assembly 8 18 SERVICE MANUAL ENGLISH SWEEPING SYSTEM TROUBLESHOOTING OPEN CIRCUIT The circuit breakers 20 and 21 determines the open circuit This system prevents the main motor and broom motor circuits from being damaged in case of overload In case of open circuit possible causes are Main motor for main broom The circuit breaker 21 determines the open circuit Possible causes 1 There are bulky debris or cords around the broom or between the broom and its flange remove the debris 2 broom pressure on the ground is excessive check the broom height 3 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 Side broom motor The circuit breaker 20 determines the open circuit Possible causes 1 There are bulky debris or cords around the broom or between the broom and its flange remove the debris 2 broom pressure on the ground is excessive check the broom height 3 side broom motor electrical input is too high check the elect
28. eplacement 1 And after the first 8 hours 8 1463163000 2 2009 02 Terra 28B ENGLISH SERVICE MANUAL GENERAL INFORMATION 1463163000 2 2009 02 Terra 28B MACHINE NOMENCLATURE Throughout this manual you will find numbers in brackets for example 2 These numbers refer to the components shown in these two nomenclature pages Refer to these pages whenever it is necessary to identify a component mentioned in the text Main switch for vacuum system main broom and side broom activation Charged battery warning light green Semi discharged battery warning light yellow Discharged battery warning light red Drive control lever Handlebar Handlebar adjusting knobs Filter shaker knob Hopper Front steering wheel Side broom Side 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 fuse 7 5 A Hood Hopper upper handle Hopper lower handles Serial number plate technical data conformity certification Side skirts Front skirt Rear skirt Side broom cover Dr
29. ester 10 8 2 1 m 0 47 in H O 12 mm H O ENGLISH SERVICE MANUAL GENERAL INFORMATION TECHNICAL DATA General Cleaning width without side broom Cleaning width with side broom Machine size with folded handlebar and without side broom length x width x height Minimum distance from the ground skirts not included Main broom size diameter x length Side broom diameter Main broom speed Side broom speed Gradeability Hopper capacity Total machine weight with standard battery Front steering wheel size diameter x length Rear wheel size diameter x length Maximum drive speed Sound pressure level at workstation ISO 11201 ISO 4871 LpA Machine output acoustic power ISO 3744 ISO 4871 LWA Vibration level at the operator s arms ISO 5349 1 Under normal working conditions on a level asphalt surface Electrical components Electrical system voltage Standard battery Battery charger Main motor Side broom motor Vacuum system motor Dust vacuuming and filtering Dust filter Dust filter surface Main broom compartment vacuum 6 1463163000 2 2009 02 Terra 28B SERVICE MANUAL ENGLISH GENERAL INFORMATION DIMENSIONS N ee 797 31 4 501 19 7
30. f necessary replace the wheel clutch O see the procedure in the relevant paragraph If necessary loosen the nut N and adjust the pressure of the wheel clutch O on the shaft P by pushing the lever Q in order to align one of the holes R with the support slot U For this operation use a drill of 0 21 in 5 5 mm With an integral wheel clutch O or not worned it is suggested the alignment with the 3rd hole R When the adjustment is completed tighten the nut N Perform steps 1 to 3 in the reverse order 5301604 Terra 28 1463163000 2 2009 02 31 1 2 3 4 ENGLISH SERVICE MANUAL MAIN MOTOR MAIN MOTOR ELECTRICAL INPUT CHECK WARNING This procedure must be performed by qualified personnel only Remove the hood see the procedure in the relevant paragraph WARNING Pay attention to the broom rotation while performing the following steps Apply the amperometric pliers A one cable of the main motor Grasp the handlebar 6 and lift the front part of the machine in order to lift the brooms from the ground then turn the main switch 1 to I or II and check that the main motor electrical input is e 13 12 V Turn the main switch to 0 and lower the front part of the machine If the electrical input is higher and it is necessary to check the electrical input by cutting out the broom transmission mechanisms the driving
31. fan fuse F3 Side broom fuse M1 Main motor M2 Vacuum system motor M3 Side broom motor Swi Main switch 2 Hopper microswitch Colour code Black Blue Brown Green Grey Orange Pink Red Violet White Yellow The battery charger cable has also the function of checking the battery charge and the machine ignition 5301616 BU BN GN GY OG PK RD VT WH YE ENGLISH SERVICE MANUAL ELECTRICAL SYSTEM WIRING DIAGRAM Key BAT Batteries CH1 Battery charger Function control EB1 Electronic board LED ES1 Relay 1 6 F2 Vacuum fan fuse F3 Side broom fuse M1 Main motor M2 Vacuum system motor M3 Side broom motor 5 1 Main switch 2 Hopper microswitch 44 1463163000 2 2009 02 SERVICE MANUAL ENGLISH CHARGER CH1 CONNECTOR PINOUT J1 model MOLEX MINIFIT 8 ways PIN Description in out V ref Condition 1 Input from SW1 in 12V SW1 or Il 2 SW1 power out 12V always 3 LED common cathode out OV always 4 not connected 5 Output to ES1 out OV SW1 I Il and charged battery 6 Red LED anode LDR 12V SW1 on Il and discharged battery or plugged charger or II charge phase 7 Yellow LED anode LDY ut 12V SW1 on Il and nearly discharged battery or plugged charger in 111 charge phase
32. in motor E as necessary 5 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 brushes Replace the carbon brushes as an assembly Reset 6 Assemble the components in the reverse order of disassembly 5301606 Terra 28B 1463163000 2 2009 02 33 ENGLISH SERVICE MANUAL MAIN MOTOR MAIN MOTOR DISASSEMBLY ASSEMBLY Disassembly Remove the hood see the procedure in the relevant paragraph Remove the battery see the procedure in the relevant paragraph Disconnect the connections A and B of the main motor C Place a suitable shim E under the machine frame area D in order to keep the right wheel F lifted and remove it Remove the retaining ring and the washers G then remove the right wheel F Loosen the nut and move away the wheel clutch 1 from the shaft J Move the belt K by hand and disengage the belt L from the pulley M Disengage the belt from the pulley 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 9 10 11
33. ive system control cable adjuster 1463163000 2 2009 02 Terra 28 10 5301584 GENERAL INFORMATION SERVICE MANUAL ENGLISH SERVICE MANUAL ENGLISH SWEEPING SYSTEM SWEEPING SYSTEM SIDE BROOM HEIGHT CHECK AND ADJUSTMENT NOTE Brooms of various hardness available This procedure is applicable to all types of brooms Check that the side broom is at the correct distance from the ground according to the following procedure Drive the machine on a level ground and lower the side broom Keep the machine stationary and turn on the side broom for a few seconds Turn off the side broom by pressing the switch 1 then 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 or counter clockwise to adjust the broom height up or down 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 82 10 1 3 53015
34. mble the vacuum system motor see the procedure 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 5301600 26 1463163000 2 2009 02 Terra 28 1 wn SERVICE MANUAL ENGLISH DUST AND DEBRIS COLLECTION SYSTEM VACUUM SYSTEM MOTOR DISASSEMBLY ASSEMBLY Disassembly Remove the dust filter as shown in the User Manual Remove the hood see the procedure in the relevant paragraph Remove the battery see the procedure in the relevant paragraph Disconnect the vacuum fan connector A Disconnect the cables B from the connector C Remove the vacuum fan mounting screws D Remove the motor and the vacuum fan E then remove the wiring harness F from the grommet G gt Assembly 8 Assemble the components in the reverse order of disassembly 5301601 TROUBLESHOOTING POOR OPERATION OF THE VACUUM FAN Possible causes 1 dust filter is clogged clean 2 vacuum fan blades are broken worn replace the motor and the vacuum fan 3 hopper gaskets are worn replace THE VACUUM FAN DOES NOT OPERATE Possible causes 1 There is an open the circuit breaker 29 replace 2 There are foreign
35. ning it in the direction shown by the arrow C to disengage it from the pins D then lower the filter to disengage it from the filter shaker combs E Remove the filter F from the frame G by disengaging the rubber bands C In an appropriate outdoor area clean the filter by shaking it on a level and clean surface tapping the side 1 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 Check the filter body for tears If necessary replace it For a better cleaning it is allowed to wash the filter with water and non lathering detergents This provides better quality cleaning but reduces the life of the filter which will have to be replaced more frequently The use of inadequate detergents can damage the filter Clean the bearing surface of the filter rubber gasket J and check it for integrity and sealing capabilities If necessary replace the filter Clean the bearing surface of the hopper gasket L and check it for integrity and sealing capabilities If necessary replace it Assemble the components in the reverse order of disassembly NOTE 5 3 10 11 Assemble the filter with the gasket J positioned as shown in the figure 5301598 24 1463163000 2 2009 02 Terra 28 SERVICE MANUAL ENGLISH DUST AND DEBRIS COLLEC
36. rical 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 are worn replace The motor is faulty repair replace The motor driving belts are inefficient or broken replace The wiring harness is damaged repair The relay is faulty replace There is an open in the circuit breaker reset The hopper microswitch does not work adjust replace The main switch is damaged replace 0 The battery charger function control is faulty replace THE SIDE BROOM DOES NOT TURN Possible causes 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 5 5 Terra 28B 1463163000 2 2009 02 19 ENGLISH SERVICE MANUAL SKIRT SKIRT SKIRT HEIGHT AND OPERATION CHECK 1 Drive the machine a level ground that is suitable for checking the skirt height 2 main switch 1 to 0 3 Check that the distance from the ground of the side skirts is 0 to 0 08 in 0 to 2 mm Check the skirts for integrity
37. t suitable for picking up hazardous dust 4 1463163000 2 2009 02 Terra 28B SERVICE MANUAL ENGLISH GENERAL INFORMATION WARNING Carefully read all the instructions before carrying out any maintenance repair procedure Before using the battery charger ensure that frequency and voltage values shown on the machine serial number plate match the electrical mains voltage Do not pull or carry the machine by the battery charger cable and never use the battery charger cable as a handle Do not close a door on the battery charger cable or pull the battery charger cable around sharp edges or corners Do not run the machine on the battery charger cable Keep the battery charger cable away from heated surfaces Do not charge the batteries if the battery charger cable or the plug are damaged If the battery charger cable is damaged replace it To reduce the risk of fire electric shock or injury do not leave the machine unattended when it is plugged in Before performing any maintenance procedure disconnect the battery charger cable from the electrical mains If the machine is not working as it should has been damaged left outdoors or dropped into water return it to Advance Service Center Do not smoke while charging the batteries The machine left unattended are to be secured against unintentional movement Always protect the machine against the sun rain and bad weather both under operation and inactivity
38. vant paragraph WARNING Pay attention to the main broom rotation while performing the following steps 2 Apply the amperometric pliers on one cable of the main broom motor 3 Grasp the handlebar 6 and slightly lift the front part of the machine in order to lift the main broom from the ground then turn the main switch 1 to Il and check that the side broom motor electrical input is e 2to3Aat 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 e Check for debris or cords around the side broom hub If necessary disassemble the motor see the procedure 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 4 Install the side broom cover see the procedure the relevant paragraph 5301591 Terra 28 1463163000 2 2009 02 17 5301592 Assemble components in the reverse order of disassembly Terra 28B SERVICE MANUAL ENGLISH SWEEPING SYSTEM SIDE BROOM MOTOR DISASSEMBLY ASSEMBLY Disassembly Remove the side broom cover see the procedure in the relevant paragraph Remove the hood see the procedure in the r

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