EXE User Manual iss03 new logo
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1. 11 LOT 1 noua s uod OWN 3H 2221 Ape isn Hina 09 5105 5 amp 3 ULM ung Pd Disita oi 318 AYN OAUOS 438 Apa pawinbas aq AEU uid Joop sry d8 OL HSfid puo4 sapaa awos ULES X2E H 1571 ji Ex XO ACOH 10544035 Luda SSRI 0 JAS FAILSAFE BASIC JEDLA uc apis YES ypas SH STA Sn 106p ayaa ae SIN DAUGS 28 uL dig ld dum c IFFT SSH Hd 5 1224 ayege TY 6 i 4 eG iu SUM erg Lin POS A glg esn4 dol 9 PEST A INO _ AC qa vaNvLS 349 134 12 Lanes dde g ld IP FAT LUGO Jed NOUS OL 4116 Lage Apa 04 38 Tam eds da 5 cda r3 imn T LEE Rp aas ALEI JOU aur dis Hagas uid Joop EE UI SO Gb t as LN Snog 59218 ang 934 UES 42618 Tum AM E 7 SSINHYH Las qawas Joop wy SHA2. FE xog OL uet e Acie me cer ploy auos un atn Jai TOdLNOo Uc aps LIEB JTS 2935541605 3 4 s JOOP 01 wwa ALON SIN OAUOS 426A FULLY AUTOMATIC BASIC 1461 HEwD 7 ro 10 46 30731 dO 1 ATINA Ul SLIOTIAOHIDIO 7 ON 5 uenia A ING a Due E AZL _ 429 9 UED 2 an 16 1 ATINA AV 133 Page 13 FULLY AUTOMATIC WITH SENSITIVE EDGE ELFAZREL SEIU000 p BE T IW SIMILIA oo es OL 4215 HO JA EXE ELI LESE bck C ae SOT Hd ACTH Al HALLS Nels sinag SN UAR ees quf 7771714 Je 16 pee a VIN J amp 277414 ajnioAuoos vast PARDA aq uid Joop Ml HSMd Wo sapiyan 9405 uc apis C WOI pea 28 8 rey UW 5 ou ar ue PAW 529 ni aaps c Bey s pajoeuunms SpA als SIP GAUCe HOB x Tu Bi ate i pueu 4 10 I ajdind Haap 09 LON Oly ATL Suonaauuo o HET J ON aL eng a
3. iea l I Page 7 Test 5 At the unplugged step loom plug at the back of the step unit or inside vehicle BA type steps apply a 12v supply across the two power pins see diag below If the step remains dead it is likely that the motor has failed Check first that the leads from the plug to the motor are OK particularly within the step unit if OK then the motor has failed and will require replacing If the motor starts to buzz but the step does not move reverse the polarity across the power pins and see if the step then closes If the step can be deployed and stowed by applying the direct 12v supply across the power pins reversing it to change the step direction the fault lies either in the control unit rocker switch fail safe or in the vehicle loom Go to test 6 Test 6 Fail safe only First check the wire terminal connections of the blue wires to the rocker switch If they appear to be OK unplug the two blue wires or blue and blue white wires from the rocker switch and with a piece of wire connect them together If the step closes then there is a fault with the switch and it will have to be replaced If the step still does not close Do a thorough check on the multi plug connectors to the control unit if these are in order it is likely that the control unit has failed Diag 1 unction View of pins in ower to motor plug from step tow m switch eploy m switch Power to motor M switch common retu
4. Deploy time 3 seconds Stow time 3 seconds Tread width 600 750 amp 1000mm Tread depth 300mm 12 Deploy reach 250mm 10 Tested to 250Kg 550Lbs SWL 150 Kg 300Lbs Weight 26Kg 5716 600mm step only TYPICAL USES Sliding side door entrances Minibuses Ambulances Utility vehicles School buses OPTIONS Widths 600 750 1000mm Fully auto operation simply swap the control box and switch to change to fully automatic oper ation on the door This is a no cost option when ordered with the step CERTIFICATION Cycle test Dirt Ingress Test Dirt Compaction Test EMC Test INSTALLATION Easily mounts to the vehicle cill or step box section support at front and to chassis member at rear Full fitting instructions and wiring plans On line assistance if required Fitting kit options include Mercedes Sprinter VW LT and Crafter Freightliner and Dodge Sprinter Universal kits will fit most other vehicles Unique serial number making all AVS step fully traceable Individual service pack and maintenance record SPECIAL OPTIONS Touch sensitive edge stops power to motor on encountering any obstruction Automatic operation on the door Page 1 SEES AVS STEPS As specified on all steps for Mercedes Benz the EX 1 fitted with a bright yellow sensitive edge that Stop the step if it make contact with any obstruction The step operation is reset by simply pressing or releasing the switch in the
5. cab The EX 1 very reliable and sensitive at the same Time Sensitive edge Strip is an option on all EX Page 2 EX SERIES 600 750 1000 1200 Electric Cassette Steps STEP DIMENSIONS EXE600 690mm EXE750 840mm EXE1000 1090mm 472mm 66mm EXE600 600mm 750 750mm EXE1000 1000mm Model Shown EXE1000HZSE 1 3 OPERATING INSTRUCTIONS STEP TYPE VEHICLE TYPE SIDE ENTRANCE COUNTRY In Rocker switch Out OFF On Off switch ON AVS Electric steps Last Updated 09 07 06 Revision no 0 Operating AVS Electric Steps There are 2 main types of electric step operation 1 FAIL SAFE The step opens deploys and closes Stows using a rocker switch usually mounted near the driver with an AVS aluminium coloured bezel Sometimes there is a switch near the door and sometime in both places By pressing the switch one way the step will deploy and a red light will flash on the dash board By pressing the switch the other way the step will retract and the red light will stop flashing The step will stop automatically at either end of travel If the step is deployed it will stow automatically when A The side door is closed OR B The hand brake s released In other words the step will make its self SAFE if the driver FAILS to stow the step Whether it is side door or hand brake operated depends on the way the coach builder has connected the AVS
6. wiring harness 2 FULLY AUTO The step opens and closes as the nearest door is opened and closed The step can be switched of in the deployed or stowed position by using the on off switch usually mounted on the dash board By switching the step off it will not stow or deploy when the door is opened and closed The red warning light will continue to flash if the step is not stowed even if the on off switch if in the off position You may wish to isolated the step in the open position with the door closed to allow it to be cleaned QRS 1 4 CLEANING INSTRUCTIONS STEP TYPES Last Updated 09 07 06 Version 2 Cleaning AVS Steps Steps should be cleaned at least once per month and more often if conditions dictate By using a power hose or even a standard hose frequently ensure no build up of material inside the step The step will self clean if the mud and dirt is lubricated with a power wash Remember to clean not just the tread the bit you stand on but the side of the step too After cleaning the step should be allowed to dry When dry a day or two later perhaps apply silicone spray to help lubricate the movement of the step DO NOT USE GREASE Avoid use of oil it will simply wash away If the conditions are particularly bad daily cleaning may be required Every 6 months the bottom cover should be removed completely and the inside of the step physically cleaned particularly either side the s
7. EX SERIES 600 750 1000 1200 Electric Cassette Steps Owners Manual EXE600HZ EXE 50HZ EXE1000HZ AVS Marketing Ltd Alders Farmhouse Alders Lane Whixall Whitchurch 1 Shropshire SY13 2PZ Tel 01948 880010 Lurone s Larcpst Specialist Fax 01948 880020 Email Sales avssteps co uk Web www avssteps co uk EX SERIES 600 750 1000 1200 Electric Cassette Steps Contents See pra 9 Ics About Your Step sensitive Edge Option otep dimensions Operating instructions Cleaning Instructions otep Service Routine Fault Finding deployed step Fault Finding deployed step Fault Finding stowed step Fault Finding stowed step Emergency Stow Procedure Wiring diagram Failsafe basic Wiring diagram Fully Automatic Wiring diagram Fully Automatic Sensitive Edge Replacing motor Installing new motor Refitting motor arm Setting micro switches Fault finding step motor Spare Parts List Exploded Diagram Parts list Declaration of conformity AVS Benchmark test Weight applied AVS Benchmark test Dirt compaction AVS Benchmark test Repeat cycles For your notes About your step DESCRIPTION Electrically operated slide in slide out cassette step providing safe access to passenger vehicles by halving entrance step heights Quiet powerful smooth easy action Operated by the driver attendant or automatically on the door See options Closes aut
8. EXEG00HZ Full Tread Assembly for EXE750HZ Full Tread Assembly for EXE1000HZ Weatherproofing seal for EXEG00HZ Includes replacement screws Weatherproofing seal for EXE750HZ Includes replacement screws Weatherproofing seal for EXE1000HZ Includes replacement screws R Clip Fixes motor arm to tread Motor Assembly Crank Arm assembly Front tread stop Assembly otep Loom Kit Full loom including m switches Magnet Assembly To activate m switches Nylon Guide Assembly Tread Pin Assembly Idler Arm Assembly Motor Arm Assembly Micro switch Universal Tread Roller Assembly Tread Runner Assembly Cassette EXE600HZ Cassette EXE750HZ Cassette EXE1000HZ JGCDS 1 20 Spare Parts Exploded View Page 21 CERTIFICATION This is to certify that AVS Steps have met the following specification and EU Directives largas l Stag spadala DECLARATION OF CONFORMITY Product AVS Steps Product Codes EE EX G LX K SL T CE Mark All steps Serial No All steps Identifies product Directives Steps are manufacturedsto the relevant EU directives 2001 85 EC Bus and Coach Directive 98 37 EC Mechanical Handling Directive 72 245 EC Radio Interference Suppression LegalJoad Requirement 136Kg SWL 150Kg x 50 000 cycles Tested Maximum Specification of Materials Recycling Cycle Test Decals Declaration 225Kg x 25 000 cycles Materials listed will re
9. MOLS LON A INO 922708 SKYY YM 422 aBL EID ALES 1 i MOBA NOLIRSI NOLLdO 437219 SNINHYM 4JE B OAHING Sd 3I S3H8NO3 SERN apa rione Se su Lugo LG Apr ge mph ke Perey cde t TOYLNOD dur eeng Pee PE ipl cb yoe g OLAY ATINGA AV 1534 TAS td 14 OC Io AVS STEPS 750 amp 1000 2 Replacement Motor m A aum E Parts Supplied 1x Motor unit inclusive of sensors and plug in loom 1 x M8 Nyloc 1 x M8x25 Bolt slave side 1 x M8x15 Bolt into motorshaft 2 x24 steel washers 1 x M8 Spring washer 1 x M8x40 Nylon Washer 1 x M8 x25 Nylon Bush _ e _ Unplug the step from the rear and remove the bottom cover from the step to gain access to the motor unit Put a mark across the junction of the toothed arms as indicated by A as this will save time later in lining them up when putting them back Remove clips B securing the arms to the tread and push the tread forward to give more room to work Page 15 Remove the 4 bolts and spring washers holding the motor housing to the case Remove the clip securing the wiring to the case Push the loom through the back of the case The whole motor assembly can now be removed Remove the 2 b
10. ect and clean tread plate 13 Supply and fit weatherproofing kit if not fitted 14 Replace side arm mounting bolts and Loctite as required 14 Lubricate all parts 15 Replace cover 16 Refit step Leave fitting hand tight only 17 Connect electrics as required Use waterproof connections is required 18 Operate step approx 10 times 19 Refit lower panel and tighten fittings 20 Test again and weight test 150Kg VAR Compile report 22 Update customer Service Record book In blue pack provided with Step For details of other service agents in your area contact AVS or see details on our web site www avssteps co uk We recommend SILICONE SPRAY be used as a lubricant DO NOT USE GREASE Service interval is recommended 6 months maximum Steps should be cleaned monthly or more frequently depending on operating conditions Cleaning instructions are available on request on our web site and in the SERVICE DOCUMENTS provided with every step TEL 01948 880010 AFTER SALES 01948 780238 FAX 01948 880020 www avssteps co uk ays sicos pe ies pee ad l Page 6 FAULT FINDING INSTRUCTIONS STEP TYPE Electric and E Last Updated 25 06 07 TITLE Step Failure Diagnostics Revision 1 AVS STEP FAILURE IN OPEN POSITION Test 1 With side door open hand brake on ignition on step switch on fully auto Listen closely to step underneath the vehicle when someone tries to close it by operating the rocker switch fail
11. elow have been carried out and documented Each test carried out by AVS 15 individually recorded and documented Further details including photographs may be available on some test by contacting AVS AVS Bench Mark Dirt Compaction Test None Standard Details Sum Date Type Range ma ry 1000 7 AVS 20Kg of mud clay based compacted into Pass 21 12 06 Bench the step artificially Mud compacted Mark around motor and side arms 1 stowed position Operate Repeat from open position Operate Operates 21 12 06 e 5 LL wm m gt E Test Carried By Date A M 2 F 5 Chief Engineer di Test Number 27 AVS Steps Alders Farmhouse Alders Lane Whixall Whitchurch SY13 2PZ UK 0044 1948 880010 0044 1948 880020 www avssteps co uk Mem aYS SICOS Page 24 AVS TEST CERTIFICATE The following certification 1s supplied by AVS to confirm that the products and test listed below have been carried out and documented Each test carried out by AVS 1s individually recorded and documented Further details including photographs may be available on some test by contacting AVS AVS Bench Mark Bench mark is 100 000 No standard applies cycles Cycle Test against a 2 5N force restricting both stow and deploy NOTE Interim certificate Test is continuing Step Standard Details Result Summa Date Type Range ry type AVS Bench Mark As above 5 320 Pass 30 1 07 Motor Twin Cycles
12. olts and washers holding the toothed gear arms to the motor shaft A and casing B There is a nyloc retaining nut that you will have to remove from the underside of WA Installing the new motor You will now have to build up the new motor replacing the arms etc in reverse order it is recommended that you use the replacement bolts and washers included with the motor as the ones that have just been taken of may be worn Motor Shaft Side Start on the left with the bare Replace the toothed motor arm Replace the M8 washer Place the spring washer Finally the M8x15 bolt motor shaft on top of the M8 washer using threadloc Motor Idler arm side Be sure to line up gears with the marks put on earlier Place the M8x40 washer Place the idler arm on top of Place the 8 bush inside the Place M8 steel washer Tighten down bolt take back quarter turn and sucure with over the hole the bracket the washer o hole top of the bush aac onhe back Page 16 Position motor assembly back in the case Screw assembly back into step with the 4 bolts Push loom through back of step not forgetting to replace grommet securely in the back of the case Secure wiring with P clip Secure the motor arms back onto the tread using the clips D Refitting the Motor Arm to the Tread Tread Pin Place nylon washer on tread Put arm on top of washer arm pin has a b
13. omatically when door closes for safety Step will stop if it encounters an object See special option Control boxes fitted with thermal cut out to prevent motor damage Rubber buffers for soft landing at end of travel Magnetic reed switches control stow and deploy Step platform is 600 750 amp 1000mm x 300mm 12 deep 2mm Galvanised steel case Weather proof protection strip at front of step cassette Self cleaning side arm action Emergency stow facility and retention Anodised aluminium tread assembly Stainless steel runners with nylon rollers 12v electric motor Twin arm drive delivering evenly spread force to the step tread Maintenance should be every year depending on use To maintain clean and lubricate with silicone spray every 30 days or as required Wiring loom consists of a loom to the dash from control box loom to the step from control box body loom control box with water proof plugs to step Dash mounted switch bezel and red flashing warning light Zero battery drain when stowed THE MOTOR UNIT The H type motor designed specifically for AVS to AVS s specification Tested to an equivalent of 20 years operation Operates at just 2 and peaks at 10amps Tested to 10 hours at full amps against a solid obstruction Installed in the T Type step as a single arm Installed in the EX Type step with a twin arm mechanism TECHNICAL Voltage 12V Current Approx 2 amps during deploy and stow
14. quire separating prior to recycling under current legislation Minimum cycle test is 100 000 operations under a load of 2 5Kg force steps have operation labels applied Additional label for application to the vehicle for maintenance Additional label for application to vehicle for foot operation We hear by certify the above information to be correct Mr K Clarke Director Representative for AVS AVS Marketing Ltd Company Registration No 3973828 Registered in UK Directors Karen Clarke Keith Clarke Page 22 AVS TEST CERTIFICATE The following certification is supplied by AVS to confirm that the products and test listed below have been carried out and documented Each test carried out by AVS 15 individually recorded and documented Further details including photographs may be available on some test by contacting AVS AVS Bench Mark 250Kg 5505 applied EU 2001 85 EC 100 000 times to 100mm diameter steel pad at front centre of tread Maximum p allowed 8mm Step Standard Details Result ond Date Type Range EXE600 AVS Bench Mark 240 000 cycles 19 04 07 Shaun Connolly 19th April 2007 AVS Steps Alders Farmhouse Alders Lane Whixall Whitchurch SY13 2PZ UK 0044 1948 880010 0044 1948 880020 www avssteps co uk S p Hold Tr B Page 23 CERTIFICATE No 21 12 11 2006 AVS TEST CERTIFICATE The following certification 1s supplied by AVS to confirm that the products and test listed b
15. rn as Eyes pee ad I Page 8 FAULT FINDING INSTRUCTIONS STEP TYPE Electric T andE Last Updated 25 06 07 TITLE Step Failure Diagnostics Revision 1 STEP FAILURE IN STOWED POSITION Test 1 With side door open hand brake on ignition on step switch on Check 10 amp fuse in power lead to in control box If blown replace and recheck step operation If fuse does not blow again immediately or has not failed proceed to test 2 If fuse blows immediately on attempted operation of the step Pull apart the loom connection plug at back of step unit and check state of the internal pin connectors If pins show signs of water contamination clean and re connect plug and retest step operation If pins OK re try operating step with plug still disconnected if fuse still blows there is a short in the loom from the step plug back to the control box check loom wires back to control box have not been trapped or become frayed anywhere obvious If fuse does not blow with plug disconnected the short is within the step unit test with a circuit tester earthed to step case and the other lead to each of the power pins in the step loom plug in turn as shown in diagram below If there is a circuit from either pin to the step case there is a short in one of the step motor wires within the step unit remove lower cover of step and check the wires from the motor have not been trapped or become frayed and are sho
16. rting out on the case Test 2 Do a visual check on all wire connections to the rocker switch fail safe multi plug connectors to the control unit power switch fully auto and also check the door switch is earthing when the door is opened hand brake is earthing when applied Also check the main power lead and earth leads from the control unit are connected properly If these all appear to be correct proceed to Test 3 Test 3 With someone listening close to the step underneath the vehicle check for any sound coming from the step motor when the rocker switch is pressed door is opened to deploy the step make sure door is open handbrake applied ignition on step power switch is on fully auto only Note if the step is wired up as fully auto 1 close the door for 1 mins before carrying out this test to allow the thermal switch on the step motor to cool and reconnect if the motor has been trying to deploy the step for some time but has been prevented by some obstruction It will have switched off automatically and will not reconnect until the thermal switch has cooled down If step motor is making a noise and continues to make a noise for as long as rocker switch is held down or door open fully auto check that there is no obstruction in the step unit preventing it deploying such as a piece of gravel trapped in the slides gear mesh of twin arm types remove lower cover and disconnect the link arm s from the tread Check that the
17. safe or closing the side door fully auto For fully auto steps make sure the side door is open for at least five minutes first to allow the motor thermal switch to cool if the step is jammed in any way and the motor has been trying to close the step The switch will automatically switch off the motor and needs to cool before it will reconnect If no noise from the step go to test 2 If step makes a noise but does not move go to test 3 Test 2 Check 10 amp fuse in power lead to in control box If blown replace and recheck step operation If fuse does not blow again immediately or has not failed proceed to test 4 If fuse blows immediately on attempted operation of the step Pull apart the loom connection plug at back of step unit and check state of the internal pin connectors If pins show signs of water contamination clean and re connect plug and retest step operation If pins OK retry operating step with 5 pin plug still disconnected if fuse still blows there is a short in the loom from the step plug back to the control box check loom wires back to control box have not been trapped or become frayed anywhere obvious If fuse does not blow with plug disconnected the short is between the step plug and the step motor unit test with a circuit tester earthed to step case and the other lead to each of the power pins in the step loom plug in turn as shown in diagram below If there is a circuit from either pin to the step ca
18. se there is a short in one of the step motor wires probably within the step unit remove lower cover of step and check the wires from the motor have not been trapped or become frayed and are shorting out on the case Test 3 If step motor is making noise and continues to make a noise for as long as rocker switch is held down or door closed fully auto check that there is no obstruction in the step unit preventing it closing such as a piece of gravel trapped in the slides gear mesh of twin arm types remove lower cover and disconnect the link arm s from the tread Check that the tread can slide in and out easily and check gear meshing point of gear arms on twin arm units are free of any particles that could be jamming them If it is clear that there is no external contamination preventing the step moving then the gearbox of the motor has failed and a new motor unit will be required Test 4 Unplug step from body loom at plug at rear of step unit With a circuit tester and step unit still deployed check that there is no circuit between the stowed micro switch pin and the micro switches common return pin in the step loom plug see diag below If there is a circuit the stowed micro switch has stuck closed or has failed closed Remove bottom cover of step and check the stowed micro switch the one that would be activated when the step is closed is not damaged if damaged it will need replacing OS
19. see if the step will close If the step will close but does not deploy the deployed micro switch may have failed this is the micro switch that is activated by the motor arm when the step is fully deployed With the step in any position other than fully deployed use a circuit tester and check for a circuit across the deployed microswitch pin and common return pin see diag below If there is a circuit the micro switch is operating correctly and there is a fault in the step control box This will have to be replaced If there is no circuit the deployed micro switch has failed and will have to be replaced Diag 1 plug from step Deploy m switch M switch common return QRS 10 SENES AVS STEPS EXE600 750 amp 1000HZ Emergency Stow Procedure In the unlikely event that your step should stop in the out position please follow the procedure detailed below On the underside of the step you Pull the R clips out and retain Remove the steel and nylon washers will find 2 arms attached to the them you will need them later aluminium tread Remove the arms and fold them The arms need to be crossed over to Push the step in and insert the in and under the step fully stow inside the case clip into the holes in underside of the case on both sides The clip needs to be fully When fully through the holes the pushed through the holes pins will holds in the tread
20. sting the Motor To test if your motor is working or not you can apply a direct 12v current to pins 1 and 4 and re verse to make the motor go the other way but be careful as the motor will only stop when you remove the current Testing the Stow micro switch With the step stowed use a circuit tester on pins 2 and 5 you will not get continuity With the step deployed you will get continuity With the step in the half way out position you will get continuity Testing the Deploy micro switch With the step stowed use a circuit tester on pins 3 and 5 you should get continuity With the step deployed you will not get continuity With the step in the half way out position you will get continuity Page 19 Diag No ON O FPF MN NY gt ON O oO FP gt Part SPEX12010001 SPEX12010002 SPEX12010003 SPEX12010004 SPEX12010005 SPEX12010006 SPEX12010007 SPEX12010008 SPEX12010009 SPEX4010126 SPEX12010010 SPEX12010011 SPEX12010012 SPEX12010013 SPEX12010014 SPEX12010015 SPEX12010019 SPEX12010016 SPEX12010017 SPEX12010018 SPEX12010020 SPEX12010021 SPEX8010218 SPEX8010223 5 8010217 spare Parts List Description Comments Lower cover Assembly for EXE600HZ Includes all bolts and washers Lower cover Assembly for EXE750HZ Includes all bolts and washers Lower cover Assembly for EXE1000HZ Includes all bolts and washers Full Tread Assembly for
21. tainless steel tubular runners This can be done as part of the service routine Failure to clean the steps regularly or to service the steps may result in the failure of the step in service This will not be covered under warranty We recommend that mud flaps are fitted to your vehicle Your step serial number is on the front RHS of the tread This will tell AVS exactly what type of step you have For more information contact AVS on SALES AFTERSALES Tel 01948 880010 01948 780238 Fax 01948 880020 01948 780458 Silicone Spray is supplied by Rocol on 0113 232 2700 www rocol com Applying Silicone Spray after the step has dried ays sicos pe ies pee ad l Page 5 STEP SERVICE ROUTINE STEP TYPE All AVS steps Last Updated 19 6 06 TITLE Service Routine Revision no 1 AVS Service Routine EVERY 12 MONTHS AVS Electric or Manual Steps 1 Note step serial no and start report 2 Disconnect electrical connections where possible 2 Remove step from vehicle 4 Remove tread plate and lower panel Remove guide rods Cassette steps only 6 Clean inside of case Inspect micro switches and clean lube or replace 8 Inspect tread plate linkage to motor Check nylon bearings 9 Inspect and clean replace stainless steel tubes and rollers as necessary 10 Check nylon guides for wear Replace as necessary 11 Inspect connections to micro switches and motor including grommets in case 12 Insp
22. to date Test Carried By Date AVS Test Rig From 19th Dee 2006 to Mr Shaun Connolly 2nd Jan 2007 Keith Clarke Director AVS Steps Alders Farmhouse Alders Lane Whixall Whitchurch uum ays sicos UK Salinas quati 0044 1948 880010 0044 1948 880020 www avssteps co uk Page 25 EX SERIES 600 750 1000 1200 Electric Cassette Steps Useful Information to Keep Step Serial No Nearest Service Agent Next Service Due Other details Page 26
23. tread can slide out easily and check gear meshing point of gear arms on twin arm units are free of any particles that could be jamming them If it is clear that there is no external contamination preventing the step moving then the gearbox of the motor has failed and a new motor unit will be required QRS l 9 If step motor starts then cuts out with a small movement of the tread Check that the door handbrake lead is connected properly to the switches and these are earthing when the door is open handbrake applied make sure ignition is also switched on If these are correct then the control unit is faulty and will need replacing If step motor is silent unplug the step loom plug at the rear of the step unit and apply a separate 12v supply across the two power pins in the step loom plug see diag below If the step motor remains silent the motor has failed and will have to be replaced If step motor makes a noise but the step does not move reverse the polarity and check that the step deploys If the step does not deploy but the motor still makes a noise go back to stage above to check for objects that may be trapped in the step mechanism above If step can be deployed and stowed by applying a direct 12v supply to the step power pins but ceases to operate when the plug is reconnected and operated by normal methods deploy step using the direst power supply to the pins then reconnect the plug and
24. ush built in E Place another nylon wash Place steel washer on top of Finally secure all with er on top of arm nylon washer clip Page 17 Setting the micro switches p Stow micro switc A2 Deploy micro switch B Actuator magnet on underside of motor arm C Micro switch adjustment bolts 1 Ensure all wiring is pinned back out of the way and will not foul the movement of the motor arm 2 Plug the step back in 3 Deploy the step In the deployed position the tread should be fully extended if it is stopping short adjust the deploy micro switch A2 to the right until the tread stops in the correct position and vice versa if hitting the front stops too hard 4 Stow the step When fully stowed the back of the side arms should be up against the rubber stops in the back of the case if they are stopping short adjust stow microswitch 1 to the right until the tread stops in the correct position and vice versa if hitting the rear stops too hard 5 If you have a buzzer or warning light check that when stowed the light buzzer goes of If the llight buzzer does not go off it means that microswitch A1 is set too far around and will need to be readjusted back anti clockwise Page 18 Fault Finding gw View of plug leading rear of the step flat the top position 1 Hir er Black m s Blue 3 Purple V White ommon 1 to both m s Red Le ha gt Te
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