Braun RA300 Transit Ramp Braun RA300 Transit Ramp
Contents
1. HO1IMSOHOIIN Lau VOZL G3H moo wosi sunm ON VOSI 3UIHM MOTISA 40102 NNO2 H21IMSOHOIMW 09 CI r3 HOLIMSOHOIIN H31Nf02 vosi xovia a9NvuO woo 10N ON YD OW 40102 NNOO HOLIMSOHOIN HOLIMSOXSIN 13184 vou wovis yo 21 039 Gasn 10N VD 91 MOTTBA 40109 907 4344105 sod vm Ch a VOVL MOTIBA VO vI 31H 10N ond V9 9 10N ond 9 vosi xovi8 ama vou asueor v 0109 3002 QNO2 8 gt Lf HOLO3NNOO 9 91 HOLVOIGNI OL 9 91 HOLVOIGNI MOLS OL GSN 10N Gasn 10N 9 wNois 9 MOLS 21 3TOM3A 21 398n05 80102 NI 4 302 3HIM QNO2 8 H3TIVISNI2. SNIBIM 9 10 2 8 1 HOLO3NNOO vou wovis vo 91 x0v18 39Nv80 HO10W 80102 3002 atl 1 Av 13H Av Tag wez xvis vozi aau voz xovi ama uoion 40102 ___ 0 9 3002 2 AV T3H a es D c Av 38 Av 138 MOLS Page 33 TROUBLESHOOTING M Electrical Schematic BF3248YP POWER CONNECTIONS CONTROL SIGNALS PROVIDED BY INSTALLER SYMBOL KEY ENDE COME DESCRIPTION SYMBOL i SIGNAL TO RAMP DEPLOY INDICATOR i LL 1268 14 Gh SIGNAL TO RAMP STOW INDICATOR CHASSIS GROUND L 1 T USER CONTROL SIGNAL IGNITION MANUAL RELEASE CincUrr PROTECTION DEVICE CN i i 12 GA or 16 G USER CONTROL SIGNAL TO DEPLOY RAMP UR m i Te GA i MICROSWITCH c i u USER CONTROL SIGNAL STOW RAMP the RELAY ous 12 GA GROUND Ten i i 5 COIL N 126 120 i CIRCUIT us E L i DIODE PROTECTION BATTERY i DEVICE 30
3. 3314105 vos vis z VOR 1 40109 Nid NNOO H2 LIMSOHDINW S 3 V 1109 QION310S LIT Yori wanes vori wana HOLOW 3 uo102 001 3009 3HIM 1 AV T3H 5 Bf L AVT3H Yo vi ovig ama 1 Yo CVOTI XVI SONVUO NOn 3IMM vo 3009 2 AV 13H NO1ON 3 40109 901 302 amp AV T3H VO WOTI3A vozi dau G3sn 10N oma vovi ovis a9wvuo vi xovi8 ama EY CESET s v 80102 3002 QNO2 8 OL MOIS OL 9 a v I 3009 QNO2 8 17 HOLO3NNOO H3TTVLSNI 9NIHIA 9610 19 HOLO3NNOO 35 HYDRAULICS Hydraulic Schem
4. BF3248YP iagram D iring w vos vis L 40109 Nid NNOO 5 9 102 GION310S V z OSEN L 40109 Nid NNOO H LIMSOY JIN V vL moo 10N ON 40109 Nid NNO2 5 noo I3 low oO oO HOLIMSOHOIN 110 LIT 1109 GION310S vori xens ON woo 40109 Nid NNO2 5 vo 038 ON VO rL ON 80102 NNOO HOLIMSOXSIN v n __ LON HOLIMSOXSIN mu L3 E E HOLIMSOXSIN 1 oo Hee LJ LJ HOLIASOHOIN H31Nn02 4 N 2 5 aunsatid vosi xovig yo G35n 10N 40109 001 3002 H31N0O9
5. GROUND MOTOR RECOMMENDED WIRE GAUGE SOUNTER 1 s z 6 uo iom lt DRAWING SHOWN WITH RAMP IN STOWED POSITION i RD 12 GA RD 12 GA 12 12 GA i i BL BK 18 GA i x PRESSURE SWITCH i P BL BK 14 GA BL BK 14 GA gt l i 5 7 NU i NO i eod RELAY 1 m i I NC 85 5 BK 12 GA 2 RD 12 GA l 30 87 T BK 16 GA DRIFT IN Ei 87A 12 4 MICROSWITCH BLUE MOTOR BLUE MOTOR i lt lt lt 5 lt NU 6 9 16 o i 7 RELAY 2 e OR BK 14 GA 85 86 a 12 GA i 30 87 DRIFT OUT 87 a MICROSWITCH NO 1 5 RELAY 3 NC OR BK 14GA 85 88 12 MZ RD 12 GA 4 30 87 ku i i 1 87A 12 GA COUNTER amp POWER DOWN ORANGE MOTOR VU ORANGE MOTOR MICROSWITCH a COUNTER BK 16 GA 1 4 YUWH 18 GA xL e cou BK 12GA i e rr NC WH 14 GA Aga 2 N A 1 POS 2 80212 GA RD 18 GA RD 18 GA TROUBLESHOOTING
6. 20 Ramp Components Terminology Illustration 3 Maintenance and Lubrication Schedule 21 23 eter rere deos 4 TEMNO ccu 4 Systems Descriptions 4 Ramp 5 ted 24 25 Ramp Actions and 5 Hydrauli S intends 26 27 Ramp Operation Troubleshooting Ramp Operation Safety Troubleshooting Diagnosis Chart 28 30 Safety Symbols 6 Electrical Schematic BF3248Y amp BF3748Y 32 Ramp Operation Safety Precautions 6 7 Wiring Diagram BF3248Y 4 BF3748Y 33 Pre Operation Notes and Details Electrical Schematic 248 34 Ramp Access Doors and Interlocks 8 Wiring Diagram BF3248YP 35 Operation Procedured Review 9 Preventive Maintenance 9 Hydraulics Ramp Operation Ramp Power 10 Hydraulic Schematic BF3248Y amp BF3748V 36 Ramp Manual Operation
7. Door Opening Open the door s fully and check the clear door opening width dimension Speci fied minimum clear door open ing width must be provided 34 for 32 ramps and 39 1 2 for 37 ramps See Figure F Door s must open outward When closed the door s should align with and conform to the outboard edge of the ramp pan rubber seal on bottom of door Minimum Clear Door Opening Dimensions are defined as fin ished door opening including any intrusive door jambs headers sills or hinges Obstructions Any intrusive ob structions within the door opening or the ramp mounting operating area such as seats molding lights brackets etc must be re moved Trim or molding that cre ates an uneven mounting surface RAMP INSTALLATION should be removed The molding can be modified to fit around the ramp pan horizontal border lip There must be a minimum 1 8 clearance between the de ployed ramp assembly and the vehicle floor or any obstruction on the floor such as a rubber sill or threshold Floor Pocket Clear Opening Dimensions Outboard Support Tube Recom mended Height 12 above ground level Kneeling Vehicles measured with suspension lowered BF3248Y amp BF3248YP 34 3 4 BF3748Y 39 3 4 Structure Minimum 1 1 2 x 2 steel tub ing or equivalent ADA Installations with support tube positioned higher than 12 above ground level may not comply wit
8. i DRAWING SHOWN WITH RAMP IN STOWED POSITION 5 z o u ulojolaj lt 12 GA RD i 12 GA BK 2 2 DRIFT IN x g MICROSWITCH 4 STOW NO RELAY x 16 GA BN BK cC x tNC _ 16GABUBK 85 21 58 12GA BK 12 GA RD 87 i 30 2 97 12GA BK DRIFT OUT 12 GA RD 12 GA BU MICROSWITCH bud ind dle DEPLOY i ele RELAY i 16 GA OR BK C _ 1664 ORK 85 2 86 12 E 12GA RD a 30 87 F 97A i5GABK COUNTER 12 GA RD 12 GA OR MICROSWITCH MT 16 GA YL NU NO 5 B c d COUNTER 1 4 T NC e 16 GA YEAH 4 COUNT 12 GA 16 GA WH m WY 2 A e 3 12GA RD H 12 GA RD A e oe e ui M m ie S u Page 32 TROUBLESHOOTING BF3248Y amp BF3748Y iagram D iring W wosi xovis Nwou8 moo 10N ON vosi xovis sma oW 30102 NNOO HOLIASOHOIIN woo
9. 11 Hydraulic Diagram and Parts List BF3248Y amp Ramp Passenger Safety 11 12 BES748Y a uc aasan san RR RR RR EE 37 Hydraulic Schematic 248 38 Ramp Installation Hydraulic Diagram and Parts List BF3248YP 39 Installation Service Safety Safety Symbols x rene tet 13 Ramp Operation Safety Precautions 13 14 Installation Instructions Installation 14 Chassis Requirements 14 Door Openirig LEES sch 15 ObsStr clioris 15 Installation 5 15 17 Electrical 18 Electrical Connections Illustration 19 Repair Parts RA300 Ramp Exploded View Repair Parts List 40 Exploded View Fold Out 41A 42A Specifications and Dimensions 41B 42B Daily Preventive Maintenance Schedule 43 Page 1 RAMP TERMINOLOGY Ramp Terminology Illustration Refer to the illustration below and the illustrations on page 3 for identification of components and clarifica
10. BF3248Y 32 07 BF3248YP 32 07 BF3748Y 37 02 Page 41B 17 04 BF3248Y 34 75 BF3248YP 34 75 BF3748Y 39 76 BF3248Y 36 97 BF3248YP 36 97 BF3748Y 41 98 BF3248Y 10 96 BF3248YP 1096 BF3748Y 11 25 23 18 BF3248Y 2 56 BF3248YP 22 56 j 25 80 BF3748Y 2 72 BF3248Y 27 69 BF3248YP 27 69 BF3748Y 27 73 BF3248Y 36 77 BF3248YP 36 77 BF3748Y 41 98 A THE BRAUN y P CORPORATION BF3248Y 32 07 BF3248YP z 32 07 BF3748Y z 37 02 BF3248Y z 33 53 BF3248YP z 33 53 BF3748Y z 38 48 BF3248Y 6 90 BF3248YP 6 90 BF3748Y z 7 41 BF3248Y 2 56 BF3248YP 2 56 BF3748Y 2 72 Page 42B DAILY PREVENTIVE MAINTENANCE SCHED Vehicle Number Date Inspector Pre Trip Inspection Before each scheduled day of lift service operate ramp minimum one complete cycle and inspect each of the following Do the vehicle interlock s function as intended Does the ramp deploy when the ramp interlock is activated as intended _ Does the lift control switch function properly _ Does the ramp cargo door light i
11. 574 946 4670 Braun Commercial RASOO Transit Ramp Braun Worry Free Limited Warranty The Braun Corporation Braun warrants its ramp against defects in material and workmanship for three years provided the ramp is installed operated and maintained in conformity with this manual Warrantied replacement parts are covered until the expiration of the Braun warranty or 90 days whichever is longer The Braun warranty covers the cost of labor for any repair or replacement covered under the warranty during the first year of the warranty period if an approved Braun dealer completes the warranty work The warranty registration card accompanying this ramp is to be completed and returned to The Braun Corporation within 20 days of purchase If Braun receives the warranty card the warranty period begins on the day the ramp is put into service If Braun does not receive the warranty card the parts warranty will expire in three years and the labor warranty will expire in one year from the manufacture date of the ramp The Braun warranty does not cover any defects in the motor vehicle on which the ramp is installed or defects in the ramp caused by any defect in the motor vehicle The warranty does not cover work deemed by Braun to be normal maintenance service or periodic adjustments necessitated by use or wear The Braun warranty is null and void if any repair or maintenance work is completed during the warranty period using parts not auth
12. Intoxi cated passengers should not be allowed to board or exit the vehicle Passengers should be positioned in the center of the ramp at all times Attendants and ramp pas sengers must be able to clearly view the ramp whenever boarding and exiting the vehicle The Page 11 RAMP OPERATION Ramp Passenger Safety Continued AWARNING Position and fasten the wheelchair equipped occupant seat belt before loading onto the wheelchair ramp Failure to do so may result in serious bodily injury and or property damage attendant and or wheelchair pas senger must ensure the ramp is fully deployed before exiting the vehicle Observe your passen gers at all times when they are entering and exiting the vehicle Wheelchair Equipped Occupant Seat Belts Wheelchair passen gers should position and buckle their wheelchair equipped seat belt torso restraint as specified by the manufacturer before load ing onto a wheelchair ramp Different types of disabilities require different types of wheel chairs and different types of wheelchair equipped occupant restraint belt systems torso re straint It is the responsibility of the wheelchair passenger to have his or her wheelchair equipped with an occupant restraint seat belt under the direction of their health care professional Page 12 Be aware of ramp slope Stabilizing Wheelchairs Pow ered and manual wheelchairs are desig
13. Lubricate pivot pins See Maintenance and Lubrication Schedule and Diagram Correct Replace Lubricate See Main tenance and Lubrication Schedule and Diagram Check and correct Check for contamination or kinks correct or replace Thin with Diesel fuel 2 T Change in spring See Systems Descriptions for full time cold climate specifications 2 50 Drifts Excessively Slow or No Drift See 2 38 and 2 40 Pump internal orifice plugged or damaged Drift out cam needs adjustment Contact Braun Product Support replace pump See drift cam adjustment procedure 2 60 Drifts Excessively Fast See 2 35 and 2 36 Pump internal orifice enlarged or damaged Drift our cam needs adjustment Contact Braun Product Support replace pump See drift cam adjustment procedure Page 29 TROUBLESHOOTING M FUNCTION Page 30 SYMPTOM 3 10 No Operation POSSIBLE CAUSE 3 11 See 1 00 3 12 Drift In Microswitch out of adjust ment or damaged 3 13 Drift In Microswitch harness discon nected damaged or otherwise damaged REMEDY Adjust or replace See Microswitches in Systems Descriptions for details Connect repair or replace 3 20 Locked in Intermediate Position No Response to Stow Switch No Drift In Ramp was stopped within the Stow Drift In range during Deploy func tion Y models only Activate Deploy function until ramp is out of the Stow Drift range Then activate Stow
14. Stow Stow is the action of the ramp assembly raising and fold ing inward to stow position when the STOW IN switch is acti vated installer supplied Stow Position Stow position is achieved when the two stage ramp assembly is fully retracted and folded resting fully on the pan weldment Manual Override Manual operation is achieved without the use of any mechanical release or complicated procedures Simply use the Hand Holds provided on the ramp assembly to manually deploy or stow the ramp Mini mal physical effort is required to route the hydraulic fluid through the system Slow steady motion results in the least resistance and easy operation The faster you attempt to manually operate the ramp the greater the resistance See Ramp Manual Operation on page 11 for further details Page 5 RAMP OPERATION EE Safety Symbols SAFETY FIRST Know That A All information contained B in this manual and supplements if included is pro vided for your safety Familiarity with proper operation instructions as well as proper maintenance procedures are necessary to en sure safe trouble free operation Safety precautions are provided to identify potentially hazardous situations and provide instruction on how to avoid them AWARNING This symbol indicates important safety information regarding a potentially hazard ous situation that could result in serio
15. included It is the responsibil ity of the attendant to properly open and close the ramp access door s to activate interlock s to properly activate the ramp power functions as well as assist ramp passengers Do not operate the ramp if you suspect ramp damage wear or any abnormal condition Dis continue use immediately and contact The Braun Corporation at 1 800 THE LIFT One of our national Product Support repre sentatives will direct you to an authorized service technician who will inspect the ramp RAMP OPERATION Operation Procedure Review The Braun Corporation recom mends that transit agency su pervisors and driver attendants review the safety precautions and operation procedures appearing in this manual with the ramp sales representative or vehicle con verter before attempting ramp operation Any questions or concerns can be answered at that time Operate the ramp through all functions to ensure the proper use and opera tion is understood Transit agency supervisors should train and educate all driver attendants on the proper use and operation of the vehicle door system interlock s ramp and ramp passenger safety The ramp owner s service manu al must be stored in the ramp equipped vehicle at all times AWARNING Read and become familiar with all ramp operation safety precautions pre operation notes and details operating instructions and manual operating
16. tion of direction terminology Details regarding lift model variations terminology direction and compo nents are provided on pages 4 and 5 Sub floor Fixed Drive Arm Inboard Ramp Stage One Tension Cable Pan Weldment Drive Arm Vertical Side Plate Barrier Hand Outboard Hold Ramp Stage Two IN RIGHT LEFT OUT As viewed from outside the vehicle Page 2 RAMP TERMINOLOGY Ramp Components Terminology Illustration Cable Tension Cable Pulley Relays Counter Gas Spring Tension Cable Cylinder Remote Hydraulic Block BF3248Y amp BF3748Y Only H li Cam Hydraulic Cam Microswitch Assembly BF3248Y amp Assembly BF3748Y Only Remote Valve Block BT BF3248YP Only Ramp Drive Arm Oylinder Cable Pulley Pan Weldment Relays Cam Hydraulic Assembly BF3248Y amp BF3748Y Only Counter Ramp Drive Arm Cable Tension Gas Spring Cam Microswitch LEFT IN Assembly Remote Valve Block BF3248YP Only Note The tension cable sub floor and transition threshold OUT RIGHT plate removed from these illus trations for clear view As viewed from outside the vehicle Page 3 RAMP TERMINOLOGY Introduction Braun RA300 Series Transit Ramps to be referred to as RA300 throughout this manual are designed for use in low floor transit vehicles The RA300 provides vehicle access to people with di
17. 30209 30209 Plate Cable Retainer BF00235LY BFO0235LY BF00235LY Plate Cable Retainer BF00235RY BF00235RY BF00235RY Plate Cable Retainer BF00236LBKN BF37404LBKN BF00236LBKN Plate Cable Retainer BF00236RBKN BF37404RBKN BF00236RBKN Cable Retainer BF00237LY BF00237LY BF00237LY Cable Retainer BF00237RY BF00237RY BF00237RY Nut 10 32 x 0 20 Cable Retainer BF00242 BF00242 BF00242 Nut 410 32 x 0 49 Cable Retainer BF00243 BF00243 BF00243 Pump Power Unit _ V Hydraulic RA300 31698 12V or 24V 31698 12V or 24V 33364 Bolt 3 8 16 x 1 2 31655 Hex BF00249 BF00249 BF00249 Plate Tapped 4 40 Microswitch 24998 24998 24998 Screw 10 32 x 3 8 FL HD HX SKT Auto Black 24537 24537 24537 Microswitch Sealed 30205 30205 30205 Cam Microswitch Adjust Bi Fold BF00076 BF00076 BF00076 Cam Microswitch Adjust RA40506 RA40506 RA40506 Cam Manual Valve RA400 02 RA40500 RA40500 RA40500 Screw 10 32 x 5 16 Set Auto Black 11562 11562 11562 Screw 1 4 28 x 3 8 Set 11566 11566 11566 Screw 4 40 x 1 1 2 RD HD 11485 11485 11485 Relay 30 40A SPDT 12V P amp B Plastc Plug In 18087 18087 18087 Cycle Counter LCD without Reset 30547 30547 30547 N
18. SAE Male O Ring 24505 24505 Tee 7 16 O Ring RUN 7 16 M JIC37 24505 24505 Elbow 7 16 20 M O Ring 37 25085 25085 Fitting 7 16 20 7 16 20 37 24504 24504 Optional 24V Model Ramp Oo GQ O1 PO O N INT 02 N 50r7 g P d eu 6 or 8 N A 60r 7 Page 37 HYDRAULICS Hydraulic Schematic BF3248YP Cylinder Double 1 Description Symbol Acting Pump Bidirectional i ges Displacement Relief Valve g Pump Motor Bidirectional Ou Check Valve Flow Control T Valve EAE Hydraulic Port Fixed Orifice Filter Screen lt 3 Way 2 Position _J Reservoir Shuttle Valve ld Vented L e 020 COIL B COILA COIL R I EE 34 BAR 500 PSI 1 MES 4 4 e PRESURE SWITCH 4 PD PC RL gt Ref D C T A gt e gt 69 86 1000 PSI o o 1250 PSI Page 38 HYDRAULICS Hydraulic Diagram and Parts List BF3248YP Descriptio
19. aid ramp disabled passengers it is the responsibility of the driver attendant to ensure that ramp pas sengers enter and exit the vehicle on the ramp in the safest manner ADA requirements state that transit drivers at tendants must assist with attaching and removing wheelchair and occupant restraint belts Ramp passengers wheelchair passengers and standees and attendants must use common sense and good judgment regarding ramp safety Each wheelchair passenger or standee has a unique set of physical abilities combined with the physical characteristics of his or her wheelchair or other mobility aid that dictate the method in which he or she will enter and exit the vehicle Wheelchair attendants should be instructed on any special needs and or procedures required for safe transport of wheelchair passengers Follow all safety instructions regarding torso restraints stabil ity balance weight distribution and use of atten dants as specified in the owner s manual supplied with the passenger s wheelchair or other mobility aid Wheelchair passengers must determine establish and practice ramp boarding and exiting procedures under the direction of the their personal health care professional and wheelchair representa tive Those procedures should be conveyed to the ramp attendant Know your passengers abilities and needs for optimum safety Attendants must never operate the vehicle the ramp or assist passengers if intoxicated
20. begin power down sooner Turn Cam 3 counterclockwise to delay power down Page 25 SYSTEMS DESCRIPTIONS Hydraulics M 2202 0102 Hydraulic Pump Fixed displacement external gear type hydraulic pump with 12 VDC electric motor and 76 cubic inch fluid reservoir for 12V BF3248Y and 12V BF3748Y The Braun Pump Code for 12 volt M 2202 0102 pumps is 59 M 2202 0102 Hydraulic Pump Fixed displacement external gear type hydraulic pump with 24 VDC electric motor and 76 cubic inch fluid reservoir for 24V BF3248Y and 24V BF3748Y The Braun Pump Code for 24 volt M 2202 0102 pumps is 60 B 3202 0100 Hydraulic Pump Fixed displacement external gear type hydraulic pump with 12 VDC electric motor and 76 cubic inch fluid reservoir for 12V BF3248YP The Braun Pump Code for 12 volt B 3202 0100 pumps is 67 All RA300 Hydraulic Pumps The Deploy pressure relief valve is factory set at 1000 psi The Stow pressure relief valve is fac tory set at 1250 psi Hydraulic Fluid Use Braun 32840 QT Exxon Univis HVI 26 hydraulic fluid Do not mix with Dextron III or other hydraulic flu ids Make sure the ramp is fully deployed when checking fluid level or adding fluid Fill to within 1 of the top of the reservoir DO NOT use a solid plug or fill cap without a breather hole Doing so will result in pump and or reser voir damage Contamination Fluid should be changed if there is visible con tamination Inspect th
21. function 3 40 Pump Runs But Doesn t Stow See 2 31 2 32 2 34 2 35 and 2 36 Stow pressure relief valve setting too low Stow pressure relief valve stuck open due to contamination or other wise damaged Adjust relief valve setting See Systems Descriptions for details Contact Braun Product Support re place pump 3 50 Faulty or Sluggish Operation See 2 40 3 60 Drifts Excessively Slow or No Drift See 2 40 and 2 50 3 70 Drifts Excessively Fast See 2 35 2 36 and 2 62 BLANK for LAYOUT Page 31 TROUBLESHOOTING Electrical Schematic BF3248Y amp BF3748Y RECOMMENDED WIRE GUAGE COUNTER m POWER CONNECTIONS CONTROL SIGNALS PROVIDED BY INSTALLER SYMBOL KEY oup ICI QM CN NIME MMC COM CO E CU CC NM C DL a i DESCRIPTION SYMBOL 16 GA SIGNAL TO RAMP DEPLOY INDICATOR BATTERY E SIGNAL RAMP STOW INDICATOR i CHASSIS GROUND JL 1 18 USER CONTROL SIGNAL TO DEPLOY RAMP CIRCUIT PROTECTION DEVICE x 16 USER CONTROL SIGNAL STOW RAMP i JUNCTION i 12 GA GROUND i i MICROSWITCH MANN 12GA _ 12GA te e e T e a5 86 CIRCUIT i RELAY PROTECTION BATTERY i DEVICE GROUND x MOTOR 25
22. installer A momentary contact ramp control switch center off will typically be provided near the driver The control switch may be part of a panel providing other features and controls power on off indicators LED s etc Before operating the ramp park the vehicle on a level area away from vehicular traffic Place the vehicle transmission in Park and engage the parking brake Meet all other interlock conditions as equipped Activate the vehicle kneel system to lower the vehicle if so equipped Lowering the vehicle reduces the slope of the ramp Power Ramp Safety Be certain there is adequate clearance outside the vehicle before deploying the power ramp AWARNING Provide adequate clearance outside of vehicle to ac commodate ramp Failure to do so may result in serious bodily injury and or property damage The ramp opera tor attendant and bystanders must keep clear of the area in which the ramp operates and clear of all mov ing parts Attendants must ensure that passengers keep clear of the area in which the ramp operates Do not attempt to grip or hold the ramp ramp drive arm assemblies or the tension cables If you are an attendant operating the ramp it is your responsibility to oversee and or assist in performing safe passenger loading and unloading procedures Observe your passengers at all times when they are entering and exiting the vehicle Attendants must be aware
23. 0136 CONNECTOR P1 B C 30136 WIRING PROVIDED BY INSTALLER OR WIRING PROVIDED BY INSTALLER 8 COND WIRE CODE COLOR POWER SOURCE 12 GA VEHICLE GROUND 12 GA TO USER STOW 16 GA TO USER DEPLOY 16 GA PLUG NOT USED PLUG NOT USED RAMP STOW SIGNAL 16 GA RAMP DEPLOY SIGNAL 16 GA 8 COND WIRE CODE COLOR POWER SOURCE 12 VEHICLE GROUND 12 GA TO USER STOW 16 GA TO USER DEPLOY 16 GA PLUG NOT USED USER IGN MAN REL 16 RAMP STOW SIGNAL 16 GA RAMP DEPLOY SIGNAL 16GA 3 z ro gt gt RECOMMENDED WIRE GAUGE RECOMMENDED WIRE GAUGE Electrical Connections Illustration Page 19 MAINTENANCE and LUBRICATION w l l Ei Si Lubrication Diagram See the Maintenance Lubrication Schedule for recommended applications per number of cycles or elapsed time Gear and Gear Rack internal Ramp Hinge DE LO Ramp Hinge concealed LO Cable Bearing Surface LO Drive Arm and INN Cam Gear Shaft ON after Smooths SS or 1200 Cycles LO Cable at Pulleys LO Drive Arm Slot DE Specified recommended Available Braun Lubricant Lubricant Amount Part No LO Light Oil O welont or equivale Fenetamngol Aerosol Can 15807 DE Door Ease Sec 15806 L
24. 14 3 9800 C1514 3 9800 C1514 3 9800 Cylinder 1514 3 Compact C1514 3 9900 C1514 3 9900 C1514 3 9900 Shaft Main Pivot BF00239 BF00239 BF00239 Nut 1 4 20 Nylock Auto Black 14614 14614 14614 Bolt 1 4 20 x 2 1 2 Hex 10004 10004 10004 Washer Shaft Main Pivot BF00248 BF00248 BF00248 Bolt 5 16 18 x 1 2 316 SS Hex BF00251 BF00251 BF00251 Washer Spherical SS 5 8 OD 2pcs BF00229 BF00229 BF00229 Drive Arm BF00215LBKN BF00215LBKN BF00215LBKN Drive Arm BF00215RBKN BF00215RBKN BF00215RBKN Shaft Sheave BF00238 BF00238 BF00238 Shaft Bearing Support BF37317 BF37317 BF37317 Bearing 5 16 ID 3 8 OD 1 2 L 31902 31902 31902 Spacer Drive Arm BF00240 BF00240 BF00240 Bearing Ramp Fold BF00221 BF00221 BF00221 E Clip 3 8 Shaft 84383 84383 84383 Ramp Platform Stage 1 BF00200Y BF37401Y BF00200Y Ramp Platform Stage 2 BF00201Y BF37402Y BF00201 Y Plate Transition BF00247Y BF37406Y BF00247Y Hinge 2 x SS with Nuts 1 Row 29960PS 1Y BF37403 1Y 29960PS 1Y Hinge 2 x SS with PEM Nuts 2 Rows 29960PS 2Y BF37403 2Y 29960PS 2Y Plate Hinge Support BF00013Y BF37307Y BF00013Y Nut Weld 10 32 x 9 32 Plain Slab Base 30209
25. 9 81819 m m m S ro m m m i m no no nd Joo m 2 m 00 o o 11 a o is im 5 2 Pd Page 40 Harness Main Assembl not shown Optional 24V Model Ramp BF00080A BF00080A BF00081A 7 gt d a N X N Z x Z N 5 4 9 H R IIIIIEIEI IW IZII IH I IIIIII IIIIIIII II I I I I I IIII I II lt IIKI IWU I IE III I I II II II IIIIIWYWI I I lt I I I I II I I I II IIIIXSIIIIIIIIIIIIISIIIWI lt ISI lt IAII II WIOIIII IICKCC C C C I I IN I II GISI I CT IIIII EXPLODED VIEW x 40 m S _ 63 E 2D A J 24 P E d 529 2 p ues a ii NS s i E 4 d y E 5 E 3 42 41 Inputs Required Notes SPECIFICATION AND DIMENSIONS Power Unit Voltage Current Hydraulic Pump Module 12 VDC Optional 24 VDC 25 Amps Max 12 Volt Supply Ground Ramp Out Signal Ramp In Signal Interlock Signal Mounting holes brackets per application Deployed View Stowed View ma
26. Failure to do so may result in damage RAMP OPERATION Ramp Manual Operation If you experience power or equipment failure the ramp can be manually stowed and deployed The RA300 ramp must be manually operated by an at tendant Two oval shaped HAND HOLD slots are provided on the ramp see Figure A Carefully unfold and fold the ramp using the HAND HOLDs Keep clear of the area in which the hinged RA300 ramp sections fold and unfold Keep clear of the area where the inboard ramp side plates stow in the pan floor Keep clear of tension cables and drive arms Remember to use good body mechanics when folding and unfolding the ramp The safety precautions addressed in the Ramp Power Operation section apply to manual operation of the ramp also Read and become familiar with all ramp safety precautions Note Minimal physical effort is required to manu ally operate the ramp Slow steady motion results in the least resistance and easy operation The faster you attempt to manually operate the ramp the greater the resistance Keep clear of area where ramp side plates stow in pan floor Keep clear of hinged areas Keep clear of tension cables Hand Hold Keep clear of hi inged areas Hand Hold Use HAND HOLDs to carefully unfold and fold the ramp Ramp Passenger Safety Unless your transit agency has a published policy stating that driver attendants do not
27. G LightGrease us 15805 Page 20 MAINTENANCE and LUBRICATION Maintenance and Lubrication Introduction Proper maintenance is necessary to ensure safe trouble free operation Inspecting the ramp for any wear damage or other abnormal conditions should be a part of all transit agencies daily service program preventive maintenance Simple inspec tions can detect potential problems A generic Daily Preventive Maintenance Sched ule is provided in this manual for transit agency use The form can be tailored to your particular application Preventive maintenance visual inspec tions do not take the place of the procedures speci fied in this schedule The maintenance and lubrication procedures speci fied in this schedule must be performed by a Braun authorized service representative at the scheduled intervals according to the number of cycles or elapsed time whichever comes first RAS300 Ramps are equipped with hardened pins and self lubricating bearings to decrease wear provide smooth operation and extend the service life of the ramp Clean the components and the surrounding area before applying lubricants LPS2 General Pur pose Penetrating Oil is recommended where Light Oil is called out Use of improper lubricants can attract dirt or other contaminants which could result in wear or damage to the components Ramp com ponents exposed to contaminants when lowered to the ground may requir
28. Operator s Installation Service Manual Braun Commercial RA300 Transit Ramp for Low Floor Transit Vehicles THE BRAUN Amm CORPORATION Read manual Providing Access to the World before operating International Corporate Hdqrs Box 310 Winamac IN 46996 USA installing or 1 800 THE LIFT 574 946 6153 FAX 574 946 4670 servicing ramp Failure to do so may result serious bodily injury and or property damage 33778 March 2007 dwey TTE TRO TOES 723 Congratulations We at The Braun Corporation wish to express our fullest appreciation on your new purchase With you in mind our skilled craftsmen have designed and assembled the finest ramp available This manual includes operating instructions installation instructions servicing instructions and instructions for troubleshooting if needed Braun ramps are built for dependability and will provide years of service and mobility independence as long as the ramp is installed and maintained as specified and the ramp is operated by an instructed person Sincerely THE BRAUN CORPORATION M rn Ralph W Braun Chief Executive Officer w CONTENTS Ramp Terminology Maintenance and Lubrication Ramp Terminology Illustration 2 Lubrication Diagram
29. actly as outlined in the Maintenance and Lubrication Schedule contained in this manual Page 13 RAMP INSTALLATION Installation Service Safety Precautions Continued AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING erty damage Never modify alter a Braun Corporation ramp Disconnect the power cable at the battery prior to servicing Keep hands arms and all other body parts clear of moving parts Replacement parts must be Braun authorized replacements Never install screws or fasteners other than factory equipped Whenever replacing a hydraulic cylinder or seals deploy ramp fully Failure to follow these safety precautions may result in serious bodily injury and or prop Installation Requirements Braun RA300 Ramps must be installed and serviced by a Braun authorized service representa tive who has attended and been certified by The Braun Corpora tion Sales and Service School for Braun Mobility Products Read and become familiar with the operating instructions and the installation instructions contained in this manual before beginning installation operation or service procedures AWARNING Read this manual before performing installation operation or service procedures Failure to do so may result in serious bodily injury and or property damage Chassis Requirements The Braun RA300 Ramp is de signed for use in low floor trans
30. atic BF3248Y amp BF3748Y Cylinder Double l Description Symbol Acting Pump Bidirectional 3 Relief Valve I Displacement Pump Motor TN Bidirectional Check Valve Flow Control T Valve eil Hydraulic Port Fixed Orifice Filter Screen lt 3 Way 2 Position SITT Reservoir Shuttle Valve Vented L AL e gt 69 86 1000 PSI e 3 o 1250 PSI Page 36 F HYDRAULICS Hydraulic Diagram and Parts List BF3248Y and BF3748Y Description BF3248Y BF3748Y Cylinder 1514 3 Compact C1514 3 9800 C1514 3 9800 Cylinder 1514 3 Compact C1514 3 9900 C1514 3 9900 Pump Power Unit Hydraulic RA300 31698 12V or 24V 31698 12V or 24V Hose Assembly 6 1 8 Dia SW SW 16004A 006 Hose Assembly 10 1 8 Dia SW SW 16004A 010 Hose Assembly 12 1 8 Dia SW SW 16004A 012 Hose Assembly 12 1 8 Dia SW SW 16004A 012 Hose Assembly 16 1 8 Dia SW SW 16004A 016 Hose Assembly 28 1 8 Dia SW SW 16004A 028 Hose Assembly 1 8 Dia SW SW 16004A 036 Elbow 45 7 16 20 7 16 20
31. be mounted near the driver The control switch may be part of a panel providing other features and controls power on off indicators LED s etc Make electrical connections as shown in Figure K page 19 Strip wires crimp and install contacts as specified in instructions sup plied with 8 pin Deutsch connec tor A WARNING Route cables clear of exhaust system other hot areas and moving parts Failure to do so result in serious bodily injury and or property damage The Positive battery lead wire must be protected by an in line 30 ampere fuse or circuit breaker installer pro vided Cable Clip Do not connect the power battery lead wire to the battery until all other connec tions are made Connect the 8 pin Deutsch male plug to the mating Deutsch connector mounted at the back of the pan Carefully connect the power battery lead wire to the Positive battery post Vehicle Floor Risk of electrical shock Use extra care when making electrical connec tions AWARNING Risk of electrical fire Use extra when making electrical connections Page 18 Secure all cables using cable ties and or cable clips mount clips with self tap screws Cable typical n Cable Tie 4 Vehicle Floor Framing Member Self Tap Screw Chassis Ground Corrosion When mounting chassis gr
32. ction B hydraulically drives cylinder to stow ramp When the ramp s platform reach es the Drift Out limit approx 45 above ground level and deacti vates the microswitch the current to the Stow Relay will be inter rupted Y Models Only When the ramp s platform reaches the Drift In limit approx 15 above vehicle floor level the micro Switch is activated and the current to the Stow Relay is interrupted thus stopping the current to the pump motor The platform then drifts downward to the vehicle floor The Drift Out microswitch is also deactivated during the stow movement of the platform SYSTEMS DESCRIPTIONS Electrical Continued Drift In Microswitch Cam 1 All RA300 Models Turn Cam 1 counter clockwise to start Drift In function sooner shut pump off Turn Cam 7 clockwise to start Drift In function later allow ramp to stow further before pump shuts off Drift Out Microswitch Cam 2 All RA300 Models Turn Cam Z2 clockwise to start Drift Out function sooner shut pump off Turn Cam Z2 counter clockwise to start Drift Out function later allow ramp to deploy further before pump shuts off Counter Microswitch Cam 3 All RA300 Models Turn Cam 3 clockwise to start Interlock sooner Turn Cam 3 counterclockwise to return Interlock signal later Power Down Microswitch Cam 3 YP Models Only Turn Cam 3 clockwise to
33. d within the Deploy Drift Out range during Stow function REMEDY Activate Stow function until ramp is out of the Deploy Drift Out range Then activate Deploy function 2 30 Pump Runs But Doesnt Deploy Physical obstruction 20 Ib or more on ramp Mechanical binding Deploy pressure relief valve setting too low Low hydraulic fluid supply Note Fluid should be changed if there is visible contamination Inspect the hydraulic system for leaks if fluid level is low Leak in hydraulic system Cylinder leak Deploy pressure relief valve stuck open due to contamination or other wise damaged Pump internal shuttle valve stuck or damaged Remove obstruction Check and correct Adjust relief valve setting See Systems Descriptions for details Use Braun 32840 QT Exxon Univis HVI 26 hydraulic fluid do not mix with Dex tron III or other hydraulic fluids Check oil level with ramp fully deployed See Systems Descriptions for details Repair Replace Contact Braun Product Support replace pump Contact Braun Product Support replace pump 2 40 Faulty or Sluggish Operation Lack of lubrication drive arm as sembly pivot pins and shaft Misalignment or damage to Drive arm and or pivot pins Linkage arms and or pivot pins Drive arm and cam gear shaft Oylinder rack gear and or cam gear Mechanical binding Restriction in hydraulic lines Hydraulic fluid too thick due to cold climate
34. drifts too fast adjust applicable Drift Micro switch Cam so drift begins at reduced height Correct as needed Perform all procedures listed in previous section also Remove sub floor pan cover and clean dirt and other foreign debris Remove sub floor pan cover and lubricate drive arm gear and cylinder gear rack Remove sub floor pan cover and inspect Pump mounting bolts for securement loose or missing Drive arm and gear rack weldment teeth for foreign objects wear or damage bent deformed misaligned positive securement and proper operation Gear rack weldment pin securement E clip loose or missing Hydraulic cylinder hoses fittings and con nections for wear damage or leaks Harness cables wires terminals and con nections for securement or damage Relays for securement or damage Microswitches and cams for securement and adjustment Microswitch wires and terminals for secure ment or damage Blow out with air compressor Clean and lubricate Apply Door Ease Resecure adjust microswitches replace dam aged parts or otherwise correct as needed MAINTENANCE LUBRICATION continued Consecutive 8 Week or 200 Cycle Intervals Hydraulic Fluid Pump Check level Note Fluid should be changed if there is visible contamination Inspect the hydraulic system cylinder hoses fittings seals etc for leaks if fluid level is low Insp
35. e extra attention Specified lubricants are available from The Braun Corporation part numbers provided on page 20 Recommended Intervals These intervals are a general guideline for scheduling maintenance pro cedures and will vary according to ramp use and conditions Transit agencies operating vehicles equipped with ramps that are not monitored by cycles may choose to have the ramp system main tained on the same schedule as the vehicle routine maintenance Doing so ensures the AWARNING Maintenance lu brication procedures must be performed as specified by an authorized service technician Failure to do so may result in serious bodily injury and or property damage ramp is being main tained regularly When servicing the ramp at the consecutive recom mended intervals inspection and lubrication proce dures specified in the previous sections should be performed repeated listed inspection lubrication and maintenance procedures should be repeated at 8 Weeks or 200 Cycles intervals following the scheduled 1 Year 1250 Cycles maintenance Lifts exposed to severe conditions weather environ ment contamination heavy usage etc may require inspection and maintenance procedures to be per formed more often than specified Discontinue ramp use immediately if maintenance and lubrication procedures are not properly performed or if there is any sign of wear damage or im
36. e hydraulic system cylinder hoses fittings Seals etc for leaks if fluid level is low Deploy and Stow Pressure Relief Valves These adjustments on the pump unit limit the maximum oil pressure in the System to a safe level It also keeps the amp draw and battery drain at a minimum when the cylinders reach full stroke The Deploy pressure relief valve is preset at 1000 psi The Stow pressure AWARNING Contact The Braun Corporation before adjusting hydraulic relief valve is preset at 1250 psi Do not tamper with this adjustment unless absolutely necessary will not stow or deploy ramp and then only after contacting The Braun Corporation Note The fixed nut on each adjustment Allen screw is positioned to limit oil pressure to a maximum Deploy relief valve maximum 1450 psi and Stow relief valve maximum 1700 psi Do not attempt to loosen or remove the outer fixed nut pressure relief valve Failure to do so may result in serious bodily injury and or property damage Relief Valve Access The ramp pan cover sub floor must be removed to access the relief valve access hole not provided Relief Valve Adjustment Procedure E Hex Jamb Nut P Insert a 3 16 Allen wrench into the Allen screw Secure the Allen screw and loosen the hex jam nut inside nut Back jam nut out to outer fixed nut Note Do not attempt to loosen or remove the outer fixed nut Stow Pressure Relie
37. ect vehicle to ramp wiring harness Mounting Decals and Antiskid Repeat all previously listed inspection lubrica tion and maintenance procedures at 8 week or 200 cycle intervals or per vehicle maintenance schedule Use Braun 32840 QT Exxon Univis HVI 26 hydraulic fluid do not mix with Dextron Ill or other hydraulic fluids Check fluid level with ramp deployed fully Fill to within 1 2 of the bottom of the 1 1 2 fill tube neck Resecure repair or replace or otherwise correct as needed Check to see that the ramp is securely an chored to the vehicle and there are no loose bolts broken welds or stress fractures Replace decals if worn missing or illegible Replace antiskid if worn or missing Page 23 SYSTEMS DESCRIPTIONS Electrical A WARNING Improper microswitch adjustment sult in serious bodily injury and or property 4 Microswitches Three Switches limit switches are incorporated in the RA300 Ramp electrical system Y ramp mod els microswitches are Drift In Drift Out and Counter The YP ramp model also has three micro Switches Drift In Drift Out and Power Down Activation Details and photos of the microswitches are provided below Adjust microswitch es as detailed if necessary only Microswitch Sequence Stowed Position When the ramp is in the stowed posi tion the Drift Out and Counter m
38. eshooting Diagnosis Chart AWARNING Troubleshooting repair procedures must be performed as specified by an authorized service technician only Failure to do so may result in serious bodily injury and or property damage FUNCTION SYMPTOM 1 10 No Power To Ramp Circuit Problem 1 00 NO OPERATION If a problem occurs with your ramp discontinue operation immediately Contact your sales representative or call The Braun Corporation at 1 800 THE One of our national Product Sup port representatives will direct you to an authorized service techni cian who will inspect your ramp The cause of the problem can be determined by locating the lift function and related symptom in the Troubleshooting Diagnosis POSSIBLE CAUSE Battery terminals dirty Chassis ground connection frame ground cables Battery damaged Battery discharged 25 ampere in line fuse faulty Power cable Vehicle Interlock s circuit incomplete Vehicle to ramp wiring harness Chart The specific cause and remedy can then be determined by process of elimination Wiring Diagrams Electrical Schematics Hydraulic Diagrams and Hydrau lic Schematics are provided to aid in troubleshooting A Repair Parts section with an exploded view and corresponding parts list is also provided Correct the problem if possible If the problem continues contact The Braun Corporation REMEDY Clean and tighten Clean and
39. f Valve 2 Place load on platform equal to weight not lift ing B AS Allen Screw 3 Turn the Allen screw clockwise until pump lifts the load 4 Secure the Allen head screw and tighten the hex jam nut inside nut securely Deploy Pressure Figure P Relief Valves Page 26 SYSTEMS DESCRIPTIONS Drift IN and OUT Cam Adjustment Procedures Y Ramp Models Only RA300 ramp models featuring gravity down deploy and stow drift are equipped with adjustment cams BF3248Y and BF3748Y Adjust drift speed as detailed below not applicable for YP models Drift OUT Speed Cam 1 Drift out cam controls the speed that the ramp moves when the ramp is almost fully deployed and the motor shuts off 1 Loosen the set screw in the drift out cam 2 Rotate clockwise to slow down the deployment and counter clockwise to speed up the deploy ment of the ramp 3 Tighten set screw 4 Test deployment speed QUU t Drift IN Speed Cam 2 QUU Drift in cam controls the speed that the ramp moves when the ramp is almost fully stowed and the motor shuts off JH 1 Loosen the set screw in the drift in cam 2 Rotate counter clockwise to slow down the stow ing and clockwise to speed up the stowing of the ramp 3 Tighten set screw 4 Test stow speed Clockwise Counter Clockwise lt 27 TROUBLESHOOTING Troubl
40. f equipped function as intended Do the lift cargo door securement devices function as intended if equipped _ Does the ramp safely clear the cargo door as the ramp is deployed and stowed __ Does the ramp operate smoothly no jerking or abnormal movement _ Does the ramp operate at normal speed Is the lift power source adequate Do the drive arms clear the ramp and housing Is ramp operation quiet no rattles abnormal sounds etc Are the ramp posted decals worn missing or illegible Is the ramp antiskid in place worn or damaged _ Can you visually detect any ramp wear damage misalignment hydraulic leaks loose bolts broken welds or any abnormal conditions Post Trip Inspection Operate ramp minimum one complete cycle and check each of the above daily pre trip inspec tions if applicable for your daily inspection routine outlined by your transit agency Clean ramp surfaces where wheelchairs travel _ Clean and lubricate key locations based on ramp usage frequency and climate conditions outlined by your transit agency Lubrication procedures should be performed by transit agency maintenance personnel Page 43 Providing Access to the World Over 300 Braun Dealers Worldwide a THE BRAUN AJ a CORPORATION Providing Access to the World International Corporate Hdqrs PO Box 310 Winamac IN 46996 USA 1 800 THE LIFT 574 946 6153 FAX
41. h ADA ramp slope requirements Outboard Support Tube The portion of the floor where the ramp mounts must slope at an ap proximate 8 angle Outboard Support Tube Page 15 RAMP INSTALLATION Floor Pocket Clear Opening Dimensions In Right Clear Door Opening Width Dimension DL Left Out As viewed from outside the vehicle Vehicle chassis floor pocket configuration must be aligned cen ter with door opening Door s must open outward Page 16 RAMP INSTALLATION Installed Ramp Stowed Stowed RA300 Ramp positioned in the floor pocket In Right Installed Ramp Deployed D Left Out As viewed from outside the vehicle There must be a minimum 1 8 clearance between the deployed ramp assembly and the vehicle floor or any obstruction on the floor such as a rubber sill or threshold Page 17 RAMP INSTALLATION EE Electrical Connections An 8 pin Deutsch connector is mounted at the back of the RA300 ramp A mating connector male plug is supplied with the ramp The power supply 12 volt or 24 volt the ground a ramp OUT signal and a ramp IN sig nal must be terminated in the supplied Deutsch connector The ramp installer provides an appropriate control switch for the end user A momentary contact ramp control switch center off will typically
42. hair occupant remember to use good body me chanics When the wheelchair is on the ramp the attendant must grasp the push handles or other securely Detachable wheelchair parts such as arms or leg rests must never be used for hand holds or lifting supports Doing So could result in the parts being inadvertently detached from the wheelchair resulting in possible injury to the wheelchair occu pant and or the attendant RAMP INSTALLATION Safety Symbols SAFETY FIRST Know That A All information contained in this manual and supplements if included is pro vided for your safety Familiarity with proper operation instructions as well as proper maintenance procedures are necessary to en sure safe trouble free operation Safety precautions are provided to identify potentially hazardous situations and provide instruction on how to avoid them AWARNING This symbol indicates important safety information regarding a potentially hazard ous situation that could result in serious bodily injury and or property damage ACAUTION This symbol indicates important information regarding how to avoid a hazardous situation that could result in minor person al injury or property damage D Note Additional information provided to help clarify or detail a specific subject These symbols will appear throughout this manual Recogni
43. icroswitches are deactivated common and normally closed terminals have continuity In contrast the Drift In microswitch is activated Deploy Sequence When the ramp is in the stowed position the Drift Out microswitch is deacti vated Current is allowed to pass from the vehicle Deploy Relay which directs current to the Bidi rectional Pump motor in direction A hydraulically drives cylinders to deploy ramp When the ramp s platform reach es the Drift In limit approx 45 above ground level the micro Switch is activated common and normally open terminals have continuity and the current to the Deploy Relay is interrupted thus stopping the current to the pump motor The platform then drifts Page 24 downward to ground level during which at some position the Drift Out microswitch is activated The Drift In microswitch is deactivated during the deploy movement of the platform Note however that neither of the other 2 micro Switches have any bearing on the deploy sequence Deployed Position When the ramp is in the deployed posi tion the Drift Out and Counter microswitches are activated In contrast the Drift In microswitch is deactivated Stow Sequence When the ramp is in the deployed posi tion the Drift In microswitch is deactivated allowing current to pass from the vehicle Stow switch circuit and energize the ramp Stow Relay which directs current to the Bidirectional Pump motor in dire
44. instructions prior to operating the ramp If this information is not fully understood contact The Braun Corporation immedi ately Failure to do so may result in serious bodily injury and or property damage Preventive Maintenance Maintenance is necessary to ensure safe and trouble free operation General preventive maintenance consisting of care ful inspections and cleaning the ramp system should be a part of your transit agency s daily service program Simple inspections can detect potential operational problems Regular preventive maintenance will reduce potential operation downtime and increase the service life of the ramp as well as possibly detecting potential hazards A generic Daily Preventive Main tenance Schedule is provided in this manual for your transit agen cy s use The form can be tailored to your particular application Exposure to harsh weather en vironmental conditions or heavy usage may require more frequent maintenance and lubrication procedures Preventive maintenance visual inspections do not take the place of the procedures specified in the Maintenance and Lubrication Schedule provided in this manual Refer to the Maintenance and Lubrication section in this manual for further details Page 9 RAMP OPERATION EE Ramp Power Operation The power ramp is attendant operated and activated by the control switch provided by the vehicle con verter ramp
45. it vehicles floor pocket mount ing hole built into the chassis floor system allows for simple in stallation accepts drop in unit The Floor Pocket Clear Open ing Dimensions are specified on pages 15 and 16 See Figures B C D and E The ramp installer must provide an appropriate framework in the applicable location in the vehicle aligned center with passenger door opening Ramp assembly mounting hardware and or brack ets are directly dependant upon the vehicle chassis and floor Page 14 pocket configuration not sup plied Slope The portion of the floor where the ramp mounts must slope at an approximate 8 angle see Figure C Outboard Support Tube An outboard support tube must be positioned under the outboard edge of the opening minimum 1 1 2 x 2 steel tube See Fig ures C and D The recommended height of the support tube is 12 above ground level Kneeling Vehicles This dimension mea sured with suspension lowered ADA Installations with the sup port tube positioned higher than 12 above ground level may not comply with ADA ramp slope requirements Some OEM chassis meet these specifications The RA300 ramp was designed to conform to these specifications The ramp pan horizontal bor der lip sets on the floor pocket perimeter framework sub floor etc The finished flooring can be cut to conform to the border of the pan for a flush transition surface from ramp to floor
46. mp owner s manual in ramp mounted vehicle at all times Maintenance and lubrication procedures must be performed as specified in this manual by authorized certified service personnel Never modify alter a Braun Corporation ramp Do not use accessory devices not authorized by The Braun Corporation Do not remove any guards or covers If the information contained in this manual is not fully understood contact The Braun Corporation immediately Failure to follow these safety precautions may result in serious bodily injury and or prop erty damage Page 7 RAMP OPERATION EE Pre Operation Notes and Details The RA300 Ramp provides vehicle access to people with disabilities wheelchair passen gers or standees using other type mobility aids The commercial oriented RA300 Ramp is operated by the transit vehicle driver atten dant Unless your transit agency has a published policy stating that driver attendants do not aid ramp passengers safe entering and exiting of ramp passengers is the responsibility of the driver attendant As stated in the Ramp Operation Safety section all information in this manual is provided for the safety of passengers attendants and bystanders Recognize the seriousness of this information Read and become familiar with all ramp operation safety precau tions pre operation notes and details operating instructions and manual operating instructions before attempting ramp ope
47. n Cylinder 1514 3 Compact BF3248YP C1514 3 9800 Cylinder 1514 3 Compact C1514 3 9900 Pump Power Unit 12V Hydraulic RA300 33364 Switch Pressure 31199 Hose Assembly 8 1 8 Dia SW SW 16004A 008 Hose Assembly 10 1 8 Dia S W SW 16004A 010 Hose Assembly 12 1 8 Dia SW SW 16004A 012 jo N Hose Assembly 16 1 8 Dia SW SW 16004A 016 Hose Assembly 20 1 8 Dia SW SW 16004A 020 Hose Assembly 22 1 8 Dia SW SW 16004A 022 Hose Assembly 26 1 8 Dia SW SW 16004A 026 Elbow 45 7 16 20 7 16 20 SAE Male O Ring 24505 Elbow 7 16 20 M O Ring 37 25085 Fitting 7 16 20 7 16 20 37 24504 Page 39 REPAIR PARTS Description Pan Weldment BF3248Y BF00267WY BF3748Y BF37304WY BF3248YP BF00267WY Drive Arm Left Weldment BF00261LWBKN BF00261LWBKN BF00261LWBKN Drive Arm Right Weldment BF00261RWBKN BF00261RWBKN BF00261RWBKN Gear Rack Weldment RA40402WBKN RA40402WBKN RA40402WBKN Bearing Strip RA40105 RA40105 RA40105 Bearing Flange 3 4 x 1 4 12FDU04 24012 24012 24012 Pin Cylinder Mount BF00067 BF00067 BF00067 Pin Cylinder Rack RA40002 RA40002 RA40002 lO Cylinder 1514 3 Compact C15
48. ned to remain upright and stable during normal opera tion All activities which involve movement in a wheelchair have an effect on the combined center of gravity of the occupant and wheelchair Be aware of the ramp slope angle The slope of the ramp has a direct effect on the center of gravity The wheelchair passenger s center of gravity and their ability to maintain stability and balance must be kept in mind by the wheelchair passenger and the attendant The aid of an attendant stabilizing the wheelchair is recommended for optimum safety Wheelchair passengers who are unable to maintain stability and balance should not board a ramp without assistance Counterbalance devices anti tippers may be available from the wheelchair rep resentative to enhance stability and balance Wheelchairs should be operated at a slow and constant speed when on the ramp Wheelchairs should not accelerate suddenly when on the ramp Wheelchair passengers should not raise the front wheelchair wheels pull wheelie when on the ramp Wheelchair passengers who intend to enter and exit the vehicle without the assistance of an attendant must determine the safest and most practical method and orientation of entering and exiting based on the physical characteristics of their personal wheelchair and his or her physical capabilities to maintain stability while the wheelchair is in motion on the ramp Wheelchair Attendants When assisting a wheelc
49. ng the deploy cycle When deploying the ramp the motor stops running when the ramp reaches an ap proximate 45 angle The ramp continues to slowly lower the remaining distance by the force of gravity Ramp model numbers with suffix Y are hydraulic fold with gravity down drift feature when deploy ing and stowing When stowing the ramp and it folds inward be yond the 15 shut off point gravity lowers the ramp to the pan Ramp model numbers with suf fix are hydraulic powered throughout the stow cycle to full stow The hydraulic system re mains pressurized while the ramp is in the stowed position The pressure relief valves built into the pump prohibit the ramp from lifting raising with approxi mately 20 pounds or more on the ramp Instructions are provided for manual operation of the ramp in event of power or equipment failure See Manual Override on the following page for further details Read and become familiar with all operation safety precautions pre operation notes and details operating instructions and manual operating instructions before at tempting operation Terminology Become familiar with the terminology that will be used throughout this manual Become familiar with the iden tification of RA300 components and their functions Contact your sales representative or call The Braun Corporation at 1 800 THE LIFT if any of this information is not fully understood Direction The term
50. of any special needs and or procedures required for safe transport of wheelchair passengers Do not attempt to load or unload a passenger in a wheelchair or other apparatus that does not fit on the ramp Do not exceed the 660 pound 300 kilograms load capacity of the ramp Passengers should enter and exit one at a time The attendant should not board the ramp with the passenger except when assistance is required and the load capacity is not exceeded Always return the ramp to the stowed position when not in use Keep clear of area in which ramp operates Gravity Down Drift Deploy Gravity Down Drift All RA300 models When deploying unfolding the ramp the ramp pump motor stops running when the ramp reaches an approximate 45 angle shut off point The ramp continues to slowly lower the remaining dis tance by the force of gravity non powered Allow the ramp to unfold deploy fully before boarding the ramp Forcing the ramp out or down during the deploy unfold function or boarding onto the ramp before it is fully deployed may re sult in damage to the ramp and or drive assembly Page 10 Stow Gravity Down Drift Y ramp models only When stowing the ramp and it reaches an approxi mate 15 angle shut off point gravity lowers the ramp to the pan floor Note Pump motor shut ACAUTION off points are microswitch Allow ramp to deploy adjustable fully before boarding
51. orized by Braun or if as determined solely by Braun the ramp is damaged through accident misuse or abuse or altered in any way THIS WARRANTY IS IN LIEU OF ALL IMPLIED WARRANTIES INCLUDING WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE PERFORMANCE OR OTHERWISE WHICH ARE HEREBY EXCLUDED IN NO EVENT SHALL BRAUN BE LIABLE FOR ANY DAMAGES WHETHER DIRECT IMMEDIATE INCIDENTAL FORESEEABLE CONSEQUENTIAL OR SPECIAL ARISING OUT OF OR IN CONNECTION WITH ITS PRODUCT To contact Braun or to obtain a list of Braun authorized dealers call 1 800 THE LIFT or visit our web site at www braunlift com The Braun Corporation Winamac Indiana Return Authorization Procedure When processing any warranty claims parts repairs all requests must be processed through The Braun Corporation Product Support Department Call 1 800 THE LIFT during normal working hours Product Support will issue a Return Material Authorization RMA number and detail the procedures required for processing returns and or authorizing credit The ramp identification information is provided on the Braun Serial No Series No identification tag and the two warranty cards supplied with ramp The lift identification information must be provided when filing a warranty claim or ordering parts g A THE BRAUN Amm CORPORATION Providing Access to the World International Corpora
52. ound cables remove undercoating dirt rust etc from the framing member around the mounting holes Apply a protective coating to mounting holes to prevent corrosion Apply grease to ground cable terminals and mounting hardware Failure to do so will void warranty of certain electrical components RAMP INSTALLATION Electrical Connections An 8 pin Deutsch connector male plug is supplied with the ramp The ramp installer provides an ap propriate momentary contact control switch TO VEHICLE GROUND TO USER CONTROL SIGNAL TO STOW RAMP TO USER CONTROL SIGNAL TO DEPLOY RAMP MOMENTARY SWITCH lt TO POWER SOURCE 30 AMP CURCUIT PROTECTION DEVICE O USER CONTROL SIGNAL IGNITION MANUAL RELEASE BF3248YP ONLY lt TO SIGNAL TO RAMP STOW INDICATOR TO SIGNAL TO RAMP DEPLOY INDICATOR 8 pin Deutsch Male Plug supplied with ramp 8 pin Deutsch Connector ramp equipped Terminate the power supply ground ramp OUT signal and ramp IN signal as specified in legend A WARNING Positive battery lead wire must protected by installer provided 30 The Positive battery lead wire must be protected by an in line 30 ampere fuse or circuit breaker installer provided ampere fuse or circuit breaker Failure to do so may result in serious bodily injury and or property damage BF3248Y amp BF3748Y CONNECTOR P1 BF3248YP B C 3
53. proper operation Contact your sales representative or call The Braun Corporation at 1 800 THE LIFT One of our national Product Support representatives will direct you to an authorized service technician who will inspect your ramp Maintenance and Lubrication Schedule Inboard ramp hinge Outboard ramp hinge 8 Weeks or 200 Cycles Drive arm and cam gear pivot shaft continued Drive arm pivot pins screws nuts and bearings Clean and lubricate Apply Light Oil See Lubrication Diagram Clean and lubricate Apply Light Oil See Lubrication Diagram Apply Light Oil See Lubrication Diagram Apply Light Oil See Lubrication Diagram Page 21 MAINTENANCE and LUBRICATION continued 8 Weeks or 200 Cycles Page 22 Cable at pulley and hinge areas Drive arm slot Inspect drive arm pivot points mounting Screws nuts and bearings for positive secure ment wear or damage Inspect drive arm slots for excessive wear or damage Clean ramp and ramp mounting area ensure no debris in area to obstruct stowing stacking Cycle ramp and observe drift speed during deploy and stow functions Inspect ramp for wear damage or any abnor mal condition Clean and lubricate Apply Light Oil See Lubrication Diagram Apply Door Ease See Lubrication Diagram Tighten replace or correct as needed Correct as needed Clean and remove debris or obstructions If
54. ra tion procedures or assisting ramp passengers boarding and exiting the vehicle Ramp Access Doors and Interlocks Attendants must become familiar with the vehicle ramp access door System and interlock s as well as the proper operation of the ramp Vehicle ramp access door con figurations and operation proce dures vary Ensure the ramp door is fully open before activating the ramp an interlock typically pre vents ramp operation unless the door is fully open Attendants and passengers must keep clear of the area in which the power door operates Ensure the path is clear before closing the door Be sure the door is fully closed before attempting to drive the ve hicle interlocks typically ensure this Page 8 Interlocks are required by nearly all transit authorities Vehicle interlocks typically prevent vehicle motion if the ramp is not stowed In some cases the ramp cannot be operated if interlock conditions are not met Interlock require ments may include the vehicle transmission must be engaged in Park the parking brake must be engaged the ramp access door must be fully open and or others Multiple interlocks may exist Instructions for operation of interlocks and door systems will not be addressed in this manual due to the variety of procedures required for operating them General instructions for safe operation of the ramp are pro vided Ramp safety and ramp passenger safety information is
55. s left right and out will be used throughout this manual to indicate direction as viewed from the out side of the vehicle looking directly at ramp Refer to the Termi nology Illustrations for clarification of direction terms RAMP TERMINOLOGY Ramp Components Refer to the Terminology Illustra tions on pages 2 and 3 Pan Weldment Housing The pan is the stainless steel casing mounted in the vehicle floor system which contains the hydraulic pump and electrical components that power the ramp electric hydraulic systems The fixed sub floor cover protects the components from above The cover is easily removed for ac cess to drive components The sub floor provides an antiskid surface for entry and exit when the ramp is deployed The RA300 stows folds onto the sub floor providing an unobstructed antiskid surface for entry and exit when the ramp is not in use Ramp Assembly The ramp assembly is made of an inboard ramp section stage one and an outboard ramp section stage two Each aluminum ramp sec tion features vertical side plates and full antiskid surface Drive Arm Assembly The cylinder driven three stage drive arm assembly deploys and stows the ramp assembly Ramp Actions and Functions Deploy Deploy is the action of the ramp assembly extending and unfolding to ground level when the DEPLOY OUT switch is activated installer supplied
56. sabilities wheelchair pas sengers or standees using other type mobility aids The commer cial oriented ramp is ADA compli ant dependant upon installation height See the Installation sec tion for ADA specifications The self contained drop in unit requires no remote pump exter nal hydraulic lines or pre assem bly The hydraulic and electrical components are internal and eas ily accessible A single electrical feed provides the power supply 12 volt or 24 volt the ground a ramp OUT signal a ramp IN signal 4 and various indicator signals The 0 features a 32 wide ramp in a 34 wide package A floor pocket built into the chas sis floor system allows for simple installation dimensional require ments specified in the Installation section The RA300 is specifically de signed to be operated by an attendant The ramp installer provides an appropriate control switch for the end user Con squently the operating instruc tions contained in this manual are generic due to the limitless variables Page4 The RA300 provides fully auto matic operation of ramp functions The electric hydraulic system is controlled by two relays which ac tivate the hydraulic pump in oppo site directions for deploy and stow functions powering a dual acting hydraulic cylinder No sensitive electronic controls or sensors are required for operation All RA300 ramp models feature gravity down drift duri
57. te Hdqrs PO Box 310 Winamac IN 46996 USA 33778 March 2007 1 800 THE LIFT 574 946 6153 FAX 574 946 4670 gt 2 2890 5 Gescriptions Specifications in dra Ds132 D latasi produsi information avaiable a tne time of publication Us braun ves i12 fieri O Han y fus wiinous ois Bo E SI Tne Srt Corporation
58. tighten See Chassis Ground Corrosion on page 18 Replace Charge battery Replace fuse Check for loose terminals or broken wire Correct or replace Disconnect harness from ramp Using volt meter test probe 8 pin Deutsch male plug terminals as follows Pin A 412 24 V Pin B Ground Pin C V when Stow switch is activated Pin D V when Deploy switch is acti vated 1 20 Power to Ramp But No Pump Operation 2 00 2 10 DEPLOY No Out Operation continued continued Page 28 Ramp wiring harness Faulty relay s Loose connection s Broken wire s Wire terminal s See 1 00 Drift Out Microswitch out of adjust ment or damaged Drift Out Microswitch harness dis connected damaged or otherwise damaged Pump motor brushes worn Remove relays from sockets Using volt meter test probe wires terminals at relay sockets Red 412 24 Black Ground Blue V when Stow switch is activated Orange V when Deploy switch is activated Replace Clean and tighten Repair Crimp tightly to wire See Microswitches in Systems Descrip tions for details Connect repair or replace Contact Braun Product Support replace pump TROUBLESHOOTING FUNCTION continued 2 00 DEPLOY Out SYMPTOM continued 2 20 Locked in Intermediate Position No Response to Deploy Switch No Drift Out POSSIBLE CAUSE Ramp was stoppe
59. ting ramp AWARNING any abnormal condition AWARNING AWARNING and unload clear of vehicular traffic AWARNING AWARNING Page 6 Inspect ramp before operation Do not operate ramp if you suspect lift damage wear or Keep operator and bystanders clear of area in which the ramp operates Do not overload or abuse The rated capacity is 300 kilograms 660 pounds RAMP OPERATION Ramp Operation Safety Precautions continued AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING AWARNING Do not activate control switch es when anyone is near the area in which ramp operates It is the responsibility of the attendant to oversee and assist ramp passengers The wheelchair passenger and or attendant must ensure the ramp is fully deployed before exiting the vehicle Attendants must never operate the vehicle the ramp or attend to passengers if intoxi cated Intoxicated passengers should not be allowed to board the vehicle Wheelchair passengers must position and secure buckle engage fasten etc the wheelchair equipped occupant seat belt before loading onto the ramp Be aware of the ramp slope angle Wheelchair passengers should not raise front wheelchair wheels pull wheelie when on the ramp The wheelchair must be positioned in the center of the ramp when loading and unloading Keep ra
60. us bodily injury and or property damage ACAUTION This symbol indicates important information regarding how to avoid a hazardous situation that could result in minor person al injury or property damage D Note Additional information provided to help clarify or detail a specific subject These symbols will appear throughout this manual Recognize the seriousness of this information Ramp Operation Safety Precautions AWARNING the ramp operating instructions manual operating instructions and or ramp operation safety precautions are not fully understood contact The Braun Corporation immedi ately Failure to do so may result in serious bodily injury and or property damage AWARNING AWARNING AWARNING AWARNING Read manual and supplement s before operating ramp Read and become familiar with all safety precautions pre operation notes and details operating instructions and manual operating instructions before operating the ramp Note All transit agency personnel drivers and ramp at tendants must read and become familiar with the con tents of this manual and supplement s before operation Load and unload on level surface only Engage vehicle parking brake before operating ramp Provide adequate clearance outside the vehicle to accom modate the ramp before opening lift door s or operating ramp Open ramp door s fully and secure before opera
61. ut Panel DT 114020 90 30030 30030 30030 Washer Lock DT 114021 30031 30031 30031 Cable 3 16 Nylon Coated 1 8 Cable 84 BF00252A BF37410A BF00252A Nut 1 4 28 SS Hex BF00250 BF00250 BF00250 Sheave 3 16 Rope Dia Zinc Bronze Bearing BF00254 BF00254 BF00254 Gas Spring 7 87 M8 x 1 25 Threaded 25 LB BF00255 BF00255 BF00255 Ring 3 8 Retaining Snap 13889 13889 13889 Mount Gas Spring BF00231BK BF00231BK BF00231BK Mount Sheave Gas Spring BF00245BK BF00245BK BF00245BK Pin Gas Spring Sheave BF00246 BF00246 BF00246 Ring 1 2 Ext Snap Auto Black 20946 20946 20946 Screw 410 32 x 1 2 BHSCS Auto Black 30375 30375 30375 Nylon Loop Manual Backup RA40507 RA40507 RA40507 Washer 10 Flat Auto Black 11541 11541 11541 Nut 10 32 with Lock Washer Auto Black 18349 18349 18349 Foot Rubber Adh Back 13 16 Sq Black 15759 15759 15759 Pan Top RA300 BF00269Y BF37411Y BF00269Y Antiskid Tape x21 30081 BF37407 30081 Antiskid x 2 25 30082 BF37408 30082 Antiskid __ x 22 Red Braun Logo 30084 BF37409 30084 Tag Serial Series Plastic 18548P 18548P 18548P Decal Danger Keep Clear 81819 8181
62. ze the seriousness of this information Read this manual and supplement s before performing instal Installation specifications and dimensions must be met Remove any obstructions within the ramp mounting operating Do not operate ramp prior to positive securement of the pan Check for obstructions such as gas lines wires exhaust etc before drilling or cutting during installation procedures Route all cables clear of exhaust system other hot areas Risk of electrical shock or fire Use extra care when making Installation Service Safety Precautions A WARNING AWARNING lation operation or service procedures If installation main A CAUTION tenance or repair procedures cannot AWARNING be completed area prior to beginning installation procedures actly as provided this manual or if the AWARNING instructions are not fully understood contact The Braun Corporation immedi so may result in moving parts wet areas etc serious bodily injury and or property A WARNING damage electrical connections Connect and secure as outlined in Installation Instructions and Wiring Diagrams AWARNING Meet all ramp positioning and clearance specifications as detailed in the Positioning and Clearance Checklist before operating ramp A WARNING Maintenance and repairs must be performed only by authorized service personnel AWARNING Perform maintenance and lubrication procedures ex
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