Braun BF3248Y-2 Operator, Installation, Service Manual Download Page 3

Page: 3 / 46

Page 1

CONTENTS

Ramp Terminology

Ramp Terminology Illustration

.................................... 2

Ramp Components Terminology Illustration

............. 3

Introduction

................................................................... 4

Ramp Components

........................................................ 5

Ramp Actions and Functions

....................................... 5

Ramp Operation

Ramp Operation Safety

Safety Symbols ......................................................... 6

Ramp Operation Safety Precautions ..................... 6, 7

Operation Notes and Details

Ramp Access Doors and Interlocks .......................... 8

Operation Procedure Review .................................... 9

Preventive

Maintenance

............................................ 9

Ramp Operation

Ramp Power Operation............................................ 10

Ramp Manual Operation .....................................11, 12

Ramp Passenger Safety .................................... 12, 13

Ramp Installation

Installation/Service Safety

Safety Symbols ....................................................... 14

Ramp Operation Safety Precautions ................. 14, 15

Installation Instructions

Installation

Requirements......................................... 15

Chassis

Requirements

............................................. 15

Door

Opening

........................................................... 16

Obstructions

............................................................. 16

Installation

Illustrations

........................................ 16-18

Electrical

Connections

.............................................. 20

Electrical Connections Illustration ............................ 21

Maintenance and Lubrication

Lubrication Diagram

................................................... 22

Maintenance and Lubrication Schedule

.............. 23-25

Microswitch Adjustment

.................................... 26, 27

Depoly and Stow Pressure Adjustment

.................. 28

Troubleshooting

Troubleshooting Diagnosis Chart

........................ 29-31

Electrical Schematic

................................................... 32

Wiring Diagram

........................................................... 33

Hydraulics

Hydraulic Schematic

.................................................. 34

Hydraulic Diagram and Parts List

............................ 35

Repair Parts

BF3248Y-2, BF3255Y-2, BF3455Y-2

Repair Parts List ....................................................... 36

Exploded View (Fold Out) ............................ 37A, 38A

BF3262Y-2, BF3462Y-2, BF3462Y-2PA

Exploded View (Fold Out) .............................37B, 38B

Repair Parts List ....................................................... 39

6SHFLÀFDWLRQVDQG'LPHQVLRQV

............. 40, 41A, 42A

Summary of Contents for BF3248Y-2

Page 1: ...the World International Corporate Hdqrs P O Box 310 Winamac IN 46996 USA 1 800 THE LIFT 574 946 6153 FAX 574 946 4670 for Low Floor Transit Vehicles Commercial Braun RA300 Transit Ramp Models BF3248Y...

Page 2: ...l includes operating instructions installation instructions servicing instructions and instructions for troubleshooting if needed Braun ramps are built for dependability and will provide years of serv...

Page 3: ...tions 14 15 Installation Instructions Installation Requirements 15 Chassis Requirements 15 Door Opening 16 Obstructions 16 Installation Illustrations 16 18 Electrical Connections 20 Electrical Connect...

Page 4: ...nd components are provided on pages 4 and 5 As viewed from outside the vehicle LEFT RIGHT OUT IN Ramp Terminology Illustration Vertical Side Plate Barrier Pan Weldment 6XE RRU Fixed Inboard Ramp Stage...

Page 5: ...Components Terminology Illustration Cylinder Pump Manual Release lever As viewed from outside the vehicle Pan Weldment Relays Counter Pump Ramp Drive Arm Cam Microswitch Assembly Cylinder Relays Count...

Page 6: ...nders No sensi tive electronic controls or sen sors are required for operation RA300 model numbers with VXI DUH K GUDXOLF IROG ZLWK JUDYLW GRZQ GULIW IHDWXUH when deploying and stowing When deploying...

Page 7: ...Drive Arm Assembly The cylinder driven two stage drive arm assemblies deploy and stow the ramp assembly Ramp Actions and Functions Deploy Deploy is the action of the ramp assembly extend ing and unfol...

Page 8: ...mp if you suspect ramp damage wear or any abnormal condition Keep operator and bystanders clear of area in which the ramp operates RDG DQG XQORDG FOHDU RI YHKLFXODU WUDI F Open ramp door s fully and s...

Page 9: ...f 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 unloadi...

Page 10: ...properly open and close the ramp access door s to activate interlock s and to properly activate the ramp power functions Ramp Access Doors and Interlocks The RA300 provides vehicle ac cess to wheelch...

Page 11: ...tenance consisting of care ful inspections and cleaning the ramp system should be a part of the transit agency daily service program Simple inspections can detect potential operational problems Operat...

Page 12: ...GRHV QRW W on the ramp Do not exceed the 1000 pound 454 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 e...

Page 13: ...mp also Read and become familiar with all ramp safety precautions To Manually Deploy or Stow Ramp 1 Pull T Handle 2 Turn T Handle to lock ramp in re leased position 3 Use HAND HOLDS to deploy or stow...

Page 14: ...transport of wheelchair passengers Follow all safety instructions regarding torso restraints stabil ity balance weight distribution and use of atten GDQWV DV VSHFL HG LQ WKH RZQHU V PDQXDO VXSSOLHG ZL...

Page 15: ...ramp has a direct effect on the center of gravity The wheelchair SDVVHQJHU V FHQWHU RI JUDYLW DQG their ability to maintain stability and balance must be kept in mind by the wheelchair passenger and...

Page 16: ...ce Safety Precautions Safety Symbols SAFETY FIRST Know That C This symbol indicates important information regarding how to avoid a hazardous situation that could result in minor person al injury or pr...

Page 17: ...e must be positioned under the outboard edge of the opening minimum VWHHO WXEH 7KH UHF ommended height of the support tube for each model is listed in the chart on page 17 Kneeling Vehicles Measured w...

Page 18: ...WR W DURXQG WKH ramp pan horizontal border lip 7KHUH PXVW EH D PLQLPXP clearance between the deployed ramp assembly and the vehicle RRU RU DQ REVWUXFWLRQ RQ WKH RRU VXFK DV D UXEEHU VLOO RU threshold...

Page 19: ...3248Y 2 BF3255Y 2 BF3455Y 2 BF3262Y 2 BF3462Y 2 BF3462Y 2PA Chassis SUPPORT TUBE B A Ground In Kneeled State Figure D Figure E As viewed from outside the vehicle Left Right Out In Chassis SUPPORT TUBE...

Page 20: ...a minimum 1 8 clearance between the deployed ramp assembly and WKH YHKLFOH RRU RU DQ REVWUXFWLRQ RQ WKH RRU VXFK DV D UXEEHU VLOO RU WKUHVKROG Figure G As viewed from outside the vehicle Left Right O...

Page 21: ...Page 19 BLANK for LAYOUT...

Page 22: ...ppropriate control switch for the end user A momentary contact ramp control switch center off will typically be mounted near the driver The control switch may be part of a panel provid ing other featu...

Page 23: ...njury and or property damage 8 pin Deutsch Male Plug supplied with ramp 8 pin Deutsch Connector ramp equipped TO USER CONTROL SIGNAL TO DEPLOY RAMP CONNECTOR P1 B C 30136 D A G E F C B H TO USER STOW...

Page 24: ...ivalent Penetrating Oil Aerosol Can Stainless Stick Door Ease 1 68 oz Style tube Stick tube Inboard Ramp Hinge LO Outboard Ramp Hinge concealed LO Gear and Gear Rack internal DE Note See the Maintenan...

Page 25: ...aintenance and lu brication procedures must be performed DV VSHFL HG E DQ authorized service technician Failure to do so may result in serious bodily injury and or property damage All listed inspectio...

Page 26: ...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...

Page 27: ...IRU OHDNV LI XLG OHYHO LV ORZ Inspect vehicle to ramp wiring harness Mounting Decals and Antiskid 8VH UDXQ 47 K GUDXOLF XLG RQ Univis HVI 26 Do not mix with Dextron III or RWKHU K GUDXOLF XLGV KHFN XL...

Page 28: ...tch 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 downward to...

Page 29: ...Drift Out Microswitch Cam 2 Turn Cam 2 clockwise to start Drift Out function sooner shut pump off Turn Cam 2 counter clockwise to start Drift Out function later allow ramp to deploy further before pu...

Page 30: ...FHGXUH W SLFDO IRU both valves 7KH UDPS SDQ FRYHU VXE RRU must be removed to access relief valves Relief Valve Adjustment Procedure 1 Insert a 3 16 Allen wrench into the Allen DGMXVWPHQW VFUHZ 6HFXUH...

Page 31: ...ttery 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 12V Pin B Gro...

Page 32: ...Out range during Stow function 2 31 Physical obstruction 20 lb or more on ramp 2 32 Mechanical binding 2 33 Deploy pressure relief valve setting too low RZ K GUDXOLF XLG VXSSO Note Fluid should be cha...

Page 33: ...wise damaged 4 51 See 2 40 4 61 See 2 40 and 2 50 4 71 See 2 35 2 36 and 2 62 GMXVW RU UHSODFH 6HH 0LFURVZLWFKHV LQ Systems Descriptions for details Connect repair or replace Activate Deploy function...

Page 34: ...RA300 TRANSIT RAMP ASSEMBLY POWER CONNECTIONS CONTROL SIGNALS PROVIDED BY INSTALLER SYMBOL KEY DRIFT OUT MICROSWITCH DEPLOY RELAY COUNTER 14 GA BL BK 12 GA 12 GA 12 GA RECOMMENDED WIRE GUAGE GROUND 1...

Page 35: ...2 COND WIRE CODE BLACK 20 GA RED 20 GA 2 1 COLOR PIN 2 COND WIRE CODE BLUE BLACK 14 GA BLUE BLACK 14 GA 1 2 COLOR PIN 2 COND WIRE CODE BLACK 20 GA RED 20 GA 2 1 2 1 COLOR PIN 2 COND WIRE CODE ORANGE...

Page 36: ...B A 020 Pump Motor Bidirectional Flow Control Valve Fixed Orifice 3 Way 2 Position Shuttle Valve M Description Symbol Reservoir Vented Relief Valve Check Valve Hydraulic Port Filter Screen 86 BAR 1250...

Page 37: ...9901 3 1 Pump Power Unit Hydraulic RA300 35572 12V RVH VVHPEO LD 6 6 RVH VVHPEO LD 6 6 RVH VVHPEO LD 6 6 7 4 Elbow 45 7 16 20 7 16 20 SAE Male O Ring 24505 8 2 Tee 7 16 O Ring BRANCH 7 16 M JIC37 876...

Page 38: ...2454 7DSH LGH 6 DFH RDP 5 5 5 LQJH XOO 6ZDJH 3HP 1XWV 36 36 36 6FUHZ KV XWR ODFN 55 1 Serial Tag Decal Assembly 34048A 34048A 34048A 56 1 Ramp Platform Stage 1 BF48285Y BF55285Y BF55288Y 7DSH DS 5 5 5...

Page 39: ...45 82 83 84 20 5 81 83 87 89 86 6 85 19 28 22 27 28 39 37 45 43 84 31 35 41 56 57 41 or 42 73 54 78 62 54 79 37 54 64 75 65 64 63 63 60 66 74 71 67 67 70 68 80 72 79 37 68 80 44 48 45 49 53 38 38 54...

Page 40: ...15 16 20 7 45 82 83 84 20 5 81 83 87 89 86 6 85 19 28 22 27 28 39 37 45 43 84 31 35 41 56 1 56 57 41 or 42 73 54 78 62 54 79 37 54 64 75 65 64 63 63 60 66 74 71 67 67 70 68 80 72 79 37 68 80 44 48 45...

Page 41: ...12454 12454 7DSH LGH 6 DFH RDP 5 5 5 LQJH XOO 6ZDJH 3HP 1XWV 36 36 36 6FUHZ KV XWR ODFN 55 1 Serial Tag Decal Assembly 34048A 34048A 34048A 56 1 Ramp Platform Stage 1 BF62285Y BF34285Y BF68285Y 7DSH...

Page 42: ...40 SPECIFICATIONS and DIMENSIONS M Pan Alteration Pan Alteration BF3462Y 2PA Pan Alteration BF3462Y 2PA Ramp Platform Alteration BF3462Y 2PA N P Q F R G E Stowed View Dimensions BF3462Y 2PA 6SHFL FDWL...

Page 43: ...0 38 700 38 700 C 32 125 32 125 34 125 32 125 34 125 34 125 D 33 800 33 800 35 800 33 800 35 800 35 800 E 3 660 3 660 3 660 3 660 3 660 3 660 F 26 600 29 070 29 070 31 720 31 720 31 720 G 9 140 9 140...

Page 44: ...Page 41B Page 42B BLANK for LAYOUT U n f o l d f o r R A 3 0 0 R a m p S p e c i c a t i o n s D i m e n s i o n s...

Page 45: ...Over 300 Braun Dealers Worldwide Providing Access to the World Providing Access to the World International Corporate Hdqrs P O Box 310 Winamac IN 46996 USA 1 800 THE LIFT 574 946 6153 FAX 574 946 4670...

Page 46: ...proved 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 recei...

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