Braun RA300 Operator, Installation, Service Manual

Transit ramp

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Operator, installation, service manual (43 pages)

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Operator's/Installation/Service Manual

Braun

Commercial

RA300 Transit Ramp

RA300 Transit Ram

RA300

RA300 Transit Ramp

Transit Ramp

for Low-Floor Transit Vehicles

Models:

BF3248Y-2

BF3255Y-2

BF3455Y-2

BF3262Y-2

BF3462Y-2

BF3462Y-2PA

"Providing Access to the World"

International Corporate Hdqrs: P .O. Box 310

1-800-THE LIFT

(574) 946-6153

36502 Rev B

March 2012

Winamac, IN 46996 USA

FAX: (574) 946-4670

W ARNING

Read manual

before operating,

installing or

servicing ramp.

Failure to do so

may result in

serious bodily

injury and/or

property damage.

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Page 1 Operator's/Installation/Service Manual Braun Braun Braun Braun Braun Braun Commercial Commercial RA300 Transit Ramp RA300 Transit Ram RA300 Transit Ramp RA300 RA300 Transit Ramp Transit Ramp Transit Ramp for Low-Floor Transit Vehicles for Low-Floor Transit Vehicles Models: Models: BF3248Y-2 BF3248Y-2 BF3255Y-2...
Page 2 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.
Page 3: Table Of Contents
CONTENTS Ramp Terminology Maintenance and Lubrication Ramp Terminology Illustration ........2 Lubrication Diagram ........... 22 Ramp Components Terminology Illustration ..... 3 Maintenance and Lubrication Schedule ....23-25 Introduction ..............4 Ramp Components ............5 Microswitch Adjustment ........26, 27 Ramp Actions and Functions ........5 Depoly and Stow Pressure Adjustment ....
Page 4: Ramp Terminology
RAMP TERMINOLOGY Ramp Terminology Illustration Refer to the illustration below and the illustrations ing lift model variations, terminology, direction and components are provided on pages 4 and 5. Manual Weldment Release (Fixed) Assembly Drive Inboard Ramp (Stage One) BF3462Y-2PA: Dash line depicts exclusive (typical both sides) BF3462Y-2PA:...
Page 5: Ramp Components Terminology Illustration
RAMP TERMINOLOGY Ramp Components Terminology Illustration Pump Counter Cylinder Cylinder Manual Relays Release Assembly Cam/Microswitch Assembly Pump Manual Ramp Release Manual Drive Arm lever Release Assembly Counter Cylinder Pump Relays Weldment Cam/Microswitch Cylinder Assembly Pump Manual Release lever RIGHT Note: The assist chains, Ramp and transition threshold LEFT...
Page 6: Introduction
RAMP TERMINOLOGY Introduction Instructions are provided for Braun RA300 Series transit The RA300 provides fully ramps are designed for use in automatic operation of ramp manual operation of the ramp. functions. The electric/hy- See Manual Operation on the fol- lowing page for further details.
Page 7: Ramp Components
Each aluminum ramp sec- (casing) mounted in the vehicle the ramp is deployed. The tion features vertical side plates RA300 stows (folds) onto the sub and full antiskid surface. hydraulic pump and electrical components that power the ramp antiskid surface for entry and exit Drive Arm Assembly: electric/hydraulic systems.
Page 8: Ramp Operation
Load and unload on level surface only. contact The Braun Corporation immedi- Engage vehicle parking brake before operating ramp. ately. Failure to do so may result in serious...
Page 9 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. erty damage.
Page 10: Ramp Access Doors And Interlocks
Ramp safety and ramp passenger any abnormal condition. Dis- ity aids. The commercial oriented safety information is included. continue use immediately and RA300 is operated by the transit contact The Braun Corporation vehicle driver/attendant. Unless Read and become familiar with at 1-800-THE LIFT ®...
Page 11: Operation Procedure Review
RAMP OPERATION Operation Procedure Review The Braun Corporation recom- Transit agency supervisors mends that transit agency su- should train and educate all pervisors and driver/attendants driver/attendants on the proper Read and become review the safety precautions and use and operation of the vehicle,...
Page 12: Ramp Power Operation
RAMP OPERATION Ramp Power Operation The power ramp is attendant operated and activated Before operating the ramp, park the vehicle on a by the control switch provided by the vehicle con- verter (ramp installer). A momentary contact switch vehicle transmission in “Park” and engage the (center off) will typically be located near the driver.
Page 13: Ramp Manual Operation
RAMP OPERATION Ramp Manual Operation Cable-Activated Manual Release Manual Operation Safety A cable-activated manual release engages and Two oval-shaped HAND HOLD slots are provided disengages the hydraulic system. A T-handle is on the ramp (see Figure B). Carefully deploy provided for activation of the manual release (see (unfold) and stow (fold) the ramp using the HAND Figure A).
Page 14: Ramp Passenger Safety
RAMP OPERATION Ramp Manual Operation (continued) Figure B Keep clear of area Handles (2) Keep clear of where ramp side plates Keep clear of drive arms. assist chains. Keep clear of hinged areas. Side Plates Use Handles and Hand Holds to carefully unfold and fold the ramp.
Page 15 RAMP OPERATION Ramp Passenger Safety W ARNING Position and fasten Be aware of the wheelchair- ramp slope. equipped occupant seat belt before loading onto the wheelchair ramp. Failure to do so may result in serious Stabilizing Wheelchairs: Pow- Wheelchair passengers who bodily injury and/or ered and manual wheelchairs intend to enter and exit the...
Page 16: Ramp Installation
Do not operate ramp prior to positive securement of the pan. instructions are not fully understood, Check for obstructions such as gas lines, wires, exhaust, etc. contact The Braun before drilling or cutting during installation procedures. Corporation immedi- ately. Failure to do...
Page 17: Installation Requirements
Disconnect the power cable at the battery prior to servicing. Keep hands, arms and all other body parts clear of moving parts. Never modify (alter) a Braun Corporation ramp. Replacement parts must be Braun authorized replacements. Never install screws or fasteners (other than factory equipped).
Page 18: Door Opening
RAMP INSTALLATION Installation Requirements (continued) Door Opening: Open the door(s) Minimum Clear Door Opening remove molding that creates an fully and check the clear door uneven mounting surface should opening width dimension. Speci- be removed. The molding can width must be provided (see next headers, sills or hinges.
Page 19 RAMP INSTALLATION Floor Pocket Clear Opening Dimensions RA300 RAMP MODEL BF3248Y-2 BF3255Y-2 BF3455Y-2 BF3262Y-2 BF3462Y-2 BF3462Y-2PA Right Figure D Left As viewed from outside the vehicle Door(s) must open outward. Figure E must be aligned center with door opening. Page 17...
Page 20 RAMP INSTALLATION Installed Ramp - Stowed Figure F Stowed RA300 positioned in the Right Installed Ramp - Deployed Left As viewed from outside the vehicle Figure G There must be a minimum 1/8” clearance st be a minimum 1/8” clearance...
Page 21 BLANK for LAYOUT Page 19...
Page 22: Electrical Connections
RAMP INSTALLATION Electrical Connections The ramp installer provides an appropriate control switch for the end user. A momentary contact Route cables clear ramp control switch (center off) of exhaust system, will typically be mounted near other hot areas and the driver. The control switch moving parts.
Page 23: Electrical Connections Illustration
RAMP INSTALLATION Electrical Connections An 8-pin Deutsch connector is mounted at the front of the ramp pan (see Figure J). A mating 8-pin Deutsch connector (male plug) is supplied with the ramp. Terminate the power supply, the ground, DEPLOY signal (+), DE- CONNECTOR - P1 PLOY indicator, STOW signal (+) (B.C.# 30136)
Page 24: Maintenance And Lubrication
MAINTENANCE and LUBRICATION Lubrication Diagram Gear and Inboard Gear Rack Ramp Hinge (internal) Outboard Ramp Hinge (concealed) Assist Chain Assemblies Drive Arm and Cam Gear Shaft (after Smooths or 1500 Cycles) Drive Arm Slot Chains Note: See the Maintenance/Lubrication Schedule for recommended applications per number of cycles or elapsed time.
Page 25: Maintenance And Lubrication Schedule
Use of improper lubricants can attract dirt or improper operation. Contact your sales represen- other contaminants which could result in wear or tative or call The Braun Corporation. One of our damage to the components. Ramp components national Product Support representatives will direct...
Page 26 MAINTENANCE and LUBRICATION Chains at gears and chain assist assemblies Clean and lubricate. Apply Light Oil - See continued Lubrication Diagram Drive arm slot Apply Door-Ease. See Lubrication Diagram Inspect drive arm pivot points (mounting Tighten, replace or correct as needed. screws, nuts and bearings) for positive secure- ment, wear or damage Cycles...
Page 27 MAINTENANCE and LUBRICATION continued Hydraulic Fluid (Pump) - Check level. Note: ® Fluid should be changed if there is visible Univis HVI 26). Do not mix with Dextron III or contamination. Inspect the hydraulic system 1500 Cycles Inspect vehicle-to-ramp wiring harness Resecure, repair or replace or otherwise correct as needed Mounting...
Page 28: Microswitch Adjustment
MICROSWITCH ADJUSTMENT Microswitches: Three micro- switches (limit switches) are incorporated in the RA300 electri- Improper microswitch cal system. Ramp microswitches adjustment may re- are: Drift-In, Drift-Out and Coun- sult in serious bodily injury and/or property detailed (if necessary only). damage.
Page 29 MICROSWITCH ADJUSTMENT Drift In Microswitch (Cam 1) Figure K Turn Cam 1 counter-clockwise to start Drift In function sooner (shut pump off). Turn Cam 1 clockwise to start Drift In function later (allow ramp to stow further before pump shuts off). Drift Out Microswitch (Cam 2) Figure L Turn Cam 2 clockwise to start Drift Out function sooner...
Page 30: Depoly And Stow Pressure Adjustment
DEPLOY and STOW PRESSURE ADJUSTMENT Hydraulics B-3202-0106 Hydraulic Pump: Hydraulic Fluid: Use Braun fully deployed. Fill to maximum Fixed displacement external gear ® type hydraulic pump with 12 VDC Univis HVI 26). Do not mix with electric motor and 76 cubic inch...
Page 31: Troubleshooting
2.00 2.10 Connect, repair or replace 2.13 Drift Out Microswitch harness dis- DEPLOY connected, damaged or otherwise Operation (Out) damaged Contact Braun Product Support - replace 2.14 Pump motor brushes worn pump continued continued Page 29...
Page 32 2.35 Leak in hydraulic system Repair 2.36 Cylinder leak Replace. 2.37 Deploy pressure relief valve stuck Contact Braun Product Support - replace open due to contamination or other- pump wise damaged 2.38 Pump internal shuttle valve stuck or Contact Braun Product Support - replace...
Page 33 3.40 3.42 Stow pressure relief valve setting Pump Runs too low Descriptions for details. 3.00 3.43 Stow pressure relief valve stuck Contact Braun Product Support - re- STOW Doesn’t open due to contamination or other- place pump (In) Stow wise damaged 3.50...
Page 34: Electrical Schematic
CIRCUIT PROTECTION BATTERY GROUND DEVICE MOTOR (30 AMP.) * RECOMMENDED WIRE GUAGE COUNTER RA300 TRANSIT RAMP ASSEMBLY DRAWING SHOWN WITH RAMP IN STOWED POSITION 12 GA. RD 12 GA. BK "DRIFT IN" MICROSWITCH STOW RELAY 14 GA. OR/BK 14 GA. OR/BK 12 GA.
Page 35: Wiring Diagram
TROUBLESHOOTING Wiring Diagram Page 33...
Page 36: Hydraulics
HYDRAULICS Hydraulic Schematic Cylinder, Double Description Symbol Acting Pump, Bidirectional Relief Valve Displacement Pump Motor, Check Valve Bidirectional Flow Control Hydraulic Port Valve Fixed Orifice Filter Screen Reservoir, 3 Way 2 Position Vented Shuttle Valve “B” “A” .033 .020 69 BAR 86 BAR 1250 PSI 1000 PSI...
Page 37: Hydraulic Diagram And Parts List
Cylinder - 1514.3 - Compact C1514.3-9801 Cylinder - 1514.3 - Compact C1514.3-9901 Pump - Power Unit - Hydraulic - RA300 35572-12V Elbow - 45* - 7/16-20 + 7/16-20 SAE Male O-Ring 24505 Tee - 7/16 O-Ring BRANCH - 7/16 M. JIC37*...
Page 38: Repair Parts
FF00015 FF00015 FF00015 Drive Arm Link Weldment BF34201WBKN BF34201WBKN BF34201WBKN Harn-Stow/Deploy Microswitch BF34002A BF34002A BF34002A Harn-Counter/Signal Microswitch BF34003A BF34003A BF34003A Harn-Counter Adapter BF34004A BF34004A BF34004A Harn-Main Assy BF34001A BF34001A BF34001A Parts Package-RA300 BF34264A BF34264A BF34264A Item not shown Page 36...
Page 39: Exploded View (Fold Out)
EXPLODED VIEW 41 or 42 Page 38A Page 37A...
Page 40: Exploded View (Fold Out)
EXPLODED VIEW NOTE Illustration depicts BF3462Y-2PA only. NOTE NOTE 41 or 42 Page 37B Page 38B...
Page 41: Repair Parts List
FF00015 FF00015 FF00015 Drive Arm Link Weldment BF34201WBKN BF34201WBKN BF34201WBKN Harn-Stow/Deploy Microswitch BF34002A BF34002A BF34002A Harn-Counter/Signal Microswitch BF34003A BF34003A BF34003A Harn-Counter Adapter BF34004A BF34004A BF34004A Harn-Main Assy BF34001A BF34001A BF34001A Parts Package-RA300 BF34264A BF34264A BF34264A Item not shown Page 39...
Page 42 SPECIFICATIONS and DIMENSIONS Ramp Platform Alteration Pan Alteration (BF3462Y-2PA) (BF3462Y-2PA) Pan Alteration Stowed View Dimensions - BF3462Y-2PA Pan Alteration (BF3462Y-2PA) Page 40...
Page 43 SPECIFICATIONS and DIMENSIONS Deployed View Dimensions Power Unit: Hydraulic Pump Module 12 VDC 30 Amps (Max) +12 Volt Supply (-) Ground Ramp “Out” Signal (+) Ramp “In” Signal (+) Interlock Signal Mounting holes/brackets per application Stowed View Dimensions DIMENSIONS BF3248Y-2 BF3255Y-2 BF3455Y-2 BF3262Y-2...
Page 44 BLANK for LAYOUT Page 41B Page 42B...
Page 45 "Providing Access to the World" ® Over 300 Braun Dealers Worldwide ® "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 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.

This manual is also suitable for:

Bf3248y-2 Bf3255y-2 Bf3455y-2 Bf3262y-2 Bf3462y-2 Bf3462y-2pa

Braun RA300 Operator, Installation, Service Manual

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