Braun Corporation RA300 Manual

Operator's/Installation/Service Manual
35883
December 2009
Braun RA300 Transit Ramp
Braun RA300 Transit Ramp
W
ARNING
ual
Man
Read manual
before operating,
installing or
servicing ramp.
Failure to do so
may result in
serious bodily
injury and/or
property damage.
®
"Providing Access to the World"
International Corporate Hdqrs: P.O. Box 310 Winamac, IN 46996 USA
1-800-THE LIFT®[phone] FAX: [phone]
®
for
Low-Floor Transit Vehicles
Commercial
Braun
RA300 Transit Ramp
Model BF3462Y
Braun
RA300 Transit Ramp
Model BF3462Y

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.
THE BRAUN CORPORATION
Ralph W. Braun
Chief Executive Officer
Sincerely,

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 - BF3462Y ................................. 32
Wiring Diagram - BF3462Y.......................................... 33
Hydraulics
Hydraulic Schematic - BF3462Y................................. 34
Hydraulic Diagram and Parts List - BF3462Y ........... 35
Repair Parts
RA300 Ramp Exploded View
Repair Parts List ....................................................... 36
Exploded View (Fold Out) .............................37A, 38A
Specifications and Dimensions ................... 37B, 38B

Page 2
RAMP TERMINOLOGY
Refer to the illustration below and the illustrations
on next page for identification of components and
clarification of direction terminology. Details regard-
ing lift model variations, terminology, direction and
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
Sub floor
(Fixed)
Inboard Ramp
(Stage One)
Outboard
Ramp
(Stage Two)
Drive
Arm
Drive
Arm
Assist
Chain
Manual
Release
Assembly

Page 3
Note: The assist chains,
electrical harness, sub floor
and transition threshold
plate removed from these
illustrations for clear view.
RAMP TERMINOLOGY
Ramp 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
Counter
Cam/Microswitch
Assembly
Pump
Ramp
Drive Arm
Manual
Release
Assembly
Cylinder
Cylinder
Pump
Manual
Release
lever
LEFT
RIGHT
OUT
IN
Manual
Release
Assembly

Page 4
Introduction
Braun RA300 Series transit
ramps are designed for use in
low-floor transit vehicles. The
RA300 provides vehicle ac-
cess to wheelchair passengers
or standees using other type
mobility aids. The commercial
oriented ramp is ADA compliant
(dependant upon installation
height). See the Installation
section for ADA specifications.
The self-contained “drop-in”
unit requires no remote pump,
external hydraulic lines or pre
assembly. The hydraulic and
electrical components are
internal and easily accessible.
A single electrical feed provides
the power supply (12 volt), the
ground, a ramp deploy signal
(+), a ramp stow signal (+) and
various indicator signals.
RA300 model BF3462Y features
a 34" wide ramp in a 36" wide
package. A “floor pocket” built
into the chassis/floor system
allows for simple installation (di-
mensional requirements speci-
fied in the Installation section).
The RA300 is specifically
designed to be operated by an
attendant. The installer provides
an appropriate control switch for
the end user. Consequently, the
operating instructions contained
in this manual are generic due to
the limitless variables.
The RA300 provides fully
automatic operation of ramp
functions. The electric/hy-
draulic system is controlled by
two relays which activate the
hydraulic pump in opposite
directions for deploy and stow
functions (powering dual-acting
hydraulic cylinders). No sensi-
tive electronic controls or sen-
sors are required for operation.
RA300 model numbers with
suffix "Y" are hydraulic fold
with gravity down "drift" feature
when deploying and stowing.
When deploying the ramp, the
motor stops running when the
ramp reaches an approximate
45° angle. The ramp continues
to slowly lower the remaining
distance by the force of gravity.
When stowing the ramp and
it folds inward beyond the 15°
shut off point, gravity lowers
the ramp to the pan.
The pressure relief valves built
into the pump prohibit the ramp
from lifting (raising) with ap-
proximately 40 pounds or more
on the ramp.
Instructions are provided for
manual operation of the ramp.
See Manual Operation on the
following page for further details.
Read and become familiar with
all operation safety precautions,
operation notes and details, op-
erating instructions and manual
operating instructions before
attempting 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 terms “left”,
“right”, “in” and “out” will be used
throughout this manual to indi-
cate direction (as viewed from
the outside of the vehicle looking
directly at the ramp). Refer to
the Terminology Illustrations for
clarification of direction terms.
RAMP TERMINOLOGY

Page 5
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 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 unfolding to ground
level when the DEPLOY (OUT)
switch* is activated (*installer
supplied).
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: A cable-acti-
vated manual release engages
and disengages the hydraulic
system. A T-handle is provided
for activation of the manual
release. Pulling the T-handle out
pushes a pump valve to release
pressure (turn T-handle to lock in
released position). Disengaging
the hydraulic system allows the
ramp to be manually deployed
and stowed (hydraulic pressure
released). See Ramp Manual
Operation on page 11 for further
details.
RAMP TERMINOLOGY

Page 6
Ramp Operation Safety Precautions
W
ARNING
If 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.
Read manual and supplement(s) before operating ramp.
Read and become familiar with all safety precautions,
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.
W
ARNING
Inspect ramp before operation. Do not operate ramp if you suspect ramp damage, wear
or any abnormal condition.
Keep operator and bystanders clear of area in which the ramp operates.
Load and unload clear of vehicular traffic.
Open ramp door(s) fully and secure before operating ramp.
Do not overload or abuse. The rated capacity is 300 kilograms (660 pounds).
RAMP OPERATION
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
Safety Symbols
SAFETY FIRST! Know That....
C
CAUTION
This symbol indicates
important information
regarding how to
avoid a hazardous
situation that could
result in minor person-
al injury or property
damage.
A
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.
All information contained
in this manual and B
W
ARNING
This symbol indicates
important safety
information regarding
a potentially hazard-
ous situation that
could result in serious
bodily injury and/or
property damage.
DNote: Additional information provided to help clarify or detail a specific subject.
These symbols will appear throughout this manual. Recognize the seriousness of this information.

Page 7
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 ramp owner’s manual in ramp-equiped 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.
RAMP OPERATION
W
ARNING
Ramp Operation Safety Precautions
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING

Page 8
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).
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. Multiple interlocks
may exist.
Instructions for operation of
interlocks and door systems are
not be addressed in this manual
due to the variety of procedures
required for operating them.
It is the responsibility of the driver/
attendant to 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 wheelchair passengers or
standees using other type mobil-
ity aids. The commercial oriented
RA300 is operated by the transit
vehicle driver/attendant. Unless
your transit agency has a pub-
lished policy stating that driver/at-
tendants do not aid ramp passen-
gers, safe entering and exiting of
ramp passengers is the responsi-
bility of the driver/attendant.
General instructions for safe op-
eration of the ramp are provided.
Ramp safety and ramp passenger
safety information is included.
Read and become familiar with
all ramp operation safety precau-
tions, operation notes and de-
tails, operating instructions and
manual operating instructions
before attempting ramp operation
procedures or assisting ramp pas-
sengers boarding and exiting the
vehicle.
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

Page 9
W
ARNING
Read and become
familiar with all ramp
operation safety
precautions, pre-
operation notes and
details, operating
instructions and
manual operating
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.
The Braun Corporation recom-
mends that transit agency su-
pervisors and driver/attendants
review the safety precautions and
operation procedures provided in
this manual with the ramp sales
representative (or vehicle con-
verter) before attempting ramp
operation.
Any questions or concerns can be
addressed at that time. Operate
the ramp through all functions to
ensure proper use and operation
is understood.
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
the transit agency daily service
program. Simple inspections
can detect potential operational
problems.
Operation Procedure Review
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 man-
ual must be stored in the ramp-
equipped vehicle at all times.
Regular preventive maintenance
will reduce potential opera-
tion downtime and increase the
service life of the ramp, as well
as possibly detecting potential
hazards.
Exposure to harsh weather, en-
vironmental conditions, or heavy
usage may require more frequent
maintenance and lubrication
procedures.
Preventive Maintenance
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 for further
details.
RAMP OPERATION

Page 10
W
ARNING
Provide adequate
clearance outside
of vehicle to ac-
commodate ramp.
Failure to do so may
result in serious
bodily injury and/or
property damage.
Ramp Power Operation
The power ramp is attendant operated and activated
by the control switch provided by the vehicle con-
verter (ramp installer). A momentary contact switch
(center off) will typically be located near the driver.
The control switch may be part of a panel providing
other features and controls (power on/off indicators,
LED’s, etc.).
Be certain there is
adequate clearance
outside the vehicle
before deploying
the power ramp.
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 assist chains.
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 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.
CAUTION
Allow ramp to deploy
fully before boarding.
Failure to do so may
result in damage.
Deploy Gravity Down Drift:
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 result
in damage to the ramp and/or drive assembly.
Stow Gravity Down Drift:
When stowing the ramp and it reaches an approxi-
mate 15° angle (shut off point), gravity lowers the
ramp to the pan (floor).
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.
RAMP OPERATION
Power Ramp Safety
W
ARNING
Keep clear of
area in which
ramp operates.
Gravity Down Drift
Note: Pump
motor shut
off points are
microswitch
adjustable.

Page 11
T-handle Operation
Figure A
RAMP OPERATION
Ramp Manual Operation
Cable-Activated Manual Release
A cable-activated manual release engages and
disengages the hydraulic system. A T-handle is
provided for activation of the manual release (see
Figure A). Pulling the T-handle out pushes a pump
valve to release pressure (turn T-handle to lock
in released position). Disengaging the hydraulic
system allows the ramp to be manually deployed
and stowed (hydraulic pressure released).
Before Power Operation
Ensure the manual release is re-engaged before
power operation. Turn the T-handle and push the
T-handle in fully after manually operating the ramp.
The ramp cannot be power driven if the manual
release is released (T-handle out).
Manual Operation Safety
Two oval-shaped HAND HOLD slots are provided
on the ramp (see Figure B). Carefully deploy
(unfold) and stow (fold) the ramp using the HAND
HOLDS.
Keep clear of the area in which the hinged ramp
sections fold and unfold. Keep clear of the area
where the inboard ramp side plates stow in the
pan (floor). Keep clear of drive arms and assist
chains. 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 opera-
tion of the ramp 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
ramp.
For Power Operation:
1. Turn T-Handle.
2. Push T-Handle in fully.
Note: Turn and push T-handle in
before operating electric pump.
Note: Push
T-Handle in
before operating
electric pump.
Note:Push
T-Handlein
beforeoperating
electricpump.
Note:Push
T-Handlein
beforeop
erating
electricpump.
W
A
R
N
I
N
G
81823
PushT-handleinfullyand
manuallymoveplatformin
andouttoengageplatform
lockbeforedrivingvehicle.
Failuretol
ockplatformmay
resultinunintendedplatform
deployment.Unintended
platformdeploymentmay
resultinseriousbodilyinjury
and/orpropertydamage.
Donotremove!
MANUALOPERATION
TODEPLOYORSTOWRAMP:
1.PullT-Handle.
2.TurnT-Handletolockrampin
releasedposition.
3.UseHANDHOLDStodeploy
orstowramp.
FORPOWEROPERATION:
1.TurnT-Handle.
2.PUSHT-Handleinfully.
35908
MANUALOPERATION
TODEPLOYORSTOWRAMP:
1.PullT-Handle.
2.TurnT-Handleto lock rampin
releasedposition.
3.UseHANDHOLDStodeploy
orstowramp.
FORPOWEROPERATION:
1.TurnT-Handle.
2.PUSHT-Handleinfully.
35908
MANUAL OPERATION
TO DEPLOY OR STOW RAMP:
1. Pull T-Handle.
2. Turn T-Handle to lock ramp in
released position.
3. Use HAND HOLDS to deploy
or stow ramp.
FOR POWER OPERATION:
1. Turn T-Handle.
2. PUSH T-Handle in fully.
35908

Page 12
Ramp Passenger Safety
Unless your transit agency has a published policy
stating that driver/attendants do not aid ramp pas-
sengers, it is the responsibility of the driver/atten-
dant to ensure that ramp passengers 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. Intoxi-
cated passengers should not be allowed to board or
exit the vehicle.
Use HAND HOLDS to carefully
unfold and fold the ramp.
Keep clear of
hinged areas.
Figure B
Keep clear of area
where ramp side plates
stow in pan (floor).
Keep clear of
assist chains.
Ramp Manual Operation (continued)
RAMP OPERATION
Keep clear of
drive arms.
HAND HOLD
HAND HOLD
Side Plates
(2)
Note: Turn and push T-handle in
before operating electric pump.

Page 13
RAMP OPERATION
W
ARNING
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.
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 board-
ing and exiting the vehicle. The
attendant and/or wheelchair
passenger 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.
Stabilizing Wheelchairs: Pow-
ered and manual wheelchairs
are designed 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.
W
ARNING
Be aware of
ramp slope.
Ramp Passenger Safety
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 wheelchair 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 arm 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 occupant
and/or the attendant.

Page 14
W
ARNING
If installation, main-
tenance or repair
procedures cannot
be completed ex-
actly as provided in
this manual or if the
instructions are not
fully understood,
contact The Braun
Corporation immedi-
ately. Failure to do
so may result in
serious bodily injury
and/or property
damage.
W
ARNING
Read this manual and supplement(s) before performing instal-
lation, operation or service procedures.
Installation specifications and dimensions must be met.
Remove any obstructions within the ramp mounting/operating
area prior to beginning installation procedures.
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,
moving parts, wet areas, etc.
Risk of electrical shock or fire! Use extra care when making
electrical connections. Connect and secure as outlined in
Installation Instructions and Wiring Diagrams.
CAUTION
W
ARNING
W
ARNING
W
ARNING
W
ARNING
Installation / Service Safety Precautions
Safety Symbols
SAFETY FIRST! Know That....
C
CAUTION
This symbol indicates
important information
regarding how to
avoid a hazardous
situation that could
result in minor person-
al injury or property
damage.
A
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.
All information contained
in this manual and B
W
ARNING
This symbol indicates
important safety
information regarding
a potentially hazard-
ous situation that
could result in serious
bodily injury and/or
property damage.
DNote: Additional information provided to help clarify or detail a specific subject.
These symbols will appear throughout this manual. Recognize the seriousness of this information.
W
ARNING
Meet all ramp positioning and clearance specifications as detailed in the Installation In-
structions before operating ramp.
Maintenance and repairs must be performed only by authorized service personnel.
Perform maintenance and lubrication procedures exactly as outlined in the Maintenance
and Lubrication Schedule contained in this manual.
W
ARNING
W
ARNING
W
ARNING
RAMP INSTALLATION

Page 15
RAMP INSTALLATION
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).
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-
erty damage.
Installation/Service Safety Precautions
W
ARNING
Read this manual,
before performing
installation, operation
or service procedures.
Failure to do so may
result in serious
bodily injury and/or
property damage.
Installation Requirements
Braun RA300 Series transit
ramps must be installed and
serviced by a Braun authorized
service representative who has
attended and been certified by
The Braun Corporation Sales
and Service School for Braun
Mobility Products.
chassis and “floor pocket” con-
figuration (not supplied).
Slope: The portion of the floor
where the ramp mounts can
range in slope from 0° to 9.5°
(see Figure D).
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
Figures D and E. The recom-
mended height of the support
tube is 10-1/4" above ground
level. Kneeling Vehicles: Mea-
sured with suspension lowered.
ADA: Installations with the
support tube positioned higher
than 10-1/4" above ground
level may not comply with ADA
ramp slope requirements.
Some OEM chassis meet these
specifications. The RA300 is
designed to conform to these
specifications.
The ramp pan horizontal border
(lip) sets on the floor pocket pe-
rimeter, (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.
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
W
ARNING
Chassis Requirements
The RA300 is designed for use
in low-floor transit vehicles. A
“floor pocket” (mounting hole)
built into the chassis/floor system
allows for simple installation
(accepts “drop-in” unit). Floor
Pocket Clear Opening Dimen-
sions are specified on pages 16
and 17. See Figures C, D, E
and F.
The installer must provide an
appropriate framework in the
vehicle (aligned center with door
opening). See Figure G. Ramp
assembly mounting hardware
and/or brackets are directly de-
pendant upon the vehicle
Read and become familiar with
the contents of this manual
before beginning installation,
operation or service procedures.
W
ARNING

Page 16
RAMP INSTALLATION
Door Opening: Open the door(s)
fully and check the clear door
opening width dimension. Speci-
fied minimum clear door opening
width must be provided (39" for
34" 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
finished door opening, includ-
ing any intrusive door jambs,
headers, sills or hinges.
Obstructions: Any intrusive
obstructions within the door
opening or the ramp mounting/
operating area (such as seats,
molding, lights, brackets, etc.)
must be removed. Trim or
remove molding that creates an
uneven mounting surface 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 deployed
ramp assembly and the vehicle
floor or any obstruction on the
floor (such as a rubber sill or
threshold).
Outboard
Support Tube
“Floor Pocket” Clear Opening Dimensions
Figure C
Outboard Support Tube:
Recommended Height: 10-1/4"
above ground level. Kneeling
Vehicles: Measured with sus-
pension lowered.
29-1/4"
10-1/4"
Floor Slope = 0˚to 9.5˚
ADA: Installations with sup-
port tube positioned higher than
10-1/4" above ground level may
not comply with ADA ramp slope
requirements.
The portion of the floor where
the ramp mounts can range in
slope from 0° to 9.5°.
Figure D
Chassis
SUPPORT TUBE
Floor Pocket
Framework
Outboard
Support Tube
Figure E
36-1/4"
Note: Ramp assembly mounting hard-
ware and/or brackets are directly depen-
dant upon the vehicle chassis and “floor
pocket” configuration (not supplied).
Structure: Minimum
1-1/2” x 2” steel tub-
ing (or equivalent).
Installation Requirements (continued)
Fig
ure
C

Page 17
RAMP INSTALLATION
Chassis
SUPPORT TUBE
29-1/2"
36-1/4
"
Note: See Figure
C and D also.
Figure F
"Floor Pocket" Clear Opening Dimensions
As viewed from outside the vehicle
Left
Right
Out
In
Chassis
SUPPORT TUBE
Chassis
C
L
C
L
MINIMUM
DOOR OPENING
WIDTH = 39"
Figure G
Vehicle chassis “floor
pocket” configuration
must be aligned cen-
ter with door opening.
Door(s) must
open outward.
Clear Door Opening Width Dimension

Page 18
Chassis
Chassis
Chassis
Chassis
RAMP INSTALLATION
Installed Ramp - Stowed
Figure H
Installed Ramp - Deployed
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).
Figure J
As viewed from outside the vehicle
Left
Right
Out
In
Stowed RA300
positioned in the
“floor pocket.”