Drive DeVilbiss Healthcare Sentra User manual

Sentra Wheelchair
(STD20ECDDA-SFBLK, STD20ECDDATS-SFBLK,
STD22ECDDA-SFBLK, STD22ECDDATS-SFBLK,
STD24ECDDA-SFBLK, STD24ECDDATS-SFBLK)
Instructions for use

Page 2 of 12Sentra Wheelchair (Issued 2021-06 rev1)
introduction
The Sentra wheelchairs are intended to assist the transport of users
with mobility diculties. These wheelchairs are designed for occasional
or frequent use, and can be used indoors and outdoors. Over-loading
the wheelchair is the only known contraindication, although others may
be specific to an individual or care environment.
The wheelchair can be manually moved forward and in reverse. The
wheelchair is available as either a transit model, or a self propel model
to be operated by the wheelchair user. The wheelchair has a carbon
steel frame which can support users of up to 200 kg (32 stone).
parts description
The following models
of Sentra are available:
• Black Sentra with
transit wheels
• Black Sentra with
spoked self propel
wheels, quick-release
axle and drum
brakes.

Sentra Wheelchair (Issued 2021-06 rev1) Page 3 of 12
symbolspreparing for use
These instructions should be read carefully before using the wheelchair.
This product does not have a service manual. The only parts for user
assembly are the footrests.
A risk assessment must also be performed to assess suitability of the device
for the user. This assessment should include, but not be limited to:
• Small adults (and children)
• Users (and attendants) who lack capacity
• Very active occupants
• Unauthorised access to the wheelchair
Independent users and attendants are responsible for determining that they
are both mentally and physically capable of using the wheelchair with
minimal risk of harm.
Maximum occupant mass
Exceeding the maximum occupant mass marked on your device can damage
the product and put users at risk of harm.
Remove all packaging and stand the wheelchair on the ground. Separate the
arm rests to open the wheelchair, then push down firmly. Once the seat is
secure, the backrest is upright and the footrests are attached (see overleaf),
the wheelchair is ready for use.
!
Warning
This wheelchair must not be used as a seat in a motor vehicle.
Users should always transfer to the vehicle's seat and the
wheelchair should be safely stowed away.

Sentra Wheelchair (Issued 2021-06 rev1) Page 4 of 12
footrest adjustment
To fit the footrests, place each
footrest on the two receiver
posts on the frame. Then swing
the footrest inwards until it locks
in position.
To remove, press the chrome
lever whilst swinging the
footrest out (as shown left).
For optimum comfort it is
important to attain the correct
leg position.
Press the brass push buttons (right) and adjust the footplates to the desired
height. Release the buttons and keep adjusting the footplate until it locks in
position with an audible click.
Adjusting
the footrest
!
Common misuse
Do not stand on the footrests. Overloading can damage the
product and cause harm to the occupant.

Sentra Wheelchair (Issued 2021-06 rev1) Page 5 of 12
brake operation
Parking Brakes
To apply the parking brakes, push
the handle on the brake unit until
locked in place. To release the
brake, push the handle in the
opposite direction. The brakes
should always be applied when the
wheelchair is stationary.
Note: The brake on your wheelchair
model may be visually dierent from
that shown.
Drum Brakes
The attendant may use the cable-
operated drum brakes to slow or
park the wheelchair.
To apply the brakes, squeeze both
left and right brake handles and the
brakes will be applied until the
levers are released. Ensure both
levers are pulled simultaneously to
ensure the wheelchair travels in a
straight line.
Operating
parking
brakes
Operating
drum
brakes
Locking mechanism:
To lock the cable, push the lock tab
(B) forward. Pull back to release.

Page 6 of 12Sentra Wheelchair (Issued 2021-06 rev1)
transfer and use
!
Before using the wheelchair, read the safety notices below;
• Do not exceed the 10º maximum gradient. Use slow speeds
and do not reverse down a gradient.
• Do not use on escalators.
• The wheelchair is only suitable for single occupancy.
• Keep your feet on the footrests when moving. Do not stand on
the footrests.
• Ensure that fingers and objects do not get caught in the wheel
spokes or any other moving parts during use and assembly.
• Maintain proper balance at all times. Users should not move
their centre of gravity out of the seating area.
• Do not reach for items further than your arm’s length.
• Parking brakes should always be applied when transferring.
• Be aware of hazards in your environment, such as narrow
doorways, steps, household appliances, children’s toys, etc.
• A risk assessment must be performed by a competent person
to ensure the wheelchair is suitable for the user. We
recommend you consult a healthcare professional before using
any assistive medical devices.
• Keep away from heating and ignition sources which may raise
surface temperatures or cause a fire.
Transfer: When transferring in and out of the seat, move the seats as
close as possible to each other. Parking brakes should always be engaged
during transfer and attendants should fold away footrests. If users need to be
lifted out of a seat, attendants are responsible for being suitably trained and
competent to lift occupants with minimal risk of harm. Good health and safety
practice must always be used.
Propelling: Attendants should push from behind using the handgrips, and
following the safety advice above. Wheelchairs with transit wheels can only be
propelled by attendants. Models with self propel wheels can also be propelled
by wheelchair users, pushing the handrims on the rear wheels. To slow down,
apply reverse pressure to the push handles or handrims.
When stationary, the brakes should always be applied.

Page 7 of 12Sentra Wheelchair (Issued 2021-06 rev1)
steep terrain, kerbs and steps
Steep terrain: These wheelchairs are not designed for use on gradients
beyond 10°. When on a slope, avoid swerving or sudden changes in movement.
Over kerbs: Attendants push down on the stepper tube with a foot to raise
the front castors (when mounting a kerb for example).
To mount, approach the kerb head-on. Then the attendant uses the stepper
tube to raise the front castors, and lowers the front castors on the raised kerb.
Finally the attendant should push the wheelchair forward, lifting it up slightly to
mount the kerb if required.
To go down, line up the front castors with the edge of the kerb. The attendant
uses the stepper tube to raise the front castors and tip the user slightly back.
Keeping the castors raised, slowly lower the wheelchair down the kerb.
using a wheelchair belt
Belts are often used to restrain wheelchair occupants during normal use.
However, belts are not necessary parts of this device. Any belts used should
be adjusted to suit each user. When fastened, they should be tight without
causing discomfort or undue pressure. Belts may not be suitable for all users.
Seek professional medical advice before using a wheelchair belt.
!
Common misuse
Do not lean or push down on the push handles, as this can
damage the wheelchair.
!
Warning
When going down a kerb, the front castors must be raised to
prevent the user from falling out. The above are only
recommendations and may not be suitable for all events.
Multiple steps: The wheelchair is not designed to mount staircases, so may
require carrying if no elevators or ramps are available. Attendants are
responsible for being suitably trained and competent to lift the wheelchair with
minimal risk of harm. Do not carry using the handles or any removable sections.

Page 8 of 12Sentra Wheelchair (Issued 2021-06 rev1)
disassembly and storage
This wheelchair has a number of quick release components and the
wheelchair frame is easily foldable. This facilitates a light carry weight and
minimises storage space required. To disassemble for storage, transport or
maintenance, follow the steps below. To reassemble components, reverse
these instructions.
1. Quick Release Wheels
The self propel model also features quick
release wheels. To remove the wheels, press
the button in the centre of the wheel, (shown
on the Quick release button image) whilst
pulling the wheel away from the wheelchair.
To attach the wheel, press the button whilst
reinserting the quick release pin in to the
wheelchair frame.
2. Footrest Removal
Follow the previous instructions to
remove or swing out the footrests.
3. Armrest Removal
To remove the armrests, press the
chrome buttons at the front of the
armrest (arrowed) and pull up on the
armrest.
To replace the armrest, push the
armrest back in to the receivers and it will automatically lock.
4. Folding the wheelchair
Grab the centre of the front and rear edges of the seat sling.
Pull upwards on the seat sling and the wheelchair should naturally fold up.
Note: The wheelchair may be folded and stored in a motor vehicle.
The wheelchairshould be stored in a dry environment, away from direct
sunlight. If wheels are attached, store with the parking brakes on.
Removing the
armrest
Quick release
button
!Warning
Ensure the wheels are locked in position before use.

Sentra Wheelchair (Issued 2021-06 rev1) Page 9 of 12
care and maintenance
Do not use a damaged or badly worn wheelchair. Users should routinely check for
any malfunctions or changes in performance. Contact Drive DeVilbiss Healthcare
Ltd or your provider to replace damaged or worn parts.
• Brakes and tyres should be checked before each use, and at least once a month.
Slightly loosen and tighten the lock nut on the axle to correct any side play.
• The wheelchair should be kept dust free and cleaned at least once a week.
Upholstery and tyres can be cleaned with a damp cloth and mild soap solution.
Avoid neat bleach or abrasive surface cleaners. Leave to fully dry before reuse.
Metal parts should also be polished once a month with an auto wax. Replace
worn or torn upholstery promptly, as it may not support your body weight.
• Drive DeVilbiss Healthcare Ltd recommend that an approved service engineer
maintains the wheelchair annually, and these items should be repaired,
replaced, adjusted and/or lubricated if required:
•When the product has reached the end of its useful life, follow local recycling
and disposal policies.
• Tyres and castors
• Wheel bearings
•
•
Brakes
•
Footrest locking mechanism
Seat upholstery
•
•
Back upholstery
•
Arm pads
•
Rear wheel quick release pin
•
Back posts
Wheelchair folding mechanism
powerpack installation
This wheelchair is suitable for some retrofit
powerpacks, which allow the device to be
controlled electronically. (See Powerpack
example image.)
Powerpacks are not required to use the
wheelchair. The mounting position will need
adapting to be suitable for both the user and the
powerpack used. Any installed powerpack must
be used in line with the manufacturer’s instructions
for use.
For more information about powerpacks, contact
Drive DeVilbiss Healthcare Ltd or your local dealer.
Powerpack
example

Page 10 of 12Sentra Wheelchair (Issued 2021-06 rev1)
specification
Models
Self Propel with Drum Brakes Transit
STD20ECDDA
-SFBLK
STD22ECDDA
-SFBLK
STD24ECDDA
-SFBLK
STD20ECDDA
TS-SFBLK
STD22ECDDA
TS-SFBLK
STD24ECDDA
TS-SFBLK
Unfolded
height
92 cm
(36”)
92 cm
(36”)
92 cm
(36”)
92 cm
(36”)
92 cm
(36”)
92 cm
(36”)
Unfolded
length
115 cm
(45”)
115 cm
(45”)
115 cm
(45”)
100 cm
(39”)
100 cm
(39”)
100 cm
(39”)
Unfolded
width
72 cm
(28”)
77 cm
(30”)
82 cm
(32”)
65 cm
(26”)
70 cm
(28”)
75 cm
(30”)
Carton
height 95 cm 95 cm 95 cm 95 cm 95 cm 95 cm
Carton
length 88 cm 88 cm 88 cm 78 cm 78 cm 78 cm
Carton
width 33 cm 33 cm 33 cm 34 cm 34 cm 34 cm
Seat
surface
height at
front edge
53 cm
(21”)
53 cm
(21”)
53 cm
(21”)
53 cm
(21”)
53 cm
(21”)
53 cm
(21”)
Seat length 46 cm
(18”)
46 cm
(18”)
46 cm
(18”)
46 cm
(18”)
46 cm
(18”)
46 cm
(18”)
Seat width 51 cm
(20”)
56 cm
(22”)
61 cm
(24”)
51 cm
(20”)
56 cm
(22”)
61 cm
(24”)
Armrest
height 76 cm 76 cm 76 cm 76 cm 76 cm 76 cm
Total mass 24.5 kg 25 kg 25.5 kg 22 kg 22.5 kg 23 kg
Mass of
heaviest
part
16.5 kg 17 kg 17.5 kg 18 kg 18.5 kg 19 kg
Maximum
occupant
Mass
200 kg
(31 st)
200 kg
(31 st)
200 kg
(31 st)
200 kg
(31 st)
200 kg
(31 st)
200 kg
(31 st)