Vela Samba Series User manual

VELA Tango, VELA Salsa and VELA Samba
VELA Samba
VELA Salsa
VELA Tango
SERVICE MANUAL
VELA chairs
EN
VERSION:

TABLE OF CONTENTS
1.0 TECHNICAL SERVICE 3
1.1 RIGHT OF COMPLAINT 3
2.0 CLEANING 4
2.1 CHAIRS WITH GAS SPRING HEIGHT ADJUSTMENT 4
2.2 CHAIRS WITH ELECTRIC HEIGHT ADJUSTMENT 4
3.0 MAINTENANCE 4
3.1 CHECKLIST FOR TESTING AND CHECKING 4
3.2 GENERAL 5
3.2.1 CASTORS 5
3.2.2 LUBRICATION OF INNER AND OUTER TUBES 5
3.2.3 WIRES 5
3.2.4 SEAT MECHANISM 5
3.2.5 SEAT AND BACKREST 5
3.2.6 ARMREST 5
3.2.7 ACCESSORIES 5
3.3 TROUBLESHOOTING CHAIRS WITH ELECTRIC LIFT 5
3.3.1 RECHARGING THE CHAIR BATTERY 5
3.3.2 THE ELECTRICAL FUNCTIONS DO NOT WORK 6
3.3.3 THE ELECTRIC LIFT GOES UP BUT WON’T GO DOWN 6
3.3.4 THE ELECTRIC LIFT GOES DOWN BUT WON’T GO UP 6
3.4 REPLACING COMPONENTS 6
3.4.1 RECOMMENDED TOOLS 6
3.5 ADJUSTING COMPONENTS 6
3.5.1 ADJUSTING BRAKE PRESSURE ON CASTORS 7
3.5.2 INTERVAL ADJUSTMENT 7
3.5.3 ADJUSTING ARMREST AND OTHER FUNCTIONS 7
3.5.4 ADJUSTING CLUTCH PLATES 7
3.6 EMC DETAILS FOR CHAIRS WITH ELECTRIC LIFT 8

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3
DEAR CUSTOMER
This service manual is for all models and variants
of VELA Tango, VELA Salsa and VELA Samba. Here
you will find useful information and technical
descriptions in relation to servicing the chairs.
1.0 TECHNICAL SERVICE
VELA oers to perform on-site service at selected
destinations. In addition, we oer technical support
during business hours through our customer
service, where technical sta can assist you with
troubleshooting, technical documentation and
repair questions. There is also a lot of helpful
information on our website: www.vela.eu
Contact VELA customer service:
by phone [phone] or email [email protected]
1.1 RIGHT OF COMPLAINT
VELA grants the right of complaint according to
the current law of the country in which the chair
was purchased. The right of complaint only applies
when using original spare parts and accessories,
when any customisations have been made by
professionals and when the chair has received
normal use according to the user manual. The user
manual is available on our website: www.vela.eu
In case of complaints or other enquiries about the
product, please provide the chair identification
number. This six-digit number can be found on a 6
x 2 cm silver-coloured label under the chair:

4
2.0 CLEANING
VELA chairs withstand thorough cleaning and can
be reused. We recommend that professionals
examine the chair following the checklist in section
3.1.Several of the items on the list are described in
further detail in section 3.0.
For instructions concerning regular cleaning,
please refer to the chair’s user manual, which is
available on our website: www.vela.eu
2.1 CHAIRS WITH GAS SPRING HEIGHT
ADJUSTMENT
Chairs with gas spring can be cleaned either with a
hard-wrung cloth or through chemical disinfection
with approved disinfectants.
We also recommend regular maintenance after
cleaning. This includes lubrication of inner and
outer tubes described in section 3.2.2.
2.2 CHAIRS WITH ELECTRIC HEIGHT
ADJUSTMENT
Chairs with electric height adjustment can be
cleaned either with a hard-wrung cloth or with
chemical disinfection using approved disinfectants.
3.0 MAINTENANCE
The purpose of a maintenance check is to identify
defective and worn parts and similar issues. The
following sections contain further details about the
checklist (section 3.1).
3.1 CHECKLIST FOR TESTING AND CHECKING
1. Frame 4. Brake function 7. Upholstery
2a. Column, gas spring
5. Seat mechanism
9. Electrical accessories
2b. Column, electrical
6. Armlene
10. Cleaning
3. Castors
8. Accessories
Inspect weldings
Inspect for factures
Tighten screws
Inspect brake function
Inspect weldings
Listen for bad sounds
Tighten screws
Inspect function of body support
Inspect function of push bar
Inspect function of head support
Inspect function of leg supports
Inspect function of thigh support
Inspect wires for damage
Lubrication of moving parts
Tighten screws
Listen for bad sounds
Charging function
Inspect rolling resistance
Inspect bearings for backlash
Tighten screws
Remove built-up dirt
Check function
Lubrication of moving parts
Inspect for wear
Tighten screws
Inspect all functions
Listen for bad sounds
Tighten screws
Lubricate moving parts (not the
lamellae)
Inspect function
Inspect weldings
Inspect for fractures
Tighten screws
Inspect surface/upholstery
Inspect seat unholstery
Inspect backrest upholstery
Inspect headrest upholstery
Inspect body support upholstery
Inspect loose seat covers
Electric brakes
Switches
Hand control unit
Upholstery
Frame
Armrests
Accessories

5
3.2 GENERAL
Place the chair on a level surface. Check that all
castors are in contact with the ground. If this is not
the case, the chair has one or more incorrectly
installed or defective castors, or a defective frame,
which must be replaced.
All welded components must be visually inspected
for cracks or fractures.
Parts with visible wear should be replaced.
3.2.1 CASTORS
It is recommended to check the castors regularly
and to wipe o any residual threads, etc. All castors
should also be tested for wear and tear in castor
bearings and swivel bearings. If there is noticeable
wear and tear in any castor, it must be replaced. It
is recommended to replace all castors at the same
time to ensure the chair rolls optimally.
3.2.2 LUBRICATION OF INNER AND OUTER
TUBES
It is recommended to regularly lubricate inner and
outer tubes on chairs with gas spring to ensure that
the chair can be easily raised and lowered. Follow
these steps:
• Raise the chair to its top position.
• Clean inner tube/gas spring with a degreaser.
• Apply lubricant (e.g. HHS2000) in an even layer
to all surfaces of the inner tube/gas spring.
• When the chair is subsequently raised and
lowered, the lubricant will be distributed to the
outer tube.
Chairs with electric lift are lubricated on the
inside by the factory and should not be wiped or
lubricated during the life of the chair.
3.2.3 WIRES
Check all wires and plugs for damage and loose
connections and replace damaged or defective
components. Please refer to the spare parts
drawing (available at www.vela.eu) for a wiring
chart of your model.
3.2.4 SEAT MECHANISM
The seat mechanism is located under the seat and
controls the seat-tilt feature. The release levers are
also mounted on this plate.
Inspect the seat mechanism for excessive wear and
tear as well as any noise during use. Noise in itself
is not dangerous but may indicate that something
else needs attention.
Moving parts should be lubricated, except for
clutch plates (see section 3.4.5). Clutch plates
should be cleaned of grease and dust and gently
lubricated at one end to prevent noise during use.
It is important to only lubricate one end, otherwise,
the clutch plate may lose function. After applying,
check that the lubricant does not run down to the
opposite end.
Loose screws must be identified and tightened.
Note: Do not tighten nuts described in section
3.5.4 unless experiencing seat or backrest angle
sliding, even when the release lever is not activated.
3.2.5 SEAT AND BACKREST
Check seat and backrest for worn upholstery. If
there is a hole in the upholstery, it is recommended
to replace the entire seat or backrest.
Make sure the seat is firmly secured by tilting it,
rocking from side to side, and back and forth. If
the seat seems loose, it is important to check and
tighten the screws that secure the seat.
3.2.6 ARMREST
Check the condition of the armrest padding and
replace it if there are cracks.
Check that all welds are intact and that hand
screws are suciently tight so that the armrest is
secure and stable.
3.2.7 ACCESSORIES
Check that the accessories are in proper condition
and securely mounted on the chair.
3.3 TROUBLESHOOTING CHAIRS WITH
ELECTRIC LIFT
The wiring for VELA chairs with electric lift can be
found on the spare parts drawing, which is available
on our website: www.vela.eu
3.3.1 RECHARGING THE CHAIR BATTERY
• Daily charging is recommended to extend the
battery life and ensure sucient power for
everyday use.
• If the light on the charger is not on when
plugged in, the charger must be replaced.
Please note: The chair must not be used during
charging.

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3.3.2 THE ELECTRICAL FUNCTIONS DO NOT
WORK
• Does the relay click when you press the switch?
No: Check if the fuse has blown (does not apply to
Tango 300E). The location of the fuse is shown on
the spare parts drawing for the specific model. If the
fuse has blown, replace the fuse and check all wires
thoroughly, as well as all the electrical functions of
the chair, e.g. up, down, and charge. If the fuse has
not blown, check that the chair battery is charging
properly (see section 3.3.1). If the battery is charging
properly, charge it for a longer time, e.g. overnight.
If it does not charge properly, check that all wires
are connected as shown in the spare parts drawing.
If it still does not charge properly, contact your VELA
distributor.
If the chair battery is fully charged, but the
functions are still not working, replace the switch,
spiral cable, motor control or the entire actuator.
The motor control unit is an integral part of the
actuator. Otherwise, contact your VELA distributor.
Yes: Check that the chair battery is charging properly
(see section 3.3.1). If the battery is charging properly,
charge it for a longer time, e.g. overnight. If it does
not charge properly, contact your VELA distributor.
If the battery is fully charged, but the functions are
still not working, replace the battery, spiral cable,
motor control or the entire actuator, or contact your
VELA distributor.
3.3.3 THE ELECTRIC LIFT GOES UP BUT WON’T
GO DOWN
Activate the end switch for downward lift function
by turning the adjusting screw a few times.
The adjusting screw is a galvanised screw that
requires a Philips screwdriver. It is located right next
to the column, near the bottom side of the seat
mechanism. See image:
(Does not apply to the Tango 300E)
3.3.4 THE ELECTRIC LIFT GOES DOWN BUT
WON’T GO UP
Check that the chair battery is charging properly
(see section 3.1.1). Check the voltage across the
batteries. Voltage must be at least 24V on a fully
charged battery. If it isn’t, replace the battery.
If this does not solve the problem, replace the
switch, spiral cable, motor control or the entire
actuator, or contact your VELA distributor.
3.4 REPLACING COMPONENTS
Regular service and maintenance may require
parts of the chair to be disassembled to inspect
individual components and provide access to other
components, and to replace spare parts. Detailed
assembly instructions with text and images are
available on VELA’s website (www.vela.eu), where
they are divided into model-specific instructions,
which include both standard configurations and
accessories. Some instructions also include video
tutorials.
3.4.1 RECOMMENDED TOOLS
Only a small number of tools are required to
disassemble a VELA chair. As a minimum, it is
recommended to always have the following tools
available in the toolbox:
• Allen key sizes 4, 5, and 6
• Small, flat-bladed screwdriver
• Philips screwdriver
• Shifting spanner up to 24 mm
• Fibre hammer/rubber hammer
• Lubricant, e.g. HSS2000
Several of the screws on VELA chairs are fitted with
locking glue from the factory to provide optimum
safety for use. Therefore, only use original screws
when replacing components to preserve locking
glue in the intended locations.
3.5 ADJUSTING COMPONENTS
REMEMBER: VELA chairs are medical devices and
the chair is customised for the individual user. Pay
special attention to the position settings of various
parts, such as the armrests, before carrying out
any work on them. An occupational therapist may
have decided on a precise setting for the user, so
settings should always be set as they were before
maintenance.

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3.5.1 ADJUSTING BRAKE PRESSURE ON CASTORS
(Does not apply to VELA Samba models)
The brake function works by clamping the wheel
thread, so it may be necessary to adjust the brake
pressure on a worn castor as follows:
• Remove the castor (see mounting instructions
on www.vela.eu).
• Tighten the inner plastic part of the castor a half
or a full turn with a shifting spanner (see image
below)
• Remount the castor.
3.5.2 INTERVAL ADJUSTMENT
(Does not apply to VELA Samba models and VELA Tango
300)
As part of the customisation, VELA chairs can be
adjusted in height beyond the range of the gas
spring and actuator. This may be necessary if the
user of the chair grows taller, or if the chair is to be
reused by another user. In this way, the seat height
of the chair may be increased or decreased further.
Interval adjustment instructions for each chair
model (including illustrations and procedure) are
available on our website: www.vela.eu
3.5.3 ADJUSTING ARMREST AND OTHER
FUNCTIONS
Several of the chair adjustment options are made
with hand screws so the user can set the function
without using tools.
If the user is unable to perform such adjustments,
the hand screws can be replaced with screws and
nuts with common metric threads. However, be
sure to use the right sizes and lengths.
3.5.4 ADJUSTING CLUTCH PLATES
(Does not apply to VELA Samba models and VELA Tango
300)
The seat and back angles are generally adjusted
by clutch plates, which consist of a stack of thin
plates that fix the angle by means of friction. A
spring presses on to the plates and creates friction.
This spring can be tightened if any issues are
encountered with the seat or back angles, even
when the release lever is not activated.
To tighten the clutch plate, tighten the nut as
shown in the figure below. Note: if the nut is
tightened too much, the angle can no longer be
adjusted by activating the release lever. In this case,
loosen the nut a little.
The nut may be hidden behind a plug which can
be removed by hand or with gentle use of a flat-
headed screwdriver.

701.592 © Vermund Larsen A/S
3.6 EMC DETAILS FOR CHAIRS WITH ELECTRIC LIFT
Chairs with electric seat lift have been tested to ensure compliance with current electromagnetic
compatibility (EMC) requirements. The details are available here.
CISPR 11:2019+A1:2010, Class B up to 30MHz (conducted)
CISPR 11:2019+A1:2010, Class B up to1 GHz (radiated)
CISPR 32:2015, Class B from 1GHz up to 6GHz (radiated)
IEC 61000-3-3:2013 Voltage changes, voltage fluctuations and flicker
Immunity:
IEC 61000-4-2:2008: ESD immunity:
Contact Discharge: ± 8 kV Air Discharge: ± 2, ± 4, ± 8, ± 15 kV
IEC 61000-4-3:2006+A1:2007+A2:20110: RF immunity:
80MHZ to 2.7GHz test level 10V/m, 80% AM at 1kHz.
Frequencies from 80 MHz to 5.8 GHz evaluated according to the table below:
IEC61000-4-4:2012: Electrical fast transient and burst immunity:
Power Port: ±1 kV
Signal Port: ± 2 kV
IEC 61000-4-5:2006: Surge immunity
Power Port (Line to Line): 0.5 kV, 1 kV
Power Port (Line to Earth and Neutral to Earth): 0.5 kV, 1 kV, 2 kV
IEC 61000-4-6:2013: Immunity to Conducted disturbances induces by RF fields:
Range: 150kHz to 80MHz, Outside ISM band: 80% AM at 1kHz, 3 VRMS
ISM band: 80% AM at 1kHz, 6 VRMS
IEC 61000-4-8:2009: Power frequency magnetic field immunity: 30 A/m, 50/60Hz
IEC 61000-4-11:2004: Immunity to voltage dips, variations, and short interruptions:
Voltage dips:
0 % UT (100 % dip in UT) for 0.5 cycle at 0°, 45°, 90°, 135°, 180°, 225°, 270° and 315°
0 % UT 1 cycle, and 70% UT 25 cycles (at 50Hz) / 70% UT 30 cycles (at 60Hz)
Voltage interruptions:
0% UT 250 period for 50Hz 300 period for 60Hz
Service Band (MHz) Distance Test level
TERA 400 380 – 390 MHz 0,3 m 27 V/m
GMRS 460 430 – 470 MHz 0,3 m 28 V/m
LTE bånd 13.17 704 – 787 MHz 0,3 m 9 V/m
GSM 800/900 800 – 960 MHz 0,3 m 28 V/m
GSM 1800: 1700 – 1990 MHz 0,3 m 28 V/m
Bluetooth: 2400 – 2570 MHz 0,3 m 28 V/m
WLAN: 5100 – 5800 MHz 0,3 m 9 V/m
VELA :: Gøteborgvej 8-12 :: 9200 Aalborg SV :: Denmark :: [phone] :: [email protected] www.vela.eu