6
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.
