Lehner Lifttechnik DELTA User manual

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User Manual
DELT 
T r e p p e n l i f t

DELTA User Manual
Edition Feb 2008
DELT  Treppenlift Seite 1 von 34
CONTENTS
Introduction ........................................................................................................................................2
Key to Symbols Used in this Handbook ...........................................................................................3
ATTENTION - SAFETY FIRST.....................................................................................................4
The DELT  stairlift .............................................................................................................................7
General layout: ............................................................................................................................................ 7
Technical details .......................................................................................................................................... 8
Drive.............................................................................................................................................................. 9
Battery charge system ............................................................................................................................... 10
The beeper.................................................................................................................................................. 10
Landing controls........................................................................................................................................ 11
Special option model.................................................................................................................................. 11
OPERATION....................................................................................................................................12
General ....................................................................................................................................................... 12
Main power switch..................................................................................................................................... 12
The following comments are valid only for carriages equipped with a manual platform:..........Fehler!
Textmarke nicht definiert.
Calling of the platform.......................................................................................Fehler! Textmarke nicht definiert.
Unfolding the platform ......................................................................................Fehler! Textmarke nicht definiert.
Driving/Moving onto the platform...........................................................................................................................14
Travelling.................................................................................................................................................................14
Leaving the platform................................................................................................................................................16
The following comments are valid only for carriages equipped with automatic platforms and
barriers:...................................................................................................................................................... 17
Wall controls............................................................................................................................................................17
Driving/Moving onto the platform...........................................................................................................................18
Driving/Moving onto the platform...........................................................................................................................19
Travelling.................................................................................................................................................................20
Leaving the platform................................................................................................................................................22
TROUBLESHOOTING...................................................................................................................23
RESCUE OF PASSENGERS..........................................................................................................26
Emergency unclamping of barriers:........................................................................................................ 29
ERECTION.......................................................................................................................................30
Electrical installation................................................................................................................................. 30
Installation.................................................................................................................................................. 30
Dismantling ................................................................................................................................................ 30
CHARGES OF THE OPERATOR.................................................................................................31
MAINTENANCE .............................................................................................................................32
Check-up and care..................................................................................................................................... 32
Installation and maintenance notes.......................................................................................................... 33

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Edition Feb 2008
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Introduction
Congratulations on your decision to buy a Lehner-Stairlift, and welcome to the growing
circle of satisfied customers.
The DELTA stairlift marks the beginning of a new generation of platform stairlifts equipped
with a well-established power train.
Quiet and easy operation, low operating costs, and appealing and space saving design are
just a few of the outstanding features of DELTA lifts.
To ensure flawless lift function, please utilise this DELTA user handbook. It offers many
helpful operating instructions as well as important safety hints.
Please take advantage of the many years of experience we have summarized in this user
handbook. Common sense handling and regular servicing serve as a basis for the safe
and reliable operation of your platform lift for many years. LEHNER LIFTTECHNIK and its
authorized partners offer a special maintenance program adapted to the frequency of use
of the lift.
Please be informed that LEHNER LIFTTECHNIK stairlifts assumes no liability for
breakdowns caused by either the non-observance of instructions provided in this handbook
or incorrect handling. In these cases, LEHNER LIFTTECHNIK stairlifts must charge the
customer for all costs incurred in fixing the problem.
Now enjoy your DELTA stairlift!

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Key to Symbols Used in this Handbook
The following signs stress important passages:
Pay attention to all paragraphs marked with this sign. These paragraphs
contain important hints that will insure flawless operation of the lift.
WARNING! Important safety advice! Observing these instructions greatly
reduces the possibility of hazardous situations.
Pay attention! Do not execute the actions marked with this sign!
All in this handbook shown photos or pictures are symbolic and can differ
from reality
Photo

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ATTENTION - SAFETY FIRST
Please pay careful attention to the next points/instructions!
Operator of the DELT
 stairlift
For every stairlift minimum one responsible person has to be appointed; during the
operation of the unit this person has to be easily reachable. The unit has to be
preserved failsafe. In case that the unit is acknowledged as not failsafe, it has to be
closed down immediately; Accidents have to be notified to the manufacturer
immediately.
The responsible person has to get sure once a week that no obviously dangerous
defects exist and that the within capture „CHARGES OF THE OPERATOR“
explained tasks are perceived.
User group:
Only specially instructed persons are to use the DELTA stairlift and must take
responsibility for all others who are present.
Users who are not able to fulfil these requests, as well as children, need an
attendant person who takes responsibility over the user.
Setup area:
OMEGA lifts can be mounted on staircases and ramps. The lift, however, is not
designed for use in unusual areas (like areas in danger of explosion, areas
surrounded by aggressive chemical substances, …). Outdoor use is possible, but
the parts must remain clear of ice and snow in winter.
Duty cycle:
The DELT  stairlift was constructed for being 4 minutes in motion per 10 minutes.
In case that the stairlift is permanently in operation, the motor could get too warm
and becomes defective.
Keys:
Keys should be kept in a safe place, away from those who are not to use the lift.
Remove the key from the control when not in use.
Provision application
➔OMEGA stairlifts must only be used for the transport of persons in wheelchairs
or sitting on the fold down seat.
➔Never use the stairlift in the standing position.
➔OMEGA stairlifts must not be used for freight transportation.
➔Lock both the lift and the platform after use. Do not let children play on the lift.
➔Do not exceed the maximum platform load or maximum wheelchair size.
➔Pay attention to the instructions provided on the lift.
➔Pay attention to the following points for the correct use of the stairlift.

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Load capacity:
The maximum load is indicated on the sideboard of the carriage.
Do not exceed this limit!
Attention:
The stairlift can only be used by one person at one time. It is not allowed to
transport an attendant person.
Keep hands and fingers away from the back of the carriage! Passengers must re
main in the wheelchair or seat while the lift is operating.
Persons walking up or down the stairs while the lift is being operated must avoid
contact with the platform. Platform users should take into consideration that the
platform needs more space in a bend than on a straight railway. Therefore, before
moving, look to see if anyone is using the stairs or if there are any obstacles.
Emergency stop
An emergency stop is fitted on the carriage. In case of emergency press the red
STOP-switch and the lift will stop immediately. To unclamp the STOP-switch, it is
necessary to press it once more or to turn it clockwise.
Emergency call
In case that it is necessary for the individual user (for example: extrication stuff is
only reachable over the emergency call) or the authority enjoins it, the stairlift can be
executed with an emergency call button to summon for help. By pressing the
emergency button a loud emergency signal rings out.
Attention!
Do not use lift in the case of a fire. A power out can lead to dysfunction of the lift!
DELTA stairlifts are equipped with the following safety features:
-drive with self-locking gear and break
-overspeed governor
-side access ramps, locked
-mechanical bolted barriers
-optional: safety pads around the platform used for carriages without ramps
safety pads on the underside of the platform
Do not disable any safety feature of the lift by modifying mechanical or electrical
parts of the lift. Please contact LEHNER or one of its authorised partners for service!
We recommend preventive checks, i.e. a regular servicing of the OMEGA stairlift will
insure safe operation for a long time. Any abnormal operation of the lift should be
reported to the servicing engineer. In the case of irregularities such as vibrations or

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abnormal noise emissions, do not use the lift. Call LEHNER for help! Follow all
instructions given by LEHNER experts, fitting teams and service staff.
Lift up the upper armrest before moving onto the platform or leaving the platform
when using a carriage with seat performance!

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The DELT  stairlift
General layout:
Figure 1 Layout
1. Wall control 6. Intermediate stop position
2. Recharger 7. Upper railway tube
3. Carriage with drive 8. Lower railway tube
4. Upper stop position 9. Overspeed governor
5. Lower stop position

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Technical details
X standard performance
O optional performance
Feature
Detail
Railway
Gradients 15...45°
X
Length up to 15 m
X
Length over 15 m
O
Speed
appr. 0,1 m/s
X
Power
0,5 kW
X
Voltage
24V DC
X
1 x 230 V for recharger
X
Position of drive
Inside carriage
X
Site
indoors
X
Tolerable temperatures
0°C to +40°C
X
Environment
Only at dry areas
X
Carriage model
Platform for wheelchairs
X
Platform / folding seat
O
Platform size
standard 700 x 750 mm
X
standard 750 x 850 mm
standard 800 x 900 mm
standard 800 x 1000 mm
Optional size
X
X
X
O
Load capacity
standard 150 kg
X
optional 225 kg
O
Surface protection of lift
Powder coated
X
Drive rails
Stainless steel
X
Noise
< 70 dB(A)
X
Table 1

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Carriage with platform for wheelchairs
1. Key switch 6. Directional control
2. Emergency STOP 7. Folding seat (option)
3. Ramps 8. Main control button at the carriage side
4. Barriers, liftable 9. Green lamp
5. Carriage cover
Drive
(behind the carriage sidewall)
1. Gear box
2. Motor
3. Hand wheel
4. Hand lever for break release
5. Lower guide rail (=toothed rack)
1
2
3
3
4
4
5
6
7
8
8
9

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Battery charge system
The motor of the DELT  stairlift is powered by batteries, which are reloaded by a
recharger. The recharging occurs in the upper and lower stop positions by recharge
contacts. As a consequence, if the DELTA is not in use it is important that it is parked in
the stop positions.
To avoid an unintentional parking outside of the stop position an acoustic warn signal is in
installed.
The beeper
Is the platform after 5 minutes after use not in the stop position then the beeper
gives signals every second. If so, please bring the platform in the stop position.
If the lift is parked in the stop position and the beeper still gives signals then the
recharge does not work. In this case please turn off main power switch of the lift and
check if there are power outs in the building or if a fuse is not working properly. If
any such errors are corrected and the beeper is still giving signals please contact
the service company. It is possible that either the batteries or the recharger are
defect.
If the battery voltage is too weak for normal drive operation then the beeper gives
signals every 2.5 seconds. In this case please bring the carriage in the stop position
to recharge the batteries. If the signal does not stop after recharging then the
batteries might be defect and have to be changed by the service company. In the
case of weak batteries the electrical control system is programmed in a way that the
carriage always reached the lower stop position with the remaining battery voltage.

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Landing controls
The DELTA stairlift is equipped with landing controls that communicate via radio with the
carriage. With these controls the lift can be called and sent when the platform is closed. In
the case of automatic platform the platform also can be opened and closed with the
controls.
The controls are supplied by one 9 Volt battery. Optional a connection cable to a constant
power supply is possible.
The life-time of the battery is about 1 year. In general the battery is changed by a service
through the service company.
The functionality of the battery can be checked as follows:
In each wall control a green lamp is installed. This lamp start to flash if the key switch of
the control is switched on and a control button is pressed. If the lamp does not flash then a
change of the batteries will be necessary.
Special option model
Safety bottom
The safety bottom can be installed optional at the underside of the platform. It reacts to
pressure and stops the lift immediately if it touches an obstacle and only the upwards
direction command is possible.

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Main switch
OPERATION
General
DELT  lifts are safe and easy to use. The technical control of the lift is entirely adapted to
the abilities of physically handicapped persons.
Please refer to the general layouts on the previous pages for a better understanding of the
lift.
Operation distinguishes between lifts with manual or automatic platform. Manual platforms
have to be opened using physical force, the barriers have to be lifted as well. Automatic
platforms perform these functions automatically.
Main power switch
The main power switch is located at the left side
wall of the carriage and connects the plant to the
batteries. For use of the lift, first turn on the main
power switch. By switching off the main power
switch, the lift cannot be used anymore (also not
through the wall controls). If the main power switch
and the key switch are switched on, the green
lamp on top of the carriage is shining.
After the main power switch is turn off the
recharger is still under voltage. Before are done to the stairlift the power supply to
the customer provided distribution box has to be interrupted.
Before operating the lift, ensure that the platform area is clear.

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Using the Remote Control
The remote control must be activated with the key switch before operation.
The remote controls are used for calling and sending the platform and also for folding and
unfolding.
A green light is flashing by correct use. The remote Control are working with 9V batteries.
Drive UP
Only possible if platform is folded. The
platform can be sent up.
Drive DOWN
Only possible if platform is folded. The
platform can be sent down.
Unfold the platform
This command is only working if the platform
is in station
Folding the platform
This command is also working if the platform
is not in station.
key
green LED

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1
2
3
3
4
5
6
Open
barrier
and enter
platform
Driving/Moving onto the platform
When the unlocked barrier is opened, the
ramp will automatically fold down. The
barrier down to the staircase is always
locked (excepting at the lower stop
position = special customer request).
Always face the direction of travel,
and use the wheelchair brake for
safety.
Close the barrier when on the platform.
When the barrier is closed the ramps
will automatically lift up. This is an
additional safety feature that secures
the wheelchair.
Lift up the upper armrest before
moving onto the platform when
using a carriage with seat
performance!
Travelling
The carriage control on the sidewall contents of a directional
control on a spiral cable, a key switch and an emergency stop.
The platform contains a directional control, connected to
a spiral cable, a key switch, an emergency stop and a
green control lamp at the side of the platform. Optional
there can be a key switch at the side of the platform.
1. Key switch
2. Emergency Stop
3. Barriers
4. Carriage cover
5. Drive controls (Up/down)
6. Green lamp
When the passenger has moved onto the platform in accordance with the “Driving/Moving
onto the platform” instructions, the platform control must be switched on.
Close
barrier
Use wheelchair
brakes

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➢Put in the key and turn it into “ON”
position. The green lamp will start to
glow.
➢Now the carriage can be set in
motion by pressing the “up” or “down”
directional control. The carriage stops
at all stop positions (upper-, lower-,
intermediate stop) automatically.
When the directional control remains
pressed during an intermediate stop,
the carriage will stop for about two
seconds; then the carriage will
continue travelling towards the
planned stop position.
Always watch the stair! If there is danger that the platform drives against an obstacle
stop the lift by releasing the directional control button.
The lift automatically stops when driving into a stop position. If there is an intermediate
stop the lift continues to drive after a pause of 2 seconds if the directional control button
remains pressed.
The carriage stops also when the ramps or any other safety pad travels against obstacles!
As a safety measure, the plant is equipped with an emergency stop (red button on
the control). In the unlikely event that the stairlift does not stop when the
directional control button is released, press the emergency stop button, a self-
locking button, and the lift will stop immediately. To unlock the emergency stop
button, press it once more or turn it clockwise.
Fahrbahn
beobachten und
Fahrbefehl geben
Schlüsselschalter
einschalten

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Leave the
platform
Leaving the platform
The stairlift has been designed to stop in
the correct position at each station.
Release the directional control when the
carriage has reached the desired stop
position.
➢Switch off the platform control by
turning the key into “OFF” position.
Take out the key.
➢Lift the unlocked barrier and the
ramps will automatically descend to
the turn down position. Now you can
leave the platform.
Lift up the armrests before leaving the
platform when using a carriage with seat
performance!
To avoid unauthorised use of the stairlift,
always switch it off with the key when not
in use.
➢After leaving the stairlift, lift down the barriers and fold up the platform. By folding up
the platform the wall controls (landing controls) will be re-activated. The carriage can be
sent to the desired parking position.
If there is an acoustic signal 5 seconds
after releasing the directional control
button then the lift is probably not in the
exact recharging position. Please
reactivate the drive button to bring the lift
in the final position.
Plattform
geschlossen
Turn off key switch
and lift up the
barrier

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The following comments are valid only for carriages equipped with
automatic platforms and barriers:
Wall controls
All Delta installations are equipped with calling stations, with which you can call and send
the lift. Call stations are located in the area of the upper and lower landing position.
Each landing call station needs to be activated with a key switch before use.
The call stations are needed to call and send the lift with closed platform and to open and
close the platform in the landing stations.
A green LED light will start flashing when a command button is pressed.
Drive up button
The platform will drive up when in closed
(unfolded) position
Drive down button
The platform will drive down when in closed
(unfolded) position
Platform open button
The platform will open (unfold). This button
works only when the platform is in the
landing station.
Platform close button
The platform will close (fold). The platform
should be closed when in the landing station.
Key switch
LED light

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Is the platform not on the level on which you want to move onto the platform, you can call
the platform by using the wall controls:
Switch on the wall control by putting in and turning the key. Press the “Up” or “Down”-
Button and the platform moves into the direction as long as you hold the button. The green
light starts to flash! The carriage travels as long as you keep pressed the directional button
on the wall control.
Wall controls only control the lift when the platform is folded up.
The carriage stops automatically at the stop position. To use the lift fold down the platform
by using the “Open”-Button. Press the button as long as it takes that the platform is in
horizontal position and the barrier has opened completely. Simultaneously the ramps turn
down to the correct position enabling safe driving/moving onto the platform. When the
platform is folded down, all controls other than the platform control lose their function. This
allows safe movement onto the platform.
Driving/Moving onto the platform
You can move onto the platform after you have opened the platform and the barrier in
accordance with the former chapter.
Always face the direction of travel and use the wheelchair brake for safety.
➢Press the button for „open“ on the wall control as long as the platform is horizontally
positioned and the barrier is opened. When opening, the other controls are
automatically switched off so that no other person can move the lift at the same time
and a secure driving onto the lift is possible. In the case of a seat the arm rests also
have to be unfolded.
Always keep eye contact to
the platform and make sure
that nobody can be when
opening the platform. If there
is any danger, immediately
stop the movement by
releasing the pressed button.
➢Switch off the platform control by turning the key into “OFF” position. Take out the key.
Open platform
and barrier

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Open
barrier
and enter
platform
Driving/Moving onto the platform
When the unlocked barrier is opened, the
ramp will automatically fold down. The
barrier down to the staircase is always
locked (excepting at the lower stop
position = special customer request).
Always face the direction of travel,
and use the wheelchair brake for
safety.
Close the barrier when on the platform.
When the barrier is closed the ramps
will automatically lift up. This is an
additional safety feature that secures
the wheelchair.
Lift up the upper armrest before
moving onto the platform when
using a carriage with seat
performance!
Close
barrier
Use wheelchair
brakes