Lehner Liftechnik ALPHA User Handbook Manual Download Page 11

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User manual Alpha stairlift

Version Dez. 2014

page 11 of 15

Fault detection and trouble shooting

The lift is equipped with a number of electrical and mechanical safety features. If the lift is
not working check the following points:

Next to the main power switch are 3 LEDs. The left and the right LED indicate the
directional obstruction sensors on the drive unit and trolleys. The middle LED indicates the
safety circuit. If all 3 Leds are turned off the safety circuit is open.

The safey circuit consists of the following switches:



Overspeed governor switch S10



Seat rotation switch SR2



Ultimate limit switch S22



Handwheel switch SA5

The directional obstructions sensoers consist of the following switches (left/right):



Upper trolley S13/S12



Lower trolley S27/S28



Lateral drive unit SK-1/SK-2



Footrest (directional) EK-R/EK-L



Footrest and underside of drive unit (sensitiv only in down direction) S17

Safety circuit

Left obstruction
sensors

Right obstruction
sensors

Summary of Contents for ALPHA

Page 1: ...USER HANDBOOK Stairlift ALPHA ...

Page 2: ...ction 3 Installation schematic 4 Technical parameters 5 Seat function overview 6 Controls 7 Starting up the chairlift 8 Sending and calling the chairlift from the hall calls 9 Seat rotation 10 Fault detection and trouble shooting 11 Emergency drive wheel 13 Charging the battery 13 Maintenance 14 Maintenance Record 15 ...

Page 3: ...f your stairlift Upon completion of installation the dealer must provide you with the information below and ensure it is recorded in this manual In addition either the dealer or you must keep any service and or maintenance records in the Maintenance Record section of this manual The chairlift may only be used by a person who is familiar with its use People not meeting this requirement for example ...

Page 4: ...position key switch located at the underside of the armrest Overload current protection setting that corresponds to the load of approximately 160 kg Constant push controls the lift always stops if the control joystick or the button on the hall call is released Installation schematic A Hall call F Pillar base plate B Seat belt G Upper stop C Upper tube H Horizontal parking curve D Lower tube with r...

Page 5: ...ystem Rack and pinion Operator controls Constant pressure type joystick switch and remote control call send units Seat belt Retractable Motor 0 37kW 24 VDC Charging 1x230V 50Hz AC or 1x110V 60Hz AC Fold up width 37 cm Fold out width 64 5 cm Rail Steel Emergency operation Full up and down travel on power interruption full battery backup Warranty 24 months on parts ask dealer for details Noise 0 to ...

Page 6: ...ction overview 1 Front cover 9 Joystick in armrest 2 Footrest 10 Swivel lever 3 Folding seat 11 Side cover 4 Backrest 12 Footrest cover 5 Left armrest 13 Trolley covers 6 Right armrest 14 Seatbelt 7 Main power switch 15 Emergency handwheel 8 Key switch in armrest 7 8 15 9 10 10 11 14 13 12 2 4 3 5 6 1 ...

Page 7: ...ing the joystick direction located in the armrest or using one of the hall call remotes located at each stop position Armrest Hall call The keyswitch on the handset must be on in order to use the drive joystick Also the keyswitch in the hall call must be on in order to call or send the chairlift Drive up Drive down Drive Joystic k Keyswitch ...

Page 8: ...t on the chairlift 4 Use the seatbelt 5 Use the joystick on the armrest by pushing it in the driving direction there is a 3 second security time delay between the activation of the joystick and the start of the lift 6 The lift will drive as long as the joystick switch is being pressed and stops after releasing it or at the landing stop station 7 Always watch in the driving direction for any obstac...

Page 9: ...g pressed and stops after releasing the button or when arriving in the landing station 5 Press the directional button until the seat automatically stops at the landing stop 6 Turn the key on the wall controller and take it with you Hall calls are usually supplied with two 1 5V AAA batteries Battery life time is approximately one year so the battery can be replaced during regular service visits 1 m...

Page 10: ...n at 0 20 45 70 and 90 Release the swivel lever when the chair is in your desired position and make sure the swivel mechanism safely engages again at this position by pushing the lever back up into its original position Then the seat should be locked at this position 4 Carefully get out of the seat 5 Turn the seat back to the drive position 6 If required you now can raise up again the footrest fol...

Page 11: ...t and trolleys The middle LED indicates the safety circuit If all 3 Leds are turned off the safety circuit is open The safey circuit consists of the following switches Overspeed governor switch S10 Seat rotation switch SR2 Ultimate limit switch S22 Handwheel switch SA5 The directional obstructions sensoers consist of the following switches left right Upper trolley S13 S12 Lower trolley S27 S28 Lat...

Page 12: ...if the armrest is folded down correctly and if the key switch in the armrest is turned on The seat does only react from the armrest control and not from the control stations Check if the LED on the external control shows a blinking green light If the lift is blinking orange then the receiver does not receive the signal If it is blinking green it is receiving correctly The seat drives only in 1 dir...

Page 13: ...dwheel The handwheel has to be entered on the front of the drive unit into a hole next to the main power switch Before using the handwheel turn off the main power switch The handwheel has to be pushed into the hole with a certain force and can then be turned in the desired direction The movement of the unit will be slow and the lift should be moved to the nearest acceptable position Main power swi...

Page 14: ...tenance Regular maintenance of the entire stairlift is particularly important The minimum inspection intervals also with minimal frequency of usage are 1st service inspection after about 6 months after commissioning Additional inspections depending on usage but at least every 12 months Check regularly at least once a week following points on your seat The seat should not start if the armrest with ...

Page 15: ...User manual Alpha stairlift Version Dez 2014 Email office lehnerlifttechnik at page 15 of 15 Maintenance Record ...

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