Flow2 stairlift Tab 07: Disassembly and assembly

Transcription

Flow2 stairlift
Tab 07: Disassembly and assembly
Flow2 stairlift
© 2006 ThyssenKrupp Accessibility B.V.
All rights reserved
The information in this manual may not under any circumstances be given to someone else, reproduced or published
by any means without the prior written permission of Product Management.
Flow2 stairlift
2007.03.07
Table of Contents
1 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
1.2
1.3
1.4
General procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Removing/fitting covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Removing/installing the batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Running the drive unit on/off the rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 The chair base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1
2.2
2.3
2.4
2.5
2.6
2.7
Chair base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Armrest control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Safety belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Armrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Seat covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Rubber footrest covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chair base gas spring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3 The drive system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1
3.2
3.3
3.4
3.5
The suspension roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
The drive motor and the brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
The charging assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
The overspeed governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
The travelling gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4 The horizontal system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1
The horizontal motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5 The swivel system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.1
The swivel mechanism and the optocouplers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6 The printed circuit boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.1
6.2
6.3
1
The main board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
The drive motor encoder system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Other printed circuit boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
www.ThyssenKruppAccessibility.nl
Flow2 stairlift
Table of Contents
2
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1
Flow2 stairlift
2007.03.07
Preparation
This section reviews:
-
General procedures
-
Removing/fitting covers
-
Removing/installing the batteries
-
Running the drive unit on/off the rail.
1.1 General procedures
-
Prevent damage to the electronic components as a result of
static discharge by connecting yourself to the frame of the
drive unit. Use an anti-static wrist strap (1) for this and
connect this wrist strap to the frame (2).
-
Ensure that you work safely at all times. Avoid unsafe
situations through ill-considered actions.
1
-
Make sure that the power is disconnected from all the
stairlift’s components.
- Switch off the system with the On/Off switch.
- Remove the main fuse.
Fig. 1-1
2
Anti-static wrist strap
-
Remove the joystick(s) from the armrest control and the call and park units. You will then be
certain that no-one can operate the stairlift.
-
When you disassemble the drive unit and/or the chair, place a piece of cardboard, or a wooden
or plastic plate under the removed part to prevent staining and/or damaging the carpets or
other surface. This will also prevent the parts being damaged.
-
Work in clean and dust-free surroundings.
-
Put all the disassembled parts neatly to one side with their associated mounting components
so that you will be easily able to re-assemble them in the reverse order.
CAUTION
-
Do not allow any parts to fall into the drive unit. This can cause cause damage and
interfere with the operation of the overspeed governor.
-
If, despite precautions, a part does fall into the drive unit, ensure that you remove
the part before you use the stairlift again.
CAUTION
After replacing a component always carry out a reset trip and a test trip!
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2007.03.07
Preparation
1.2 Removing/fitting covers
When removing the covers, the position of the drive unit on the rail
is not important. The drive unit has the following covers:
-
Two sliding enclosures (1)
-
Two carriage covers (2)
-
The cover over the suspension roller (3)
-
The top over (4)
-
A swivel cover (5)
-
Two frame covers (6)
-
The service cover (7).
4
5
3
6
2
7
1
Disassembly
Fig. 1-2
Covers
1. Switch the stairlift off with the on/off switch.
2. Remove the service cover over the drive unit by grasping it at both sides and carefully lifting it
off the drive unit.
3. Remove the top cover by pulling it carefully off the drive unit.
4. Remove the two batteries.
5. Remove the fuse holder (1) from the frame cover by clicking it free.
Fig. 1-3
Removing the fuse
holder
Fig. 1-4
Removing the frame
cover
6. Remove the two frame covers by removing the screws (3 screws per cover).
7. Press the catch on the rear side of the travelling gear cover with your finger and remove the
cover.
8. Remove, if necessary, the sliding enclosure from the travelling gear cover by bending back the
spring (9) behind the pins (8). Remove the sliding enclosure.
4
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Flow2 stairlift
Preparation
8
Fig. 1-5
9
Sliding enclosure
Fig. 1-6
Suspension roller cover
9. Remove the suspension roller cover mounting bolt and remove the cover.
Assembly
Assembly of the covers is done in the reverse order. Pay attention to the following instructions:
-
Pay attention to the routing of the wiring, route this correctly as necessary.
Fig. 1-7
Wiring route, right
Fig. 1-8
Wiring route, left
-
Ensure that no cables are caught under the covers.
-
Ensure that the travelling gear cover rubber strips are properly fitted under the travelling gear
rollers.
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2007.03.07
Preparation
-
Ensure that the frame covers are properly aligned with one another and that the pins of the one
cover properly engage in the cutouts on the other cover.
-
Observe the polarity of the battery connections.
1.3 Removing/installing the batteries
WARNING
Be careful when removing/installing the batteries. Ensure that the positive terminals of
the batteries do not touch the metal frame. This can create a short circuit and damage
WARNING
Take care not to trap the cable between the battery and the frame.
Disassembly
1. Remove the service cover. See Section 1.2.
2. Remove the main fuse.
3. Take the batteries out of the housing one by one. Remove
the connections by pressing lightly on the plug and then
pulling it free. By pressing the plug you release the contact.
Assembly
Assembly of the batteries is done in the reverse order.
Fig. 1-9
Removing the batteries
1.4 Running the drive unit on/off the rail
The drive unit needs to be removed from the rail before carrying out repairs such as the replacement
of the overspeed governor or the travelling gear.
NOTE
Remove the drive unit from the rail only when necessary.
CAUTION
Take ESD precautions! Use the anti-static wrist strap.
6
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Flow2 stairlift
Preparation
Running the chair unit off the rail
1. Move the stairlift to a horizontal landing. This is often the top charging contact.
2. Remove the service cover from the drive unit (see Section 1.2).
3. Remove the emergency end stop from the end of the rail.
4. Remove the chair from the drive unit.
5. Fit the carrying bracket on the drive unit.
6. Connect, if required, the Arrow armrest control to the service board.
Fig. 1-10 Removing the
emergency end stop
Fig. 1-11 Arrow remote control
7. Switch the stairlift software to mode 3 with the mode switch on the service board.
8. Drive the drive unit carefully off the rail using the pushbuttons on the service board or by
operating the Arrow remote control.
CAUTION
The drive unit weighs more than 30 kg. Ensure that you have a good hold on the drive
unit and lift with your back straight. Ask for assistance as necessary.
9. Switch the stairlift off with the on/off switch.
10. Move the drive unit to a point where you have sufficient space to carry out the repairs.
Riding the drive unit onto the rail
Riding the drive unit onto the rail is done in the reverse order. For the points that require attention,
see Tab 04 (install, adjust and release).
CAUTION
Because of its weight, riding the drive unit onto the rail is a difficult task. Do this with
caution.
7
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Preparation
8
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2
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2007.03.07
The chair base
This section reviews the replacement procedures for:
-
Chair base
-
Armrest control
-
Safety belt
-
Armrest
-
Seat covering
-
Rubber footrest covering
-
Chair base gas spring.
2.1
Chair base
Disassembly
1. Fold up the armrests, seat and footrest.
2. Remove the cover over the chair base baseplate by pulling it free with both hands at the rear
side.
3. Disassemble the chair base by unscrewing the 4 mounting bolts.
Fig. 2-1
Removing the covers
Fig. 2-2
Removing the chair base
4. Lift the chair base off the drive unit.
5. Carefully put the chair base on the floor.
CAUTION
Do not put the chair base straight onto the customer's carpet, but put something
underneath. The underside of the chair base may be dirty.
9
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2007.03.07
The chair base
Assembly
Assembly of the chair base is done in the reverse order. Pay
attention to the position of the locating pin.
Fig. 2-3
Locating pin
2.2 Armrest control
NOTE
The ‘empty’ unit in the other armrest can be installed/removed in the same way as the
armrest control.
Disassembly
1. Remove the joystick from the armrest control.
2. Use the pointed end of the joystick to lift the rear side of the battery cover.
3. Remove the battery cover and take the batteries out of the holder.
4. Press the armrest control to the rear and lift the two locking catches one by one using the
joystick.
5. Remove the joystick from the armrest.
Fig. 2-4
10
Opening the battery
cover
Fig. 2-5
Removing the armrest
control
2007.03.07
Flow2 stairlift
The chair base
Assembly
1. Place the armrest control in the armrest.
2. Push the unit towards the front of the chair until the locking catches secure the unit.
3. Fit the batteries and the battery cover.
4. Insert the joystick into the armrest control.
NOTE
If you install a new armrest control, do not forget to register it. See Tab 04: Install, adjust
and release.
2.3 Safety belt
This procedure describes only the replacement of the extending part of the safety belt. To replace the
fixed part, you can follow part of the same procedure. The mechanism for the fixed part is so simple
that no extra explanation is necessary.
NOTE
The construction of the two armrests is identical. You can therefore switch the two parts
(the fixed and the extending part) of the safety belt.
Disassembly
1. Remove the cover at the rear of the armrest. Push the cover free by inserting a screwdriver in
the hole underneath the armrest.
2. Fully extend the safety belt.
1
2
3
Fig. 2-6
Removing the cover
Fig. 2-7
Locking and removing
the retraction
mechanism
11
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2007.03.07
The chair base
3. Lock the retraction mechanism (2) with a clip (1). In the picture a piece of copper wire is used.
This will also work.
4. Loosen the bolt (3) that holds the mechanism one turn and remove the retraction mechanism
from the armrest.
CAUTION
Do not completely unscrew the bolt because the head of the bolt can damage the
armrest hinge.
5. Release the lower part of the mechanism (4) so that the belt
is freed.
6. Pull the belt through the opening in the armrest.
Assembly
Assembly is done in the reverse order.
4
Fig. 2-8
Removing the safety belt
2.4 Armrest
TIP
You can replace a straight armrest with a curved armrest and vice versa.
Disassembly
1. Remove the armrest control (or the ‘empty’ unit) from the
armrest. See Section 2.2.
2. Remove the safety belt from the armrest. See Section 2.3.
3. Remove the armrest by loosening the mounting bolt.
Assembly
12
Fig. 2-9
Removing the armrest
2007.03.07
Flow2 stairlift
The chair base
2.5 Seat covering
Disassembly
1. Pull the covering carefully out of the grooves in the underside of the seat or at the rear side of
the backrest.
2. Push your hand between the covering and the frame to release the velcro.
3. Slide the covering off the seat or the backrest.
Fig. 2-10 Removing the covering
Fig. 2-11 Removing the covering
Assembly
1. Place a sheet of paper over the velcro on the seat frame.
2. Pull the covering over the seat or over the backrest and correctly position the covering.
3. If the covering is in the right position, pull away the sheet of paper between the frame and the
covering so that the velcro can hold the covering in place.
4. Fold the edges of the covering into the grooves in the underside of the seat or at the rear side
of the backrest.
2.6 Rubber footrest covering
Disassembly
1. Grasp the rubber covering at the footrest hinge point and lift
it upwards from the underside of the footrest.
2. Slide the rubber covering off the footrest.
Assembly
Fig. 2-12 Removing the rubber
covering
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2007.03.07
The chair base
2.7 Chair base gas spring
Disassembly
1. Remove the seat covering. See Section 2.5.
2. Remove the seat cover plate. This is attached to the seat with spreader plugs and you can
simply pull it free.
3. Remove the pin that attaches the gas spring to the seat. You do this by unscrewing the two
mounting bolts and the pushing the pin out of the seat.
1
Fig. 2-13 Removing the gas spring
2
3
Fig. 2-14 Removing the gas spring
4. Disconnect the other end of the gas spring by removing the locking spring (1) from the ball
head (2) and pushing the gas spring off the ball head (you can also remove the ball head by
loosening the attachment nut (3)).
5. Remove the gas spring.
Assembly
Assembly is done in the reverse order. Pay attention to the following instructions:
14
-
Fit the gas spring by first attaching it to the ball head and then to the seat. You can apply the
tension to the gas spring simply by using the pin.
-
Check that the gas spring works correctly by folding and unfolding the chair a few times.
-
Use new spreader plugs for fitting the cover plate.
3
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2007.03.07
The drive system
-
The suspension roller
-
The drive motor and the brake
-
The charging assembly
-
The overspeed governor
-
The travelling gear.
3.1 The suspension roller
1. Drive the drive unit off the rail. See Section 1.4.
2. Remove the cover over the suspension roller. See Chapter 1.
3. Remove the complete creep cassette from the frame and disconnect the connections to the on/
off switch and the optocoupler.
Fig. 3-1
Removing the creep
cassette
Fig. 3-2
Removing the
suspension roller
4. Remove the two mounting bolts from the suspension roller and pull the suspension roller
downwards out of the frame. Make space by moving the travelling gear apart.
5. Replace the bearing and the roller as necessary. See the exploded view.
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2007.03.07
The drive system
Fig. 3-3
Exploded view suspension roller
Assembly
Assembly is done in the reverse order. Tighten the bearing and roller bolts to a torque of 70 Nm. Use
a torque wrench for this.
3.2 The drive motor and the brake
CAUTION
CAUTION
In most cases you will have to ride the stairlift off the rail to be able to reach the parts
properly. If you do leave the stairlift on the rail, position the drive unit on a horizontal rail
section or secure it so that it cannot move when you remove the brake.
1. Ride the drive unit off the rail and position the drive unit on a stable base. See Section 1.4.
2. Remove the covers required and the batteries from the stairlift. See Chapter 1.
3. Remove the suspension roller frame. See Section 3.1.
4. Remove the creep cassette.
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Flow2 stairlift
The drive system
5. Disconnect the brake connection from the main board. Remove the tie wrap first.
6. Disconnect the drive motor's supply cables from the motor module.
7. Remove the drive motor by removing the three allen bolts.
8. Pull the drive motor, with the encoder board, out of the frame.
Fig. 3-4
Disconnecting the brake
connections
Fig. 3-5
Removing the drive
motor
Fig. 3-6
Disconnecting the drive
motor
Assembly
NOTE
The drive motor is generally supplied with an encoder board. If this is not the case,
remove the encoder board very carefully from the old drive motor. See Section 6.2.
-
Ensure that the brake wiring is positioned in the cutout in the
motor housing.
-
Observe the polarity of the motor connection wires (red is +,
black is -).
Fig. 3-7
Cutout for the brake
wiring
17
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2007.03.07
The drive system
3.3 The charging assembly
CAUTION
The charging assembly has a cam that prevents the chair being pushed too far
backwards. Therefore, do not allow the chair to move too far backwards during and after
removal of the charging assembly as the drive gearwheel can then come out of the rack.
The stairlift can move downwards without obstruction.
Disassembly
3
1. Position the stairlift so that the charging assembly is in
between two stair treads.
2. Loosen the central mounting bolt (1) on the underside.
3. Allow the charging assembly to drop a little out of the drive
unit until you can reach the connector (2).
2
1
4. Disconnect the connector and remove the charging
assembly.
Fig. 3-8
Charging assembly
Assembly
-
First connect the charging assembly electrical conncections and ensure that the wiring is tidily
clear off the moving parts.
-
Ensure that the forks of the guide are correctly positioned over the rack gearwheel.
-
Move the drive unit to a charging contact and check that the contacts of the charging assembly
make proper contact with the charging contact.
3.4 The overspeed governor
Disassembly
2. Remove the charging assembly. See Section 3.3.
3. Disconnect the connector from the optocoupler and the overspeed governor from the service
board.
4. Remove the bottom plate from the overspeed governor by removing the four allen bolts (1).
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Flow2 stairlift
The drive system
1
Fig. 3-9
Disconnecting the
optocoupler plug
Fig. 3-10 Overspeed governor
mounting
CAUTION
The bottom plate contains the drive shaft lower bearing and a pin that prevents the drive
gearhweel being forced out of the rack. Do not apply any load to the stairlift to prevent
the drive being damaged and to stop the stairlift falling off the rail.
Assembly
Assembly is done in the reverse order. Pay attention to the
following instructions:
-
Clean all the parts thoroughly with a clean, dry cloth.
-
Check the various parts for wear and damage.
-
When fitting the bottom plate, position the bearing around
the drive shaft first and then push the plate towards the rack.
Push the bottom plate into position and ensure that the pins
(2) engage properly in the cutouts.
1
Fig. 3-11 Overspeed governor
mounting
3.5 The travelling gear
Disassembly
1. Drive the drive unit off the rail. See Section 1.4.
2. Remove the covers required and the batteries from the
stairlift. See Chapter 1.
1
2
3. Remove the locking bolt on the underside of the travelling
gear section (2).
4. Push the pin (1) out of the travelling gear and remove the
travelling gear section from the frame.
5. Repeat step 3 and 4 for the other travelling gear section.
Fig. 3-12 Removing the travelling
gear
6. Replace the bearings and rollers as necessary. See the exploded view.
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2007.03.07
The drive system
Fig. 3-13 Travelling gear
l d d i
NOTE
You cannot replace the top rollers because these are fitted with pre-tensioned springs.
Special tools are required for this.
Assembly
Assembly is done in the reverse order. Tighten the bearing and roller bolts to a torque of 100 Nm.
Use a torque wrench for this.
20
4
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2007.03.07
The horizontal system
-
The horizontal motor
The inclination sensors on the sensor board and the gyro sensor on the main board. The
replacement procedures for these printed circuit boards are described in Chapter 6.
4.1 The horizontal motor
Disassembly
2. Disassemble the charger assembly and the overspeed governor. See Chapter 1.
3. Remove the travelling gear. See Chapter 3.
4. Disassemble the service board. See Chapter 6.
5. Disconnect the horizontal motor's supply cables from the motor module.
6. Remove the mounting bolts (1) from the horizontal motor (2).
7. Pull the horizontal motor out of the frame.
1
2
Fig. 4-1
Disassembling the
horizontal motor
Fig. 4-2
Disconnecting the
horizontal motor
Assembly
Assembly is done in the reverse order. Ensure that the supply wires are connected correctly (red is +,
green is -).
CAUTION
Ensure that the leveling motor cable points towards the service board.
21
Flow2 stairlift
The horizontal system
22
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5
Flow2 stairlift
2007.03.07
The swivel system
-
The swivel mechanism and the optocouplers.
5.1 The swivel mechanism and the optocouplers
CAUTION
Disassembly
1. Remove the chair base from the stairlift. See Chapter 2.
2. Remove the service cover and the swivel cover. See Chapter 1.
3. In case of an automatic swivel:
a. Remove the left battery and frame cover. See Chapter 1.
b. Disconnect the swivel motor supply cable from the MCM module.
C. Disconnect the encoder (1) and the optocoupler (2) connections (squeeze and zero) from
the sensor board.
d. Remove the cables under the guide and ensure that they are completely clear. Cut any tie
wraps.
1
2
Fig. 5-1
Disconnect the cables
from the sensor board
Fig. 5-2
Disconnect the swivel
mechanism
4. Remove the four bracket mounting bolts and remove the bracket.
5. Disconnect the swivel mechanism.
23
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2007.03.07
The swivel system
6. In case of an automatic swivel:
a. Remove the four mounting bolts and remove the swivel
mechanism cover.
b. Check the two optocouplers (1 x for the obstruction
safeguard and 1 x for the mid position). Replace the
optocouplers if they are defective.
Fig. 5-3
Disconnect the swivel
mechanism
Assembly
Assembly is done in the reverse order. Pay attention to the
following instructions:
-
Position the swivel mechanism with the flat side towards the
rear.
-
The connecting wires for the obstruction safeguard and mid
position optocouplers are marked on the connector and on
the sensor board. Connect them correctly.
-
24
1
2
Feed the automatic swivel supply cable through the frame
Fig. 5-4 Cable routing
covers to the Mid Current Module (MCM), position the strain
relief clamp (1) and re-secure the cable with a tie wrap (2). The position of the supply cable
under the strain relief clamp is marked.
6
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2007.03.07
The printed circuit boards
-
The main board
-
The drive motor encoder system
-
Other printed circuit boards.
6.1 The main board
CAUTION
Disassembly
1. Remove the covers required and the main fuse from the
stairlift. See Chapter 1.
2. Free the support plate with the power board and the motor
module by straightening the attachment lips with a pair of
wire-nosed pliers. The support plate can be removed
completely.
3. Remove the connectors from the main board.
Fig. 6-1
4. Remove the main board:
Freeing the support
plate
a. Remove the mounting screw.
b. Slide the main board to one side and remove it from the mounting pins.
Assembly
Assembly is done in the reverse order. Ensure that the connectors are securely connected to the
main board before you secure the mounting lips.
The new mainboard does not contain any software or customer data. The associated customer's
Flash card located in the rail end cap is needed for this purpose.
Programming
25
-
Switch the lift off.
-
Put the flash card with the (new) software version in the drive unit.
-
Press and hold the program button located on the main board next to the flash card.
-
Switch the lift on.
-
Keep the program button still pressed for at least 2 seconds.
-
The lift is programming the main software and is finished when you hear a ping sound.
-
Then keep the program button pressed until you hear a 'ping'; in the display you will see pr.g.
Flow2 stairlift
2007.03.07
-
Switch the lift off and on, while switching on the lift check the software version; this is shown
briefly in the display.
-
The software has been installed. Now restore the customer, rail and parameter data.
-
Go to menu -9- and choose the ReS option, for Restore.
-
Go to mode -0- and switch the lift on again.
When a later version of the software is programmed (with a higher number), the programmed version
overwrites the previously installed version. With the program button it is only possible to program the
main and safety software. Parameters are not changed.
6.2 The drive motor encoder system
CAUTION
Removing the encoder board
1. Remove the covers required and the main fuse from the stairlift. See Chapter 1.
2. Remove the printed circuit board by unscrewing the mounting screws.
Removing the encoder magnet
1. Disconnect the connector by lifting the locking plate a little.
2. Pull the magnet off the drive shaft. Use a pair of wire-nosed pliers for this and use the
suspension roller frame as a leverage point.
Fig. 6-2
26
Removing the magnet
Fig. 6-3
Removing the encoder
2007.03.07
Flow2 stairlift
Installing the encoder board
-
The two Hall sensors must be at equal distances from the magnet and not touch it.
Installing the encoder magnet
-
Always replace the old magnet with a new one. There is a major chance that the old magnet
will be damaged during removal.
-
Do not touch the Hall sensors. Place the magnet very carefully over the drive shaft and the Hall
sensors.
-
The magnet must not touch the Hall sensors.
6.3 Other printed circuit boards
CAUTION
Disassembly
2. Remove the connectors of the board that you are going to disconnect.
3. Remove the printed circuit board by very carefully pulling it off the spreader plugs. If this is
difficult, you can use a plastic pin to lift the board slightly.
Assembly
Assembly is done in the reverse order. Observe the polarity of the cables (red is +, black or green is ) and when refitting the receiver module, ensure that the antennas do not lie against the metal frame.
This can result in disrupted communication.
27

Flow2 stairlift Tab 07: Disassembly and assembly

Transcription

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