Meyra 2.322 Manual

We move people.
Maintenance and Service
manual
Electric wheelchair
Model 2.322 with operating module R-Net
en

2
Contents
General 5
Foreword 5
Requirements concerning workshop personnel 5
Customer support 5
Information to maintenance and service work 6
Working on the vehicle 6
Vehicle identification 7
Term definitions 7
Service position 7
Overview 8
Model 2.322 8
Safety information 9
Storage 9
Required tools and aids 9
Adaptation and adjustment jobs 10
Leg support 10
Lower leg support 10
Height adjustment footplate/footboard 10
Angle adjustment of the footplate 10
Angle adjustment of the footboard 11
Depth adjustment of the footboard 11
Leg support upper part 12
Adjusting the depth of the calf pads 12
Adjusting the height of the calf pads 12
Width adjustment of the leg supports 12
Stump support 13
Repositioning the leg stump support 13
Repositioning the leg stump cushion 13
Arm supports 14
Adjusting the height of the arm supports 14
Depth adjustment of the arm support pad 14
Adjusting the clothes guard 14
Depth adjustment of the clothes guard 14
Cable fitting 14
Back support 15
Adjusting the seat depth 15
Back support upholstery 16
Cable fitting 16

3
Head support 17
Height adjustment and removal of the head support 17
Adjusting the position of the head support 17
Mounting the head support 17
Seat width 18
Adjusting the seat width over the arm supports 18
Seat depth 19
Adjusting the seat depth through the position of the back support 19
Seat inclination 20
Mechanical seat angle adjustment 20
Electrical adjustments 21
Adjusting the angle of the back support 21
Replacing the adjustment for angle adjustment 21
Seat inclination (camber) 22
Replacing the adjustment motor for seat inclination 22
Wheels 23
Wheel change 23
Disassembly of the wheels 23
Assembly of the wheels 23
Changing the tyres 24
Disassembly of the tyres 24
Assembly of the tyres 24
Revetment 25
Replacing revetment parts 25
Fuses 26
Main fuse 26
Electronic security 26
Power module 26
Particularities of the 15km/h-version 26
Adjustment module R-Net 26
Steering-/Lighting module 26
Lighting 27
Headlights 27
Adjusting the headlights 27
Replacing a light bulb 28
Headlights 28
Front indicator 29
Rear indicator 30
Rear light 30
Replacing the batteries 31
Removing the batteries 31
Mounting the batteries 31

4
Battery charger 32
Drive 33
Removing the drive 33
Mounting the drive 33
Carbon brushes 34
Disassembly of the carbon brushes 34
Assembly of the carbon brushes 35
Collector 35
Vehicle suspension 36
Suspension of the chassis 36
Adjusting the seat suspension 36
Power module 37
Programming the driving behaviour 37
Standard setting of the R-Net driving parameters, profile 1, 2, 8, with 6 km/h 38
Standard setting of the R-Net driving parameters, profile 1, 2, 8, with 10 km/h 39
Standard setting of the R-Net driving parameters, profile 1, 2, 8, with 15 km/h 40
Replace power-, steering-/lighting- resp. adjustment module 41
Power module 41
Steering-/Lighting module 41
Adjustment module 41
Plug assignment 42
Error indication 43
Error indication R-Net 43
LCD-Display 43
LED indicator 44
Error diagnostics 44
Functional checks 46
Checking the cable layout 46
Inspection during standstill 46
Test drive 46
Braking distance 46
Maintenance 47
Reinstallment 47
Maintenance checklist of the annual maintenance jobs 48
DIN norms and guidelines 49
Torque according to DIN for screwed connections 49
Circuit diagram 50
Notes 51

5
GENERAL
Foreword
This maintenance and service manual is intended
for the specialist dealer and describes all adapta-
tions and adjustments as well as the required ser-
vice, maintenance, repair and replacement jobs.
☞This maintenance and service manual is sup-
plemented by the following documents:
– the model dependent operating manual
(an operating manual is supplied with each ve-
hicle),
– the model dependent operating manual < Op-
erating module >,
(an operating manual is supplied with each ve-
hicle),
– the safety and general handling instructions <
Electronic vehicles >,
– the model dependent spare parts list,
(the required spare parts list can be obtained
through the specialist dealer access on our
website).
All required documents as well as additional infor-
mation to our products are located on our website
under:
< www.meyra.com >.
Requirements concerning workshop
personnel
Special knowledge is required to carry out the
maintenance and service work described in this
maintenance and service manual and may there-
fore only be carried out by educated qualified per-
sonnel.
☞We therefore offer vehicle specific courses that
provide the specialised personnel with the re-
quired qualification.
!
Attention:
During all corresponding work there is always a
danger of jamming or skin abrasions!
.Knowledge of this maintenance and service
manual as well as the supplementing docu-
ments (view chapter foreword) is mandatory
for the correct and safe execution of the work
required on the wheelchair.
☞The document, especially the chapter Safety
information on page 9, must therefore be
read carefully and observed by all persons, that
are assigned to work on the wheelchair.
Customer support
Technical questions will gladly be answered by
your national Meyra distribution partner.

6
Working on the vehicle
☞For maintenance and repairs the vehicle is to
be switched off and secured against uninten-
tionally rolling away.
☞Additionally the main-/battery fuse is to be re-
moved.
☞Before working on electric parts, the plugged
connection from the battery cable to the pow-
er module might also need to be disconnect-
ed.
☞Before working on electric adjustment the cor-
responding plug of the connection cable is to
be pulled.
Information to maintenance and
service work
☞Every wheelchair should undergo inspection
once a year.
– The inspection increases the safety and ex-
tends the life span of the wheelchair.
☞For highly strained wheelchairs for example in
case of:
– extreme strain,
– user still growing,
– users with changing disease patterns,
it is recommended to have the wheelchair
checked, maintained and if required adjusted
semi-annually.
– Only original spare parts are to be used for all
maintenance and service.
☞Before beginning with the service work check
the general condition of the wheelchair.
☞All screwed connections, if not otherwise not-
ed, tightened according to table Torque accord-
ing to DIN for screwed connections on page 49.
☞The maintenance schedule (Checklist) should
serve as a master for copying.
– Maintenance schedules that have been
filled out are to be kept on file and a copy
handed to the customer!

7
VEHICLE IDENTIFICATION
For a definite vehicle identification in case you have
questions, or for spare parts orders, the following
data can be read off of the type plate:
☞view sample-type plate [1]
1. The model description (in the field Type resp.
Typ)
2. The serial number (beside the field SN)
TERM DEFINITIONS
Here you will find explanations to the term used in
this manual:
Service position
The service position [2] describes a vehicle with
corresponding seat position in order to enable e. g.
unencumbered maintenance jobs.
In order to reach the electronic module you have to
remove the battery cover (3).
1
2
3

8
OVERVIEW
Model 2.322
R-Net-operating module

9
SAFETY INFORMATION
☞Wear suitable clothing during service-jobs as
well as gloves and protective glasses when re-
quired.
– Danger of injuries caused by inappropriate
work clothes.
☞Secure the product against unintentional roll-
ing motions, tilting over or falling down e. g.
from a mounting rack.
– Damages due to a not secured wheelchair.
☞Clean/disinfect the product before inspection.
☞If necessary, observe the care instructions and
product specific inspection instructions in-
cluded in the corresponding operating manu-
al as well as the safety and general handling
instructions < Electronic vehicles >.
– Damages due to neglected cleaning.
☞Keep your workspace clean and only use clean
cloths.
– Damages caused by shavings and dirt parti-
cles.
☞Use only suitable tools.
☞View chapter Required tools and aids on
page 9.
– Damages caused by the use of incorrect tools.
☞Replace loose screwed connections with
thread safety with the respective nut or screw
and new thread safety.
☞If new screws or nuts with thread safety not be
available, apply liquid thread safety compound
with medium hardness e. g. Loctite® 241 or
Euro Lock A24.20.
– Damages caused by loose screwed connec-
tions.
Storage
Dismantled parts are to be placed resp. stored safe-
ly and protected as well as sorted by commission.
REQUIRED TOOLS AND AIDS
For adjustments and maintenance we recommend
the use of high quality tools.
☞High quality tools can prevent for example
damages to the surface of the frame as well as
minor injuries to the hand.
The tools required most frequently are:
– Socket wrench
– Open-end or ring spanner
– Hexagon socket spanner
– Phillips screwdriver
– Slot screw drivers

10
ADAPTATION AND ADJUSTMENT
JOBS
The following chapters describe the fitting of the wheel-
chair to the changing individual demands of the user.
LEG SUPPORT
Lower leg support
Height adjustment footplate/footboard
Version 1:
For adjustment of the height, loosen the respective clamp-
ing screw (1).
Version 2:
Loosen the respective clamping screw (2) to adjust the
height.
Angle adjustment of the footplate
1. For this loosen the screw (3) so far that it no longer
catches.
2. Disconnect the toothing of the footplate and adjust the
angle of the footplate.
3. Retighten the screw (3) of the footplate.
☞In doing so the teeth of the angle adjustment must join
again.
1
3
2
1

11
Angle adjustment of the footboard
1. Swivel the footboard down for angle adjustment [1]. Af-
terwards loosen the screws (2) on both sides.
2. Tilt the footplate to the desired angle and retighten the
screws (2) on both sides.
Depth adjustment of the footboard
The depth adjustment of the footboard is done by reposi-
tioning the removable distancer pieces (3).
1. Lift the loose side of the footboard slightly.
2. Reposition the desired amount of distancer pieces on
the lifted side.
3. Pull/press the distancers that are to be repositioned on
the right side of the footboard outward from the retain-
ing rod [4].
☞Note:
In certain angle settings of the footboard it is possible
that a removal or placing of certain distancer pieces is
not possible. Then fold up the footboard.
4. Reposition the footboard and insert the distancer piec-
es back again as far as possible to the right retaining
rod.
5. Swivel the footboard down and hook it into place.
1
3
4
2

12
Leg support upper part
Adjusting the depth of the calf pads
Loosen the screws (4) to adjust the depth of the calf pad.
Adjusting the height of the calf pads
Loosen the clamping screw (5) to adjust the height of the
calf pad.
Width adjustment of the leg supports
Width adjustment of the leg supports is achieved by reposi-
tioning the two leg support brackets.
– Loosen the respective clamping screw (6) to adjust the
width of the leg supports.
5
4
6
4

13
Stump support
The leg stump support can be used on the left and right
side by repositioning the bracket.
Repositioning the leg stump support
First unscrew the attachment screws (1) to reposition the leg
stump support. The reposition the bracket to the other side
and attach it.
Repositioning the leg stump cushion
First unscrew the screws (2) to reposition the leg stump
cushion. Then position the bracket turned by 180° on the
other side aligned with the holes (3) and retighten with the
screws.
1
3
2

14
ARM SUPPORTS
Adjusting the height of the arm supports
To adjust the height of the arm support, loosen the clamp-
ing screw (1), hold the arm support in the desired height
and retighten the clamping screw (1).
!
Attention:
Before loosening the clamping screws (1) secure the
arm support against falling down with your hand. –
Danger of jamming with disassembled or too loosely
screwed clamping screw (1)!
.During the adjustment the maximum arm support
height is reached when a mark becomes visible above
the receptacle tube [2].
.Ensure the tight fit of the clamping screw (1) in order to
prevent the arm support from sliding down.
Depth adjustment of the arm support pad
The attachment screws (3) are to be removed for depth ad-
justment of the arm support pad, e. g. after changing the
seat depth.
Adjusting the clothes guard
Loosen the clamping screws (4) to adjust the height of the
clothes guard.
Depth adjustment of the clothes guard
Remove the clamping screws (4) for depth adjustment of
the clothes guard.
Cable fitting
☞The cable of the operating module is fastened above
the clothes guard with a cable clamp (5).
2
44
5
3
1
3

15
BACK SUPPORT
Adjusting the seat depth
The seat depth can be changed by moving the back sup-
port to a different position.
Therefore remove up to three attachment screws (1) on
both sides.
☞Parallel repositioning of the back support.
☞Therefore observe the chapters Seat depth on
page 19 and Depth adjustment of the arm support pad
on page 14.
1
1
1

16
Back support upholstery
The back support upholstery [1] can be removed from the
back shell by opening the velcro fastener.
Cable fitting
The cable of the operating module is fastened back support
bracket with a cable clamp (2). 1
2

17
HEAD SUPPORT
The head support [1] is swivel proof, height and depth ad-
justable as well as removable.
☞Note:
We recommend the fitting of two rear-view mirrors for
driving with a head support.
Height adjustment and removal of the
head support
The head support can be detached or adjusted in height
after the clamping screw (2) has been slackened.
!
Attention:
The maximum height adjustment is indicated by the
marking!
Afterwards retighten the clamping screw (2).
Adjusting the position of the head support
Loosen the clamping screws (3) to adjust the position of the
head support.
Afterwards retighten the screws (3).
Mounting the head support
ErgoSeat:
The bracket (6) of the head support is mounted from the
back onto the designated position of the back support shell
[7].
1
5
3
3
2
4

18
SEAT WIDTH
Adjusting the seat width over the arm
supports
The seat width is adjustable by repositioning the arm sup-
ports outward/inward.
To reposition the arm supports loosen the clamping screw
(1) of the clamping guide.
☞Displace both arm supports by an equal distance after
slackening the clamping screw (1) on both sides.
!
Attention:
The maximum seat width has been reached when a
marking [2] is visible on the square tube.
2
1

19
SEAT DEPTH
Adjusting the seat depth through the posi-
tion of the back support
The seat depth can be adjusted by repositioning the back
support.
After removing the three attachment screws on both sides,
the back support can be positioned according to table
< Seat depth – position of the back support >.
Table: Seat depth – Position of the back support
Seat depth [cm] 43 46 49 53
Pos. back shell * 5 4 3 2
* Corresponds to the front assembly position of the adjustment
plate (a)
a
2 3 4 5
2

20
SEAT INCLINATION
Mechanical seat angle adjustment
The mechanical seat gradient angle can be set into 4 further
positions by repositioning the support brace (1).
1. Remove the screws (3) to reposition the support brace.
2. Position the support brace according to table < front
seat height >.
3. Reassemble the screwed connections (2).
☞Then carry out a function test.
☞For this observe chapter Functional checks on
page 46.
Table: Front seat height
Seat inclination (upper edge
seat frame) 2° 4° 6° 8° 10°
Attachment position for
screws A B C D E
111
2
2
A
B
C
D
E