Meyra Optimus 2 2.322 Service Manual Download Page 26

26

REPLACING THE RETURN SENSOR

If the steering wheels, after releasing the joystick (zero
position) do not align themselves in at least almost
straight direction the return sensor (1) is to be replaced.

Note:

If the return sensor is exchanged it has to be com-
pletely aligned again. View chapter < 

Alignment of

the return sensor 

>.

Pre-condition:

The wheelchair must be safely jacked up. The drive can
turn freely and the steering wheels can move freely.

– Remove the rear panel.

Replacing the return sensor:

– Disconnect the plugged connection (2) of the return

sensor. – For this activate the plug locking device
first.

– Dismantle the attachment screws (3).

– Screw on the new return sensor.

Note:

Secure the attachment screws (3) of the return sen-
sor with Loctite 243.

Mount the rear panel:
Check whether a bracket is mounted underneath the
panel.
View < 

Notes to bracket 

>.

1

2

3

3

Summary of Contents for Optimus 2 2.322

Page 1: ...SERVICE MANUAL OPTIMUS 2 MODEL 2 322 TOURING 928 MODEL 9 928 GB We move people...

Page 2: ...2...

Page 3: ...e and steering gear disengage 17 Functional checks 17 Replacing the bowden cable 18 Vehicle suspension 19 Suspension of the chassis 19 Adjusting the seat suspension 19 Revetment 20 Attaching the insur...

Page 4: ...us 50 Quick reset to standard values 50 Locking the drive program selection 51 Unlocking the drive program selection 51 Turning special mode F H on 52 Turning special mode off 52 Switching the wheel d...

Page 5: ...5 Fuses 69 Main fuse 69 Electronic security 69 Maintenance Servicing 70 Maintenance checklist 71 Electrical system 71 Mechanic 72 DIN norms and guidelines 73 Notes 74...

Page 6: ...t www meyra de REQUIREMENTS Special knowledge is required to carry out the mainte nance work described in this service manual and may therefore only be carried out by educated qualified personnel VEHI...

Page 7: ...d one after the other REMOVAL Switch the vehicle off and remove the main fuse Remove the front panel Hereto observe chapter revetment Remove the plus cable and the minus cable from the motor Pull back...

Page 8: ...ushes the contacts are anthracite coloured and shining When one or more carbon brushes are extremely or totally worn all carbon brushes are to be exchanged As a spare part the carbon brushes are suppl...

Page 9: ...e freely Put the drive push mode selection lever to Drive mode and set the brake lever for the drum brake to released Pull the main fuse A out of the fuse holder Dismantle the drive wheels 2 Hereto ob...

Page 10: ...10 REMOVAL Unhook the bowden cable of the drum brake on both sides 3 Unhook the bowden cable of the magnetic brakes B 4 Dismantle the drum brake pads 5 Hereto observe chapter Drum brake B 3 4 5...

Page 11: ...the rocker is to be removed Remove the shock absorber Note Before removing the screws D support the drive unit so that it cannot fall down Unscrew the joint bolt E of the rocker Remove the cable bind...

Page 12: ...1 have to be adjusted Therefore observe chapter Drum brake adjustment FUNCTIONAL CHECKS Inspection during standstill Check all attachments and connections Do a visual check of the complete vehicle Swi...

Page 13: ...magnetic brake the drum brake MOTOR BRAKE The effectivity of the motor brake depends on the pro gramming of the power module FUNCTIONALITY With retracted driving lever the induced motor volt age is sh...

Page 14: ...ng the adjust ment screw turning outward spanning For inspection carefully move the brake lever back and forth and check the braking function by turn ing the respective drive wheel Note The bowden cab...

Page 15: ...for the drum brake Therefore observe chapter Revetment panels paragraph Removing the side panel Set the selection lever to push mode Set the brake lever of the drum brake to released Lift the bowden...

Page 16: ...e to remove the defec tive electro magnetic brake Afterward the three at tachment screws C must be dismantled Therefore observe chapter Replacement of the drive unit MOUNTING Assembly of the electro m...

Page 17: ...screw Fine tune the bowden cable by turning the adjust ment screw turning outward spanning Note The bowden cable is adjusted correctly when the aeration lever of the magnetic brake 1 is barely held i...

Page 18: ...d of the cable upward and push the press nip ple A axially out of the groove 2 Unhook the bowden cable on the magnetic brake 2 3 Unscrew the adjustment screws B C from the coun ter bracket and lift th...

Page 19: ...of the suspension the adjustment ring 2 is screwed forward or backward accordingly In doing so the following indications are valid Adjustment ring slightly screwed a up to 80 kg Soft suspension low us...

Page 20: ...resp the drum brake lever 4 During assmebly of the selection lever drive push mode resp the drum brake lever 4 remember to insert the pressure spring Model 2 322 Pull out the drive push mode selection...

Page 21: ...direc tor On older vehicles this bracket is missing and therefore needs to be added on 7 Parts required for adding on the bracket 1x 8 109 796 bracket for the rear panel 2x 207 319 400 self tapping sc...

Page 22: ...wden cable For this first lift the bowden cable sleeve out of the centring device 4 The guide the bowden cable counter clockwise around the eccentric shaft and thus loosen it out of the groove 5 After...

Page 23: ...ints 8 to the steering knuckle Insert the plug on the power module The locking device must lock into place Hook the bowden cable back into place For this push the press nipple axially into the round g...

Page 24: ...he alignment measure in the back horizon tally at axle height between the rim horns B The alignment is adjusted correctly when the rear rim horns are 2 mm further apart than the front rim horns 2 mm t...

Page 25: ...ter checking the alignment Note When turning the tie rods take care that the rub ber buffers 2 are not displaced Adjust the straight course by corresponding turns of both tie rods Retighten the counte...

Page 26: ...re condition The wheelchair must be safely jacked up The drive can turn freely and the steering wheels can move freely Remove the rear panel Replacing the return sensor Disconnect the plugged connecti...

Page 27: ...ard and take the measurement X between the nut and housing 1 Switch the operating module on 2 Press the joystick a short time 3 Align the potentiometer axle with a slot screw driv er from the bottom t...

Page 28: ...in pairs Attention Never loosen the connection screws of the rim halves B to disassemble the wheel Danger of injury The connection screws are marked with red caps Never loosen the screws B for disasse...

Page 29: ...ention During assembly the rim halves may not damage the tube or let it be jammed 1 Place the tyre with crease free tube between the rim halves If necessary observe the running direc tion of the tyre...

Page 30: ...e vehicle Over the bus cable data is transferred between the modules of the vehicle view diagram below The or ganisation of the data is performed by the CAN bus software Hand brake Push switch Speedom...

Page 31: ...wing characteristics same operating module for al vehicles with CAN bus control enforced joystick with dead man function LED report for lighting direction indicator hazard warning flashers three digit...

Page 32: ...s now locked and can be switched off Switch functions To supervise the settings for the drive resp push mode and the faultless functioning of the micro switches the display shows the switch setting s...

Page 33: ...ighting left Lenkservo Steering motor Bus Bus cable POWER MODULE The power module PM 3 stores the settings of the driving parameters and adopts as the power electronic the addressing of the driving an...

Page 34: ...ASSIGNMENT XX End switch on two motor wheelchairs and on the adjustment motor 1 mounted to the back End switch adjustment motor 4 On one motor wheelchairs End switch adjust ment motor 3 X1 Switch res...

Page 35: ...trally stored on the power module Current software updates for the single CAN bus modules is downloaded per internet from a Meyra Homepage Site and transferred to the respective mod ule The software v...

Page 36: ...haracteristics 3 Locking or activating the amenability of driving be haviour over the operating module Locking or activating the program selection P1 P5 for the user Selecting horn function Setting th...

Page 37: ...load of new wheelchair software to the wheelchair Setting the wheelchair type Basic settings resets the parameters to the manu facturer settings Setting the driving parameters back to the manu facture...

Page 38: ...les Time indicator for the last 10 errors Error description for the listed error codes Update per internet Internet connection for downloading new software Adjustments 4 Data recorder for the current...

Page 39: ...ote If a notebook PC is used ensure that the battery of the PC is completely charged be fore starting Under all circumstances make sure that during the download the wheelchair is not switched off no p...

Page 40: ...key Note The off switching procedure may take up to 15 sec The red and green LED light up short ly in the operating module at the moment when the CAN Bus system switches off After the system has swit...

Page 41: ...ng required for the wheelchair type view table 1 and 2 3 For confirmation press the left key 6 The display shows HHH 4 Press the right and lower service key 2 3 simulta neously and keep them pressed A...

Page 42: ...ng 10 km h Optimus 10 km h Optimus 2 Touring 928 6 km h Optimus 2 Touring 928 10 km h Optimus 2 Touring 928 12 km h Optimus 2 Touring 928 15 km h Table 2 One motor drive Changing the wheelchair type S...

Page 43: ...changed Table 1 Standard manufacturer setting of the driving programs Program Characteristic Program 1 Indoor soft Operating indoors soft driving behaviour very slow and very soft Program 2 Indoor nor...

Page 44: ...ving set point is delayed through a run up ramp 1 stands for longest acceleration period 9 stands for the shortest acceleration period 4 Brake delay The values 1 to 9 set the time that the driving set...

Page 45: ...position This means the steering set point is delayed through a run down ramp 1 stands for the longest delay period 9 stand for the shortest delay period 8 Steering null zone The steering zero zone i...

Page 46: ...ne by press ing a certain key combination on the operating mod ule view chapter switching into the adjustment modus PROGRAMMING FOIL When the adjustment modus is activated the function of the keys cha...

Page 47: ...nt modus has been activated FUNCTIONS Adjustment of the driving behaviour consists of six parts Pressing the joystick key 4 The joystick priority of the maximally connected 3 joysticks can be deter mi...

Page 48: ...ed first has the highest pri ority The joysticks that are not aligned are deacti vated While the first joystick is aligned e g the ex ternal joystick for an attendant A the display changes to Display...

Page 49: ...eter of the selected program and its contents e g 1 5 for the first param eter with the adjusted parameter value 5 Selection of the parameter Press the bottom service key 3 to select the param eter fr...

Page 50: ...switched to the regular drive mode QUICK RESET TO STANDARD VALUES It is possible to easily reset the values to the standard manufacturers setting should you have lost track dur ing the adjustment Init...

Page 51: ...ch the wheelchair back on After the initialisation phase the display shows HHH as a signal that the adjustment modus has been activated 6 Press the up key 9 7 Press the right and lower service key 2 3...

Page 52: ...switches the wheelchair off Then release all keys 3 Switch the wheelchair back on After the initialisation phase the display shows HHH as a signal that the adjustment modus has been activated 4 Press...

Page 53: ...lchair off Then release all keys 3 Switch the wheelchair back on After the initialisation phase the display shows HHH as a signal that the adjustment modus has been activated 4 Press the right key 5 T...

Page 54: ...djustment by one step means a change of about 0 1 km h final speed Proceed as follows 1 Switch on the wheelchair Place the programming foil 2 Press the right and lower service key 2 3 simulta neously...

Page 55: ...ogramming foil The horn signal can be switched on or off while giving a turn signal or driving backwards Press and hold the minus key 8 Switch off the operating module The change will become effective...

Page 56: ...N BUS ERROR LIST E16 The temperature of the power module is too high after and over load of electronic and or drive motor Te mp er a tu re rise power mod ule Switch the wheelchair off let the electron...

Page 57: ...f PM1 Magnetic brake error motor defect brush es motor cable er ror error in the pow er level exchange power module Battery over voltage Battery overcharge while driving on slopes with filly charged b...

Page 58: ...check the function of the mag netic brake CAN BUS ERROR LIST PAGE 3 Error on the actual val ue potentiometer of the steering servo Cable plug error to the steering servo OPTIMUS actual value po tenti...

Page 59: ...AN BUS ERROR LIST PAGE 4 Temperature rise of the adjustment module The temperature of the adjust ment module is too high overload of the electronic and or adjust ment motor Switch the wheelchair off l...

Page 60: ...is elec trically blocked Move the brake release lever to drive mode SCH Magnetic key The wheelchair is blocked against foreign use with help of the mag netic key Unlock the vehicle with help of a mag...

Page 61: ...that is to be replaced For this activate the plug locking device Disassemble the module and mount the replacement module Plug all plugs back into the new module Note Most of the plugs are secured aga...

Page 62: ...t adjust to the desired position and tighten the clamping screw D Insert the connector plug fort he operating module E With the locking bolt A depressed swivel the ca ble protection up F in doing so s...

Page 63: ...the front out of the brack et 1 Turn the bayonet catch by about 15 counter clock wise and pull A Keep hold of the headlight in order to prevent it from turning along Remove the defective bulb from th...

Page 64: ...touch the halogen bulb with bare hands Replace the bayonet catch into the headlight insert and turn by about 15 clockwise 4 Push the headlight insert A with the joint pinion C aligned horizontally in...

Page 65: ...ent screw s and remove the dispersion plate Replace the defective light bulb Remount the dispersion plate Attention Watch for the correct voltage of the replacement bulb Filament bulbs A Headlight hal...

Page 66: ...resistance 0 2 Ohm in the charging cables and plugs already prevent a complete charging Plugs that become hot during charging are to be replaced BATTERY CHARGERS Note When changing to batteries with c...

Page 67: ...long storage possible without recharging Disadvantages high acquisition costs less specific capacity than wet batteries Note Do not use starter batteries but only batteries that are declared as drivi...

Page 68: ...hing rinse immedi ately under running water If necessary place an emergency call Fill up missing acid level with distilled water The acid level is correct when it is a just above the filling hole inse...

Page 69: ...components except for the batteries are electronically protected by the power module B The power module also sees to a power limitation of the motors In case if a shortage only the defective componen...

Page 70: ...he maintenance the itemised maintenance check list can be used The maintenance checklist is designed for duplication through copying The filled in maintenance checklists are to be add ed to the docume...

Page 71: ...ed and without jamming points view chapter replacement of the CAN Bus modules checking the cable layout Plugged connectors undamaged and not corroded Are the cables to the lighting units and sensors u...

Page 72: ...t after the driving encoder is released at maximum speed with the max permitted overall weight 1 0 m braking distance at 6km h 1 5 m braking distance at 8km h 2 1 m braking distance at 10km h 2 9 m br...

Page 73: ...a de www meyra de info ortopedia de www ortopedia de Table Torque according to DIN for screwed connections Thread diameter Tightening torque M 4 3 Nm M 5 5 Nm M 6 10 Nm M 8 25 Nm M 10 50 Nm M 12 85 Nm...

Page 74: ...74 NOTES...

Page 75: ...75 NOTES...

Page 76: ...iebsgesellschaft mbH Meyra Ring 2 D 32689 Kalletal Kalldorf P O Box 1 703 D 32591 Vlotho Fon 49 0 5733 922 355 Fax 49 0 5733 922 9355 info meyra de www meyra de info ortopedia de www ortopedia de 205...

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