Invacare Spectra Plus User manual

Section Spectra Plus Tech Manual
Page 2 of 78 19/01/2004
CONTENTS
Introduction 2
Recommended Service Procedure 3 – 8
WarrantyStatement 9
Specification 10
Section 1 SERVICE MAINTENANCE
DriveWheelRemoval 11
RearWheelandTyres 12
CasterWheelandFork 13
Caster Wheel and Fork – Dismantling 14
Caster Wheel and Fork – Re-Assemble 15
DetachableMotors 16
MotorAssembly 17
GearboxAssembly 18
MotorAssembly 19
GearboxAssembly 20
SeatandBackrestAdjustment 21
Seat Death and Back Angle Adjustment 22
Armrest Support Assembly 23
Tension Adjustable Backrest / Manual Tilt-in-Space 24
Backrest Support Assembly 25
Care and Maintenance Vinyl Upholstery 26
Lateral Support 27
Footrests 28
Footrests 29
Footrests 30
Operating the Chair Outdoors – Kerb Climbing 31
Transporting the Chair 32
Transporting the Chair 33
TrayAssembly 34
Section 2 PILOT CONTROLLER SYSTEMS
PILOT+CONTROLLER 1- 1. Operation 36 - 46
REMOTE OPTIONS 2- Programming 47 – 59
Chin / Centre Control 60 - 62
DualAttendant 63-66
JoystickControlKnobs 67
PILOT + CHIN MODULE 1- Operation 69 – 77
2- Programming 78 – 87
Programme Settings 88
DYNAMIC DL CONTROLLER Operation 89 – 90
Checking for Faults 90 - 93
Section 3 BATTERY CHARGER
Battery Charger Specification 94 - 95
Battery Charger Operating Instructions 96 – 97
Battery Charger Test Aid 98

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INTRODUCATION
This manual is intended for use by trained and approved Service Agents to repair Invacare powered
wheelchairs. Models covered in this manual are-
Sufficient trouble-shooting information in provided to allow servicing to major component level. Brief
descriptions of operation and motor construction are included a background information. However, it is
recommended that faulty battery chargers and motors are returned to Invacare for replacement. Controllers
should be returned to Penny & Giles as per the recommended procedure.
APPLICATION
Invacare power chairs enable those who have an impaired mobility to lead a full and independent life. They are
designed to give safe and reliable service when used under normal use (as instructed in the Owner’s Manual).
Careful use, dry storage and regular maintenance will contribute to long and reliable service. Prolonged
exposure to, or operation in, harsh weather conditions is not recommended.
For further application information, consult the Owner’s Manual. There are also several user adjustments
explained in the Owner’s Manual.
SAFETY FEATURES
Invacare power chairs have a high level of features designed to increase safety, including:-
Electronic/Dynamic Braking
The power chair will brake the motor and charge the battery automatically when decelerating or going
downhill. Excessive speed while coasting downhill is therefore prevented and range maximized.
Fail-Safe Solenoid Brakes
Whenever the power chair is stationery or switched off, the brakes are automatically applied. They operate
promptly when the joystick is released and returned to the central position. They will reduce roll-back on
ramps and hills to a minimum.
WARRANTY
Warranty terms and conditions and recommended procedures are outlined in this Technical Service Manual.
Individually applied warranties are included in the User Manual.

Section Spectra Plus Tech Manual
Page 4 of 78 19/01/2004
RECOMMENDED SERVICE PROCEDURE
At 6 month period
The following schedule should be used in conjunction with Service Programme Sheet.
1 Upholstery
Check seat fittings and screw fasteners on back, seat and armpad assemblies and for upholstery wear.
2 Control Module
On/Off Switch: Press switch down and up several times, making sure the display is
illuminated and switch is operating smoothly.
Output Wiring: Check the output socket is located into the control module and is secure.
Visually check output cable for damage or incorrect route through
framework.
Speed Control: Inspect speed control knob and fixing. Operate speed control making sure
output speed of motors is proportional to switch position.
Joystick Control: Visually inspect the joystick control knob, shroud and gaiter. Operate the
joystick through all the driving modes.
Mounting Make sure control module is correctly fitted to armrest. Check position of
joystick to customer requirements.
Warranty Seal Inspect the control module to see if the manufacturer’s seals are intact.
3 CASTORS
Stem Bearings Check stem bearings for free play and end float. adjust as necessary.
Wheel Bearings Rotate wheel and check bearings for excessive play or noise.
Fork & Axle Check axle bolts and nuts for tightness. Inspect fixing of fork to stem.
Tyres Inspect for damage or foreign objects. Test pressure (pneumatic) as
indicated or tyre wall.
4 FRAME
Foot/Legrests: Check chrome or paint finish. Inspect action of cam lock and fittings. Adjust
and tighten footrest position. Check hinging of footplates. Apply WD4O.
inspect operation of legrest elevation and calf pad movement.
Anti-Tip Levers: Check fixing and operation. Make sure wheel is in position on stop bar.
Apply WD4O.
Armrests: Inspect all fittings and screws. Ensure arm locates into sockets smoothly.
Check operation of locking devices. Ensure controller moves freely in slide
tube. Check for correct position of stop screw. Check sidepanels for
correct position and wear.
Semi-reclining Backs check fittings and forward folding/detachable operation. On powered
reclining backs check function and mounting of actuator. Inspect cable and
hand unit. Check backpost mounting brackets for tightness. Ensure both
sides are in same position.

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5 BATTERIES
Battery Box Inspect battery box and lid, ensure lid is secure.
Batteries: Check battery terminals are tight, clean and apply silicon grease or
petroleum jelly.
Junction Box if fitted
(Powered actuators) Check mounting of junction box to battery box. Inspect wiring harness
form junction box to actuator module. Inspect drive plug for function and fit.
Check operation of circuit breaker. Check motor socket fittings.
Control Main Module
( Remote): Check mounting of controller output module to battery box tray. Check
multi-pin connector for fit. Make visual inspection of main module for
damage. Inspect warranty seal. Check rear battery tray fittings, ensure
secure mountings.
6 MOTORS
Mountings: Isnpect motor mountings and fittings. Check function of detach facility and
securing of release knob.
Armature Brakes Lift rear of chair and mount on blocks. With the drive engaged run motors,
return control lever to the central position and Observe operation of
brakes. Blow out dust from brake lining.
Wiring & Connections Check connections to battery box, make sure the latches are holding the
sockets and plugs in position inspect wiring and attachment to frames.
Brushes Remove brush cover from sides of motors, observe position of brush in
holder. Re-locate in same position. Run motors with drive disengaged and
observe brush contact with armature. Blow out carbon deposits.
7 FINAL DRIVE
Disengage
Mechanism With wheels raised from the ground engage and disengage final Drive, check
for positive re-engagement of drive. Lubricate.
Drive Shaft: Revolve wheel assembly with drive disengaged and check for excessive
endfloat and bearing wear.
Wheel Runout Revolve wheels, checking for excessive ‘tow in and excessive side movement
of rims. Check for rim damage,
Tyres Check tyres for damage and foreign objects. Test pressure (pneumatic) as
indicated on the tyre wall.
8 KERB CLIMBER
Operation Check kerb climber on its mounting on the chair, and cam lock operation.
Operate forward and return position. Ensure climbing foot is clear of the
ground in normal parked position.
Mounting Locate the kerb climber to the locating pins, check the locating pin is locking
the kerb climber into position. Lubricate with WD4O.
9 CHARGER
Mains Plug Check for any damage to pins or case, inspect cable and entry into charger.
Check correct fuse rating ( 5 amp)

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Page 6 of 78 19/01/2004
Jackplug Inpect plug and lead for damage. Check entry into charger.
Charging Function Connect the jackplug into the charging socket, plug the mains plug into the
normally used mains socket. Switch mains supply on, and check that the
‘mains on light illuminate. The green ‘charging light will come on some
seconds after this. Because of the length of time involved in the full charging
sequence, it is not possible to check the complete charging function.
As the owner whether the charger has been completing its charge
programme, through to the red charge complete light illuminating.
10 TEST RUN A short test run should now be carried out to test the driving
functions of the chair. If a kerb climber is fitted this also should be tested.
RECOMMENDED SERVICE PROCEDURE.
At 12-18 month period
The following schedule should be used in conjunction with the Service Programme Sheet and Technical Manual.
1 Upholstery
Check seat fittings and screw fasteners on back, seat and armpad assemblies and for upholstery wear.
2. Control Module
On/Off Switch Press switch down and up several times, making sure the display is
illuminated and switch is operating smoothly.
Output Wiring Check the output socket is located into the control module and is secure.
Visually check output cable for damage or incorrect route through
framework.
Speed Control Inspect speed control knob and fixing. Operate speed control making sure
output speed of motors is proportional to switch position.
Joystick Control Visually inspect the control lever knob. Shroud and gaiter. Operate the
joystick through all the driving modes.
Mounting Make sure module is correctly fitted to armrest. Check position of joystick
to customer requirements.
Warranty Seal Inspect the control module to see if the manufacturer’s seals are intact.
3. CASTORS
Stem Bearings Check stem bearings for free play and end float. Replace upper and lower
bearing each side.
Wheel Bearings Rotate wheel and check bearings for excessive play or noise.
Fork & Axle Check axle bolts and nuts for tightness. Inspect fixing of fork to stem.
Tyres Inspect for damage or foreign objects. Test pressure (pneumatic) as
indicated on tyre wall. Replace is excessive wear.
4. FRAME
Foot/Legrests. Check chrome or paint finish. Inspect action of cam lock and fittings. Adjust
and tighten footrest position. Check hinging of footplates. Apply WD4O to
moving parts. Inspect operation of legrest elevation and calf and movement.

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Anti-Tip Levers Check fixings and operation. Make sure wheel is in position. Replace if
missing or damaged.
Armests Inspect all fittings and scews. Ensure arm locates into sockets smoothly.
Check operation of locking devices. Ensure controller moves freely in slide
tube. Check for correct position of stop screw. Check sidepanels for
correct position and wear.
Semi-reclining Backs Check Fittings and forward folding/detachable operation. On powered
reclining backs check function and mounting actuator, inspect cable and
hand unit. Check backpost mounting brackets for tightness. Ensure both
sides are in same position.
Crossbar: Check
Crossbar Centre fixing is not overtightened. Lubricate at hinge points to sideframe
using WD4O.
5. BATTERIES.
Batteries: Check batteries for capacity. Replace if below specification.
Check battery terminals are tight. Apply silicon grease or petroleum jelly to
terminals.
Battery Box Inspect battery box and lid. Ensure lid is secure.
Junction Box if Fitted
(Powered actuators) Check mounting of junction box to battery box. Inspect wiring harness from
junction box to actuator module. Check operation of circuit breaker. Check
motor socket fittings.
Control Main Module
(Remote) Check Mounting of Controller output module to battery box tray. Check
multi-pin connector for fit. Make visual inspection of main module for
damage. Inspect warranty seal. Check battery tray fittings, ensure secure
mountings. Check programme is correct.
6. MOTORS
Mountings Inspect motor mountings and fittings. Check funtion of detach facility and
securing of knob. Lubricate sliding contact.
Armature Brakes Life rear of chair and mount on blocks. With drive engaged run motors
return control lever to the central position and observe operation of
brakes. Blow out dust from brake lining.
Wiring & Connections Check connections to battery box, make sure the latches are holding the
sockets and plugs in position. Check for discolouration and burning of
contacts (evidence of poor contact replace if burning excessive). Inspect
wiring and entry to motor brake up.
Brushes Remove brush covers from sides of motors, observe position of brush in
holder. Re-locate in same position. Run motors with drive disengaged and
observe brush contact with armature. Blow out carbon deposits, replace
brushed if less than 8mm in length.
7. FINAL DRIVE
Disengage
Mechanism With wheels raised from the ground engage and disengage final drive, check
for positive re-engagement of lever

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Drive Shaft Revolve wheel assembly with drive disengaged and check for excessive
endfloat and bearing wear.
Wheel Runout Revolve wheels checking for excessive ‘tow in and excessive side movement
of rims. Check for rim damage.
Tyres Check tyres for damage and foreign objects. Test pressure (pneumatic) as
indicated on the tyre wall. Replace if treadless.
CAUTION: Split rim wheel.
8. KERB CLIMBER
Operation Check kerb climber on its mounting on the chair and cam lock operation.
Apply WD4O. operate forward and return position. Replace rubber feet if
excessively worn. Ensure foot is clear of the ground in normal parked
position.
Mounting Locate the kerb climber to the locating pins, check the locating pins is
locking the kerb climber into position.
9. CHARGER
Mains Plug Check for any damage to pins or case. Inspect cable and entry into charger.
Check fuse rating fitted to plug (5amp). Check fuse rating at rear of charger.
Charger Plug Inspect plug and lead for damage. Check entry into charger. Replace if loose
in socket. (check for contact discolouration).
Charging Function Connect the charger plug into the charging socket, plug the mains plug into
the normally used mains socket. Switch mains supply on and check that the
mains on light illuminates. The green charging light will come on some
seconds after this. Because of the length of time involved in the full charging
sequence, it is not possible to check the complete charging function.
Ask the owner whether the charger has been completing its charge
programme, through to the red ‘charge complete’ light illuminating.
10. TEST RUN A short test run should now be carried out to test the driving
functions of the chair. If a kerb climber is fitted this also should be tested.

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Invacare UK Limited Service Procedure Serivce Programme
Dealer Name
Address
Customer
(Mr/ Mrs / Miss
Tel No.
Type Of Serivce – Period
Date Of Serivce
Product
Serial No.
Comments/Recommendations
Parts Replaced
Qty Part Part No Cost
Engineer
Please Print
Engineers Signature
Customers Signature
Date
Start Time Finsh
Date
Parts Cost
Approved Service Time 120
1. Uphlostery
Back
Seat
Armpads
Side Panels
Safety/Calf Strap
2. Control Moudles
On/Off Display
Output Wiring
Speed Control
Joystick
Mounting
Warranty Seal
Charger Socket
3. Castors
Stem/Bearing
Wheel Bearings
Fork & Axle
Cross Brace
4. Frame
Foot / Leg –Rests
Anit – Tip Wheels
Armrests / Supports
Folding / Rec Back
Corss Brace
5. Batteries
Batteries/Terminals
Battery Box
Battery Leads
Motor Sockets
Output Leads
6. Motors
Mountlings
Armature Brakes
Wiring & Connections
Brushes
7. Final Drive
Disengage Mechansim
Freewheel
Wheel Runout
Rim
Tyres – Pneumatic
8. Kerb Climber
Mountlings
Return Position
Rubber Feet
9. Charger
Mains Plug
Charger Plug
Charging Function
10. Function Run
Test Run
Information To Customer

Section Spectra Plus Tech Manual
Page 10 of 78 19/01/2004
DRIVE WHEEL REMOVAL
To remove the rear drive wheel for puncture repairs carefully follow these instructions.
Release the four bolts shown as A in the diagram. Check the tyres for wear and excessive, replacement is
recommended.
The wheel is a split rim. It is important that the bolts securing the rims together are NOT released if the tyre
pneumatic and INFLATED.
Upon re-assembly tighten the fixing bolts securely. The wheel is alloy. O not over tighten as this may damage
the wheel rim.
If the tyre is being inflated with the wheel on the chair, ensure the wheel is off the ground during inflation the
tyre slowly to recommended pressure, ensuring a even fit around the rim.
Drive Wheel-Locks – (Manual Brakes)
When transferring to and form the chair
ensure the wheel locks are firmly ON and the
motor drive is in the engaged position.
When transporting the complete chair in a
vehicle, it is important that motor drive is engaged
and the wheel-locks are firmly ON. This will aid the
use of the chair restraints and protect the motor/gearbox
from possible damage

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REAR WHEEL AND TYRES
PARTS:
1. Tyre
2. Inner Tube
3. Wheel Centre
4. Solid Tyre Wheel
5. Screw
6. Washer
TOOLS REQURIED:
Spanner 13mm
Mallet
Tyre Levers
Pressure Gauge
Pump
Vice
Talcum Powder
Valve Remover
Flat Bladed Screwdriver
INSPECTION
STEP 1
Check wheel is not buckled or physically damaged. Replace if required.
STEP 2
Check tyres for wear and correct inflation. Both wheels should allow the same degree of wear (see side of tyre
for pressure rating)
DISMANTLING
STEP 1
Jack up one of the gearboxes to life one wheel off the floor.
STEP 2
Remove the M8 wheel bolt with 13mm spanner.
STEP 3
Gently tap the wheel centre with a mallet and pull the wheel off the gear box shaft (take care not to loose the
key located in the gearbox shaft).
STEP 4 SOLID TYPE TYRE.
Visually inspect condition and wear of the tyre also inspect condition of the wheel center. If either are showing
signs of excessive wear and damage, replace immediately. We recommended that you do not repair.

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Page 12 of 78 19/01/2004
CASTOR WHEEL AND
FORK
PARTS
1. Castor fork
2. Washer
3. Nyloc Nut
4. Axle Bolt
5. Nyloc Nut
6. Pneumatic Castor
7. Bearing
8. Trye
9. Inner Tube
10. Hub Centre
11. Castor Wheel
12. Fork Stem
13. Bearings
TOOLS REQUIRED
19mm Socket Spanner X 2
Flat Bladed screwdriver
Mallet
Pressure Gauge.
Tyre Levers
Pump Drift
INTRODUCTION
STEP 1
Check castor wheels are not bucked for physically damaged. Replace if required.
STEP 2
Check that the wheel bearings run freely without excessive play.
STEP 3
Check that the castor wheel and fork nuts are tight.
STEP 4
Check that the castor forks are bent or damaged.
STEP 5
Check the crown/castor fork bearings for wear and correct adjustment,
STEP 6
Check tyres for wear and correct inflation. Both wheels should show the same degree of wear (see side of tyre
pressure rating) for tyre fitment see rear tyre section.
CASTOR WHEEL AND FORK
DISMANTLING
STEP 1
Remove castor socket cap with flat bladed screw driver, hold the lower fork stem nut secure with 19mm
spanner and remove the upper fork stem nut,
STEP 2
Gently tap the threaded end to the fork stem with a mallet taking care not to damage the threads. Remove the
castor fork assemblies.

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STEP 3
Leave out the top fork bearings carefully, using the fork stem as a lever. Take care not to damage the threads.
STEP 4
Remove the castor fork bearings using a drift and a mallet, tapping gently to avoid damaging the castor socket
and bearing.
STEP 5
To remove the castor wheels undo the axle nut with a 13mm spanner using a second spanner at the other end
of the axle to lock against rotation. Remove the axle both and remove the wheel from the fork.
STEP 6
Remove the bearings by hand.
To reassemble reverse step 6 & 7, but adjust tightness of nut until the wheel runs freely to a gradual halt.
a) If the wheel stops abruptly, loosen the castor axle nut.
b) If the wheel wobbles (sideplay) tighten the castor axle nut enough to allow free spinning without
sideplay.
TO RE-ASSEMBLE.
STEP 1
Insert the fork stem bearings using a mallet and drift across the bearing to prevent damage.
STEP 2
Start at the bottom and place the threaded and of the fork stem through both bearings and in the castor fork
socket.
STEP 3
Locate fork stem out on the threaded with a 19mm spanner just enough to allow the fork to swivel freely.
STEP 4
To check for correct tightness, perform the following test:
a) Tip chair backwards and rest the push handles on the floor (remove the battery boxes first).
b) Raise castor wheel towards ceiling, then gently push downward to either side. The wheel and fork
should freely rotate down and hang straight towards the floor after a pendulum- type swing>
NOTE
IF THE WHEEL STOPS ANGLED TO ONLE SIDE, LOOSEN THE FORK STEM NUT SLIGHTLY. IF THE
WHEEL CONTINUES TO SWING TO BOHT SIDES (LIKE A PENDULUM), TIGHTEN THE FORK STEM
NUT SLIGHTLY. CHECK BEARINGS FOR EXCESSIVE PLAY BY A GENTLY ROCKING THE FORK
ASSEMBLY.

Section Spectra Plus Tech Manual
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DETACHABLE MOTORS
For practical purposes and ease of operation, it is advisable to detach the motors as the last component of the
chair to be dismantled and to re-attach first.
PLEASE NOTE: Assistance may be required while this operation is carried out.
STEP 1:
Unscrew the knurled locking knob A. This can be unscrewed completely and still be retained in position.
STEP 2:
Support the weigh of the chair on the side the motor is being detached. Pull the motor assembly towards of
the chair, taking care to hold the motor assembly when it becomes detached. Repeat operation for both sides.
SPECIAL NOTE: Care must be taken when stowing the detached parts for transportation to ensure that no
damage occurs, particularly to the brake housing and gearbox unit.
To re-attach the motor assemblies, align the bottom tube rail with the tube of the motor assembly and push
firmly home. Ensure the locating pins B are aligned correctly and re-tighten fully the knurled locking knob A.
Do the same for both sides.
For ease of operation, is advisable to re-attach the motor assemblies as the first operation in the re-assembly
of the wheel chair after transportation.
NOTE: The disassembly and re-assembly of the motor assemblies can be handled and attached more easily if
the chair is carefully tipped into the front, taking into account that the leg rests are not attached.
The chair can be transported disassembled safely in a suitable vehicle. Reversing the above procedures
will make your chair ready at your destination.

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MOTOR ASSEMBLY
PARTS:
1. Electro-magnetic
Brake
2. Brush
3. Motor Plug
4. Motor Complete
5. Commutator
6. Motor End Cap
TOORLS REQUIRED
No 1 Philips Screwdriver
Flat Headed Screwdriver
Soldering Iron
Multi Meter
3mm Allen Key
INSPECTION
STEP 1
Check motor assembly for damage.
STEP 2
Set multimeter to continuity test.
STEP 3
Test continuity of motor leads and elector-magnetic brake leads (motor-lead shows in diagram). Brake
resistance should read 50 ohms – 80 ohms.
STEP 4
Check all joints for bad connection, cracked or dry solder joints and oxidation.
STEP 5
Check that all the brushes can move freely in the brush guides with no obstruction ( this can be easily done by
pulling on the free brush feeder wire).
STEP 6
Check that all the brushed are not chipped, cracked or worn.
STEP 7
Check that the brush spring is positioned to the center of the brush body to apply even force. Also check the
brush spring tension.
STEP 8
Check the condition of the brush feeder wire and check that the termination screws are secure.
STEP 9
Visually inspect the commutator for carbon deposits and remove with a soft brush.
NOTE:
ENSURE ALL THE SEGMENTS OF THE COMMUTATOR ARE NOT BRIDGED WITH CONDUCTIVE
MATERIALS (I.E. CARBON OR COPPER)

Section Spectra Plus Tech Manual
Page 16 of 78 19/01/2004
Dismantling
STEP 1
Remove the motor end via the two Phillips screws.
STEP 2
Remove the two/three electro magnetic brake fixing screws and remove the brake.
STEP 3
Remove the brush feeder wire termination screws, release the brush springs and remove brushes.
To reassemble reverse the step 1 to 4, taking care not to damage the brushes and ensure correct alignment of
the electro-magnetic brake.
Should there be fitting, scoring or wear then replace the Motor Unit.
NOTE:
WHEN REFITTING MOTORS, PLEASE ENSURE THAT BOHT SUPPLY WIRES ARE FASTENED TO THE
CONTROLLER IN SUCH A WAY THAT THE RIGHT HAND MOTOR CANNOT BE ACCIDENTLY
CONNECTED TO THE LEFT AND VISA VERSA.

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GEARBOX ASSEMBLY
PARTS
1. Motor Gearbox Clamp Nut
2. Gearbox Gasket
3. Declutching Lever Lower
4. Declutching Lever Upper
5. Gearbox Lid Screw
6. Motor Gearbox Clamp Screw
7. Lid to Gearbox Screw
8. Clamp
9. Key
TOOLS REQUIRED
5mm Allen Key
Pin Hammer
Punch
3mn Allen Key
Pliers
Vice
Spanner
8mm Spanner
INSPECTION
STEP 1
Check Casing for cracks or damage or
leakages.
STEP 2
Check Gearbox for noises (gears and bearings).
STEP 3
Check the declutching lever and mechanism engages and disengages correctly.
STEP 4
Check that the output shaft of the gearbox is not damaged or bent. Remove the rear wheel and inspect the key
and keyway for wear and correct fitting.
DISMANTLING
STEP 1
Remove the rear wheel from the gearbox.
STEP 2
Unplug the motor from the main control box. Loosen and remove the six gearbox lid securing screws. The
lower half of the gearbox will now detach from the top half, whilst still attached to the side frame of the chair.
STEP 3
To dismantle the declutching lever upper and lower parts, remove the allen screw and knock out the fixing pin
using a pin hammer and punch, separate the two halves.
STEP 4
To detach the gearbox from the motor, degrease the gearbox, remove the four fixing screws with an 8mmm
spanner, taking care not to deface or damage any gear teeth. Separate the gearbox and motor assembly.

Section Spectra Plus Tech Manual
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To reassemble reverse steps 1 to 4 ensuring correct motor to gearbox alignment is achieved. Replace both
gasket and re-pack the gearbox with ‘Shell Albida’ Grease (approx. 200g)
NOTE:
TO REFIT THE DECLUTCHING LEVER THE GEARBOX TOP MAY NEED TO BY REMOVED FROM THE
CHAIR AND A VICE USED TO CLAMP THE UPPER AND LOWER LEVERS IN PLACE.

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SEAT AND BACKREST ADJUSTMENT
Before, sitting in the chair, make sure it is NOT switched ON. If it is ON, the battery condition indicator (10
Bar display) will be illuminated..
Seat Depth Adjustment – 35 Mm Depth Adjustmen
The individual fitting of the seating allows the seat depth to be adjusted by 25mm (1½”) The adjustment, which
is usually only done once, is carried out as follows, you will need a large cross-headed screwdriver and a 13mm
spanner.
1. Prise off plastic cap at point A, unscrew and remove the screw and nut, repeat each side.
2. Move the backrest mounting bracket backwards to the extended position. Replace the nut and
screw into the selected hole and firmly fasten, replace plastic cap, repeat each side.
Backrest Angle Adjustement
The backrest angle can be adjusted from 90° rearwards through 12°. The adjustment, which is normally only
required to be done once, is carried out in the following sequence (see diagram) with the aid of the 12mm
spanner and cross-headed screwdriver. Do the same adjustment for both sides.
1. Release the lock nut B located on the cross-headed
screw
2. Unscrew the locking hand-wheel C partially out.
3. Screw the cross-headed screw in out to give the
desired position. Adjust position of hand-wheel as
necessary.
4. Position to lock B up to the mounting bracket and
fully tighten.
5. Re-tighten the hand wheel C fully, ensure backrest
assembly is secure.
Please note: Each backrest tube must be positioned in the
same plane or the backrest will be twisted.
The backrest can be either folded down or
detached from the chair base.
Follow these additional instructions:-
1. Unscrew the hand-wheel C approximately five full turns. Lift the backrest upwards and then fold
forwards into the seat. Adjust armrest width to accommodate if required.
2. To detach, unscrew the hand-wheel an additional three to four turns. Dot not loosen the cross-
headed screw.
3. Push the backrest slightly forward and lift upwards.
4. To re-locate the backrest assembly, ensure the pins are correctly aligned into the slots of the
mounting bracket, fully re-tighten the hand wheel on both sides.

Section Spectra Plus Tech Manual
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SEAT DEAPTH/BACK ANGLE ADJUSTMENT
SEAT DEPATH ADJUSTMENT (can be adjusted by 35 mm).
Tools required: 2 x 10mm spanners
1. unscrew and remove bolts and nuts (a) from the backrest mounting bracket
2. Move the backrest back to the extended position. Replace the bolts and nuts into the mounting
bracket and sideframe and tighten securely.
Seath Depth Adjustment
1. STANDARD
2. SINGLE SWAN – NECK
3. DOUBLE SWAN - NECK
OVERALL SEAT DEPATH ADJUSTMENT 350 mm to 535 mm =185mm
BACKREST ANGLE ADJUSTMENT (can be adjusted from 9odeg. Rearwards through 12deg.)
Tools required: 1x13mm Spanner, medium cross head screw driver.
1. Release lock nut (b) located on the cross-headed screw.
2. Screw the handwheel (c) partially out under normal hand pressure.
3. Screw the cross headed screw in or out to give the required back angle position. adjust the
position of the handwheel as necessary.
4. Position the locknut up to the mounting bracket and fully tighten
5. Re-adjust the handwheel (c) fully, ensuring the backrest assembly is secure.
NOTE: Each backrest tube must be positioned in the same plane as each other or the backrest will be twisted.