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It is important that anyone who performs maintenance and repairs described in this manual reads and understands the content of this manual so that the work is performed professionally. Always state the chassis number when contacting Permobil to ensure that the correct information is provided.
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Text Produced and published by Permobil AB Edition: Edition 2, 2015-09 Order no: 205214-UK-0...
Permobil X850 Repairs Covers Removing the chassis covers 1. Chassis with electric seat lift: Place the wheelchair on a level surface. Raise the seat to the highest posi- tion. If the seat lift does not work normally because the batteries are discharged or the motor is defective, see Manual raising/lowering, Page 31.
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Permobil X850 Repairs Removing the footplate The foot plate is fitted with ten screws, three on the right and left sides and four on the top of the foot plate. See fig. 6. 1. Unscrew and remove the ten screws that hold the foot plate in place.
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Permobil X850 Repairs Removing the front mudguard The front mudguards are held in place with four screws each. 1. Unscrew and remove the four screws that hold the front mudguard in place. See fig. 7. 2. Lift the mudguard up.
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Permobil X850 Repairs Removing the crush protection The crush protection is held in place with two screws. 1. Place the wheelchair on a level surface. Raise the seat to the highest position. If the seat lift does not work normally because the batteries are discharged or the motor is defective, see Manual raising/lower- ing, Page 31.
Permobil X850 Repairs Batteries WARNING! Be careful when using metal objects when working with batteries. A short-circuit can easily cause an explosion. Always use safety gloves and safety goggles. Removal 1. Place the wheelchair on a level surface. 2. Switch off the power supply using the ON/OFF key on the control panel and switch the automatic main fuse to Off.
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Permobil X850 Repairs Assembly 1. Lift two new batteries into place. The battery poles must face out from the centre of the chassis. WARNING! Be careful when using metal objects when working with batteries. A short-circuit can easily cause an explosion.
Permobil X850 Repairs Drive wheels Removal 1. Switch off the power supply with the On/Off key on the control panel. 2. Lift up and chock up the wheelchair chassis so that the wheel in question is free of the ground.
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Permobil X850 Repairs Assembly 1. Check that the axle and rim are not damaged. If nec- essary, clean to remove dirt and rust. Replace dam- aged parts. 2. Check that the parallel key is properly located and is not damaged. Fit a new parallel key if necessary.
Permobil X850 Repairs Front wheels Removal 1. Switch off the power supply with the On/Off key on the control panel. 2. Lift up and chock up the wheelchair chassis so that the wheel in question is free of the ground.
Permobil X850 Repairs Inner tube Replacement 1. Switch off the power supply with the On/Off key on the control panel. 2. Lift up and chock up the wheelchair chassis so that the wheel in question is free of the ground.
Permobil X850 Repairs Filling tyres with air Tyre pressure Check at regular intervals that the wheelchair’s tyres have the correct tyre pressure. The incorrect tyre pres- sure may mean lower stability and manoeuvrability and result in abnormal wear and shorter range. Therefore, check regularly that the tyre pressure is 200-250 kPa (2- 2.5 bar).
Permobil X850 Repairs Shock absorbers Removal 1. Switch off the power supply with the On/Off key on the control panel. 2. Lift up and chock up the wheelchair chassis so that the wheel in question is free of the ground.
Permobil X850 Repairs Brake release cables Removal 1. Place the wheelchair on a level surface. If the chassis has an electric seat lift, raise the seat to the highest position. If the seat lift does not work normally be- cause the batteries are discharged or the motor is de- fective, see page 22.
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Permobil X850 Repairs Assembly 1. First fit the cable at the release lever, then at the mag- netic brake. 2. Adjust the cable sleeve length with the adjusting screw (2) so that the cable is tensioned so that the brake release switch is activated immediately before the cable pulls the release shackle.
Permobil X850 Repairs Brake release switch Removal 1. Remove the chassis covers. See page 7. 2. Switch the main fuse to OFF. See page 36. 3. Remove the brake release mechanism. It is held in place with two screws. See the illustration.
Permobil X850 Repairs Magnetic brake Removal 1. Place the wheelchair on a level surface. If the chassis has an electric seat lift, raise the seat to the highest position. If the seat lift does not work normally be- cause the batteries are discharged or the motor is de- fective, see page 22.
Permobil X850 Repairs Drive motor Removal 1. Place the wheelchair on a level surface. If the chassis has an electric seat lift, raise the seat to the highest position. If the seat lift does not work normally be- cause the batteries are discharged or the motor is de- fective, see page 22.
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Permobil X850 Repairs CAUTION! The wheelchair must not be lifted by the seat or seat lift as this can damage the wheelchair and its components. 5. Remove the rear wheel on the relevant side. See page 12. 6. Remove the electrical connection of the magnetic brake from the connection box.
Permobil X850 Repairs Fixed seat Folding the seat To be able to remove the chassis covers on a chassis with a fixed seat, the seat’s rear mounting must be re- moved so that the seat can be folded forwards. 1. Remove the rear chassis cover. See page 7.
Permobil X850 Repairs Electric seat lift Manual raising/lowering If the seat lift does not work normally because the bat- teries are discharged or the motor is defective, the seat can be raised/lowered manually. 1. Switch off the power supply with the On/Off key on the control panel.
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Permobil X850 Repairs Removal 1. Place the wheelchair on a level surface. Raise the seat to the highest position. If the seat lift does not work normally because the batteries are discharged or the motor is defective, see page 22.
Permobil X850 Repairs Seat lift motor Removal 1. Place the wheelchair on a level surface. Raise the seat to the highest position. If the seat lift does not work normally because the batteries are discharged or the motor is defective, see page 22.
Permobil X850 Repairs Electric wheelbase adjustment Removal 1. Place the wheelchair on a level surface. If the chassis has an electric seat lift, raise the seat to the highest position. If the seat lift does not work normally be- cause the batteries are discharged or the motor is de- fective, see page 22.
Permobil X850 Repairs Front Removal 1. Switch off the power supply using the ON/OFF key on the control panel and switch the automatic main fuse to Off. It is accessible via a recess on the chassis. See page 36. 2. Remove the foot plate. See page 8.
Permobil X850 Repairs Steering knuckle suspension and bearings Removal WARNING! The wheelchair must not be lifted by the seat or seat lift as this can damage the wheelchair and its components. 1. Switch off the power supply with the On/Off key on the control panel.
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Permobil X850 Repairs Turn the steering knuckle around. Press out the spring using a screwdriver. Figure 52. Steering knuckle. NOTE! Be very careful when removing the spring so that the two O-rings and the sliding bushing are not damaged. 10. Replace the ball bearing, sliding bushing and knuckle spring as required.
Permobil X850 Repairs Potentiometer Removal 1. Switch off the main power switch on the control panel. 2. Remove the foot plate. See page 8. 3. Remove the potentiometer’s cover plate. See the illustration. 4. Cut off the cable tie that holds the potentiometer’s ca- bling in place.
Permobil X850 Repairs Power steering actuator Removal 1. Switch off the main power switch on the control panel. 2. Remove the foot plate. See page 8. 3. Divide the actuator’s cabling at the contacts on the cabling. 4. Remove the locking nut on the actuator’s front mount- ing.
Permobil X850 Repairs Toe-in check Ensure that the steering is adjusted so it is straight forwards. The distance between the centre line of the front tyres must be 2-4 mm less on the front of the tyres than on the rear.
Permobil X850 Repairs Toe-in adjustment 1. Ensure that the steering is adjusted so it is straight forwards. 2. Switch off the power supply with the On/Off key on the control panel. 3. Remove the foot plate. See page 8. 4. Remove the locking nuts on the steering connecting rods’ mountings. See the illustration.
Press in new bushings. Press the inner bushing in to the edge of the recess for the stop lug. The outer bushing should be level with the front edge of the tube. See the illustration. Use Permobil’s special tool (Art. no.: INR8205) or fit the bushings in some other way.
Permobil X850 Repairs Bushing and plastic guide Replacement 1. Switch off the power supply using the ON/OFF key on the control panel and switch the automatic main fuse to Off. It is accessible via a recess on the chassis. See the illustration.
Permobil X850 Repairs Electronics (Safe Gate) Removal 1. Place the wheelchair on a level surface. If the chassis has an electric seat lift, raise the seat to the highest position. If the seat lift does not work normally be- cause the batteries are discharged or the motor is de- fective, see page 22.
Permobil X850 Repairs Connection box Removal 1. Place the wheelchair on a level surface. If the chassis has an electric seat lift, raise the seat to the highest position. If the seat lift does not work normally be- cause the batteries are discharged or the motor is de- fective, see page 22.
Permobil X850 Repairs Fuses Resetting the main fuse The main fuse also functions as a battery isolator but it is usually called the main fuse. It is not normally necessary to replace the main fuse as it is automatic and can be reset when it has been triggered.
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Permobil X850 Repairs Replacing the Main Fuse 1. Place the wheelchair on a level surface. If the chassis has an electric seat lift, raise the seat to the highest position. If the seat lift does not work normally be- cause the batteries are discharged or the motor is de- fective, see page 22.
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Permobil X850 Repairs Replacing fuses for charging, actuator, lights/indicators Fuses for the actuator (15 A) and lights/indicators (7.5 A) are located at the lower edge of the rear of the wheelchair (connection box). The charging fuse (20 A) is located between the right drive motor and the chassis. All these fuses are accessible from the rear of the wheelchair.
Permobil X850 Repairs Front lights Changing a bulb 1. Switch off the power supply with the On/Off key on the control panel. 2. Remove the ring that surrounds the light by carefully levering with a screwdriver between the ring and the light housing.
Permobil X850 Repairs Front indicators Removal 1. Switch off the power supply with the On/Off key on the control panel. 2. Remove the foot plate. See page 8. 3. Divide the indicator light’s cabling at the contact on the cabling. This is located on the inside of the foot plate.
Permobil X850 Repairs Rear lights/indicators Removal 1. Switch off the power supply with the On/Off key on the control panel. 2. Remove the rear chassis cover. See page 7. 3. Divide the light’s cabling at the contact on the cabling.
Permobil X850 Adjustments Manual wheelbase adjustment Adjustment On delivery, the wheelchair is always transported ad- justed to the minimum length. When it has been un- packed, it must be adjusted to the correct length. The length is adjusted using the adjusting rod at the rear.
The following troubleshooting guide describes a number of faults and events which may occur when you use your wheelchair, together with suggested remedies. Note that this guide cannot describe all the problems and events which may occur and you should always contact your service contact or Permobil in case of doubt. EVENT...