Table of Contents
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Table of Contents
Related Manuals for Roma Medical Shoprider
Summary of Contents for Roma Medical Shoprider
- Page 1 Powerchair Service Manual...
- Page 2 Index 1. Safety advice. 2. Warranty Information. 3. Tools required. 4. Product identification. 5. Seat removal and adjustments. 6. Body panel removal. 7. Battery and battery charging information. 8. Battery removal and testing. 9. Brake removal and testing. 10. Motor brush removal and checks. 11.
- Page 3 1. Safety Advice Always observe a safe working practice. Powerchairs and their component parts such as batteries and sub- assemblies can be very heavy so care must be taken when lifting and carrying/moving. Always seek the assistance of a colleague or use suitable lifting equipment wherever possible.
- Page 4 Failure to register the fault may invalidate the warranty. Roma Medical warrants that if a fault occurs within this period due to faulty workmanship or materials that the product will be repaired (or replaced at the Company’s discretion) free of charge.
- Page 5 • Pliers (long nose and combination) • Tyre pump and pressure gauge • Tape measure and metal rule Recommended Stock Spares Roma Medical carries a comprehensive stock of spare parts it is recommended that certain parts should be to hand, these would include:- Motor Brushes...
- Page 6 SUL8 Venice S888WNLS Sena S888WNLM Malaga S888WNLL Lugano Please see image below for an example of the serial number label. Always refer to the serial number and product ID when ordering spare parts or contacting the Roma Medical technical staff.
- Page 7 5. Seat Removal NOTE: Always disconnect the joystick control before attempting to remove the seat. Failure to do so could damage the loom or controller. Before undertaking maintenance or repair work on the powerchair, you will have to remove the chassis cover, which will involve the removal of the seat.
- Page 9 6. Body Panel Removal It will be necessary to remove the chassis cover to gain access to the electrical connections, batteries and drive units of the powerchair. (except the UL7 Vienna model) Powerchairs generally have just one chassis cover which is secured with Velcro strips.
- Page 10 7. Battery And Battery Charging Information Each powerchair is fitted with two 12 volt sealed, maintenance free gel or AGM (absorbent glass mat) batteries*. These are connected in series to provide the 24-volt operating voltage. Batteries (if faulty) will normally fail within the first three months of use, after this period it is normally incorrect maintenance or charging procedure which will lead to failure.
- Page 11 8. Battery Removal and Fitting. Should a problem occur which would indicate a battery fault; each battery should be tested to find the faulty cell. Industry standard devices such as the Alpha Bat tester can be used to give a percentage of the battery’s true capacity rating.
- Page 12 Battery Fitting When delivered new (Malaga & Lugano) or fitting replacments, it is essential that the batteries are fitted correctly to avoid causing permanent damage to cables and electronics. Wires are colour coded and clearly identified for positive (+) and negative (-) polarities. Each powerchair will have a negative and positive battery cable.
- Page 13 9. Brake Removal And Testing Old Type New Type The electromagnetic brake is located on the end of the motor and can be removed by undoing the three screws. When 24v is applied, the brake will release allowing the powerchair to drive (this can be heard by an audible ‘click’).
- Page 14 10. Motor Brush Removal And Checks Each motor has a pair of carbon brushes. Depending on the model, the brushes will be accessible by removing brush caps (Type 1) or by removing the brake from the motor and removing the back plate from within the motor (Type 2).
- Page 15 11. Transaxle Assembly The transaxle / drivetrain consists of three main components which are the brake, motor and gearbox. These are connected in the order as shown in the diagram below. There are a further two components which are located between the interfaces of the three main components to ensure functionality of the full assembly.
- Page 16 12. Wheels & Tyres The smaller powerchairs will be fitted with one-piece plastic rims and solid tyres, the larger powerchairs have split aluminium rims and either pneumatic or infill tyres. Whenever replacing tyres or inner tubes it is essential that the tyres are completely deflated before attempting any replacement.
- Page 17 13. General Checks And Tips Examine the motor, microswitch indicate freewheel engagement, check the operation of the switch using continuity mode on a multimeter. If the switch does open or close in either lever position replace the switch. Checklist The most common problem with the powerchairs is in the BATTERIES.
- Page 18 Intermittent problems are usually caused by faulty wiring. Check all connections and run a continuity test on the wiring looms. If, after thoroughly troubleshooting the powerchair, you have any Shoprider further questions, please call the service department and we will be glad to assist you.
- Page 19 Do not use joysticks from different models to affect a permanent repair, as each joystick is programmed to the specific model it is used on. Roma Medical does not repair joysticks. For repair contact the manufacturers’ customer services department directly. PG Drives Technology...
- Page 20 Continued… There are two main types of joystick controls used, these are the Penny & Giles ‘VSI’ type and the Controls Dynamic ‘DL’ type. The controllers have the ability to determine errors and faults on the powerchair. These are displayed on the battery gauge (part A in the images).
- Page 21 Continued… Dynamic DL Controller Flash Fault Type Suggested Actions Code Battery Voltage Check battery voltage is above 17v. Fault Check battery connections and terminals. Check condition of batteries. High Voltage Fault Check battery voltage is below 32v. Check battery wiring and terminating is secure.
- Page 22 Continued… VSI Run Timer The VSI joystick has an in-built timing function which measures the actual run time of the powerchair. The time is the actual running time and NOT the time that the unit has been switched on. To access the information you will require a PP1 (image below) hand held programmer (available from PG Drives Technology).
- Page 23 15. Annual Inspection Checks As part of the powerchair’s annual inspection, the following checks should be undertaken to ensure safe and reliable operation. Drive System Ensure the powerchair runs in a straight line and does not veer to one side during driving. Should it veer to one side, check tyre pressures where pneumatic tyres are fitted.
- Page 24 Continued… Frame / Chassis Inspection Check all areas for deformation or cracked welds, paying particular attention to areas of greatest stress such as seat post brackets, castor mounts and axle pivot points, gearbox/drive train mounting points, armrest and footrest brackets and areas where the chassis can be split for transportation (where applicable).
- Page 25 Continued… Upholstery Check for any tears, rips, general thinning of padding and any areas where the seat frame may have protruded through the upholstery. Pay particular attention to areas which contact the user, as continued use of a worn seat or backrests which offer little pressure relief could lead to pressure sores with a full time user.
- Page 26 Continued… Anti-tip castors should be checked for integrity to ensure smooth operation. Check the wheels freely spin and are free from debris and the bolt threads are fully secure in the nyloc nut (parts A). Where a lap belt is fitted, check the mounting points to ensure the bolts / handknob ‘A’...
- Page 27 –ve on the other battery). Begin the charge cycle and take another reading after approximately 15 minutes. This reading should be approximately 26/27 volts. This reading can rise to over 28 volts. Should this not occur, check looms for continuity and try another Shoprider charger of an equivalent output.
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