20 Most Recent Invacare Supply Group Nutron R51 LXP Folding Power Wheelchair Questions & Answers


The age of the Nutron is not the issue, unfortunately. I have seen problems with this model right out of the box. The joystick control is the first area to check. If you have to compensate the joystick so far to the right to correct, you may have a damaged joystick gimbal. You may also have a bad joystick control board or damaged connecting cable to the controller on the bottom frame. Check for damaged, pinched loose or disconnected wiring below at the controller module. With a folding frame it is easy for the wiring to be become damaged or dislodged. Check for cut damaged pinched wiring at the joystick. With a handheld programmer (dealer) you can check for error codes in the fault log. With a poor performance issue there may not be a fault recorded in the log of the computer module. I have also seen these motors fail prematurely. In this case your left motor is dragging or weak causing the chair to go left. With a programmer (dealer tool) you can compensate for this while waiting for new parts(temp fix). Sometimes the motor brushes burn or hang up. Try blocking up the chair off the ground and run it no load to check for motor performance and unusual sounds. Check for joystick dead spots or uneven action. A quick check of the joystick would be to plug in a known good one at the dealer to test. With the chair blocked up try tapping the motor housing to see if the performance changes. Inspect the brushes if you have access to the brush caps.Check the obvious first, plugs, pinched, broken wires and partial plug disconnects and corrosion. If you have a voltmeter you can do some checks on the motors and brakes. Going from memory, the motor leads large black and large red should read zero ohms with the 2 small white wires for the brake reading between 60 and 70 ohms. Check the Invacare manufacturer website for exact specs and technical info for this model.
Hope this helps.

Invacare Supply... | Answered on Mar 23, 2014


Ok the heating up part means that there is something wrong with the power ciruit itself, chances are something is outputting more power than it should, disconnect the joystick box and see if the motors heat up, I'm betting it wont. The reason being that the joystick box has several switches in it, 1 or more of them is feeding power back to the ground which then transfers it to the motor causing cavitation in the motor circuit it self, e.g. Forward and backward at the same time, but since u push foward that gets more power so it moves or vice versa., Once you verify the above I dont think you need to replace the entire box, but clean the contacts or change the switches, only then change the box if the problem persist.

Now 1 symptom of the above is a reduction in power (the chair now isnt as fast as it should be)
Fixing the above will fix all on that. Please let me know after you have the shop check these things out.

Invacare Supply... | Answered on Nov 04, 2010


Hi flashing lights 8 times (Controller fault.). if the batteries haven't been used for several years U might have to replace them .U can buy a BATTERY LOAD TESTER OF E/BAY cost approx,$36..this will give U an accurate test on the condition of the batteries ,good luck
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Invacare Supply... | Answered on Nov 09, 2016


They are diagnostic codes to help troubleshoot a possible problem with your wheelchair. The lights blink in patterns. You have to count the number of blinks and what color they are.

Invacare Supply... | Answered on Jun 25, 2015


Sure. Just slower.
If you remove the motor from a power wheelchair to use in other applications keep this in mind; these motors are designed for PulseWidthModulation Speed Control (apx. 10kHz) with a feedback control to keep the speed more consistent. Feedback and pulsing is key to power and efficiency. If you run them at 12 volts without a pulse control the current to power output is much higher and the I*I*R (I squared times R) losses are higher - dissipated as heat. The motors will run very hot under a load with DC that isnt PWM'ed.
If the use/cool down duration is short you should not have issues.

Invacare Supply... | Answered on May 13, 2014


http://www.invacare.com/doc_files/1143190.pdf
Owners manual for TDX SP link above.

First check if you have power present at the charging port. If you have power (24 volts) then the batteries and wiring are not the issue. If you don't then check the battery post fuses. These are "L" shaped brackets with a white square fuse held on the positive post with a through bolt and nut. On older chairs these are known to become loose and or blow just when you need power or stop suddenly.
Also check the big Anderson connectors at the power point at the end of the battery box. Check for solid connections. If there is 24 volts here to the control box, next check the controller connector.
If there is +24 at the controller connector but 0 at the joystick charger port you have big issues. Either the traces connectors in the controller are fried or your joystick has major issues.

Invacare Supply... | Answered on May 13, 2014


Hi Mark.

Reversing the polarity:There are 3 wires on the Wig Wag Assembly. (reverse the wig-wag function) simply de-solder the 2 outer wires & swap their position & re-solder.I would seek a price for doing the job from an approved scooter repairer,unless you are comfortable doing the job yourself.I hope this has helped,Colin

Invacare Supply... | Answered on Dec 28, 2013


hi, from experience i recommend you use a semi fluid type grease

http://www.castrol.com/castrol/sectiongenericarticle.do?categoryId=82915557&contentId=7022530

From inspections , it's works best..... Oil will leak....

Regards

Invacare Supply... | Answered on Nov 19, 2013


theres a website called ask jeeves.com, go to it and ask question, wish i could help you.

Invacare Supply... | Answered on Sep 07, 2013


most manufacturers will NOT supply you with that, very difficult to get, FDA has strict guidelines on who can repair and maintain power chairs. what is the problem with the chair

Invacare Supply... | Answered on Sep 05, 2012

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