20 Most Recent Invacare Pronto M51 Power Wheelchair Questions & Answers


The M51 does not have a stability locking kit. The Invacare TDX SP has a gas strut stability locking kit that just had an extensive recall campaign associated with it. Please describe your issue in greater detail.

Invacare Pronto... | Answered on Dec 10, 2017


Turn on chair, move joystick forward till it beeps, then all the way back till it beeps, and then let go of joystick, it should fire up.

Invacare Pronto... | Answered on Oct 11, 2017


use locktite on the threads

Invacare Pronto... | Answered on Apr 16, 2017


Take the motor connection and interchange the right motor with the left one. if the problem moves to the right motor then it is the motor or its wiring. If it does not move when changing the the connections then it is a problem in the controller. hope this helps.

Invacare Pronto... | Answered on Sep 04, 2016


Most likely you need new batteries. On the M51 powerchair the batteries are located in the center under the seat. Step 1 - remove the seat by pulling up on the swivel handle while lifting straight up, the seat weighs about 50 lbs. After removing the seat remove the center plastic cover by liting it off.
If you have an older model M51 the batteries will each have their own cover - to replace the batteries you will see several connectors that must be unplugged. The front and rear batteries each have different connectors so keep them separate. Lift out the batteries and follow the wiring for each replace the batteries. You will need 2 U1 batteries, available at sears or your local maedical equipment supply store ( Interstate has them too) Simply reverse the removal procedure to replace the batteries making sure you follow all the connections. - good luck
Tom

Invacare Pronto... | Answered on Aug 26, 2016


You will need to contact a service tech in your area to do this. They should have a special programmer box that can adjust the settings on the chair to improve the chairs performance.

Invacare Pronto... | Answered on Jun 19, 2016


The drive wheel has a locking tab washer under the bolt which holds the wheel assembly on the end of the drive shaft. Step one is to bend the tab (or tabs) away from the side of the bolt. Put a socket on the bolt to remove it. Make note of the washer and lock tab orientation because there is another tab on the inside which locks into the motor shaft keyway. Spray lube into the shaft and keyway to free up the wheel and remove. A wheel puller is sometimes helpful here. When replacing the parts use Loctite on the bolt and tighten. The final step is to bend a lock tab up against the bolt head to keep it from backing out. The hard part of this whole process is removing the wheel assembly from the motor shaft. It may have seized on to the shaft. Place anti-seize or grease on the shaft after cleaning and before reassembly.
invacare com

Invacare Pronto... | Answered on Jun 10, 2016


David,
have someone check the freewheel handles are in drive position, then unplug charger.

Invacare Pronto... | Answered on May 15, 2016


Contact Invacare/Dealer for service.

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Invacare Pronto... | Answered on Mar 27, 2016


Your manual is here. The section on charging states, that green blinking means your battery is fully charged but blinking red means that your charger is faulty. I would say repairable.

1. Plug the female connector of the AC power cord (supplied) to the AC receptacle on the charger and plug in the male connector on the AC power cord into the wall outlet.

2. The On/Off LED indicator is blinking RED, this is abnormal. Unplug AC power cord from the on-board battery charger and wall outlet. Charger may need to be replaced. Contact an Invacare dealer or qualified technician.

3. When the On/Off LED indicator light is Off, charger is Off.

4. When the Charge LED indicator light is YELLOW, the batteries are charging.

5. When the Charge LED indicator light is solid GREEN, the batteries are fully charged (as their condition will allow).

6. When charging is complete, unplug the male connector of the AC power cord from the wall outlet and then unplug the female connector of the AC power cord from the AC receptacle on the charger.


http://www.invacare.com/doc_files/1125085.pdf

http://www.invacare.com/doc_files/1125085.pdf

Invacare Pronto... | Answered on Mar 26, 2016


The m51 is notorious for failure of the on-board charger. An easy check would be to plug an off board charger into the 3 prong female charging receptacle at the front of the joystick to see if you can bring the voltage up. You can test the on board charger with a voltmeter at the battery connections or charger joystick port with the charger plugged in. Hope this helps

Invacare Pronto... | Answered on Feb 01, 2016


The M51 could have the motor clutch levers in the free wheel/push mode and the joystick will not blink if this is the case. Make sure that the chair cannot be pushed. If it can be pushed it means it is in free wheel and you need to lock the motors in gear.

If it is in gear and the joysticks green light does not change color or blink it could be that the joystick is bad. When nothing happens and the lights don't blink when you push the joystick knob the chairs controller basically isn't recognizing the joystick movement.
Time to have the joystick repaired or more. Have a technician look at it.

Invacare Pronto... | Answered on Jan 08, 2016


needs serviced is usually what that means

Invacare Pronto... | Answered on Nov 30, 2015


I suspect you are having a wheel problem, in other words, one of your wheels has stopped working right, Raise each wheel off the ground and turn them by hand to see which is bad. If it is a drive wheel, raise each one and try it with the motor. The bad one should show up. God bless your efforts.

Invacare Pronto... | Answered on Nov 25, 2015


The diagnostic code would indicate a bad control box. It could also be too low a voltage from the batteries or a bad or broken wire or connector between the joystick and the control box. Chair will need a technician from a good dealer to help out if battery's and wiring are good.

Invacare Pronto... | Answered on Oct 29, 2015

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