Question about Invacare HTR5500 Tilt & Recline Wheelchair

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The invacare tilt wheel chair will not stay in the upright position . It gradually lays back

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The release cable for the back is preventing the cylinder from locking. Adjust the cable just like you would adjust a bicycle hand brake. Adjust the cable so there is a quarter inch of play in the release lever. Look along the cable for a adjustment section.

Posted on Apr 30, 2011


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Have a Invacare Pronto m51 Sure step. Trying to change batteries and the seat seems to be stuck

Turn chair on its side. get spray pb blaster on it. set chair upright and wiggle seat back and forth to loosen. It takes work but after it is apart use grease on mating parts so they do not stick together anymore.

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How would tilting the chair cause it to stop operating?

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This should be visually diagnosed to get an accurate identification of the issue. That said, I would look to the tilt motor having broken teeth on the sprocket or a broken drive gear. Also the drive chain may be loose enough to allow it to slip on the sprocket. In most cases, the issue is with the tilt motor mechanism. Removing it will determine if an adjustment is all that you need or if it needs replacement.

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I have a jazzy 1107 power wheel chair the back wheels are leaned outward i dont think the back wheels should be leaned outward i think this is what is causing me not be able to be able to turn properly....

Have some one check out that the section has not become loose or broken. IF the wheel rubbers are damaged then you will have trouble regardless of what you do. I consider it paramount that the chair is in top condition for your needs. Have the manufacturer's service agent fix it for you.

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1 Answer

Invacare power chair model #1089384; is stuck in the reclining position and won't come back up

Hope you have had this fixed by now. But in case not and you are not able to use the chair.
If the chair still drives it's not batteries. The toggle switch box should be ok if there is no visable damage to it. Bad connections of the wiring from the toggle switch box to power or the recline or tilt motor should be inspected. A electronic tech is needed for most electronic failures.

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1 Answer

Can you bypass the tilt recline mercury switch on pronto m 91

The mercury switch for the TRSS (tilt recline single switch) is a mercury switch with a molex connector on the end. The switch opens and closes depending on the angle of the chair with mercury or a ball closing the contact.
Yes, you can bypass this switch, I do it all the time when it fails. Follow the wire from the black torpedo shaped switch. Unplug the switch at the white molex plug eliminating it from the circuit. Inspect where it was plugged into and observe the female contacts in the molex connector. Take a paper clip and bend it to shape inserting it in the two female contacts, shorting across them. This, in effect, acts like a closed switch. Tape up this connection with tape to hold the paper clip in the connector. Use the same tape to secure the connection to the chair.
When you replace the mercury switch the new ones that are available are the new ball switch type. The mercury has been removed due to environmental concerns. The angle of this switch when installed should provide drive lock out at the factory specification of 20 degrees tilt. Mark the position of the old switch and wiring before removal. It is usually easier to get to this switch by removing the chair seat pan first. Adjust the angle of the new switch (about $70) on installation. You may have to cycle the tilt up and down several times to accomplish this, testing for drive lockout at 20 degrees.
You can safely drive the chair until a new part is obtained but remember you are defeating the safety feature of the drive lock out in tilt by bypassing the switch. When you are tilted back too far you can tip over so exercise caution when going up ramps and inclines. Hope this helps.

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1 Answer

Changing the dual axle on an Invacare recliner to lower seat

You will need to remove the rear tires and front casters. If you look at the front caster fork there should be some extra holes where you can re-position the caster wheel. Likewise on the hole where the rear tires mounts there should be a hole above it where you can re-mount the tire. So just move the caster and wheel up to the next hole. If there are no holes to move up to then you cant lower the chair. The only other options would be to install a drop seat which you`ll have to purchase from a dealer or install smaller wheels and casters. So, for instance,say you have 8" casters and 24" wheels you would then install 6" casters and 22" wheels. Good Luck and let me know how it turns out.

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