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  • #16
    no arm rests for me either . . .
    Chas
    TiLite TR3
    Dual-Axle TR3 with RioMobility DragonFly
    I am a person with mild/moderate hexaparesis (impaired movement in 4 limbs, head, & torso) caused by RRMS w/TM C7&T7 incomplete.

    "I know you think you understand what you thought I said, but what I don't think you realize is that what you heard is not what I meant."
    <
    UNKNOWN AUTHOR>

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    • #17
      Issue with the camber tube on my new ZRA

      Hello All,
      I am coming up on two weeks of ownership of my brand spanking new ZRA and I seem to have any issue. Last weekend I wanted to put on my new Spinergy Carbon Blades and once I did so when I was wheeling around the house the tires were squeaking like crazy on the hard wood floor. At first I figured that it was because the tires were brand spanking new. I put a number of miles on the chair over the next couple days and they were still squeaking so I got out of the chair to put the Shadows back on and that is when I saw the "Made in the USA" sticker was almost pointing straight up. When I first got the chair my wife commented on the sticker so I asked her if it was in the same position as it was when I first got the chair and she said "not at all". I asked her to grab my allen keys and I measured the toe and got it back to where it should be and the squeaking went away Since getting the chair I have found a couple fasteners which were started but not tightened, Thanks Numotion, so I figured this was what happened here even though the fasteners were fairly tight. Fast forward to Saturday and I was out of the chair and giving it a once over and again I see the sticker has "moved" again but not as much as the first time. I adjust it again and made sure the fasteners were tight. Yesterday morning my wife and I went for pretty decent walk/roll (1.5 miles) and while I was out of the chair yesterday evening and I am pretty sure the camber tube has moved again, this evening I will check it again and put an indexing mark on it to confirm. I am pretty darn mechanically inclined and feel like I put enough torque into the fasteners but with that said something is going on here.

      Have any of you guys experienced this? What did you do to solve the issue. To me it would seem like the two clamps that hold the camber tube have a decent amount surface area to "grip" the tube and it would not seem like there is a lot of forces to rotate the tube but the tube is moving.

      Cheers,
      Jim

      Comment


      • #18
        Originally posted by Crappler View Post
        No to arm rests, no to anti-tip bars, no to push handles and no to side guards. IMO.
        I agree with the first three, but side guards are indispensable when you have a well fit chair if you wear anything other than spandex.

        I'm sure a few physical therapists would cringe to hear me say it, but if I removed my side guards my hips would be touching the wheels, and I'd have to go with a wider chair just to keep from shearing off the sides of my pants with the friction. Add to that the fact that shirts and jackets can be tucked between hip and side guard to avoid getting dirtied by the spinning wheels and the constant contact of my hips with the side guards allows a much more responsive feel to the ride and a more secure seated position (not moving left and right at all), and I don't know how anyone can get by without them on a chair that actually fits well. But to each his own I guess.


        But back to the main topic, armrests are more trouble than they're worth for a para.

        Comment


        • #19
          Originally posted by LJH View Post
          Hello All,
          I am coming up on two weeks of ownership of my brand spanking new ZRA and I seem to have any issue. Last weekend I wanted to put on my new Spinergy Carbon Blades and once I did so when I was wheeling around the house the tires were squeaking like crazy on the hard wood floor. At first I figured that it was because the tires were brand spanking new. I put a number of miles on the chair over the next couple days and they were still squeaking so I got out of the chair to put the Shadows back on and that is when I saw the "Made in the USA" sticker was almost pointing straight up. When I first got the chair my wife commented on the sticker so I asked her if it was in the same position as it was when I first got the chair and she said "not at all". I asked her to grab my allen keys and I measured the toe and got it back to where it should be and the squeaking went away Since getting the chair I have found a couple fasteners which were started but not tightened, Thanks Numotion, so I figured this was what happened here even though the fasteners were fairly tight. Fast forward to Saturday and I was out of the chair and giving it a once over and again I see the sticker has "moved" again but not as much as the first time. I adjust it again and made sure the fasteners were tight. Yesterday morning my wife and I went for pretty decent walk/roll (1.5 miles) and while I was out of the chair yesterday evening and I am pretty sure the camber tube has moved again, this evening I will check it again and put an indexing mark on it to confirm. I am pretty darn mechanically inclined and feel like I put enough torque into the fasteners but with that said something is going on here.

          Have any of you guys experienced this? What did you do to solve the issue. To me it would seem like the two clamps that hold the camber tube have a decent amount surface area to "grip" the tube and it would not seem like there is a lot of forces to rotate the tube but the tube is moving.

          Cheers,
          Jim
          You're right, the camber tube shouldn't be moving. I've never had that problem. I have, however, had the fixed elite brackets that hold my ADI carbon back on, move down the posts regardless of how tight the screws are. These particular screws (allen) are really soft metal, so I have stripped them out a few times. I understand yours seem like they aren't tight enough on your camber tube, but be careful not to over tighten them either. If you ever have an allen bolt strip on you, you can hammer a slightly larger torx bit in there to get it to back out.

          Comment


          • #20
            Do your rear wheels spin easily when the tires are raised up off the floor? If not, there might be friction of the hub against the face of the camber nut and rotating the tube. If that is happening, the sticker would rotate to the top. The fix would be to take off the wheel, and adjust the distance between the detent ball in the axle and the adjusting nut by turning the nut counterclockwise half a turn or so.

            The other suggestion would be to loosen up
            the clamps and put some locktite or a thin piece of plastic between the clamp and the tube.
            Don - Grad Student Emeritus
            T3 ASIA A 26 years post injury

            Comment


            • #21
              Originally posted by LJH View Post
              Hello All,
              I am coming up on two weeks of ownership of my brand spanking new ZRA and I seem to have any issue. Last weekend I wanted to put on my new Spinergy Carbon Blades and once I did so when I was wheeling around the house the tires were squeaking like crazy on the hard wood floor. At first I figured that it was because the tires were brand spanking new. I put a number of miles on the chair over the next couple days and they were still squeaking so I got out of the chair to put the Shadows back on and that is when I saw the "Made in the USA" sticker was almost pointing straight up. When I first got the chair my wife commented on the sticker so I asked her if it was in the same position as it was when I first got the chair and she said "not at all". I asked her to grab my allen keys and I measured the toe and got it back to where it should be and the squeaking went away Since getting the chair I have found a couple fasteners which were started but not tightened, Thanks Numotion, so I figured this was what happened here even though the fasteners were fairly tight. Fast forward to Saturday and I was out of the chair and giving it a once over and again I see the sticker has "moved" again but not as much as the first time. I adjust it again and made sure the fasteners were tight. Yesterday morning my wife and I went for pretty decent walk/roll (1.5 miles) and while I was out of the chair yesterday evening and I am pretty sure the camber tube has moved again, this evening I will check it again and put an indexing mark on it to confirm. I am pretty darn mechanically inclined and feel like I put enough torque into the fasteners but with that said something is going on here.

              Have any of you guys experienced this? What did you do to solve the issue. To me it would seem like the two clamps that hold the camber tube have a decent amount surface area to "grip" the tube and it would not seem like there is a lot of forces to rotate the tube but the tube is moving.

              Cheers,
              Jim

              The manyal doesnt give torque specs for those fasteners, but, if your wheels spin freely, then it they must not be tight enough. Are they loose when you check them after the tube has rotated? Worse case something (male or female threads...most likely the aluminum female side) may be stripping. Easy case is bearings in hubs are shot and torque-ing the tube. Best case they just aren't tight enough. I use a dab of medium thread locker on all my hardware.
              "I have great faith in fools; self-confidence my friends call it." - Edgar Allen Poe

              "If you only know your side of an issue, you know nothing." -John Stuart Mill, On Liberty

              Comment


              • #22
                Originally posted by LJH View Post
                Hello All,
                I am coming up on two weeks of ownership of my brand spanking new ZRA and I seem to have any issue. Last weekend I wanted to put on my new Spinergy Carbon Blades and once I did so when I was wheeling around the house the tires were squeaking like crazy on the hard wood floor. At first I figured that it was because the tires were brand spanking new. I put a number of miles on the chair over the next couple days and they were still squeaking so I got out of the chair to put the Shadows back on and that is when I saw the "Made in the USA" sticker was almost pointing straight up. When I first got the chair my wife commented on the sticker so I asked her if it was in the same position as it was when I first got the chair and she said "not at all". I asked her to grab my allen keys and I measured the toe and got it back to where it should be and the squeaking went away Since getting the chair I have found a couple fasteners which were started but not tightened, Thanks Numotion, so I figured this was what happened here even though the fasteners were fairly tight. Fast forward to Saturday and I was out of the chair and giving it a once over and again I see the sticker has "moved" again but not as much as the first time. I adjust it again and made sure the fasteners were tight. Yesterday morning my wife and I went for pretty decent walk/roll (1.5 miles) and while I was out of the chair yesterday evening and I am pretty sure the camber tube has moved again, this evening I will check it again and put an indexing mark on it to confirm. I am pretty darn mechanically inclined and feel like I put enough torque into the fasteners but with that said something is going on here.

                Have any of you guys experienced this? What did you do to solve the issue. To me it would seem like the two clamps that hold the camber tube have a decent amount surface area to "grip" the tube and it would not seem like there is a lot of forces to rotate the tube but the tube is moving.

                Cheers,
                Jim
                If your axle tube is rotating and you don't dare tighten the hex screws more...stop. Contact the DME. Something is wrong. Make them fix it before they say you damaged the chair.
                I have had periodic paralysis all my life. I lost my ability to walk in 2011 beginning with a spinal block, which was used for a hip fracture caused by periodic paralysis.

                Comment


                • #23
                  Hello All,
                  Yes, the wheels spin freely so that is not an issue. The fasteners are also tight after I noticed the camber tube has moved. This is all very strange as there is a pretty big clamping surface. I have also tried as hard as I can to turn the camber tube by hand while the fasteners are tightened and no go so this makes me wonder if it has something to do with going over bumps.

                  I have played with everything from full scale cars to tiny radio controlled stuff and am aware that you have to be careful with fasteners tapped into aluminum. While I have not pulled the fasteners out yet once they are loose the threads feel fine. Looking at the camber tube again this morning it looks like it has moved again. Tonight when I look at it I will pull the fasteners completely out to see if there is an indication of thread damage as well as mark the clamp and tube to make sure it is moving. I also want to measure the depth of the threads and compare them to the fasteners to make sure they are not bottoming out.

                  I talked to Tilite yesterday and they were not helpful at all. I also have someone coming from Numotion to take a look at it next week though I am not sure I trust them given the number of loose fasteners I have found from the build of my chair.

                  Cheers,
                  Jim

                  Comment


                  • #24
                    Check the interfaces of the clamps. If they close completely, no amount of tightening will help.
                    If they are two piece clamps, take them off and file off enough material to leave an opening when tightened (you could also use coarse sandpaper on something flat and stroke the part on it)
                    If there's only a single slot, you could use a piece of (stiff) belt sander paper to thin it, or a shim (piece of thin aluminum flashing?) between the clamp and the axle. To do this, you might need to spread it slightly (to get the shim in) by hammering a thin screwdriver blade or scraper into the split until the shim is installed.
                    If this scenario is correct, Numotion should quickly warrantee it!
                    69yo male T12 complete since 1995
                    NW NJ

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