Sentria goes in reverse when pushed. Goes forward when pulled. What is the fix or adjustment?

I've had that exact issue with a Kirby Diamond Edition. What has happened is that the bracket inside the machine that activates the forward and back motion of the tech drive has come out of its slot. The only way to fix this is to disassemble the machine and put it back into place.

The transmission is shifted when the handle is pushed or pulled. This may come out of adjustment or be worn. It is also important to have a good belt on the brush roll as this aids in moving forward. The third problem may be worn wheels which also are necessary to make it drive properly. You need hands on to fix this. Take it to an expert in your area.

I saw videos it may be the transmission because it makes your kirby easy to push. It is working backwards so it may be the gears. This video will work for any Kirby that has TechDrive

You need to adjust the clamp on the cable to shift the clutch both forward and reverse.

your switch has worn out. you'll need to replace it cause it wont be long before it wont turn on at all.

this video will show you the fix

Jon,
Here is a helpful link to use to adjust the tranny. About a 7 on the difficulty level.

http://www.greatvacs.com/Kirby%20Transmission%20Adj.shtml

Marci

machine will not come on

If you have made no changes to the vacuum's setup and are using it on same carpet you have previously used it on with no problem, then the most likely cause is the agitator/beater bar's drive belt is worn or on some models may have a tension adjustment which is set too loosely. This can also be caused by having the vacuums height adjustment set to low for the carpet or flooring you are using it on, causing to much drag when the vacuum is pulled backwards for the agitator to overcome.

The vast majority of agitators turn in a forward direction, as if it would pull the vacuum forward, when you pull the vacuum backwards the drag is increased.

So...First check height adjustment (a no cost fix), then check out the tension adjustment (if present on you model, some engage when top of vacuum is tilted back after stepping on the release pedal) Lastly, consider changing belt especially if you have had the vacuum awhile or if it gets a fair amount of use or it you seem to need to use it on a low height setting all the time to vacuum up debris.

Hope this helps!

THe forward/reverse lever (made of plastic) possibly is broken. New part is about $10.00