Sonic Tension Question.

[Jeriatric]

That is showing the original recommended spec, needed the new recommneded bulletin tension spec . This would be for the 2014 Models on up. (1050N plus or minus is the book spec. )

Thanks! :thumbup:

It's an ever changing world. Time to update my notes.

 

[h0gr1der]

That is showing the original recommended spec, needed the new recommneded bulletin tension spec . This would be for the 2014 Models on up. (1050N plus or minus is the book spec. )

Trikermutha,

My service manuals (2018 & 2019 RT) are both broken up into 2 sections. In the front under the drive section it has the old 1050 N ±150 spec. Apparently this is the one the dealers use.

Farther in the back under the Technical Specifications- Vehicle section, the drive section lists a lower specification of 775N ± 150N. That puts my minimum tension at 141 Lbs by the new manuals. If you reference the old 2015 TSB you can go all the way down to 119 Lbs. I'm at 150 lbs on the ground, and quite happy with that.

This is from my 2019 manual;

 

[trikermutha]

Thanks! :thumbup:

It's an ever changing world. Time to update my notes.

No Problem I know I saved it someplace myself but can not find it..

 

[trikermutha]

Trikermutha,

My service manuals (2018 & 2019 RT) are both broken up into 2 sections. In the front under the drive section it has the old 1050 N ±150 spec. Apparently this is the one the dealers use.

Farther in the back under the Technical Specifications- Vehicle section, the drive section lists a lower specification of 775N ± 150N. That puts my minimum tension at 141 Lbs by the new manuals. If you reference the old 2015 TSB you can go all the way down to 119 Lbs. I'm at 150 lbs on the ground, and quite happy with that.

This is from my 2019 manual;
View attachment 174602

THanks

I know I set mine around the 850N range, now I know it can be lower than that if needed. Also once on the ground that doubles your original numbers :yikes: Tested mine while off the ground and on the ground.

 

[h0gr1der]

THanks

I know I set mine around the 850N range, now I know it can be lower than that if needed. Also once on the ground that doubles your original numbers :yikes: Tested mine while off the ground and on the ground.

Mr. Trikermutha,

Mine didn't anywhere near double, but I only measured at the low end of the scale. I set mine at 110 in the air, with the wheel off the ground and belt dampener off the belt. Gain about 10 Lbs when the belt dampener is on the belt, wheel off the ground, so up to around 120 lbs. On the ground tension increased to between 140-150 Lbs. That's where I run mine. It's smooth for me.

 

[trikermutha]

Mr. Trikermutha,

Mine didn't anywhere near double, but I only measured at the low end of the scale. I set mine at 110 in the air, with the wheel off the ground and belt dampener off the belt. Gain about 10 Lbs when the belt dampener is on the belt, wheel off the ground, so up to around 120 lbs. On the ground tension increased to between 140-150 Lbs. That's where I run mine. It's smooth for me.

Guess I will have to recheck my settings then :thumbup:

 

[Doc - Riverside]

All,

Just got my machine (2018 RTL) out of warranty limbo, checked it over before riding home and wouldn't you know it, the belt is too tight and vibrating. Even with the dampener on the belt.

Looking through the paperwork on the 3000 mile service, the tech acknowledged everything I asked them to do. I run the axle torque at 25% less due to lubricant on the threads, don't fold my split pin over, just slightly spread it, etc.

In reporting the belt request, I had asked them to skip the belt unless they couldn't. Paperwork said belt far outside of spec, set to minimum spec as per customer. They then reported the spec as 950 Hz.

For those of you that use sonic testers, is this a typo? Did they mean 950 Newtons? I saw ± 200 Lbs on the Krikit II, and 950 Newtons is 213.5 Lbs. converted.

I suspect 950 Hz would be somewhat high.

The number 950hz would equate to 776,619.3 newtons belt tension so the number on your paperwork has to be newtons. Apple devices has proven to work well with the Gated App. Android products didn't give consistent results because of the lower quality electronics. See this link I did in 2014.

https://www.spyderlovers.com/forums...lt-tension-APP-for-Iphone-Ipad-and-Ipod-touch

 

[h0gr1der]

The number 950hz would equate to 776,619.3 newtons belt tension so the number on your paperwork has to be newtons. Apple devices has proven to work well with the Gated App. Android products didn't give consistent results because of the lower quality electronics. See this link I did in 2014.

https://www.spyderlovers.com/forums...lt-tension-APP-for-Iphone-Ipad-and-Ipod-touch

Mr. Doc,

I cobbled up a spreadsheet in MS Excel that solves for Newtons using Hertz. Any audio measuring device should work, but some of the numbers I'm hearing from folks doing this are questionable. I tried one of those apps on my Android and didn't find it repeatable. I'll stick with my tried and true Krikit II. Either way, the dealer over-tightened my belt. I sent the service manager some feedback, with both the positive comments and some constructive criticism, if they're smart enough to actually study the problem and use it.

 

[RudyB]

I couldn’t find this app for I-Phone

 

[Jeriatric]

I couldn’t find this app for I-Phone

https://www.gatescarbondrive.com/products/tools

 

[RudyB]

They meant Newton’s just got a new belt it was adjusted to minimum specs which is 1000 Newton’s and I now have no belt vibration

 

[OrangeBlossomSpecial]

Check this Youtube out...
https://youtu.be/pWGiCt7aW6s

 

[h0gr1der]

Check this Youtube out...
https://youtu.be/pWGiCt7aW6s

The guy in the video seems to be crossed up about the Krikit II. It's range is 300 Lbs of force, if it is out of range then his belt is waaaaay too tight. I double checked my belt against the 950N the dealer left it at, and my Krikit II showed around the ± 200 lbs range, the 950N converts out to about 213 Lbs.

He also fell into the trap my dealership (as most dealerships do) of not being aware that the 2015 TSB allows RT riders to set the tension all the way down to 119 lbs, and in the back of both the 2018 and 2019 Can Am Spyder RT service manuals there is a specification that is lower than the front "How To" section. It allows all the way down to 141 Lbs. My dealer was confused as to why Can Am hadn't standardized the numbers.

Most folks who ride the RT/RTL enough to actually fell the belt vibration prescribe to the lower belt tension group. I asked a master tech if there was some hidden reason not to go as low as possible, the answer was nothing that BRP had put out. My take is less is better on bearings, pulleys, and vibration.