Mowing Dont ask me how I know

[Browneyesvictim]

Just DUMB! Why don't they put their efforts into providing better factory training to the sub-par dealers? (sigh....) Those dealers need to "Rise" on their own merits! Not at Mahindra customers expense! I call FOUL!

 

[Xfaxman]

I am posting this for those that don't know about phasing u-joints.

On that drive shaft, lining up the zerks when you slide it together, should put them in phase.

They are laying 90 degrees out of phase in your picture, that is what made me think about it.

 

[lennyzx11]

Hi xfaxman,

I was a master ASE mechanic and jeep freak in a past life and do understand ujoint phasing having built a few drive lines for custom work.
But I don't understand what is wrong with the INCORRECT picture.
As I understand as long as the two crosses (ujoints) are inline with each other so the angles at each end are complementary, they "should" operate vibration free by canceling out each other.
What have I missed?

 

[Xfaxman]

They will vibrate when the shaft angles are like this.

The theory and math formulas are above my comprehension, I just know on my TORO Groundsmaster, it vibrates if I slide it together out of phase.

 

[roughcut]

Great information Xfaxman. Thanks for sharing!

 

[Jabonee]

I am posting this for those that don't know about phasing u-joints.

On that drive shaft, lining up the zerks when you slide it together, should put them in phase.

They are laying 90 degrees out of phase in your picture, that is what made me think about it.

View attachment 465829



View attachment 465830

Please correct me if I'm wrong but I thought there master spline that will only allow you to put the 2 halves together in one spot only.:confused3:

 

[Jabonee]

Just DUMB! Why don't they put their efforts into providing better factory training to the sub-par dealers? (sigh....) Those dealers need to "Rise" on their own merits! Not at Mahindra customers expense! I call FOUL!

The factory training is actualy pretty good. Its Mahindra's dealer tech support thats lacking. Its getting better but still has a long way to go. There still in the mindset "sell,sell,sell"

 

[Browneyesvictim]

The factory training is actualy pretty good. Its Mahindra's dealer tech support thats lacking. Its getting better but still has a long way to go. There still in the mindset "sell,sell,sell"

Not sure if that's any more comforting. They say knowledge and comprehension (book-smart) can be taught, but "skill" is something that comes with experience. I've noticed many of the new Mahindra dealers have no background, or come from smaller power tools (chainsaws and weed whackers) background and don't have any agg/industrial equipment experience. The "trial by fire" method can work, but at whose expense is that at for them to learn and gain the experience?

And yes... there is a master spline on this driveline and can only go on one way.

 

[Jabonee]

Not sure if that's any more comforting. They say knowledge and comprehension (book-smart) can be taught, but "skill" is something that comes with experience. I've noticed many of the new Mahindra dealers have no background, or come from smaller power tools (chainsaws and weed whackers) background and don't have any agg/industrial equipment experience. The "trial by fire" method can work, but at whose expense is that at for them to learn and gain the experience?

And yes... there is a master spline on this driveline and can only go on one way.

I agree 100%. Mahindra when putting a dealership into a area is looking more at the sales potential and NOT the supposed dealerships background. :confused2:

 

[Xfaxman]

I am posting this for those that don't know about phasing u-joints.


View attachment 465830

Please correct me if I'm wrong but I thought there master spline that will only allow you to put the 2 halves together in one spot only.:confused3:

Some do, some don't. The TORO shafts have an indexing system but after years of hard use (and not enough grease) the splines will wear enough to go together at any angle.

Hear is an over 20 year old shaft, pushed together 90 degrees out of phase: