Caught on Fire

[mattadata]

Thanks. If I rebuild, I will go with XCT

[scottyb]

Originally Posted by mattadata

Thanks. If I rebuild, I will go with XCT

Even if you get a CC precedent - install the XCT

[zoner]

Originally Posted by scottyb

The new generation Alltrax controls regulate motor rpm. A safe limit can be set which would avoid the over-rev situation.

Could insurance deny a claim for modifying a cart that does create an over-rev situation?

[gornoman]

Originally Posted by zoner

Could insurance deny a claim for modifying a cart that does create an over-rev situation?

Not unless there is a provision in the policy stating such.

[DaveTM]

Looks like the controller is the suspect?

.....Or....did I see someone with a gas can behind the grassy knoll??

[JohnnieB]

Originally Posted by mattadata

Based on past trips on the same road with my GPS....I would guess about 28 mph.

If your tires are stock height (18") and you are running stock gears (12.44:1), the motor RPM at 28 MPH is 6505 RPM, which a stock PDS ought to tolerate a steady diet of.

If your tire height is taller than 18", your motor was spinning slower than 6.5k at 28 MPH.

My tires are only 17" tall and I ran a nearly 29 MPH on level ground, so I was routinely spinning my stock PDS motor a bit over 7k without exploding it. In fact, it had been spinning over 8k (33 MPH) for at least 500 yards when it did fail and it didn't fail until I lifted my foot and the regen braking kicked in, causing the heat in the armature windings to skyrocket.

The more I think about this, the more I believe heat alone caused the initial failure of my motor and RPM just contributed to the results after that failure occurred, but I might be wrong.

[mattadata]

Originally Posted by JohnnieB

If your tires are stock height (18") and you are running stock gears (12.44:1), the motor RPM at 28 MPH is 6505 RPM, which a stock PDS ought to tolerate a steady diet of.

If your tire height is taller than 18", your motor was spinning slower than 6.5k at 28 MPH.

My tires are only 17" tall and I ran a nearly 29 MPH on level ground, so I was routinely spinning my stock PDS motor a bit over 7k without exploding it. In fact, it had been spinning over 8k (33 MPH) for at least 500 yards when it did fail and it didn't fail until I lifted my foot and the regen braking kicked in, causing the heat in the armature windings to skyrocket.

The more I think about this, the more I believe heat alone caused the initial failure of my motor and RPM just contributed to the results after that failure occurred, but I might be wrong.

JohnnieB - I remember your story from other threads....so I am pretty confident I had it floored going downhill when it seized. I was actually in mid-sentence with my wife explaining how to go down hills without too much regen when it happened. I will never hear the end of that one!

I do have stock tires - I measured them once and I think they were 17.X

[Jeffreynmandy]

I think I'll head to the insurance company in the morning. What type of coverage is best for golf carts and atv's? Personal articles, or rec. Vehicle ins.?

[JohnnieB]

Originally Posted by mattadata

JohnnieB - I remember your story from other threads....so I am pretty confident I had it floored going downhill when it seized. I was actually in mid-sentence with my wife explaining how to go down hills without too much regen when it happened. I will never hear the end of that one!

I do have stock tires - I measured them once and I think they were 17.X

If your tire are shorter than 18", your motor was spinning faster than 6.5K at 28 MPH, but like I said, I believe our motor failures were heat related and the high speed just made the black marks longer when we slid to a stop.

Fortunately, SWMBO was out shopping (her favorite activity) when I decided to see how fast my cart could go downhill, but I still get some negative feedback about the incident occasionally.

Most of the time, I've got my XCT set to 6500 RPM (26.5 MPH with my tire height), which is faster than I usually drive. The speed limit on the city streets is 25 and most of the other roads and all the trails I travel are too rough to go anywhere near that fast.

[JohnnieB]

Originally Posted by Jeffreynmandy

I think I'll head to the insurance company in the morning. What type of coverage is best for golf carts and atv's? Personal articles, or rec. Vehicle ins.?

It probably varies from state to state, but my cart is on the same policy as my cars.