12HP petrol Lawn Tractor conversion to 36VDC electric

[jackpreacher]

4 off - £579.80 plus FAT from PB battery Solutions, Wigan. Best price and the guy, Paul Byrne, knows his stuff. Recommended


These 12volt batteries are identical internally to the T105 batteries which are 6volt....same thickness of lead plates etc, just wired for 12v.


TBC

[jackpreacher]

Electrical Schematic

This will be the very basic electrical layout of the conversion. Note: there is no DC controller. The mower has a hydrostatic drive which is powered by a pulley from the engine. The cutting decks are powered by the same driveshaft as it has a double pulley so, when the cutters are required, a lever pulls the drivebelt into contact with the drive pulley and the drive is transmitted to the cutter deck - all at constant speed, so no need for a speed controller. Added to that, these mowers have 5 forward speeds and reverse which is more than adequate for speed control.

LX diagram.jpg

Batteries arrive on Tuesday.

[jackpreacher]

All batteries, contactor, cables and battery charger arrived this week.
Total so far: £1012.28
I will start engineering the motor bracket next week.

TBC

[Wee Jim]

All batteries, contactor, cables and battery charger arrived this week.
Total so far: £1012.28
I will start engineering the motor bracket next week.

TBC

For that money you could pay someone else to cut the grass!!

[jackpreacher]

E

For that money you could pay someone else to cut the grass!!

you're right!

A previous contractor charged £85.00 every other week and made a right mess of it - his total for that partial summer was £600 odd.

Since we've done it it costs £160 per year in fuel.

The conversion will cost just shy of £1200, so that's 2 years of contractor fees or 7/8 years of fuel.......then it'll be free.....then I'll die...............then the mower will be on EBay for peanuts......

[B4D2USA]

E
.....then I'll die...............then the mower will be on EBay for peanuts......

A real optimist I see. "Always with the negative waves Moriarty."

[jackpreacher]

...was that a Donald Sutherland quote in 'Kelly's Heroes' ??...he played a crazy Sherman commander methinks??......

[Stock]

[Muz]

that's 2 years of contractor fees or 7/8 years of fuel.......then it'll be free.....then I'll die...............then the mower will be on EBay for peanuts......

Yes I lolled at that too Jack .. good on ye fella .. looking forward to your project

[jackpreacher]

All the bits are on the garage floor and I'm wondering why I started this and where a grand has got to....

...can't string this project out much longer with no photos...
...will post them on Tuesday (Stock:)

[jackpreacher]

Negative Waves man....

Stock, how did you do that? I can never find stuff like that on the intraweb..........never...

That was the EXACT clip...........

[Stock]

...

[Stock]

Stock, how did you do that? I can never find stuff like that on the intraweb..........never...

That was the EXACT clip...........

As OddBall says Man.....................

[ianoz]

To get the right answer ,You always need to ask the right question .

[jackpreacher]

To get the right answer ,You always need to ask the right question .

Aha.....welcome Ian.........an Asimov fan?