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1974 140 46" deck help


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#1 JC 616 OFFLINE  

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Posted July 28, 2016 - 04:17 PM

I'm been testing out the deck on my 140 and just can't seem to get it level. I have the 46" deck that has the 2 wheels on the back and a single roller in the front. If somebody could let me know how to level or even email a manual that would be really appreciated. Thanks
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#2 KennyP ONLINE  

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Posted July 28, 2016 - 04:23 PM

I wonder how different that would be to a smaller deck?



#3 propane1 OFFLINE  

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Posted July 28, 2016 - 04:48 PM

Do all tractor tires have the right air amount ? There is adjustment on the front of the tractor to raise or lower the front of the deck. I don't know of any other adjustment. Both rear wheels on the rear of the deck the same diameter ? Changing rear deck wheels may help. Say, one a little bigger than the other. You may be able to bend the rod that goes across the back of the deck that the rear wheels bolt to for adjustment. Other than that, I don't know. I don't have a manual.

Oh, and check your blades to see if they or one is bent. Maybe sharpen them and retry it.

Noel

Edited by propane1, July 28, 2016 - 04:51 PM.


#4 JC 616 OFFLINE  

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Posted July 28, 2016 - 04:58 PM

Well I can visually see the left side hangs lower just don't know which way to go. The front hanger has 2 threaded clevises and on the right side rear hanger it has a threaded hook but on the rear left side its just a hanger. Can't adjust the middle mounts where the spring pins go

#5 JC 616 OFFLINE  

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Posted July 28, 2016 - 05:04 PM

Here's an example of what deck I have except mine has the belt covers2012-05-10_12-43-52_596.jpg

#6 KennyP ONLINE  

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Posted July 28, 2016 - 05:19 PM

Have you tried measuring from say concrete up to the blades to see if it is already pretty level? Put the outside blades in line across for side to side level. Then put them in line with the tractor wheels to measure front to back level.



#7 JC 616 OFFLINE  

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Posted July 28, 2016 - 05:31 PM

Lol KennyP I still don't understand how people can measure these blades on any mower deck from the ground. I do mine with a lot of measurements then a lot of math then I can just measure to the deck shell lol. It works pretty good actually. But no I can see the left side hanging lower and that's the fixed side on the rear. Didn't know if I shortened the clevis on the front if that would lift it up or lower the right rear little threaded hook if that would raise the left side a little or a combination of both

#8 KennyP ONLINE  

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Posted July 28, 2016 - 05:35 PM

Without seeing it in person, I am not sure what to tell you.



#9 Cat385B ONLINE  

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Posted July 28, 2016 - 07:51 PM

The right side hanger is how you level the deck side to side. You need to lower the right side to match the left, then adjust the front to get a slight (1/8") forward pitch on the blades.

Do you have enough adjustment left on the adjustable hanger to get it level?

Edited by Cat385B, July 28, 2016 - 07:54 PM.


#10 JC 616 OFFLINE  

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Posted July 28, 2016 - 08:03 PM

The right side hanger is how you level the deck side to side. You need to lower the right side to match the left, then adjust the front to get a slight (1/8") forward pitch on the blades.
Do you have enough adjustment left on the adjustable hanger to get it level?

Yeah I have plenty of threads left. Same on the front hanger where the clevises are. Ok so I'll get the side to side the same then get the front right and should be good. The formed arm on the front right of my deck I think may be bent though cause its hitting the ground pretty good. The rear wheels are just supposed to barely touch the ground right?

#11 lyall ONLINE  

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Posted July 28, 2016 - 08:07 PM

to level a deck on 140 and some others Deere decks

 

140-2.png

 

First I use two or three blocks of wood the same size.

on a level garage floor or driveway I place two of the blocks under the deck. lower the deck so that the blades just touch the blocks. I turn the blades so that the blades going from side to side and move the block just under the blades.

On the hanger (#4)  loosen the nuts (#5) on rod (#7)

you can now level the deck from side to side by adjusting the nuts(#5)

note the lower nut holds the height of the deck up.

once you have the deck level from side to side, make sure the you tighten the other nut tight.

 

140-1.png

 

now to level the deck from front to back

 

with one of the blocks turn the middle blade so that it goes from front to back.

first check the height of the middle blade with the block.

now the fun part

you will have to loosen the jam nuts (#23A or #23B)  and disconnect the front of the mower.

Turn parts (#24A or #24B)

to raise the front of the deck you need to screw in the yokes (#24A or #24B)

this should lift the front of the deck up

to lower the front of the deck you need to unscrew the yokes (#24A or #24B)

this should lower the front of the deck

you should turn each yoke the same

connect the deck and check for level.

repeat  it until you are level or happy

when you got it level you can tighten the jam nuts

 

some people like to have the front a little lower than the side to side level.

 

 


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#12 lyall ONLINE  

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Posted July 28, 2016 - 08:11 PM

the rear wheel should not touch the ground when leveling or mowing

they should only touch the ground when the ground is not level to the deck



#13 JC 616 OFFLINE  

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Posted July 28, 2016 - 08:55 PM

to level a deck on 140 and some others Deere decks
 
attachicon.gif140-2.png
 
First I use two or three blocks of wood the same size.
on a level garage floor or driveway I place two of the blocks under the deck. lower the deck so that the blades just touch the blocks. I turn the blades so that the blades going from side to side and move the block just under the blades.
On the hanger (#4)  loosen the nuts (#5) on rod (#7)
you can now level the deck from side to side by adjusting the nuts(#5)
note the lower nut holds the height of the deck up.
once you have the deck level from side to side, make sure the you tighten the other nut tight.
 
attachicon.gif140-1.png
 
now to level the deck from front to back
 
with one of the blocks turn the middle blade so that it goes from front to back.
first check the height of the middle blade with the block.
now the fun part
you will have to loosen the jam nuts (#23A or #23B)  and disconnect the front of the mower.
Turn parts (#24A or #24B)
to raise the front of the deck you need to screw in the yokes (#24A or #24B)
this should lift the front of the deck up
to lower the front of the deck you need to unscrew the yokes (#24A or #24B)
this should lower the front of the deck
you should turn each yoke the same
connect the deck and check for level.
repeat  it until you are level or happy
when you got it level you can tighten the jam nuts
 
some people like to have the front a little lower than the side to side level.

Wow. Thanks for the very detailed explanation. This is exactly what I was looking for

#14 hdg4400 OFFLINE  

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Posted July 28, 2016 - 10:10 PM

JC 616:

 

The Operator's Manual for the 41 and 48 (46" cut) deck for the JD 140 gives a detailed explanation of how to level the deck. I could send it to you.

 

Also, I bought a JD gauge that measures the blade height. Here is a picture.

 

SAM_0412.JPG

 

I think it was like $7, plus shipping.

 

Harlan


Edited by hdg4400, July 28, 2016 - 10:22 PM.

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#15 shorty ONLINE  

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Posted July 29, 2016 - 05:17 AM

That's a neat little gadget Harlan. Definitely would make it easier.




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