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post #1 of 26 Old 05-01-2019, 12:58 PM Thread Starter
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John Deere 445 Hydraulics question

Excuse my ignorance all you guru's and experts I have a question you'll all probably think is a dumb question, but I'm going to ask anyway haha. I have a 3pt on my 445 and I very rarely take the 60" deck off. Is there a valve or something I need so I can control the 3pt separate from the deck hydraulics? Its not all that handy to have the deck to also be lowered when I use the 3pt blade to level the gravel driveway and other 3pt tasks. What do I need to install? I'm pretty mechanically inclined but have done almost 0 monkeying with this 445 beyond normal servicing.

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post #2 of 26 Old 05-01-2019, 01:08 PM
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Re: John Deere 445 Hydraulics question

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Originally Posted by Profound Ag View Post
Excuse my ignorance all you guru's and experts I have a question you'll all probably think is a dumb question, but I'm going to ask anyway haha. I have a 3pt on my 445 and I very rarely take the 60" deck off. Is there a valve or something I need so I can control the 3pt separate from the deck hydraulics? Its not all that handy to have the deck to also be lowered when I use the 3pt blade to level the gravel driveway and other 3pt tasks. What do I need to install? I'm pretty mechanically inclined but have done almost 0 monkeying with this 445 beyond normal servicing.
Mower height control, raise mower to lock. Number 7 to lock.

7. To lock mower in completely raised position:

∑ Raise mower as high as it will go using the hydraulic control lever.

∑ Crank height control clockwise until it is tight. Close crank.

Operating Mower Height Control

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post #3 of 26 Old 05-01-2019, 01:12 PM
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Re: John Deere 445 Hydraulics question

I'll offer my 2 cents since I'm a dummy too!
Maybe this will help though. Growing up one tractor we had was a Farmall Cub with a belly mower. Grandad wanted to still use 3 point hitch and keep mower on at times, so he just put a chain on mower deck, raised it all the way and hooked it to an S hook hanging from tractor. Actually two small chains going either side of deck so it stayed up out of the way and balanced.
Very simple and it worked.

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post #4 of 26 Old 05-01-2019, 01:14 PM
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Re: John Deere 445 Hydraulics question

Depending what you are trying to achieve, a lock-out valve might be a nice upgrade:

4x5 by Aux Hydraulics


.




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post #5 of 26 Old 05-01-2019, 01:15 PM Thread Starter
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Re: John Deere 445 Hydraulics question

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Originally Posted by pipsqueek View Post
Mower height control, raise mower to lock. Number 7 to lock.

7. To lock mower in completely raised position:

∑ Raise mower as high as it will go using the hydraulic control lever.

∑ Crank height control clockwise until it is tight. Close crank.

Operating Mower Height Control
Then I have to re adjust every time I mow? That sounds like a pain in the arse haha

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post #6 of 26 Old 05-01-2019, 01:21 PM Thread Starter
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Re: John Deere 445 Hydraulics question

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Originally Posted by UrbanTractor View Post
Depending what you are trying to achieve, a lock-out valve might be a nice upgrade:

4x5 by Aux Hydraulics


.
That is more along the lines of what I'm after. I want the deck to stay up while I'm monkeying around with 3pt attachments (blade, hitch, sprayer, etc)

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post #7 of 26 Old 05-01-2019, 03:31 PM
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Re: John Deere 445 Hydraulics question

The auxhyd.com is quality stuff. I used it on my 425.

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post #8 of 26 Old 05-01-2019, 05:35 PM
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Re: John Deere 445 Hydraulics question

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Originally Posted by Profound Ag View Post
Then I have to re adjust every time I mow? That sounds like a pain in the arse haha
Shouldn't have to do any adusting, just make sure the deck is all the way up, turn the height adjustment back to your desired mowing height, lower the deck and mow. Takes anywhere from 15 to 30 seconds to complete the task and begin mowing.

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post #9 of 26 Old 05-01-2019, 07:06 PM Thread Starter
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Re: John Deere 445 Hydraulics question

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Shouldn't have to do any adusting, just make sure the deck is all the way up, turn the height adjustment back to your desired mowing height, lower the deck and mow. Takes anywhere from 15 to 30 seconds to complete the task and begin mowing.
It has been awhile since I monkeyed with the deck adjustment (something like 3 years) but I was thinking once you move that crank you would have to readjust the deck height all over again, not as easy as just putting on "setting 3" or anything. Now I gotta trudge through the mud to go look, maybe I'm thinking of an entirely different machine

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post #10 of 26 Old 05-01-2019, 07:14 PM
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Re: John Deere 445 Hydraulics question

I am not sure that the lockout valve is what you want, as the deck cylinder is typically what operates the 3PH, so you need it to be working.

The lockout valve is for when you have external hoses plugged into system (such as a loader, blower, etc), which puts 2 cylinders in parallel.
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post #11 of 26 Old 05-01-2019, 07:34 PM
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Re: John Deere 445 Hydraulics question

When you turn the crank upward to hold the deck up, count the number of turns it took. WRITE THIS NUMBER DOWN! Now you know exactly where to take it.

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post #12 of 26 Old 05-01-2019, 07:51 PM
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Re: John Deere 445 Hydraulics question

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Originally Posted by Profound Ag View Post
It has been awhile since I monkeyed with the deck adjustment (something like 3 years) but I was thinking once you move that crank you would have to readjust the deck height all over again, not as easy as just putting on "setting 3" or anything. Now I gotta trudge through the mud to go look, maybe I'm thinking of an entirely different machine
the old deere's like the 110's 210's 318's 420's had no "setting" you just set the depth control to where ever.

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post #13 of 26 Old 05-01-2019, 07:51 PM Thread Starter
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Re: John Deere 445 Hydraulics question

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When you turn the crank upward to hold the deck up, count the number of turns it took. WRITE THIS NUMBER DOWN! Now you know exactly where to take it.
Write it down but then you expect me to remember where I wrote it down?

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post #14 of 26 Old 05-01-2019, 07:53 PM Thread Starter
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Re: John Deere 445 Hydraulics question

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the old deere's like the 110's 210's 318's 420's had no "setting" you just set the depth control to where ever.
Ahhhh. I bet I'm thinking of the 317 the 445 replaced! That and growing up running a 317 and later a 318 for Dad nearly every day all summer long.

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post #15 of 26 Old 05-01-2019, 07:56 PM
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Re: John Deere 445 Hydraulics question

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Originally Posted by tractorPete View Post
I am not sure that the lockout valve is what you want, as the deck cylinder is typically what operates the 3PH, so you need it to be working.

The lockout valve is for when you have external hoses plugged into system (such as a loader, blower, etc), which puts 2 cylinders in parallel.
You make a good point. I keep forgetting that my 140 has dedicated separate cylinders for the 3PH and rockshaft deck lift, which is unusual. You get extra stuff like that with 3 spools of hydraulics!




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