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  1. #1
    New Member
    Join Date
    Apr 2012
    Posts
    13
    Location
    McPherson, KS
    Tractor
    JD 3020

    Default 3020

    My dual 6 volt batteries are bad and need to be replaced. Im looking for advise about replacing these or changing to a single 12 volt battery. I have the long thin battery battery cases and would like to continue to use these if I change to a single 12 volt battery. Any opinions, advantages or disadvantages ?

  2. #2
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
    Posts
    3,715
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: 3020

    If you need to start engine in the Winter in Kansas you will need a battery with over 1000 CCA or possibly change over to 2 long 12 V batteries attached in parallel.My JD 4255 has 2 12V's in parallel

  3. #3
    Super Star Member brin's Avatar
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    Jul 2009
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    10,060
    Location
    Georgia - Mt. Vernon by The Store just 5 miles east and right by the big oak tree then to the creek.

    Default Re: 3020

    The only way my 3020 has ever started in the winter in Georgia is with a charger on one of the batteries set on the Start boost...quick start setting...Unless it is just my 3020 they just hate cold weather....they have no glow plugs...and the ether port is dangerous to use...if you inject too much you can blow the engine...so I never used ether.
    Bob

    WORRYING does not take away tomorrow's TROUBLES, it takes away today's PEACE.


    NH - TC-29 , FEL, Bush hog, Bush hog brand finishing mower, Post hole digger, 6' Back blade, sub-soiler, Pallet forks, 20KW PTO Generator , 21 hp Murray Mower
    JD -3020 with FEL and a 16 HP. K-Grow Lawn Tractor (bought from K Mart 1994) and runs great !
    Clark 130 EN Mig Welder

  4. #4
    Gold Member
    Join Date
    Jan 2008
    Posts
    325
    Location
    South
    Tractor
    A little of everything

    Default Re: 3020

    I agree with Tx Jim. Change it over to two 12 volts, just be sure to wire them correctly.

    brin, You may already know this"trick", but try rotating the steering wheel back and forth fast while starting. This helps to relieve some of the pressure off the pump making the engine easier to turn and a little easier to start, especially on a cold morning.

  5. #5
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
    Posts
    3,715
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: 3020

    Quote Originally Posted by brin View Post
    The only way my 3020 has ever started in the winter in Georgia is with a charger on one of the batteries set on the Start boost...quick start setting...Unless it is just my 3020 they just hate cold weather....they have no glow plugs...and the ether port is dangerous to use...if you inject too much you can blow the engine...so I never used ether.
    Have you ever considered installing and utilizing a engine coolant heater?

  6. #6
    Super Star Member brin's Avatar
    Join Date
    Jul 2009
    Posts
    10,060
    Location
    Georgia - Mt. Vernon by The Store just 5 miles east and right by the big oak tree then to the creek.

    Default Re: 3020

    Quote Originally Posted by AGRIMAN View Post
    I agree with Tx Jim. Change it over to two 12 volts, just be sure to wire them correctly.

    Mine does have two 12 volts....starts fine in the summer ...but when it gets below 50 deg....I need the fast charger on one of the batteries...

    brin, You may already know this"trick", but try rotating the steering wheel back and forth fast while starting. This helps to relieve some of the pressure off the pump making the engine easier to turn and a little easier to start, especially on a cold morning.
    I did not know that...I will give it a try...I have always suspected it must be because there are no glow plugs...and of course the hyd. fluid is jelled in the winter....
    Bob

    WORRYING does not take away tomorrow's TROUBLES, it takes away today's PEACE.


    NH - TC-29 , FEL, Bush hog, Bush hog brand finishing mower, Post hole digger, 6' Back blade, sub-soiler, Pallet forks, 20KW PTO Generator , 21 hp Murray Mower
    JD -3020 with FEL and a 16 HP. K-Grow Lawn Tractor (bought from K Mart 1994) and runs great !
    Clark 130 EN Mig Welder

  7. #7
    Super Star Member brin's Avatar
    Join Date
    Jul 2009
    Posts
    10,060
    Location
    Georgia - Mt. Vernon by The Store just 5 miles east and right by the big oak tree then to the creek.

    Default Re: 3020

    Quote Originally Posted by Tx Jim View Post
    Have you ever considered installing and utilizing a engine coolant heater?
    I never have ...but I think it is due to not having glow plugs...and the hyd. fluid getting thick...beats me ..it has always been hard to start without a fast charger on one battery for over 20 yrs. now..
    Bob

    WORRYING does not take away tomorrow's TROUBLES, it takes away today's PEACE.


    NH - TC-29 , FEL, Bush hog, Bush hog brand finishing mower, Post hole digger, 6' Back blade, sub-soiler, Pallet forks, 20KW PTO Generator , 21 hp Murray Mower
    JD -3020 with FEL and a 16 HP. K-Grow Lawn Tractor (bought from K Mart 1994) and runs great !
    Clark 130 EN Mig Welder

  8. #8
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
    Posts
    3,715
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: 3020

    Quote Originally Posted by brin View Post
    I never have ...but I think it is due to not having glow plugs...and the hyd. fluid getting thick...beats me ..it has always been hard to start without a fast charger on one battery for over 20 yrs. now..
    Bob
    You could install a $15 destroking screw to relieve hyd pressure while attempting to start engine in cold weather. parts key #6 AR33249 SCREW 1 (MANUAL DESTROKE)

    What type trans does the 3020 have?
    Attached Thumbnails Attached Thumbnails 3020-rp3510_________un01jan94.gif  

  9. #9
    Platinum Member pjbci's Avatar
    Join Date
    Feb 2012
    Posts
    712
    Location
    Summit. Ms
    Tractor
    JD 4840, 450j, 310, komatsu D31px22, IH 1486, MF 135, MHF TO35

    Default

    AGRIMAN, i thougt everybody knew the JD steering wheel trick till a few weeks ago. A farmer freind of mine called to ask if there were any tricks to cranking my 4840 he had borrowed. At first i told him no then ask him, you are spinning the steering wheel arent you? He had never heard of such. Anyway it cranked right up then.

  10. #10
    Bronze Member
    Join Date
    Jul 2008
    Posts
    61
    Location
    Wisconsin
    Tractor
    JD M, JD B, JD A, JD 50, JD 60, JD 420 JD 530, JD 630, JD 1010, JD 1010 Crawler,JD 3020G, JD 3020D, JD 2520 Compact Utility, JD 4720 Compact Utility

    Default

    I have both a 3020 gas early style and a 3020 diesel late style and they both start in cold Wisconsin winters. Try to have the diesel plugged in if possible, but have started it below freezing without ether. The steering wheel trick works because deere uses the same pump for steering, power brakes, and hydraulics. It is in essence providing relief to the hydraulic system, so it doesn't try to build up pressure during cranking. Both my 3020s start without it though.

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