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New Holland 7740
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dmtred
Posted 12/21/2011 23:48 (#2117621)
Subject: New Holland 7740


I recently purchased a 1996 New Holland 7740 SLE. It has MFD, cab, the 16x16 trans, and 4400 hrs. What are some things that should be checked out, as I am new to this tractor. I would also like to know if I can use Case- IH Hytran instead of the NH 134 oil in the transmission and MFD. Thanks for any replies.
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Robertbob
Posted 12/22/2011 05:20 (#2117777 - in reply to #2117621)
Subject: RE: New Holland 7740


Hytran and 134 are compatible. You will have no trouble mixing the two fluids.
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BBfarms
Posted 12/22/2011 06:29 (#2117794 - in reply to #2117621)
Subject: RE: New Holland 7740


Had a 1994 Ford-NH 7740 MFD for a few years, was a good tractor.

Here are the problemse I had.
- Solenoid on the pump went out (no fuel) easy to fix, about $100 part from CNH, every tractor I had with that pump / solenoid combo, had a bad solenoid at one time, I would keep one on hand.
- Solenoid that dis-engaged the MFD went bad, found a used one for about $75
- Big time electrical problems when I bought it, ( dash lights were on / did not work, gages did not work) Dealer found a cracked ground connection on the circuit board, TV repair shop repaired for free, just cost me the labor.

Over-all loved the tractor, traded it for a newer CaseIH last year.

I uesed Hy-tran in mine also

I have a 1000rpm PTO for it, allot of new wiper arms and blades (New Holland brand) if you are interested, also a New Holland repair manual and parts manual for it .

E-mail is in profile.



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slowzuki
Posted 12/22/2011 07:38 (#2117848 - in reply to #2117621)
Subject: RE: New Holland 7740


There are a few with 10,000 hrs plus around here. SLE semi-powershift models. There is a fuel line between the upper fuel tank and the lower one that tends to rub through and leak. On the UK forums they have threads of common problems and fixes.
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retento
Posted 12/22/2011 08:19 (#2117903 - in reply to #2117848)
Subject: Re: New Holland 7740


Eastern North Carolina
Those 304cid, 4 cylinder engines ran pretty strong. They were rated at about 86 hp at the pto. About every one them that was dynoed at the dealer here were turning 95 hp+ at the pto.
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The Pretender
Posted 12/22/2011 08:42 (#2117950 - in reply to #2117621)
Subject: RE: New Holland 7740


The Internet
If it starts throwing fan belts off it needs a new idler pulley and or water pump.

The syncros can get weak, these are expensive to fix.

You might want to recalibrate the powershift from time to time. I think, but may be wrong, when you are doing this, the number on the screen gives an idea how worn the clutches are 100 = 100%, down near 70% = they've about had it.

The PTO oil seals can start to leak, it's an easy replacement. We've had the pto brake need adjusting on one of them.

You can fit two batteries in the box, if it is cold you may need them

I've drive loads of these 40 Series, from when they first came out to some of the last. They were dreadfull when they first came out, but Ford/NH got them sorted. We have an 82 and 8340 at work, both with north of 8000 hours and driven by everyone and his dog. They're never any bother. II've never known one have any engine bother at all.
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d6btex
Posted 12/22/2011 10:07 (#2118144 - in reply to #2117621)
Subject: Re: New Holland 7740



SE Texas
Great tractor. As already noted, the fuel solenoid is the only problem I ever had with it.
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aussiebagger
Posted 12/22/2011 15:55 (#2118751 - in reply to #2117621)
Subject: RE: New Holland 7740


Adelaide Hills, South Australia
We have a 7740 and they are good even here down under! Ours has 8800hrs. It is mainly used in front of a TMR/ mixer wagon. We had the wires that run down from the forward/reverse lever clutch button get damaged between the levers and cause some error codes. It had a turbo replaced and the PTO shaft because the circlip that holds the 6 or 21 spline shaft kept coming out. It had done a lot of PTO work before we got it. Still lots of 40 series going strong down here!!
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