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Sheared Subframe bolts TC33D

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daustin
Join Date: Jul 2003
Posts: 11 NJ
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2003-08-05          61024


The lower two forward BH subframe bolts have loosend up repeatedly and required tightening several times. (all dealer parts and dealer installed) While doing some digging, one bolt must of loosened and fell out, the other then sheared. Has anyone had any problems with this also? How about hydraulic leaks, I tend to have leaking couplers and connestions. Again, all dealer installed. 60 Hrs on 3 month old machine. Otherwise love it, and did a lot of brand comparison. Purchased from the NH dealer I liked the best of the three I visited. Found this sight very helpfull in my research.
Thanks


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Sheared Subframe bolts TC33D

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Chief
Join Date: Jul 2003
Posts: 4294 Southwest MiddleTennessee
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2003-08-05          61029


Looks like folks are busy and kinda slow getting an answer to your post; so I will take a swag at it. I am sure someone will respond ASAP. I am not really up to speed on the particulars of your machine but for starters, I would try looking at a parts manual diagram of the the hoe and attachment hardware to compare and ensure that all the pins, bushings, links, bolts, ect. Are there and have not been changed or updated. It sounds to me like something may not have been assembled right or the right parts may not have beens used from the get go. I would make sure I use torque wrench to verify proper tightness of all bolts and fasteners. What if anything has the dealer said about this? Maybe some of the other members can jump in here and have better info. than I do. ....

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Sheared Subframe bolts TC33D

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TomG
Join Date: Feb 2002
Posts: 5406 Upper Ottawa Valley
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2003-08-06          61051


Sounds like a general tightening wasn't done in something like a 50-hour service. Maybe that's not part of the standard service routine but it probably should be. Bolts that take heavy loads tend to loosen and especially when they're new. I go through a general tightening once or twice a year and look for cracks and spread seams as well. I check the wheel lugs more frequently. The loader frame and mounts get particular attention and it's not uncommon for me to find a loose pivot point bolt.

It's good that nothing broke and maybe the problem should have been caught in warranty servicing. Checking tightness is a regular part of tractor maintenance. It's got to be done regularly but it's often left to the owner.

There are general torque tables that give general torques by bolt size. However, torque valves are for clean new bolts and putting a torque wrench on an old bolt doesn't ensure it's actually tightened to a correct value. But the fine points really are applicable mostly to assemblies where tightening sequences are specified. Ballpark stuff generally works, and after you wrench for awhile you get a feeling for when a bolt is properly tight.

I don't know. Leaking fittings is sort of an aggravation thing. Many of them leak a bit. My used Ford always has a bit of oil on the loader valve. It's just never been enough of an aggravation for me to fix. Torque valves here are a little more important since 'too tight' can make fittings leak and so can 'too loose.' Tape or liquid sealer will fix slightly dinged fittings but either should be used only on the upper third of the fitting threads. You don't want to stuff to extend into the oil flow.

....

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Sheared Subframe bolts TC33D

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daustin
Join Date: Jul 2003
Posts: 11 NJ
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2003-08-07          61124


After checking further, I found that the cast "ear" on the clutch housing which the left lower bolt threaded into also broke off. I am very glad that I bought this tractor from a fairly local dealer, rather then having it shipped up from S.C. as many advise. The owner of the dealership stayed late last night until I could arrive and discuss the problem. He stated he would cover the repair. (split the tractor and install a new clutch pick upget oil, filters etc... and is sending me a bill as his register was closed out. You can't get service like that without having developed a personal relationship with your dealer!
....

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Sheared Subframe bolts TC33D

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Chief
Join Date: Jul 2003
Posts: 4294 Southwest MiddleTennessee
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2003-08-07          61141


Sending you a bill????? Unless I missed something here; (60 hrs. on 3 month old tractor) I would think this should be covered under warranty. If a specified inspection was missed or done improperly by someone other than the dealer, then that may be a another issue. In any case, sure hope you get this worked out to your liking. ....

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Sheared Subframe bolts TC33D

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Murf
Join Date: Dec 1999
Posts: 7211 Toronto Area, Ontario, Canada
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2003-08-07          61144


Cheif, the 'bill' may be rather painless. It has become rather common up here that while the 'repair' is completely covered under warranty, certain 'consumables are not. In a case like this the norm up here would be that the repair is warrantied by the manufacturer but the customer would pay for new oil, filters if required, etc.

If the customer balks they will usually run the old oil through some sort of filter (usually a couple of coffe filters in a funnel) and then put it back in for free. Most people bite for the new stuff, it's cheap insurance after all.

Best of luck. ....

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Sheared Subframe bolts TC33D

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Chief
Join Date: Jul 2003
Posts: 4294 Southwest MiddleTennessee
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2003-08-07          61150


Thanks Murf, learned something new! Did not realize this was the case now a days. I do my own maintenance and have not been to a dealer in many moons. ....

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Sheared Subframe bolts TC33D

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Art White
Join Date: Jan 2000
Posts: 6898 Waterville New York
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2003-08-07          61159


Chief, sometimes I even find it a better investment of my time to let my boys do the repair. They go to all the service schools today and I don't. I used to 20 years ago consider myself a tech not a mechanic today I don't. There are many little secrets that the boys in the shop learn that helps them do there jobs faster and better,they know where to look. I still like to get greasey but not like before, they from time to time ask for my advise on better ways to make a good repair, some times I think it's just to make me feel good. This is not a new problem with the NH tractors of these bolts doing this. I believe DAustin did well to take it to the dealer to have this problem documented by the dealer. ....

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Sheared Subframe bolts TC33D

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daustin
Join Date: Jul 2003
Posts: 11 NJ
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2003-08-07          61161


Something got left off my last post. Words were deleted somehow after it was sent. The dealer is covering the repair. I will be surprised if he charges me anything. While I was there, after hours ( his register was closed down) I picked up oil, filters, etc.. and he just wrote down what I got and will sent me a bill for those items. The tractor was serverced by the dealer at 35 hours, as I thought 50 was to long for the first service. Not sure if he checked bolt tourqe or not. I looked up the tourque specs for the 16mm bolts already, but will go check that the proper rated bolt was used. Thanks for the advise. ....

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