Recent content by bellzey

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    NH TC33DA Starter Problem

    Thank you nyone for your perspective on my recent comment. If I had not retired as an OEM service representative for another company, I would probably agree with you. Based on my own experience, I can tell you that design engineers generally do not work in the field. Sales asks research and...
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    NH TC33DA Starter Problem

    I would like to thank everyone for their information and suggestions. I believe we can all agree that New Holland messed up with the safety interlock system. I have not decided on a course of action yet, but at least I know what I need to accomplish to correct the problem.
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    NH TC33DA Starter Problem

    You are right on the nose Nyone. My bad. I have not, but you are correct about the OEM modification.
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    NH TC33DA Starter Problem

    Thank you for the suggestion. I think we have narrowed the problem down to a design flaw in the safety interlock system which can be modified
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    NH TC33DA Starter Problem

    I did some research and New Holland did offer a relay upgrade many years ago, but most dealers where not aware of it at the time. Thank you again for your input. I am thinking of just putting in a momentary contact switch that bypasses the interlock system all together for those odd times when...
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    NH TC33DA Starter Problem

    I spoke in error. You are correct. At the time I did not consider that there are 5 or 6 relays in the starter safety interlock system. When you add up the voltage drops, voltage at the starter relay will be less. Resistance across each relay can change due to environment resulting in a higher...
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    NH TC33DA Starter Problem

    Thank you, that is a good Idea, but I want to determine if the existing relay is defective first. Thank you, that is an interesting thought, and entirely possible. I have seen that happen more than once. Take out a bad part and install a new one just like it. If that is the case, I am right...
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    NH TC33DA Starter Problem

    I'm still wondering about the relay. It may click, but that doesn't mean it is making a good connection (i.e ignition points). If there is corrosion on the relay contacts, turning the switch on and off a few times could possibly arc off any corrosion that is preventing a good contact. I'm not...
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    NH TC33DA Starter Problem

    Thank you for your input. Maybe so, but voltage is likely to be constant. Turning the key on and off a dozen times and correcting the issue isn't likely to change the voltage, but you never know. Same thing with the battery cables. Possible that there might be a corrosion problem, but then...
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    NH TC33DA Starter Problem

    Good point. Thank you for your suggestion.
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    NH TC33DA Starter Problem

    Thank you for your suggestion. It's worth a try since I have had the problem on two starters. It's the intermittent nature of the beast that is the problem. It might work when I do that, then again it might not. If it does work, the answer is inconclusive because it might not work the next time...
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    NH TC33DA Starter Problem

    Intermittently, the starter would not engage when the key was turned. the starter relay clicked but the starter motor would not engage. After repeated attempts, the engine started. Weeks might go by before it happened again. I have seen this before on other starters when there is a "dead" spot...
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    TC33DA Instrument Cluster Problem

    On my TC33DA the fuel, and tachometer are both out of calibration. I followed the manual for troubleshooting and determined the fuel gauge is a goner. I didn't see any point going further. The cluster is a package deal. The cluster (PN 86403813 or 86403813R) is just not available anywhere. At...
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    Just joined from bluegrass country, Lexington, Ky, USA

    Hello to all the fellow members. Not much to say about me. I live in horse country and have horses. My wife and I show Arabian horses at the national level, and that is where all our money goes. I've got a New Holland TC33DA with a loader that I use around our 5.5 acres, and it gets used for...
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    NH TC33DA Wiring Schematic.

    I could sure use some help here. Like the title says, I have a New Holland TC33DA, but I have an OEM manual for my previous tractor which was a TC33D. The year I traded was the year they changed the safety circuits, and the wiring schematic. I recently had an electrical malfunction in that...
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