Tractor/Bush Hog question

Blake K

Active member
I have a older Case IH 404 gas tractor that I used to bush hog with. Long story short is that my 20yr old pull behind bush hog bit the dust this weekend as a couple welds failed and I ended up with all sorts of heavy metal piece flying around. Honestly not sure how I didn't get hit by any of the flying metal and praise my lucky stars over this.

Anyhow my tractor had a clutch over running, which also broke, attached to the pto shaft which somehow escaped any damage. I am picking up a new 3pt bush hog today. Do I need to buy a new clutch over running to attach to the tractor pto shaft or am I ok to hook up directly to the pto without the clutch over running.

Guys remember I'm a CPA with a duck hunting problem, not a mechanic nor a farmer so I have limited tractor knowledge.

Thanks in advance for any information!!
 
Blake

I think I understand your question. I suspect you still need that overrun clutch. Ford N series tractors and ones of similar vintage need a pto overrun clutch (locks PTO to implement when PTO driven, unlocks when coasting) because the PTO drive is always coupled to the crankshaft. That means when you press clutch the inertia of the bush hog continues to propel the tractor forward. This can be dangerous. More modern tractors have transmissions with a two-stage clutch that disengage the PTO separately.

Without the overrun PTO does your tractor continue to move forward by the inertia of a spinning implement even after pushing in the clutch? If so you need one. I did a quick google search and after reading a few tractor forum posts on the 404 it sounds like you probably need one.

Eric
 
Last edited:
Eric Patterson said:
Blake

I think I understand your question. I suspect you still need that overrun clutch. Ford N series tractors and ones of similar vintage need a pto overrun clutch (locks PTO to implement when PTO driven, unlocks when coasting) because the PTO drive is always coupled to the crankshaft. That means when you press clutch the inertia of the bush hog continues to propel the tractor forward. This can be dangerous. More modern tractors have transmissions with a two-stage clutch that disengage the PTO separately.

Without the overrun PTO does your tractor continue to move forward by the inertia of a spinning implement even after pushing in the clutch? If so you need one. I did a quick google search and after reading a few tractor forum posts on the 404 it sounds like you probably need one.

Eric

That was the direction I was moving too. Guess really not a big deal to buy a $65 part even if it may not be need. I would rather be safe than sorry thats for sure. Headed to the parts store now.

Thanks for your input!
 
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