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Cab and 4320

2

2510Paul

Well-known Member
Has anyone taken a Hinson cab off a JD 4320? Did it make it much quieter/less vibration for the operator? My cab is really noisy, I use ear plugs and ear muffs. I find after an hour or so of operation my body really stiffens up, I believe due to the noise and vibration. I can't turn at all. (I already installed an air ride seat that helped my back greatly, but I still stiffen up greatly and just get exhausted.) My neighbor drove it one round in the field, he commented he now understood why I used both ear plugs and ear muffs.

By the way, an oil check showed no issues with the rear end.

Anyway, has anyone experienced this and taken the cab off? Did it help? Thanks.

Paul
 
Neighbor bought one new, still has it. It came with a cab. After a few years he took it off and said that was the best thing he ever did to it. I had a 4020 with a cab, it also came off.
 
They are much quieter with the cab off. Only advantage to having a cab is on those really cold days as it does make a nice wind-break and keep the snow and rain off of ya. This time of the year they are just a noisy, dusty, sweatbox.

Those cabs can be tricky to remove. Getting all the bolts out of the floor plates is the key. I am saving a 4320 with factory cab for a future sound-gard project. Should be nice. The 6030 I did turned out great and I am doing a 4620 p/s right now.
 
Are the 4320's (Super 4020) becoming collectable yet? If they are collectable you might be able to sell it and buy a 4430 with a SoundGard cab for not much extra money.
 
For what little I have been in those early cabs I relate them to putting a metal bucket on your head and banging on it ! There might be some sound deadening product you could try on it ?
 
I have a 3130 with a SIM cab on it. same issue, noisy, hot and a stress to drive and run long periods. I left the cab frame on the tractor but took off all the glass panels and doors. Made a huge difference in how it feels and the noise level. Roof of the cab is handy for the shade and the fan mounted in the roof is still nice to use when its really hot. Shields you from limbs and rocks a little as well.
 
Thank you so much for the responses. Your experiences are very helpful. For fun I included a picture. Paul
a232490.jpg
 
(quoted from post at 00:51:02 07/21/16) Are the 4320's (Super 4020) becoming collectable yet? If they are collectable you might be able to sell it and buy a 4430 with a SoundGard cab for not much extra money.
Click to expand...

4320s are collectible since they only made them two years. Certain parts that are not common with 4020s are really hard to find too. The catch is that a 4320 with a cab won't bring as much as an equally nice fender tractor. If the air doesn't work (which is typical) you will have a tough sell.

And yes Jim the roll-guards are filled with sand. I have drilled the bottom and drained the sand out of them before and that is a fun job, especially if the sand has a small amount of moisture in it.
 
I have a '71 4020 with a factory cab with air. I've redone a good part of the system over the years. It actually works pretty well. The downside is that the cab is not as insulated around the cowling as it could be and engine heat can make it's way into the cab. Perhaps with some additional effort I can eliminate or reduce that. For the most part, though, the system works just fine. Mike
 
Thanks Mike. I would think that the cowl area would be a big area for allowing heat and noise in. I still like the looks though.
 
I'll start this off with "I've never had a tractor with a Hinson cab." But we have had 3 tractors with the slightly older Stolper cab, which was used from the factory prior to 1971. Dad bought two of them new in '69 and 70, and so to an impressionable kid growing up in the 70's, they were what I looked up to.

I for one actually liked 'em. And logged a lot of hours in them. They could be noisy, but you were out of the rain, wind, and a lot of the dust and sun.

I'd suggest you make sure your cab mounts are tight, and that nothing is wiggling. Also, a lot of noise comes from the ROPS. Not all were filled with sand... the ones you can buy today most certainly are not. I put two on different open tractors in about 2000, and made both of them louder to operate. They function kind of like a stethascope to the final drive and the transmission. They have a way of magnifying all kinds of gear noise, and resonating it right on either ear.

So an idea: wrap some insulation around those posts. It may help a lot. Or perhaps not, but I'd give it a try.

Good luck.
 
There is a foil backed insulation that is used in hot rods and such that will reduce sound levels significantly. It is self adhesive and easy to install. HTH
 
I took mine off. Had ac, but didn't work. I left the roll bar and a friend came across a canopy for it. Those are noisy too, but not as bad as that cab. There have been a couple falls i wished it was still on there. Gets a little cold, but overall don't regret it.
 
Paul,good talking to you the other day.As to the cab removal it will lower the noise level about 25%.It is a bit of a job and requires about $1000 plus in fenders,rock shaft covers and deck replacement,but you will have a $400+ roll guard to sell or keep plus maybe some windows and doors to sell.K&M makes new interior and also there are cowl covers that help but once the SoundGuard cab was introduced there was no way to reach that level.I bought a really nice 4430 P.S. w/9500 hours from a good home that was an excellent original w/a nice Westendorf loader for $16K .To put a SoundGuard cab on yours would be nice but cost prohibitive.
 
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