OK, I found my operators manual. The bale tension springs are adjustable, however they are pre-set from the factory. Of course, this doesn't take into account any fatigue, so I'd be perfectly willing to give those adjusting nuts a turn or two. Call your local AgCo dealer and see if they still have a service manual around for the the 5500 series Hesston. Chances are there will be a torque adjustment on the nut. I'm 99% certain we don't have a service book around at work, but I'll give a quick look on Monday.
There are stops on the tightener roller though, and these should be adjusted so the belt between the upper and lower drive rollers has about 1.5" of deflection from neutral position. Push on the belts with your thumb and see if you get 1.5" of deflection with good pressure.
Smith,
Your issues with your 5500 series are common, and the biggest reason why I got rid of that plugging, hard starting miserable SOB of a 5510 of mine. I spent two seasons with mine and the day a dealer took it on trade was the happiest day of my life.
That doesn't help you with your issues though, so I'll see if I can pass something along which will help.
1) 5500 series balers like the hay to be PERFECT. If its overdry, try baling in the morning or evenings with dew on the hay. If its overwet, just let it sit.
2) Use diamond top or herringbone belts. I replaced my worn out herringbone belts with roughtops and they simply didn't work well.
3) Start the bale in the middle, and as soon as you get even a little bit of hay in the middle, weave very quickly to get hay onto the edges.
4) Instead of raising ground speed to start the bale, keep your ground speed the same, but reduce PTO speed. This gives the belts more opportunity to grab the hay and start it. This holds true for ALL hard core balers if you're having trouble. Once the bale starts, you can bring your PTO speed back up and reduce gearing to get your ground speed back down.
5) As for plugging, these 5500 series balers have narrow throats and are extremely easy to plug. Even in a 1 ton/acre hay crop, my top speed was around 3.5 mph. Heavier = slower. It was PAINFUL. :lol:
My best advice? If you can afford it, replace the baler. There are piles of cheap, better balers out there just perfect for smaller operators. M&W 5x5 and 5x6 (model number 1800, 55xx or 56xx) enclosed chamber balers are excellent choices. 3650 or 8480 Case IHs. 565 Hesstons. 486 and 4865 New Ideas. Stay away from the older narrow throat, hard core balers like the 5500 series Hesston or the JD 510 (and older. Also watch out for older Case hard core balers. I don't recall the model number, but all they were were rebadged 5500 series Hesstons). If you can afford it, and really want hard core bales, there are better options like the NH 660, 664, or 688 or the JD 535s. On hard core, throat size is important. 6 inch throats aren't acceptable.
Rod