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-NH Hayliner 273- pto question

F

fighting fish

New User
Hello, I'm new to the boards here and new to farming in general.

I have a NH Hayliner 273 that I've been struggling to get bailing properly. I have ordered the manual, but was wondering if anyone could trouble shoot this for me. Excuse me if I don't know the proper terms for the different parts. Okay, here goes...

Where the large flywheel connects to the haybailers drive shaft, it is held on by one single bolt with a nut. I have been snapping that bolt, especially when turning corners. The problem seems to be a gap between the flywheel and the driveshaft connection. My question is, what part am I missing? Is there a large spacer that goes on the outside of the flywheel or something that goes inside the flywheel?
Thanks for viewing! - fighting fish

inks to pics: (sorry i'm too new to post properly!)
https://photos.yesterdaystractors.com/gallery/iphotos/i7071.jpg
https://photos.yesterdaystractors.com/gallery/iphotos/i7072.jpg
https://photos.yesterdaystractors.com/gallery/iphotos/i7073.jpg
https://photos.yesterdaystractors.com/gallery/iphotos/i7074.jpg
 

It looks like the bushing behind the flywheel is worn and needs to be replaced. That should help with the broken shear bolts.

How tight are the universal joint in the pto shaft?

Jim
 
I've got a 273, but I've never really paid any attention to how much space is behind the flywheel. It'll be tomorrow eveing before I can take a look, but I'll do so and see how well it matches yours. I do know the grease fitting there on the drive shaft is suppose to be real tight, and the manual specify's not to "force" to much grease into it. And mine is still very tight, usually one, maybe two squirts of grease does it.

Is the flywheel itself loose?? If so this could be causing metal fatigue on the shear bolts, causing them to break. Also make sure you are useing the correct shearbolt. Make sure its tight and not loose as well.

Since you said you were new to farming as well, I'd also tell you to be sure your not overfeeding the baler. A 273 is great baler, and you can bale a lot of hay with one. But they are no where near as high a capicty machine as some these newer balers out. Also make sure the hay is good and dry, mine hates wet stuff. Also, if your bales are ragged, it's time to sharpen the bale chamber knives. Just a few quick pointers, hope it helps some.

Casey
 
Also and important, are you using the factory
shear pins, are you running the baler at the
proper strokes per minute(just guessing-73 stroke
per minute, Is the pto standard adjusted up so pto close to level,Does the long portion of the
pto slide back and forth easily and most import.
Is the distance from the end of your tractor pto
shaft to the center attaching hole of the drawbar
at 14", did you pivot the main baler portion on
the center hitch support to bring the pickup way
out to the right? Chuck
 
Just from looking at the pictures, It looks like the bushing in the flywheel is worn out or missing.Get a new shear bolt sleeve as Messicks call it Then buy a bag of shear bolts.
The flywheel is held on by the bolt in the middle. Before you put the new sleeve and shear bolt in try to wiggle the flywheel on the shaft if it"s to loose, there is a sleeve for that to. Also, the picture looks like the seal on the shaft is bad which could be caused by a bad bearing in the front of the gearbox. Check that too.
Messicks
 
The only time I broke that shear bolt on the flywheel was when the needles were slipping forward, and the plunger stop was activating. Something may be out of time. Page 38 of the manual-troubleshooting:
Problem:Shearing flywheel bolts
Possible causes: baling too heavy
shear bolt nut loose
improper needle timing
needle latch out of adjustment
dull knives
excessive clearance between knives
worn knotter clutch gear
worn or improperly adjusted
knotter/twister brake
 
You are not missing a part. You need to tighten the shear bolt enough to move the flywheel in contact with the arm overrun. There should be no space.
 
Thanks for all the speedy replies!
There were a lot of very good suggestions.

I think that the shaft is pulled out too far. Perhaps this is caused by a bad bearing or seal in the gearbox. I know there is definetely a gearbox issue, because the sae90 oil is leaking into the grease fitting on the front of the gearbox. Perhaps when something broke in the gearbox it caused the shaft to pull out a bit.
 
another thing , proper rpm on pto is important to cut hay properly,are you baling as your turning?if you slow down pto its harder for baler to cut and compress hay which may be part of your problem.
 
thanks jack,
i am slowing down through the turns. i probably broke something by not operating correctly. gonna have to drain the gearbox i guess, then trouble shoot seals and bearings.
 
https://webparts.pvassociates.net/cnh/webparts/main.php
This sight can help you if you think your missing a part. Hollands part online. I use it if I dont have my book with me. Accoring to the diagram theres a washer, spacer, washer in that order between the flywheel and gearbox. But it seems you may be loosing fluid from your gearbox. Bad seal. good luck
 

Hi FF, I see that you are slowing down for the turns! May I make a suggestion? Okay, I will anyway! Do NOT throttle back on turns! very important to maintain PTO speed of 540 RPM! If you're not comfortable with the travel speed when turning, it is better to shift down a gear, but maintain correct throttle setting! same advise applies to heavy spots in the windrow! Remember, you want to be putting at least 15 strokes in each bale, and more doesn't hurt! Less strokes makes for uneven length bales and banana bales! the metering wheel measures the bale length MINUS the last stroke, and the next bale is measured INCLUDING the last stroke of the bale prior, thus the size of the last stroke determines the length of the bale. Long story short, DON'T crowd your baler! hope this helps!
 
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