Somedevildawg; I thought a more detailed explanation of your problems might be of some help. Low voltage can manifest itself in various ways on these balers. The most common I have run into is the duckbill does not return to the home position and thus the knife is not activated to cut the net. If the knife did activate it would hit the duckbill. What happens is the duckbill motor cannot overcome the tension being applied to the net roll brake. As the duckbill returns to the home position the duckbill must pull additional net from the roll. What you should see on the operators panel, after the audible alarm sounds, is a symbol of the duckbill. In the upper left corner will be a code number. You can look the codes up in the bale command operators manual. The problem with the code that is displayed is it does not indicate what you need to do in order to get back to baling. If you turn the operator’s panel off and back on a different code will be displayed indicating the duckbill is not in the home position. Now you know in order to get the duckbill back to the home position you need to use the up wrap button on the operator’s panel.
If the update being done is one from NH and not one the dealer is doing on his own in an attempt to help you, then a heavier return spring is being installed on the right side of the duckbill so more force is applied to return the duckbill. Along with the tractor power cord and the broadening of the amperage draw you should not experience this problem. I have updated some balers that were not included in the program, because they did not manifest the problem, with just the power cord and software upgrade and have not seen where the heavier spring was needed, at least so far.
I want to give you a possible explanation of why you are not seeing an error when the net is not being cut. I have rode with numerous operators over the years and the operation of stopping, wrapping and ejection flow naturally after you have operated a baler for an extended period of time. The full bale alarm sounds, clutch is depressed or shuttle lever moved to neutral, right hand moves to remote lever, sitting in seat thinking about a million different things waiting for the alarm to sound indicating the bale is ready for ejection, alarm sounds and right hand automatically on it’ own opens the tailgate and ejects the bale. But wait, the alarm did sound but can you tell me if the alarm was a short beep or a long tone before the hand ejected the bale. When a bale is successfully completed you will hear a long tone, if you hear beep, beep, beep then there is an error. Most people I have seen do not realize the difference since the sound is the same only the length of time and repeating is different. They hear the alarm an open the tailgate automatically.
I have not seen a net knife motor stall but it is possible if there is binding in the knife frame. This did occur on some 2014 balers, first production of the roll belts balers, and is something I check on predelivery. On the early models the pivot straps that are welded to the knife support were welded extra heavy in spots. This weld could rub on the side sheet by the knife motor. The side sheet is radius so the net knife can rotate. The weld would rub on this radius. Another possible drag is the link between the knife motor and the knife. An arm is attached to the motor on one end and a pin is attached at the other end. The pin is 90 degrees to the arm and protrudes through the knife pivot plate. Some pins came loose and moved towards the baler side sheet causing an additional load on the knife motor. Some tolerance buildup could also cause the pin to extend farther and rub the side sheet. This can be checked visually and if the pin is rubbing the side sheet then grind the pin to gain clearance. The motor is bolted to the side frame with two bolts. Remove the spring attached to the knife assy and remove the two bolts to remove the motor. Now you can rotate the knife by hand to see if there is any binding during the knife’s rotation.
It is possible for the knife to stall at the full up position. If the system does not see the net being cut when it expects the net to be cut, it will cut power to the motor and not return the knife to the home position. This usually occurs when you lose tension on the net, but it could also be caused by crop build up on the knife so the knife cannot cut the net. I have not checked the newest software if this has changed.
Speaking of software. Update 3 for the NH dealers EST has two additional options included for the roll belt balers that can be used or not used as needed. The first is the ability to stop the duckbill in a precut position, like the BRs. This is to help the net spread out and eliminate wear to the duckbill. The second is a knife shake feature which I assume is to shake material off the knife if it should build up on the knife. I have not seen this problem, but evidently it is a problem in some crops, Cornstalks come to mind where this might be useful.
While I hate to see balers get more complicated with controllers and can bus systems, but the positive of the new systems is you can add features to a baler or correct problems by changing the software.
Insufficient net being applied is strange. I have not seen it and I could not find any information about it. If an error was generated then it is possible the net just tore. This also goes back to my earlier comments on how an error alarm can occur and the operator not realize it. Since the duckbill goes back to the home position after insertion and the net knife never left it’s home position there will not be an error shown on the operator’s panel after the bale has been ejected and the tailgate closed. A net pull test needs to be done to see how much tension is being applied to the net roll brake. The net pull test is supposed to be done by your dealer as part of the update being done to your baler. If no error was generated then I would recalibrate the empty bale chamber. This information is in the bale command operators manual. If you cannot find the information I can look it up for you. Also included in the NH update is a different brake pad and brake disc so a more consistent brake tension can be maintained. The brake pad is the same, the disc is the same except the braking surface no longer has the plating to prevent rust. The surface is also machined.so the brake disc turns true. Necessary? I don't know, I have not seen an issue with the original parts.
With the addition of the power cord and the software upgrade there is a need to replace one of the fuses in the harness which remains with the tractor. The harness has two fuses, a 5A and a 25A. The 25A needs to be replaced with a 30A fuse. This should be supplied to you in the update being done.
The system stores most of the fault codes generated. To access these codes, press the program/enter button, use the down arrow button to item 5. There will be an exclamation point along with the number 5. Once item 5 is highlighted press the program/enter key to open the fault code history. You will see the codes that have been generate, how many times and the bale count of the last time that code was generated. This might give some insight if a fault code was generated when the net was not cut.
The only other update not already mentioned is the addition of a different baffle on the duckbill. Again, I don't know if it is necessary. Different areas of the country experience different problems form other regions so when updates come out many bases are covered some of which will deal with problems you have not experienced. What I have seen is the power cord and software updates will have the most effect of all the updates being done.
Somedevildawg, some information you might find useful
0 commentaires:
Enregistrer un commentaire