I'm not specifically qualified to address a Shennui 354, so I don't know if it splits into 3 sections or 4 sections. Three sections would be engine/bell housing & mid-connect box/transmission & rear diff. Four sections would be engine/bell housing/mid-connect box/transmission & rear diff. The PTO shaft and main drive shaft are typically nested in the bell housing and mid-connect box; that is, the PTO shaft rotates independently inside the main drive shaft. But they don't run all the way through to the rear end. Whether 3 sections or 4, the two shafts remain nested as far as the output of the mid-connect. They are then split into separate shafts inside the transmission.
If a 3 segment tractor, you can put the bell housing/midconnect box on the bench to replace the inner (PTO) shaft. If it's a 4 segment tractor, you have to determine if the break is in the bell housing or in the mid-connect. Once determined, that segment goes on the bench to replace the inner shaft. If the nested segment(s) are unbroken, you're facing a bigger problem. That means going into the transmission & rear differential segment from the top. That said, you don't have to go very deep. The PTO shaft is positioned higher in the housing than is the main drive shaft
//greg//
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For farmers, landscapers and those in construction, the tractor can be a vital piece of equipment. Like most vehicles, tractors sometimes need maintenance or repairs &#; including the replacement of parts.
When these issues occur, it&#;s important to be sure that you make the right choice. Choosing the wrong part or a bad quality part can leave your tractor out of order and can cost you serious cash. Remember, there are plenty of people who literally can NOT earn an income without their tractor being functional!
Let&#;s take a look at the 6 factors you should consider before buying a part.
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This is an important consideration. If your tractor suffers a breakdown or needs a part replacing for some other reason, get it properly checked and make sure the part you&#;re looking to buy is the part you actually need. There&#;s already a lot of horror stories out there about owners or mechanics who replace the wrong parts and the hassle this causes. Get it right first time and you won&#;t waste any cash on unneeded parts or labor. Sometimes the fault is only in one area of a &#;part&#;, meaning you can replace just the one thing instead of the whole part. For example, spending on a replacement reflector is much cheaper than buying an entire new light unit.
This applies to upgrades as well, if you&#;re looking to add an extra piece of machinery or upgrade a part, make sure you&#;re making the correct choice AND that you choose the right part. Do your research and talk to some mechanics if needed. Remember it isn&#;t only cash you could save, but time too.
Think carefully about how long you will need the part for and how any wear or tear might affect it. There are times when a part in worse condition will still be usable for your needs, so you can save some money by going for a used part with a little more wear. There are other times when you&#;d get much better value for money from a new part though, in these cases it&#;s better to spend a little more and get a new part in great condition.
Like a lot of other mechanical parts, the brand matters when it comes to tractors. Some brands are known for reliability or quality above others. Using the same manufacturer as your tractor brand can help with compatibility too,
Cost is important to most people. It can work against the other factors you should consider though. There are people who&#;ve bought cheaper parts just because of their budget and have had to either go with an older/more worn part, or a lower quality one. You have to consider all the factors and see which are most important to your situation before making a choice.
The transmission type of your tractor will affect which parts are compatible, so make sure you know what transmission yours uses and which parts are compatible.
Most tractors use a PTO (power take-off) shaft. This is what provides power to attached machinery. Remember that different tractors have the shaft in different locations. There are also different types of power required by different attachments, such as hydraulic or electronic. Check where your PTO shaft is and what it can do before spending on any additional parts.
Contact us to discuss your requirements of SHENNIU Tractor Spare Parts. Our experienced sales team can help you identify the options that best suit your needs.