Bobcat Swash Plate Sensor, What Is It And Why Does It Fail?
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- Опубликовано: 26 сен 2024
- Bobcat hydrostatic pump swash plate sensor out of neutral codes due to worn bushing inside of swash plate. What is a swash plate, why does it have a sensor and why does it fail?
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I Started as a Service technician in The Shop at the Oklahoma city Dealership, I just wanna thank you for some nice content to watch. I love your organization and it seems you have a wealth of great knowledge and are very good at sharing your knowledge thank you sir.
Just excellent! Your vids are clear, concise and easy to follow. I did learn quite a lot about taking care of my Bobcat just by binge watching your channel. Thank you.
Great to hear!
CNH uses a couple different version of this pump in their skid steers. The pumps they use have the charge pump integrated into that housing you removed from this pump.
CNH also does not authorize their technicians to take apart these pumps. I have had one pump where the bolts that hold that end housing on broke at about 20 hrs on the machine and it just kept dumping all the oil out the bottom. There was also one where whenever you enabled hydraulics it would just drive one side in circles no matter the input. That one must have had broken servo piston centering springs or something.
A wealth of knowledge. This is called doing the right thing - forwarding your knowledge to others. Thank you!
You are a valuable source of Bobcat knowledge regardless if I will never undertake such a repair. I dont think my 7753 has anything like that. lol
I just love the tempo of your videos clear and easy to follow with little bits of inside knowledge (the spring preload for instance) that's important for us to know. I don't have a bobcat, but have 1000's of hours operating them.....I have an ASV and am sure some of this tech crosses over. Thanks for doing great videos!
Thank you so much for this video, I had a t190 that the left swash plate sensor signal was erratic, ended up pulling the engine and replacing the sensor, reinstalled and did drive calibration and boom problem repaired, thanks for covering this though!!!
Great video! Thanks for taking the time to do it.
Glad it was helpful!
Hello friend, I'm from Chile, can you help me, unfortunately the representation of the Bobcat brand, in my country there is a company that unfortunately does not comply with the technical assistance and the spare parts are not in stock and only for import, in addition of taking 4 weeks each time a spare part is requested, the values you charge us are practically high, we are working to pay for the spare parts. Currently, 2 elements were damaged (swich plate and coil of the High Flow) I am trying to find a spare parts distributor in the US to directly request the spare parts and skip the dealer in my country, is it possible that you can help me??? Bobcat T770
We had issues here in the west coast with the harness causing the fault 9 times out of 10.
Outstanding! Thanks so much for doing such a great job with these videos...making the what-the-hell easier.
Educational video. Is there no way to take the pump out without removing the engine
I purchased a used T630 Sunbelt machine from an auction. Ran great until this problem, about 3100 hours. 7528 right side. I'm going to order the bushing and control arm and have purchased a service manual. The service manual speaks about remote start tool needed to run a calibration. Is there a way to replace these parts without requiring a full calibration? Can you speak a little bit about when a calibration would be required and ways to avoid a calibration if everything was perfect before this error code? Also the pump motor is painted a deep blue color on the case, I'm suspect that it could have already been replaced. Is there a common color for these hydrostatic pumps from the factory? Great video! Thank you.
Thanks for sharing this valuable information about swath plate.
Hello. You should put subtitles in Spanish and you would gain many more followers
I will definitely take this into consideration! Thank you for the advice!
I have an issue where on mine the cradle bearing cage breaks and the swash plate gets stucked. The bearing cage is some kind of plastic. It's a HST pump on a D31PX-21.
Great explainer video. Thanks for sharing.
You never say what the swash plate controls? Does it control the tracks? I have one that the tracks work for about 30 seconds, then quits. All of the other hydraulics still work, just not the drive. Since it moves for a short period of time, i know the motors are working, it’s an electrical problem. No codes. ZHS 430 Fast track.
My 2016 770 SJC rig is throwing the 7527 drive left Swash plate out of position. Recommend solution
Man I just put a motor in my company's t770 and now I'm getting the code for left swash plate out of position. I really hope it's damaged wiring or sensor. Not trying to pull that motor out again
You’re a wealth of knowledge. We just spent 40k on a. Low hour a770 and it’s throwing a code for each side 7527 and 7528. Do you think if it’s throwing both it’s the controller or both bushings? Should I replace all 3 while I have the engine out. Pretty pissed about this ngl, but it is what it is
I would not think both bushings are bad at the same time. I also don't think it would be a controller issue. Have you checked the main hydrostatic filter for contamination?
@@tetradgroup I ordered every filter for it Friday so I’m going to throw them in Monday. It did seem weird, just shuts off randomly while I got guys driving it down the road haha
@@tetradgroup what I can tell you is the hydro oul is black and I can’t see through the filter. So I’m draining out as much as I can and putting fresh in.
That being said, I’m trying to change the fan gearbox filter, that’s not an issue. But where the heck do I fill it back up at?
Let's say a guy wanted to put high flow on his standard flow t630. The main component would be a triple gear pump swap obviously. How would this guy (me) go about it without taking it in? I know it will need a bigger cooler. Any other insight? Thanks.
I have a T-450 2016 D7528 error code where is runs and shuts down after running for a while. Says "shutdown" starts right back up but dies a lot once things heat up. Dealers backed up. Pump calibration first, if bad replace the bushing? Leave the sensor? Thanks for the video
Great Vid
Can I just unplug the sensor so I can finish this job? What will I lose by leaving it unplugged?
Awesome video, thank you!!!
My skid steer s770 stuck going forward to the right as soon as I turn it on. Seems like its stuck on one side . I unplugged the electric joysticks but still goes forward as soon as I turn it on. Any idea what it could be ? Im not getting any codes either . Ty in advance.
My S750 gives a d7527 code and shuts down multiple times while going forward but has never done it backing up. Would it still be the bushing?
Im having issues with said pump. Bobcat says i need to pull the engine to pull the hydrostatic pump. Is that true. Doesnt look like id have to
Great video again, Thanks 😊
That was very interesting to watch!!! Thx for that. BTW, I asked my Bobcat Service Tech about the hydro oils, and he said they ARE compatible to mix. So, yeah. Thought you would want to know. Again, thanks for doing your videos!! I learn quite a bit!!!
Thank you very much. I will be doing an update video on the oils soon. The Bobcat fluid engineer contacted me and wants to share all the latest information on the new Hydraulic oils.
Why would they use plastic? Why not something more durable like bronze, stainless steel, titanium, etc?
So whats considered thenleft and right side? Is it with cab up looking at machine left is left and right is right?? Or would it be from an operators point of view. As if in operator seat ? If this makes sense 😅😅😅
@@fonickel6634 sitting in seat, drivers side is left side
Nice trick with the rope... I usually use a rubber band.
Great tip!
Thank you Very helpful
Do you ever see the angle sensor leak? I have a t590 leaking at the swash plate sensor or input shaft.
Thaks... a lots... you are The best
Help me please My bobcat tl 35.70 when I started my engine the sound sensor always ringing,, before not like that
Great video bro
That sucks!!!! Not sure on the failure rate but that has to be a expensive repair, 3k ?
Hi I have a Bobcat T 590 track loader it is a 2019 it has an active warning code d7540 drive left swash plate out of range low , any advise for me ?
On a R series bobcat it's most likely the sensor, on a M series and below it's most likely going to be the plastic bushing
This is true
Well done
Hi. I have a bobcat S650 from 2018. Error D7540 Are these sensors emergency or rather the wiring harness? Can you replace the right sensor with the left one, or is it enough to swap the plugs and another error will appear?
Hoping you have a minute for some advice. Just bought a 2016 T550 at auction (2,200 hrs) and it has code D7528 (rt swash plate out of position). I just did a hydraulic flush bc the fluid looked terrible. The machine will run/drive for a bit but it seems to almost always shut down and throw the code when backing up on wobbly terrain. I can run it up and down my driveway 200 yards long and it seems ok but can consistently get it to shut down if I go off my drive and then reverse back on to it as I turn around (there's a couple inch height difference at the edge of the drive).
Not sure if there are any other trouble shooting I can do before starting down the road of pulling the engine and pump? I greatly appreciate your time and advice!
You can try a pump calibration and check wiring but I wouldn't get my hopes up
@@tetradgroup, THANKS! I figured as much. I got the service records for the machine and the prior owner, Sunbelt, did a pump calibration but no luck.
Thanks again - bit the bullet and got the engine pulled out today. To get the pump out, I'm guessing it's easiest to just disconnect the hydraulic lines and hoses, electrical connectors, and then pull the pump out in tack with the cast iron pulley housing (or whatever that's called) that has the 3rd engine mount?
It didn't look like it had any mounts itself - just was supported by being attached to the cast iron pulley housing. Is that right?
ruclips.net/user/shorts6m3ySHVZx4w?feature=share
@marshallbell9354 yes that's correct. Pull the housing so you can remove pulley from pump shaft the pump from housing. I'm impressed you got it out that quick. You can mount engine to pulley housing and put it all back in as an assembly.
@@tetradgroup THANK YOU AGAIN!!!
I'm working on a bobcat loader T250 and I am having a problem with getting 2 swash plate sensor codes, I removed the engine and checked for movement in the swash plate sensor actuators and found no problem with either one of them so I replaced both sensors and centered it up pretty good and put it back together but still getting the same codes so I checked the voltages and I can't get the voltages down below 3 volts no matter how far I adjust it with the screws in it indicating that the swash plates really are out of neutral. Do you know how to adjust the swash plates so they are really in the neutral position. This does have the solenoids that controls the speed. The bobcat won't even crank over or turn on the fuel solenoid. could this problem with the swash plates out of neutral, cause it not to crank? This is a job where somebody else changed the engine and I had to finish putting it back together and it's been sitting for several years and I had to repair numerous electrical problems with it to get it this far so I don't know what other problems there might be with the unit but I have been told that the swash plates out of neutral could keep it from cranking but I don't know if it's true or not any help would be appreciated.
Thanks!
Thank you!
Your videos have been very helpful. I own 4 different Bobcat machines. I have odd question tho, what brand is the mic you are using connected to your shirt?
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@@tetradgroup Thank you! Keep up the good work on the channel, with the quality content you are providing, your channel will grow very quickly. I'm currently having issue with my 2021 MT100 meter not working, do you know what that could be, or there a cable disconnected?
@@KennysTreeRemoval I'm would definitely check the connection on the meter first. If the meter is bad I would think warranty would cover it.
I have a 2016 T-650. After throwing the swash plate code, the dealer changed the bushing. That didn’t work. They have changed the sensors. That didn’t work. They changed the wiring harness to the sensors. After 35 min, that didn’t work. Dealer and bobcat are throwing up their arms at this point. Machine only has 1400 hrs. Any suggestions on what can be done next? Pump calibration was fine. They want to put an entire new pump in now. Curious on your thoughts? Thanks for much!!
@@jasonluneau4630 depends on the code and symptoms.
@@tetradgroup D7528 code, it will go into shut down mode.
@@jasonluneau4630 did they replace the sensor? Maybe swap sensors from left to right and see if code changes
@@tetradgroup yep new sensor and after that didn’t work we swapped sensors
@jasonluneau4630 I'd have to monitor it on the computer to see what is actually happening. Sounds like either the pump or the controller at this point.
where do I find the bushing? local bobcat dealer is saying its not available.
Hopefully you found one, I know LPS also carries them.
Very good video and detailed explanations.
Thank you for that,
Artur
I have this exact issue. currently I have the swashplaye sensors unplugged so that it will run in limp mode. Can the pump be pulled from under the cab or does the engine have to be removed. Bobcat quoted me somewhere around 5000 to replace the bushing
I have seen it pulled from the front but I personally always pull the engine skid, easier for me.
@@tetradgroup I don't have an engine hoist was trying to avoid purchasing one even if I do it would still be cheaper than taking it to bobcat
@@jonathoncain2300 absolutely, even with hoist you will be around $600 for parts, if that.
I just got code D7527 on a brand new S450 skidsteer... what is the most likely cause of a swash plate error on a new machine?
It's probably a sensor. Some of the newer machines had sensor issues.
How much does it cost to change the plastic bushings? and where can i order them
Dealer would be between $3K - $4K but parts are available through any Bobcat dealer or online.
@@tetradgroup tanks
Where are u located at. Having problem2022 bobcat t770
Utah
Ok thats bobcat can’t figure out what’s wrong my machine code came up hydraulic filters clogged then it says swash code and it still doesn’t move. They’re sending the fluid out to get analyze.
謝謝！
Thank you so much!
Thanks!