Will the Bucket even WORK after 20+ Years? ~ Part 4 ~ 1950's Caterpillar TraxCavator
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- เผยแพร่เมื่อ 26 ส.ค. 2024
- "Old Red," my 1956 Caterpillar Traxcavator still hasn't had the Bucket / Loader arm working AT ALL. So it's time to work on the hydraulics so we can actually USE this machine for what it was designed to do... WORK!
In this video we will:
- Repair a wobbly track
- Fixing a loose upper track roller
- Preparing the Hydraulic Cylinders
- Investigating the Hydraulic System
- Releasing Monarch Butterflies into the WILD!
- Cutting up a fallen tree with a chainsaw
- Taking "Old Red" for a Drive
- Operating the Bucket & Loader arm for the first time in 20+
- BLOWING a Hydraulic hose & replacing it
- & MORE
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Check out the FULL playlist for the Caterpillar 955 TraxCavator Here:
• 1950's CATERPILLAR 955...
PART 1
Will it START?!? ~ 1950's Caterpillar TraxCavator ~ Part 1 ~ Starting the Pony Motor!
• Will the PONY Motor ST...
PART 2
Will the DIESEL Start & DRIVE? ~ 1950's Caterpillar TraxCavator ~ Part 2 ~ Forgotten for 20+ YEARS
• Will the DIESEL Start ...
PART 3
IT LEAKS & Runs HOT! ~ 1950's Caterpillar TraxCavator ~ Part 3 ~ Restoring the Cooling System
• The Radiator's ALL CRA...
DISCOVERY Of the Caterpillar 955 TraxCavator
Rescuing Old Iron Episode 4 ~ Red's Farm:
• 1950's CATERPILLAR 955...
If you haven't seen the video where we DISCOVERED this Old Beast, then you should also check that one out as well! You'll be able to see exactly where this old beast has been living for all these years!
Throughout this project we'll pay tribute to it's previous owner Red & those before him that truly knew how to maintain and operate such a cool old machine like this!
I'll show you that OLD machines CAN be a LOT of work, EXTREMELY frustrating at times, but once running properly, an INCREDIBLE amount of fun!!
I recently discovered this 60+ year old Caterpillar Traxcavator at an old chicken farm, and the owners have honored me with the privilege of bringing it back to life, and then putting it BACK TO WORK!
Join me as I take you along on my journey through the many ups and downs of this project! I feel honored to be taking on this project, and I truly hope you enjoy the process and progress as we get this OLD CAT to ROAR once again
Please enjoy! I know I did!
~
If you have any suggestions, questions, or comments, please leave them below!
Thanks for stopping by, I truly appreciate your support!
#HydraulicProblems #CaterpillarTraxCavator #BackWoodsRepairs
You and Andrew Camarata are the guys who make things work.
That's kind of an insult to be put in the same category as "Andrew the hack"...
@@Flying0Dismount What?
@@kareem8533 Did you hear the comment in the video about doing what you have to do to get things going but then going back and doing it right? My respect went way up with that... Yes, Andrew can do a lot, but he just half asses everything he does vs doing it right.. Andrew would be the guy who got the machine going with all those different types of clamps..
@@Flying0Dismount I must have missed that one. Also, Andrew is not the best in the world, I never said that, I have seen him doing things that I would have done differently, but I still have a great respect for him, his dedication etc. Ok, try to build a castle out of containers.
Now, Now.... I have a lot of respect for Andrew, I wouldn't call him a hack by ANY means! He gets things done, mostly alone, & when most other people wouldn't even try!
I love that they notched the barn siding just enough for the cat’s exhaust to clear. 😆
I saw that too. Made me lol
They needed to notch for the operator's head too! Makes me nervous every time!
You notice that they cut out the roof trusses for the loader to fit too.
That great old girl hasn't seen this level of care and love in many years. Well done
Weld up the worn place on the roller frame and grind it smoothe first
The oldest Cat machine we have is a '67 D7E so I'm certainly no expert, but my understanding is that the shims on the track frame were originally installed when everything was brand new, rust free and tight. As the plates and frame wore in, you could remove a shim and tighten it back up. Obviously Old Red is way beyond needing shims at this point, plus those shims were so ratty they weren't doing anything for you anyway. As long as the plates and track frame sit relatively snug against one another (not screaming tight, but snug - there needs to be a very slight gap so that the idler can extend smoothly when you tighten the tracks) and the plate isn't canted outward at the bottom, you're good.
As for the hydraulics, its a suction type setup. Dirty oil comes in from the outside of the housing and gets pulled inward toward the middle, passes though the filter and exits through the hole you were feeling in the bottom of the casing. The spring loaded plug on the top insert is just a bypass valve. It stays closed under normal operating pressure, but if the filter becomes clogged the extra pressure will overcome the spring, force the plug open and the system will bypass the filter altogether. It keeps oil flowing so the pump doesn't cavitate and burn up. The big spring is in there to hold the bypass valve to the filter, and help press the filter onto the bottom of the housing so that oil only goes where it's intended to.
Great work so far, man. This has been really entertaining! Keep it up. 😎
my oldest CAT machine is a 1973/1974 CATerpillar T40B forklift.
The shirt and suspenders for the drive was a nice touch
I don’t ever comment on videos, but this playlist has become one of my favorites. Thank you!
I enjoy the vids. I am an old man and can't do any of the stuff anymore but I enjoy watching the vids and seeing you save the old machines that are still viable. And, I really like seeing you add more beauty to the world by saving the butterflies. Keep it up, all of it.
Aside from your native talent, your a priori knowledge, and your iron will....you possess one constant that is the hallmark of a rare individual of great spirit.....perseverance. That is the strength that keeps you going and makes your work and what you enjoy from life worth living. Best wishes, stay healthy....and as always....hug the Weims for me.
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It's great to see somebody fixing this Vintage American machinery instead of throwing it in the scrap yard. Once this equipment is polished up I believe it will last you a long time American-made is always quality. It is definitely built to last God Bless America. PS I can't believe anybody would give a thumbs down to this video they must be very negative in their life well that's their problem.
Got recommended the first video and now I'm along for the ride.
Me too! I’ve watched a bunch of his standard “Restoration” videos with the silent (words on screen) narration. So these videos were the first time I’ve fully seen & heard him. Oddly enough I clicked on a “Hand Tool Rescue” video yesterday of an old early 1900’s (I think) mechanical tree cutting saw and he also narrated those 2 videos because of how intricate the unit was. But that was the first time I heard _his voice_ too.
Those are the 2 channels I’ve watched the most often for all the restoration type videos, aside from the king of Restoration videos (IMHO): My Mechanics - “I Make A New One” 👍
There’s a few others I’ve happened upon and watched as well, such as “TysyTube [something]” and I think “Black Beard [something or other]” My Tiny Workshop, LADB Restorations, and others...
But anyway; this series with the old CAT/Traxcavator has been really interesting.
I’m from the mid 40s, & I’ve been running some of those old machines when they were not old, but most machines are needed back in action ASAP, so they never were given tender loving care, because of the time factor. It sure is enjoyable to see repairs done right, by someone that cares about what he’s doing. That’s how you get as good as you’re capable. And you are very capable, thanks for the knowledge & entertainment! Don’t get hurt! We don’t do BandAids, we need hospitals, when we get hurt! 👍🏻😊
Your attention to detail does my heart good. It kind of reminds me of my dad who was a perfectionist. I hope you pass on that work ethic to your sons.
Finally a real caterpillar! It only took 4 videos!
This reminds me why I was in demolition and not repairs. . . When I took something apart it stayed apart. . . Just watching you work in all those confined spaces sends my blood pressure sky rocketing! Fun to watch but not for me. . . In the words of Clint Eastwood, "A man has got to know his limitations. . . "
My brother had to pull a gas pipe under the floor of a house, very confined space. Turns out his belt caught on a floor joist and he panicked, after a exciting while and a unplanned sleep he came to to discover he was unhooked.
Never went under a floor again 😁
Fun to watch! Imagine being in the track motor pool during the war and following all the tanks right at the front, and doing all this stuff out in the field 24/7. Belton Y. Cooper's “Death Traps” is a great book about tanks and their support units during the war.
My Pops and Grampa worked and repaired heavy equipment.... I lost them both when I was 8...these last couple vlogs remind me of them, Thank you❤
I can’t thank you enough for this series of videos on a Cat 955 Loader! In the Post WWII era my father was a builder in central NJ. He had a D-6 and a 955 for site clearing. I remember riding with our operator in 1949 as he stripped topsoil from an old farm. Keep up the quest. I look forward to your next video! Thanks
Your hydraulic oil looks like it's emulsified with water. Also, that valve in the center of the filter top is most likely a bypass. People were prone to not change those filters often. They could become clogged and in order to save the pump and system, the oil would bypass the filter thru that valve. Also, if the oil got really thick from being very cold, the bypass would kick in because the heavy cold oil wouldn't pass through the filter until it gets warm.
This is SO GOOD!! Thank you for your attention to detail. And for not being a weirdo. Might sound weird but that actually keeps me from watching a lot of videos. Thank you for your in depth repairs. Carry on.
I admire your mechanical talents and energy.
Most of the bolts will be frozen. All the rubber fittings will be dry rotted. One headache after another.
Then again you will have a very nice piece of equipment when you are done.
Best luck
Frank
Get used to running a tap through every bolt hole when you take a bolt out. You'll be amazed by how much a difference it'll make for you putting it back together
also, run the bolts thru a die.
When the lift arms are fully extended and the bucket is fully rolled to the dump position, the mechanical advantage of dump stroke actually 'cams over' and binds. You can see this occur when the bucket literally 'falls over' the leverage point. You were trying to pull it back over the cam over position when the hose popped. To release the cam over binding, simply drop the lift arms about 1 foot and this will correct the cam over condition (correct the leverage). Be very careful with these style loaders at full lift arm extension. I snapped the bell crank (curved piece the bucket cylinder pushes); expensive way to learn about this cam over issue! I was hollering stop! STOP! Wait! ...but you did not hear me. Good news is hose and fluid is much cheaper than the bell crank! Have a great day, and have some fun with it too! If you plan to keep and run this machine, weigh the cost of constantly replacing hoses and spilled hydraulic fluid. Seek out a reputable hydraulic repair shop for your hose replacements.
^^^ wot he said - the linkage is going over-centre. If you want it to be fool-proof you could weld a couple of stops suitably positioned to restrict that last few inches of movement, but as long as you’re aware of the problem just dropping the lift arms a bit before curling the bucket avoids the problem.
True that over center action on my old 966 loader also
Also to add to that is the hoses come apart internally and those chucks of rubber can destroy a pump as well.
All of the above comments are correct and good advice. It should also be noted that the machine would not "cam over" when new and therefore repair and or replacement of all the pins and bushings (in the exact correct location) would remove the issue all together. While many of these projects are expensive, doing them "all at once" can save massive amounts of cash. For example you can order a hose kit which includes all the hoses pre-fabricated and ready to install. Hundreds of dollars saved over the cost of each individual hose and they are built to factory spec, not some dude with a tape measure guessing at the overall cut length. The bushings and pins are the same deal. The correct guy for the job shows up with all the correct hardened chromed pins, line boars the holes in the right place, presses in new bushings, re-line boars the holes ... viola! There is even a super cool MIG welder that auto-rotates through a bore if required. When the bill seems high, just price a new track loader and you will feel better.
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@@srp01983 und ¹
Loved the excitement of the children's voices.
I appreciate the safety measures you take when you are working on the track, everyone in TH-cam watching this take notes and follow this example
Those chrysalises produce the "Monarch Butterflies". Beautiful creatures. We have them in New Zealand, and I had some in my parents' home garden many years ago.
Cant wait for the pressure wash video
It's really very satisfying to watch you do maintenance to things neglected for so many years. Thanks for that!
Old Red has made your channel the my favorite on TH-cam.
'Traxcavators' used to be on every jobsite. We ran 977L up until the mid 90s, then skid steers got bigger and stronger and excavators were everywhere.
It amazes me, some Farmers absolutely baby their equipment , while other just ride 'em hard, and do the bare minimum (if that) on maintenance.
I agree with you to some extent but I know that on many of our family farms nothing was bought new and could have several previous owners. Spare parts either didn't exist or were too expensive. On top of that were insane time constraints so you just kept equipment moving cause there was always something else that had to be done. . .
Im guilty of the farmer fix lol. A connection piece between the hydraulic pump and engine on my old tractor broke. I just welded the connection piece to the pump and engine and it has worked fine.
My heart sank when I saw that fluid on the floor !! It will be ok you will get it look how far you have come !! Don't give up !! Ol red would be proud !! Tackle it one problem at a time you are doing excellent work !! You are very thorough with everything you have done you will get it I have faith in you !!👍👍🔩🔨🔧
Tim from Canada thank you very much for your video you were explaining what you were doing which is most helpful in this video. The things you were explaining helps oats it is nice to see what you’re working on and then how it is fixed or can be fixed or can be modified to be fixed. Lotta videos on here from other people that do not explain nothing on what they are doing this video are yours explains a lot very helpful Great work
I can’t believe I’m watching this and hanging out for more. Can’t wait for the next vid. Love it. 🇦🇺🚜
Hey , I'm about as old as that cat .
When things get old, they wear out.
That's for equipment and people.
But the main difference is, you can rebuild Old Red, but I can't be rebuilt, so I'm screwed. Lol.
Great job 👍👍👌
😄
Over 20 years ago a team of 4 of us had 3 weeks to completely strip and repair one of these after it had been rolled numerous times down a slope after the operator had just stepped off it. It took us one week working 12 hour plus days to strip it down to it's component parts. Another week of crack testing and getting in replacement parts, then a week and a half of reassembling and testing everything. We returned it to the worksite late but in a near new condition. I understand it is still working for its living. Cats are built like proverbial Brick outhouse. Strong as
I've run a number of CAT wheel loaders with over 30,000 hours, and one or two with 40,000! They will last and last if you take good care of them.
A very impressive undertaking. I came away thinking they sure knew how to build things to last, back in those days. Americans know how to build things! Keep up your excellent work!
I AM A MASTER MECHANIC WITH 40 YEARS EXPERIENCE, I NEVER WORK ON ANY EQUIPMENT WITHOUT HAVING MANUAL S, I AM ALSO A&P WITH AN IA ON MY LICENSE, WHY DO YOU NOT HAVE A FEW BOOKS TO HELP???
BUT YOU ARE A SUPER FINE MECHANICAL WIZARD. I TAKE MY HAT OFF TO YOU, SUPER GOOD JOB ON THAT MACHINE!!!
the Monarchs are absolutely cool - thanks for showing that. beautiful stuff.
Thanks for the butterfly show!
Good sign pump has pressure, an the spring is the pressure relief for the filter.that is so cool.
That is a pressure by pass if filter gets plugged. No spinning any thing. Rust means and by color of oil, water is in system.
If you reverse both side plates from side to side you will have the access hole in the proper place. I believe the plates are to be shimmed to a snug, but not tight fit. Refer to service manual for clearance specs. I have seen these built up with welding. You are correct in repairing the idler bearing lube fitting as constant lubrication is a must. Very nice old Cat keep up the good videos.
Best Saga, i've ever looking!
Regards from Germany.
Very smart using cribbing next to jack.
It's amazing how you can figure all this stuff out! Awesome job!
You really , really need to get the manuals for the Cat. I'm working on 7UD4, a '53, and without the manuals to know what you're doing you end up wasting a ton of time and sometimes attacking the wrong issue. Caterpillar is without doubt some of the finest engineered equipment ever, but you really do need to know what they intended things to do to fix whats busted. Doing a great job though, keep at it!
I have all the manuals for my 7U also. It’s amazing to read through them. You get the impression they were designed to literally run forever.
If you do a frame off restoration with a media blast, the Cat would be at least one ton lighter. I might be able to take something apart, but to put it back together -----is the mark of a mechanical wonder!
Years ago, when I was a child in the 20th century, we had a neighbor that retired from teaching kindergarten. She had to see our garden to see what insect life was there. The short story is that she showed us how to care for the chrysalis's of monarch butterflys.
I'm so intrigued by this saga, I literally can't wait for the next episode. Love the videos dude, keep it up. 👍🏻
This is definitely a labor of love for that monster.
We were taught in grade school in the UK that they were called chrysalis I think the months make cocoons But don’t quote me on that love your channel I am a retired mobile mechanic from the UK and find your channel very therapeutic thank you and Hi from the UK
You are just a good-hearted soul to trim and make it nicer
Milky hydraulic oil means you've got water in the system. Hydraulic tends to degrade after sitting for an extended period of time, and you've already found out about the hoses. If that were my machine, I'd flush the hydraulic system and replace all the hoses. Already been there with one of my EIMCOs, but it put in a week of underground production service before popping a hose after sitting for at least ten years.
The hydraulic fluid degradation presented as loss of power to the hydrostatic transmission, as the fluid's viscosity had lessened and its ability to sink heat was diminished. If you look inside the fill port and the fluid appears foamy and/or smells varnished, it's time for a flush.
I agree Headframe... I wouldn't stress about milky hyd oil I've seen D11T's pull in moisture in Australian winters and I doubt these old girls have oil coolers!! closed hyd systems will always pull in moisture on cool down thru the breathers... just flush and change the oil should it be changed more regularly because vane pumps are a bit more temperamental than the modern gear pumps.
Got a old case backhoe that I had to replace a cpl lines on and boy were those alot of fun.
The dude plays with bulldozers and butterflies. What a rock star. Respect
Good job man there’s no other feeling then working on something that has been sitting for ever and getting it running
I was a former Cat mech in the 1970s. The model of your Cat seems to be an early 1955. The piece you called the idler bracket is the idler YOKE. The roller you jacked the track out of the way to gain access to is the TOP CARRIER ROLLER. The spring in the roller frame is called the RECOIL SPRING, and it is supposed to keep proper tension on the track. It looks as if it may be broken. The milky look of the hydraulic oil means it probably has water in it; NOT GOOD. The valve in the hydraulic filter is called the bypass valve. Its purpose is to keep cold oil flowing AROUND the filter until the oil warms up. I enjoyed this vid, which was for me a trip back in time, when I was young and strong.
Love when Salvage Workshop pops up even better when am in work things don't get done till I've watched it (under table watching)
I’ve really enjoyed watching this. I love seeing old iron come back to life! It’s a real joy watching you work on Old Red and I can’t tell you enough how much I appreciate it. Loving this series!
I think that valve on the hydraulic filter is a bypass valve. If the filter gets too dirty it opens and lets oil through so the Hydraulic pump gets oil and does not burn up. They will wear out quick without oil!!
You are correct, saved me some typing!
Correct it is a bypass to prevent damage to the filter to not collapse if it is dirty or the hyd oil is really cold
Watched another great video of your no quit work ethic. Go home and hug the family. And keep up the good work and videos.
You might want to look at the hydro pump shaft. A lot of these older machines have a lever to disconnect the hydraulic pump shaft from the motor. Kinda like a love joy coupling. That slides back and forth.
If memory serves me right from my Cat days, you can exchange the outside plate with the inside plate and you'll have that part like new. I've seen old equipment guys do that and they'd also build up the slide rail and grind it back smooth to help remove even more of the excess slack.
Coming along. Cat still will make hoses for you. Take the old one in when you do it. Tight short ones are a bugger when theyre pliable still, you had fun there...ha. All these questions you ask are in the service manual from cat. Caterpillar will you sell a reprint handled by a third party. Might find one on ebay cheaper. You'll get the straight answer every time, not have to go through a thousand comments and wonder. Track idler plates should be as close to the rails as you can make them and not touch them. 1/16 gap is better than rubbing them. Leave the tensioner alone until you can fix it right. Lots of farm machines had those "aftermarket" parts lol. If you're working it hard it will matter soon enough. If you're just weekending and kinda working it easy it'll live a while yet. Cutting into hard dirt and pushing hard at the same time is when the tensioner gets loaded hard. Turning in deep mud with a loaded bucket is when all the big forces develop on track hardware. Hills are the next row down force-wise. Looking good thanks for sharing
Popsicle sticks for the tough STUFF. ..CLEAN AS A WHISTLE
Having a parts machine is gold
Doing a great job on old Red . Great seeing the progress so far.
Oh no, great job other than that! Butterfly things look like jalapeño peppers! Thanks so much Matt, good one as always!
Following this saga is really interesting. Keep the videos coming. Be careful when working with hoses and hydraulics make sure all pressure is off the lines when disassembling. Might want to have the hydraulic pump load tested I hear a whine not sure if it was hydraulic pump or not. Just a thought. Love seeing the old girl fixed RIGHT thanks. Looking forward to a clean up video. In the past woulda said paint it up real nice too but I heard recently let it look the way it is. The old machine has earned her scars and bruises. Thanks for sharing the videos for sure.
I never leave comments so with that. AWESOME WORK!! Great series, I'm a lil jealous......hugely jelly, I WANT ONE! Love old heavy equipment. Treat Old Red with love and TLC & he'll last another century. My grandfather used to have an old D5 dozer & wld let me sit on his lap & help grade the beach #Oc when I was a pup, I'll never forget #lostbutneverforgotten #maverickofhistime thk u
always remember when you heat anything, it gets hot 😊
Watch em blow!! Gonna get alot of practice changing hoses!😬
You definitely don’t want to have those idler retention plates tight, there has to be some room to allow the tracks to be tightened, it also allows the idler to absorb shock loads from the front as you work the machine into piles or rocks etc. On the other end of that wishbone rod there is a big spring, that is the shock absorber and the track tensioning mechanism. When you tighten the tracks it actually pushes the idler ahead on the track frame. (Edit ...I made my comment before I finished the video sorry for boring you with the explanation of the track tensioning mechanism)
I am not ever going to do this kind of stuff. I do tinker within my ability, so to speak. Your videos have given me more ability as well as a different perspective when working on anything. I do a great deal of back country trial riding, I have a philosophy[hy similar to yours. I do not like to say, geeze I should have brought that I have it at home. Yours is, I should have done that when I had it apart before, you do it now. thanks for your efforts to share.
Watched it all !!! Way to go brody.
You would want a little bit of movement so when you go to adjust the tracks the idler moves instead of being shimmed up real tight, you’ll figure it out👍 good job so far on bring it back to life
Also if a rock gets caught in the track the idler needs to be able to spring back instead of breaking something.
It is very common to find these types of repairs (in our area generally called plating) as repair patches whe adjusters don't work, springs are broken or soose tension. Usually a stack of Plates with a U cut into them and dropped over the cylinders, screws, or spring retainers.
Thats the bypass valve that opens to allow oil flow in case the filter gets clogged, oil flow can still occur.
Great video series. Can't wait for the next part. Keeping the old iron running is what I like about you.
It's the idler guides that are worn,the bodge way to get rid of the play without taking the idler out was to put shims in on the bottom side of the idler,look in from the front and you will see where the idler guide casting fits over a square bar on the track frame,I used to use old car springs to make shims,cut them to shape hammer them in,even amount each side and weld them in place.
Enjoying this series. I hope you’re keeping a good listing of all those “it’ll have to do for now”s. 👏😎👏
Your videos are educational and very interesting to me. I like to restore old farm machinery but nothing on the scale you have taken on with this Cat. Keep up the good work and I will be a regular viewer.
Very nice!!!!!! Keep up to good work!!
Lots of work.. she is coming. till the next one.......
So impressive. I really like this. Thanks.
If it spins a protective shell from silk to pupate like (obviously) a silk moth, that's a cocoon (with its chrysalis inside). Not all moths make cocoons, but I think you are right that no butterflies do.
You should do a full restore on the old girl that would be awesome.
Now, the Butterfly part was really neat !
Great video. The problem with old stuff. You will be replacing those old hoses. Spend the and put new ones in as you go. Your doing a great job. Absolutely loved the monarch butterfly learned something new on them .
You got to think about the viewers could imagine the footage of loosing a arm live on camera priceless
Good News, I found the Operators Manual. If you do not have it I will send it to you. (Where do I send it) Apparently we had a 12A5522 It was gone before I started working for the family business in the late 1960s. My grandfather started excavation with horses around 1910. I have been working on earthmoving equipment for about 52 years. You have great mechanical abilities. Keep up the good work
@@SalvageWorkshop
I did
I must admit young man you have the dedication to follow this through, I know you can do it ,and I for one cant wait for Ep5, be safe You & Your Family , Regards from Wales Uk
Awesome video I learned to operate a loader on a unit just like this one. Great memories!
GREAT series.
The part you think that spins on the top of the filter doesn’t move. It’s the filter bypass valve, it only opens if oil can’t flow through the filter when it gets clogged up. And you hydraulic oil is contaminated with water, that’s why it looks like milk.
Love it! Great Save! I would love to find a project like that! keep the videos rolling. I even enjoyed the butterfly break.!
You display amazing patience.
Beautiful machine
This is all so amazing thank you for sharing this journey with us all!!
19:03 : don't worry. I always wear safety glasses when watching your videos.. thanks for.the great.video.
I see you have one of the biggest jobs left, track sprockets. Hopefully the sprockets on the parts machine are good.
GOOD JOB. BUTTERFLYS A NICE TOUCH TOO!