Replace the Transmission on a Commercial Walk Behind Mower

[@oaktree71able]

Just a few tips from someone who has worked on antique machinery for many years. Study your project before you tear it apart so you understand the mechanics. Pressure clean or clean your work surfaces to reveal any alan set screws etc and also to keep your hands clean for your task. Take pictures! Use a good penetrating oil and let it soak for a long while before you start the project. If you have a set of torches use them or at least use MAPP gas instead of propane, it is a lot hotter if you need to apply heat. Be patient and try not to destroy your components by force. Invest in a good set of pullers. Use U tube!!! I was very fortunate to have my father as my KZbin and taught me literally when I was in diapers and growing up. Learn how to do the project and teach others what you know. " Understanding is a wellspring of life to them who have it." Most anyone can do the projects, if you understand how it works.

[@mauriciogalvis4708]

Thanks buddy you save me a lot of money!!!

[@Kovz34]

Great video, thank you for the tutorial! This really helped me on my gravely. Less than 2 hours start to finish. Very thankful for the c-clip on the drive pulley so I didn’t need to rent a puller.

[@jodyroper5105]

I have a old Snapper Pro 48in that needs the transmission replaced as well, I'm not looking forward to this project now. Thanks for the video!

[@TheRandyDulin]

Lol it’s not that bad. This was my first time doing it. I had to do it again on another machine and it went way faster the second time

[@Nick-qj5mc]

Spray the pulley with penetrating oil and use an air hammer with a blunt tip.

[@jasonturner4989]

@@TheRandyDulin where did you find the pulley i can't find it no where.. I had do do the same I have a snapper pro 5 speed I need that pulley

[@waltercastro2015]

Nice video thanks sooooo much it helped. Now is to learn how to use the sulky on t-bar mower. I have 32 proline commercial and you use it flawless.

[@apatterson8128]

That's a great video, Dulin. Appreciate it.

[@icewallflatearth1158]

Next time you do a pulley removal... Spray a lil WD... Tighten the puller snug.. Remove ratchet.. Then tap the puller center bolt with a hammer.. Snug a little more and tap again.. Repeat.. It usually shouldn't take more then a few minutes using this procedure.. Even with heavy rust oxidation..

[@stevenmchenry9276]

I have the same Trans can you make videos about the Trans going slower

[@southfloridadventure]

the music is too loud but the voice is too quiet. need to work on that

[@Brett030108]

Where did you buy the new transmission??

[@grumpy1962R]

Snap ring holds the pulley on as well as a set screw

[@TheRandyDulin]

Yep. Took both of those off but the pulley was rusted onto the shaft

[@dufourrichard856]

Omg. Did this exact same thing today Before watching this video. Glad.i didn't, he could have made it much easier for him removing c clip before trying to pull the pulley off- And destroying it.. Good video though

[@soulbrother1143]

How do you put these in nuetral so i can push it freely

[@streamskiller26ad18]

Hello. I have a question about my mower. The exact same one as this video.

[@TheRandyDulin]

What’s the question?

[@javonslawncarellc.1182]

Awsome vid i got a scag 48 walk behind i got to do this same thing too

[@austincharron3681]

Not sure if anyone still has this video but u have the same mower and my transmission went out what transmission was that and what was the price I’m 16 and I need to replace it but my mower is a lot older than me if anyone can help it would be much appreciated.

[@mckeeslawncarelandscaping7181]

Thanks for the video boss bout to try and pull mine out

[@TheRandyDulin]

good luck!

[@love101a3]

Guys if you was trying to cut this spindle you have to use Cast iron blade that’s what I learned

[@davidkaufman9367]

OMG That whole process looked tedious man!! Wow. Need a drink about thinking of what could go wrong will go wrong. I dont know I think I would rather sell another job and just drop it off somewhere to get done! Installing a New Kawasaki engine on one of these is far easier than this nightmare lol

[@TheRandyDulin]

Engine swap is definitely easier than swapping the transmission but it’s not actually that bad. I’ve done 3 transmissions at this point and this was definitely the most difficult but only because the pulley was rusted to the transmission. If that hadn’t happened this would’ve been a pretty easy job

[@brysonstanley4099]

What transmission did you put into this video and where did you find it I have the exact same mower that needs one

[@gregbeck7755]

Hey I have a 48 inch scag with a peerless 700-026 transmission that needs replaced, was wondering if I had to get the 700-026 or will other 700 models work as well? I saw on eBay they had the 700-070A and it looks very similar to the one I have. Thanks!

[@TheRandyDulin]

It might but the issue you'll run into is the splines on the coupler. Some of these transmissions have different numbers of splines and if you get the wrong one you'll end up spending more money replacing the couplers. Looks like 700-026 is on eBay for $175. I'd just buy the correct one since it's so cheap.

[@gregbeck7755]

Dulin Cut & Trim okay thank you for the help!

[@jormawails]

that was a good realistic video I have not seen many vids on walk behind trans replacements Did the couplers come off easy how did you know what # trans to get Was the label still visible on the trans

[@TheRandyDulin]

The couplers just slid off, no resistance at all. I used a diagram for my mower off of jacks small engines site to find the trans model number and then found the trans itself on eBay. Oem wanted 850 but on eBay it was 169 lol

[@jormawails]

thank you i guess the correct model # would have the correct spline configuration

[@TheRandyDulin]

That’s how it worked out for me

[@gtejas01]

hey i have the same age type mower but mine is a 32in . exactly same pieces but i have problem. my mower turns left but when i try turning right , the couplers dont spin and they jam

[@TheRandyDulin]

Might wanna take that side apart and check for damages parts.

[@neildberg]

Please read... You didn't have to go through all of the transmission-pulling pain. There is a C-clamp holding on the pulley. The C clamp is just under the pulley and under a bunch of caked-on mud. You take that clip off and then the pulley requires about 100lbs of force pulling down (more than I could do alone, but it came off with a second set of hands helping me). You can then take the transmission off normally (no fire, no destroying the pulley, no cutting).

[@TheRandyDulin]

You’d typically be correct but on this particular machine the c clip was removed but the pulley was rusted to the shaft and wouldn’t budge, hence all the chaos that followed lol

[@neildberg]

@@TheRandyDulin I got really worried when I saw the video, happy when we saw/removed the C-clip, sad when the pulley didn't come right off, and then we had a little happy party after the pulley slid off after getting a lot of force pulling down. Yeah, with much rust that would have been another story! You might consider putting "check for C clip" after the "remove the set screw" and before you put on the puller. Mine was REALLY stuck up in there and nearly invisible until I got rid of a ton of dirt. You can find it by spinning the pulley and feeling for the open end under your fingernail. At any rate, thanks a ton for the video. This really helped us a lot!

[@TheRandyDulin]

Glad it was helpful man!

[@jasonturner4989]

Where did you buy the pulley

[@GardenViewLawncare]

Nice work bud.

[@tobylou8]

PB Blaster!!!

[@TheRandyDulin]

👍

[@ramseys20]

I have the same lawnmower can that be the reason the engine don’t turn I bought it for $100 I’m fixing it let me know thank you good job 👍

[@TheRandyDulin]

Transmission wouldn’t affect the engine that way

[@Fundaykidzz]

Great video

[@masterlawncare8213]

Hey randy i have an exmark metro hp idk if uts the transmission on flat ground mower runs good no problem but on hills and even hills that aint step its struggles allot i have to push it or i change the gear to 3 and it work what do you think could be wrong

[@TheRandyDulin]

How long since you replaced the belt? Sounds to me like the belt is slipping when the transmission is working harder. Depending on the age of the machine it could be something else but belt is the most likely culprit in my opinion

[@chusisg]

What was the reason to replace? I have a 48” toro belt drive and it use to ride and pull me easy but now it doesn’t move it’s on any gear. Unless it’s super flat and smooth. Would you say I need a new trans? Or could it be something else?

[@TheRandyDulin]

My first move would be to make sure the belt going from the engine to the trans is properly tensioned. If it is then then I’d replace the belt first

[@gwheyduke]

My X-Mark "Viking" walk behind keeps dopping the drive chain. Can you show how to tighten the chain?

[@TheRandyDulin]

Drive chain? Do you mean the belt that goes from the engine to the transmission?

[@gwheyduke]

It's an older model, it has a chain between the shaft connected to the wheel drive belts and the transmission

[@icewallflatearth1158]

@@gwheyduke loosen motor bolts.. It should slide a bit foward and backwards, to loosen and tighten the chain, re tighten bolts

[@justanotherguy1633]

Hey hopefully you're still active on here. What holds the pulley on? Do I have to get a tool to get that off?

[@TheRandyDulin]

Just Another Guy a set screw and c clip hold the pulley on

[@colonialrva9930]

I have an older 44" proline and the shaft bearing on the right side keeps backing out, pushing the wheel pulley up against the bracket plate. Do you know how to fix that? It still works, but I'm sure over time, the pulley rubbing on the plate is going to cause some type of failure.

[@TheRandyDulin]

Harrison Goff if the bearing is coming out of the flange bearing assembly than I'd just replace the whole assembly. Pretty easy to do, same basic process as replacing the belt with an additional step or two thrown in. Part only costs about 30 bucks

[@osmanreyes7195]

Sir just want your opinion I got a 2014 scag 36 walk behind and at the time of use it it only works good like 20 minutes or less then when I try to go up hills the transmisión it not pulling at all then when I turn it around it works perfect on down hills and flat surfaces, I will appreciate if you can give me your opinion on what is going on with this machine

[@TheRandyDulin]

First thing I would check is if the belt has enough tension on it and then go from there

[@mab123080]

I had a scag do that only on hills. It's the tensioner arm bolt adjustment right under the engine

[@josem.2909]

If belt tension is right, then you need a new transmission 😅

[@brandonm3875]

Do you know what size allen head that set screw is?

[@TheRandyDulin]

No idea

[@ousamaabdu794]

Good work man. How long did that job take, and what is the HP on that 52 proline?

[@TheRandyDulin]

+Ousama Abdu it’s a 14hp engine. The job took about 6 hours but that’s because I had to go buy tools and the pulley was seized onto the transmission shaft. If Not for that then tilt would’ve been a 2 or 3 hour job

[@playtimet.v7342]

My mower only goes into first gear and pay pulls a little bit. And the others it doesn't pull at all if on flat ground maybe. Any suggestions as to what I need to do ?? Or what it could be.

[@TheRandyDulin]

What kind of machine is it? My first thought would be to check and make sure there's enough tension on the belt running from the engine to the transmission. It's very possible the belt is stretched and you either need to adjust the tensioner pulley or the belt needs to be replaced. I'd start there.

[@playtimet.v7342]

Dulin Cut & Trim it's a john deer gs75. I've done everything and it's running nice. I'll do that and change the PTO. Because the blades are not going down either.

[@codyslawncare8832]

Is there any service on theses? Far as greasing it or anything? I haven’t found many videos on em.

[@TheRandyDulin]

I believe they can be serviced but you gotta really know what you’re doing. The only grease fittings are on the couplers

[@codyslawncare8832]

Ok thanks. There’s a yellow cap on top. Didn’t know what it’s for. No problems out of it just trying to figure out if it can be service to keep from having trouble later?

[@gizmotony1234]

do you have to put any fluid in the transmission??

[@TheRandyDulin]

no. You can grease the internal components but I wouldnt crack that thing open unless you really really know what you're doing. The previous transmission had been on there for 20 years so they def last

[@gizmotony1234]

@@TheRandyDulin thank you ... i couldnt find anywhere to ad fluid and i didnt know ... i bought it used and it works great ...so i will not mess with it thanks a lot

[@TheRandyDulin]

@@gizmotony1234 glad i could help

[@frankieskinner1212]

How much does a trans mission cost?

[@frankieskinner1212]

The price on a new 2010 scag walk behind transmission cost

[@TheRandyDulin]

I have no idea. You’d have to take your model number and put it into a site like jacks small engines or something and figure it out from there

[@stevendittmar9038]

I have a 700-070 can i replace it with a 700-078 i have

[@TheRandyDulin]

wouldn't know without looking at it but if they look the same I would make sure the splines coming out the sides also look the same so you dont have to replace anything else

[@notavailable9919]

Isn't there a woodruff key?

[@TheRandyDulin]

yes there is one between the transmission and the pulley underneath the mower

[@davidkaufman9367]

Yup after seeing that video decided not to Kill my sunday or whenever doing it

[@twportre8809]

Where did you get that nice walk behind mower jack from? Our lawn care company that has a shop inside I work at don't even have a single jack like that for mowers. I'm working on that EXACT model and this one has a snap ring with the holes the size of an ant's penis. Have to use the screwdriver method lol

[@bammbam199s]

It is not the same type of mower therefore it’s not relatively the same process 🤔

[@tommymann69]

Take the old transmission and have it fixed.

[@medic001465]

I thought I heard the word "easy"....

[@TheRandyDulin]

Lol yes you did

[@cgrscott]

I have a feeling you ran into trouble because you don't know what you are doing. This is a very common situation with these here's how do it yourself video's on KZbin.

[@TheRandyDulin]

Nope. Use it everyday and it works great

[@cgrscott]

OK. I take your word for it. I have a 2005 Cub Cadet Commercial Walk behind with a 48" deck. I'm the original owner. It looks like my gear box has failed even though I'm still using the original drive belts that are fine and have never warn out. It looks like I will need to buy a special pulling tool to get the slave pulley off the bottom of the machine. Thanks for posting your "how-to" video.

[@TheRandyDulin]

Maybe, but if you've never changed the belts in all that time, I would do that first.

[@cgrscott]

Thanks for your redemptive advise. In the light of day, I looked under the mower while it was running and the transmission pulley belt was clearly broken. I'm so glad I don't have to replace the gear box. Thanks again for your help. Sorry for spouting off my ignorant comments.