All-Terrain Lawn Tractor Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.

All-Terrain Lawn Tractor Forum

Like riding lawn tractors through mud, woods, rocks, and snow? Then this is the place for you! Share your ideas, Post your projects and more!
 
PortalHomeSite RulesEventsFAQSearchRegisterLog inBuild-Off

 

 HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others

Go down 
3 posters
AuthorMessage
jack9102
Member
jack9102
Member


Age : 27
Join date : 2013-03-17
Points : 4198
Posts : 103
Location : Sudbury, ON, Canada

HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others Empty
PostSubject: HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others   HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others Icon_minitimeJanuary 19th 2015, 3:20 pm

I tried it once, had an awesome writeup of how to lock these things, and it 'timed out.' great. About an hour of straight typing. GONE. Thanks server! Very Happy

One note. This requires welding, and your welds need to be hot, clean, and deep. I used a Lincoln Weld-Pak 100 on high settings [Wire speed 2-3 / 10, power C [from A-D]]

Okay. So to start, get the trans out, and stripped to the point where you'd be removing the bolts from the case. No brakes, no pulleys, nothing.

Split the case, clean all the parts, take note of how everything came apart so you can put it together in the right stack/order.

Set all the parts in an empty bin and put them aside. You won't wont welding spatter on these so cover em up.

Get the axle on your bench and get an angle grinder.

Grind off the rivets holding the carrier to the ring gear, but don't grind the rivet stubs flush AFTER the halves are separated - these serve as locating dowels on reassembly. Also, make match marks on the halves so they go together EXACTLY as they came apart.

Start by welding the ring gear side bevel to the ring gear - hope that's clear as mud - and weld the nut to the axle [this removes any play - but ruins the axle and prevents removal. Just do it]. Do not weld the backside of the ring gear to the axle shaft - this is a thrust surface.

Remove the spider gear retaining pin by grinding off one side [the peened, rivet-like side] and hammering/pressing out the pin. Throw out the spider gears and pin/washers to leave a bare carrier cup. Welding the axle bushing that is fitted to the bottom of the cup will strengthen it if it's loose, but keep the profile low so the axle protrudes as far as it needs to.

Now weld two bolts to the carrier-cup bevel, and weld those bolts to the cup itself - making sure the axle isn't drawn back by contracting welds. Again, weld the nut to the bevel, and the axle to the nut. Cover the entire threaded end in weld so there is no chance play could develop.

Now you need to assemble the two halves, keeping them as centered and straight as possible. Clean as much welding spatter from the mating surfaces as you can before fitting the parts together. The photos don't show this clearly, but plug weld the rivet stubs back to the carrier flange, and in areas around the flange-to-ring gear surfaces.

Weld the ring gear to the cup from the other side now, going inside the holes in the gear itself.

Check the fully welded axle for straightness. If the axle is bent [ie kinked] but on center, it can be altered. If your centers are off you've effectively ruined the axle. But this method could still help you, if you cut both sides as I'll explain.

Make a grinding disc-wide cut from one spider pin hole to the other, opening a gap in one half of the carrier. This will allow you to open or close the gap, which in turn will alter the axle angles. once it has been set properly, spot weld the gap closed so it doesn't warp out of straight again. This is not an extreme area that needs a ton of penetration or heat, cause the other side is still supporting things. But do the best you can to make it strong.

You're all set. Clean up all spatter on thrust faces, get every loose chunk of weld out of the carrier, clean the parts again, re grease everything, and reassemble.

For break in, go slow for about an hour of continuous driving. When you notice the axle is easier to turn [ie, you can actually push your tractor in 'N'] it should be good to go.
Back to top Go down
jack9102
Member
jack9102
Member


Age : 27
Join date : 2013-03-17
Points : 4198
Posts : 103
Location : Sudbury, ON, Canada

HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others Empty
PostSubject: Re: HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others   HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others Icon_minitimeJanuary 19th 2015, 3:28 pm

Here are the photos for the previous writeup. I hope they clear up anything you'd ask cause I don't feel like stripping my good tractor down again! Also - as I mentioned in the previous writeup, if the axle shafts are OFF CENTER, cutting both sides of the carrier cup will allow you to adjust everything back to dead-on and straight, but you'll need a transaxle half to use as a jig. I haven't had to do this thankfully, but if you run into that problem it's a possible solution. NOW, on to the photos! Good luck folks!

HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others 2014-123
HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others 2014-124
HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others 2014-125
HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others 2014-126
HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others 2014-127
HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others 2014-128
HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others 2014-129
HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others 2014-130
HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others 2014-131
HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others 2014-132
HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others 2014-133
HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others 2014-134
Back to top Go down
Doc Sprocket
Site VIP
Doc Sprocket
Site VIP

2500+ Posts
2500+ Posts!
2018 Build-Off Entrant
2018 Build-Off Entrant
2021 Winner of Winners
2021 Winner of Winners
1st Place Build-Off 2016
1st Place Build-Off Winner 2016

Age : 51
Join date : 2013-04-21
Points : 7104
Posts : 2914
Location : Ontario Canada

HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others Empty
PostSubject: Re: HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others   HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others Icon_minitimeJanuary 20th 2015, 8:41 am

Nicely done, and thanks for the write-up. Jeez- those things really ARE cheap, aren't they? Very Happy

EDIT- STICKIED! And will be added to the locking methods thread. -Doc
Back to top Go down
RCG
Member
RCG
Member

2016 Build-Off Finalist
2016 Build-Off Finalist
2018 Build-Off Finalist
2018 Build-Off Finalist
2022 Build-Off Top 3 Winner
2022 Build-Off Top 3 Winner

Join date : 2013-01-05
Points : 4627
Posts : 438

HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others Empty
PostSubject: Re: HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others   HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others Icon_minitimeDecember 15th 2015, 1:56 pm

No question your way is stronger but figured I would add mine to this just to help out.

Back to top Go down
http://www.Mudmower.com
Sponsored content





HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others Empty
PostSubject: Re: HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others   HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others Icon_minitime

Back to top Go down
 
HOW TO LOCK MTD 1spd TRANSAXLES - FnR Trans 618-0073 and others
Back to top 
Page 1 of 1
 Similar topics
-
» trans lock
» New and improved way to lock trans axle!!!
» Are Foote 3f/1r hi/lo transaxles durable?
»  Where do you guys buy your Transaxles?
» Transaxles gear box

Permissions in this forum:You cannot reply to topics in this forum
All-Terrain Lawn Tractor Forum :: Technical Forum :: Drivetrain & Brake Tech :: Transaxles and Transmissions-
Jump to: