Tractor Forum banner
1 - 6 of 6 Posts

·
Lifetime Supporting Member
Joined
·
173 Posts
Discussion Starter · #1 ·
I have a 2000 MTD YardMachine model 667. Looking thru the owner's manual, I see no reference to any tranny maintenance. In the parts manual, the tranny is listed as:

Single Speed Transaxle-R.H.
Model 618-0163B

Who makes this tranny?

Thanks, Doug
 

·
Lifetime Supporting Member
Joined
·
173 Posts
Discussion Starter · #2 ·
Now I know next to nothing about transaxles...

What kind of maintenance (if any) do I need to do to this tranny?

MTD calls it a transmatic. You can shift on the go w/o clutching. I've found shifting to higher speed is easy. Shifting to lower speed causes some resistance and I go ahead and clutch.

Would this be called a gear drive? I thought gears ALWAYS required clutching.

Is there anything "hydro" about it? I don't see it in the diagram but that don't mean much.

Thanks, Doug

<img src="http://home.comcast.net/~dougand3/tranny8x12.jpg">
 

·
Lifetime Supporting Member
Joined
·
173 Posts
Discussion Starter · #14 ·
Martie, it has a fender mount shifter with 7 speeds and parking brake. Speed 7 is whiplash territory. As explained below in the posts from the "other" forum, speed changes by belt tensioner/split sheeve pulley. From what I gather, it's not a hydro but not really gear either. The link for the rebuild is a good little article. The surplus center tranny might work if mine goes belly up. Doug



Posted by: JShepherd

Doug, I just rebuilt my 618-073 transaxle (similar to yours). It is a sealed unit that doesn't need regular maintenance. There is no hydro unit in the axle. The transaxle is loaded up with thin greese that lubes it durring operation. The speed is cotrolled by a belt tensioner. My MTD 14/42 that has a 618 transalxe is also easier to shift into a higher speed. I rebuilt mine after 13 years of use. I seized a gear pulling a plug aerator, prob. to heavy for my unit. I did a small, not so good write up on what went wrong with my transaxle. I'll add the link below. Overall I've been pleased with the transaxle, the hardest thing durring the rebuild was removing the rusted axle bolts that secure it to the tractor..


Here is a link that might be useful:
MTD Transaxle rebuild
http://www.members.aol.com/fhportal/mtd.htm

--------------------------------------------------------------------------------

RE: MTD tranny
Posted by: Fisher

It is actually just a forward/reverse differential.
The speed range is obtained by a split-sheave pulley
between the engine and rear end.
No maintenence.
Fish
 
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top