cub cadet is running very slow but Engine is good

nigelbb

Forum Newbie
Joined
Aug 13, 2011
Threads
1
Messages
4
My brother in law has cub cadet and it is getting slower and slower.
The engine starts and runs very well.
is this a transmition problem or clutch or other problem
any ideas please?
 

KennyV

Lawn Pro
Joined
May 5, 2010
Threads
26
Messages
5,447
What model CC is it?
They made shaft driven gear & hydro drives...
And belt drives... :smile:KennyV
 

benski

Well-Known Member
Joined
Mar 23, 2011
Threads
11
Messages
881
Yes, we'll need a little more information. If it is a hydro model, check your transmission oil level. If it is a belt driven model, check your belts and pulleys for wear, as well as any tensioning springs, etc. If you have an electric clutch, check it for slippage.:wink:
 

SONOFADOCKER

Well-Known Member
Joined
Jun 19, 2011
Threads
5
Messages
400
The adjustment of the hydro is time consuming easy adjustment . Make sure hydro fluid is filled to the top and your belt that runs the cooling fan is ok . Your brake adjustment should be checked also . Same type of spring threaded double bolt set up . Might be dragging ?
Remember it is easy to adjust the system but it is turn the bolt and spring, lock the bolt, drive it - some machines that come into our repair shop just do not have the ground speed anymore .
Mostly caused by never cleaning the piles of dead grass sitting on the rear axle - it is air cooled too and owners neglect to keep the engine, deck,rear axle clean .
 

crazyoldtractor

Active Member
Joined
Aug 19, 2011
Threads
19
Messages
79
The pump in your hydro transmision could be worn out. I have an older craftsman with a hydrogear hydro transmision. Mine doesn't go as fast as it used to, even with a new belt, and the oil is full. It makes this really loud, deep whining noise when the clutch is let out and driving. It doesn't seem to be losing power or anything it just doesn't go as fast as it used to. Keep in mind though, this tractor has see a lot of abuse, lots. This tracotr is used off road and towing, i mean towing big, heavy logs and stuff, and up hills too. If anyone has any input, i would like to hear it. Thanks.
 

nigelbb

Forum Newbie
Joined
Aug 13, 2011
Threads
1
Messages
4
I don't think that it is Hydro drive.
The lawn tractor has a rod that is connected to the foot pedal going back under the frame to the transmition.
I think that this has some sort of clutch arrangement in the transmition underneath.
I dont think that it has a belt drive either.
I am not an expert with this mower by means!
All i know is that the harder you push down on the pedal it just plods along now and will sometimes
spring into a little more speed.
Does this mean the transmition has to be rebuilt?
Any ideas would be great.
 

nigelbb

Forum Newbie
Joined
Aug 13, 2011
Threads
1
Messages
4
CUB CADET RUNNING VERY SLOW

I just found this posting about Cub Cadet transmition clutch issues and shimming SOLUTION from another site.
See below, does anyone know if this cheep fix really works out well?
Interesting!

My local dealer who quoted $600 to fix this problem. His solution was to replace the whole assembly. I finally spoke with someone at Cub Cadet tech support and they told me how to fix it wit $5 worth of parts!
The solution is to remove the frame cover (6 bolts) to get access to the top of the cluth assembly. The clutch assembly has a cover on on the top rear. If you remove this cover (3 bolts) you will see a bearing. The clearance between the outer race of this bearing and the cover (put straight edge against it shuold be 2/1000 - 7/1000. If it is not your clutch will slip. To fix it buy some $2 shims (washers). The part numbers are
736-3126 - Washer, flat, 1.25 x 1.8 x 0.005
736-3127 - Washer, flat, 1.25 x 1.8 x 0.010
736-3104 - Washer, flat, 1.25 x 1.8 x 0.015
736-3105 - Washer, flat, 1.25 x 1.8 x 0.020
736-3106 - Washer, flat, 1.25 x 1.8 x 0.025
736-3107 - Washer, flat, 1.25 x 1.8 x 0.062

Once you have these remove the bearing. Press on the forward pedal to help push it out and then pull it the of the way. I did this with a bent heavy paper clip. Insert the proper washers to get back within spec (2/1000 - 7/1000), insert the bearing and put the cover back on.
If the spacing is to small (< 2/1000) then the tractor may creep when idling in 1st gear. Other than that you shuold be in good shape!

I assume this will work on any cub cadet lawn tractor with auto-gear transmission.
 

mwhitnell

Member
Joined
Sep 7, 2014
Threads
8
Messages
18
  • / cub cadet is running very slow but Engine is good
Don't listen to these posts, beacuse they have no idea, and probably have over 10,000 posts a month. Okay what you need to do is remove the engine drive pulley that connect to a shaft attached to the brake lever. This pulleu (s) keep tension on the drive belt. This plate is attached to the frame via, a bolts that has a brass bushin in it. It is rusted tight, so the full tension is not applied when the brake lever is release, Clean it, put the should bolt in acid for a few minutes, lube it and back together.
 

cpurvis

Lawn Addict
Joined
Aug 25, 2015
Threads
21
Messages
2,256
  • / cub cadet is running very slow but Engine is good
Don't listen to these posts, beacuse they have no idea, and probably have over 10,000 posts a month. Okay what you need to do is remove the engine drive pulley that connect to a shaft attached to the brake lever. This pulleu (s) keep tension on the drive belt. This plate is attached to the frame via, a bolts that has a brass bushin in it. It is rusted tight, so the full tension is not applied when the brake lever is release, Clean it, put the should bolt in acid for a few minutes, lube it and back together.

#1 This thread is almost nine years old and the OP stated that he has already received a message from Cub Cadet how to fix the problem.

2# The autogear Cub Cadets (2000 Series) are horizontal engine, shaft drive. There is no drive belt or pulleys.
 

StarTech

Lawn Royalty
Top Poster Of Month
Joined
Feb 19, 2020
Threads
74
Messages
10,100
  • / cub cadet is running very slow but Engine is good
My lord you just posted to a nine year thread. If the OP hasn't fix by now it probably won't get fix......
 
Top