Export thread

XT1 LT46 Bad Transmission or Belt?

#1

J

JonnyBlaze

Hello All! I got a 2016 LT46 with 53 hours. Mowed my yard with it, about 45 minutes, then transmission starts slowing down and losing power. Changed oil with Castrol 15w50 and does the same thing. How do I know if its a bad belt or bad transmission? Thanks!


#2

B

bertsmobile1

My test for hydros is rolling them down the ramp off the trailer
If I have to pushe them and they stop the second I stop pushing them, the transmission is excellent
If they roll with just a little resistance and continue a short amount when I stop pushing they are on the way out
If i give them a shove and they take off and don't stop they are shot.
Sloped driveway is just as good to test on , but wear your runners .


#3

J

JonnyBlaze

bertsmobile1 said:
My test for hydros is rolling them down the ramp off the trailer
If I have to pushe them and they stop the second I stop pushing them, the transmission is excellent
If they roll with just a little resistance and continue a short amount when I stop pushing they are on the way out
If i give them a shove and they take off and don't stop they are shot.
Sloped driveway is just as good to test on , but wear your runners .
Click to expand...
Ok. Thanks. I'll try it out tomorrow.


#4

M

MParr

53 hours is pretty low for the transmission to be failing. You stated that you had changed the oil. That’s good, you have followed the Tuff Torque recommendation of an initial 50 hour change. Inspect the drive belt and check the tension.


#5

3

350Rocket

bertsmobile1 said:
My test for hydros is rolling them down the ramp off the trailer
If I have to pushe them and they stop the second I stop pushing them, the transmission is excellent
If they roll with just a little resistance and continue a short amount when I stop pushing they are on the way out
If i give them a shove and they take off and don't stop they are shot.
Sloped driveway is just as good to test on , but wear your runners .
Click to expand...


#6

3

350Rocket

This is with the hydro disengaged for pushing I assume? I'll have to check mine but if I remember correctly it still had resistance but I was on flat ground.


#7

J

JonnyBlaze

bertsmobile1 said:
My test for hydros is rolling them down the ramp off the trailer
If I have to pushe them and they stop the second I stop pushing them, the transmission is excellent
If they roll with just a little resistance and continue a short amount when I stop pushing they are on the way out
If i give them a shove and they take off and don't stop they are shot.
Sloped driveway is just as good to test on , but wear your runners .
Click to expand...
It rolls slowly with some resistance.


#8

B

bertsmobile1

350Rocket said:
This is with the hydro disengaged for pushing I assume? I'll have to check mine but if I remember correctly it still had resistance but I was on flat ground.
Click to expand...
Engine off and hydro bypass in the drive position so the wheels are now the pump & the pump is now a motor.
What you are measuring is the resistance of the oil to leak out of the motor / pump units which is how hydros fail.
With the bypass in the push position it should push as easy as a motorcycle .


#9

3

350Rocket

bertsmobile1 said:
Engine off and hydro bypass in the drive position so the wheels are now the pump & the pump is now a motor.
What you are measuring is the resistance of the oil to leak out of the motor / pump units which is how hydros fail.
With the bypass in the push position it should push as easy as a motorcycle .
Click to expand...
So if you couldn't even begin to push it (before knowing the hydro had to be bypassed) then it's probably okay too.


#10

J

JonnyBlaze

If anyone has a good used one for sale cheap, hmu. 03809


#11

B

bertsmobile1

350Rocket said:
So if you couldn't even begin to push it (before knowing the hydro had to be bypassed) then it's probably okay too.
Click to expand...
NO NO hydros in the drive position, not the bypass ( push ) position .
And of corse brake off.
The wheel should roll in the same direction
If they roll in opposite directions then the parking brake is jambed on .


#12

IaFarmer

IaFarmer

JonnyBlaze said:
If anyone has a good used one for sale cheap, hmu.
Click to expand...
I see a couple K46 transaxles on eBay for $345.00 to $625.00 one refurbished & the cheaper one just pre-owned. Good Luck


#13

3

350Rocket

bertsmobile1 said:
NO NO hydros in the drive position, not the bypass ( push ) position .
And of corse brake off.
The wheel should roll in the same direction
If they roll in opposite directions then the parking brake is jambed on .
Click to expand...

bertsmobile1 said:
My test for hydros is rolling them down the ramp off the trailer
If I have to pushe them and they stop the second I stop pushing them, the transmission is excellent
If they roll with just a little resistance and continue a short amount when I stop pushing they are on the way out
If i give them a shove and they take off and don't stop they are shot.
Sloped driveway is just as good to test on , but wear your runners .
Click to expand...
On flat ground should I be able to roll it with the hydro engaged? I don't have a ramp to test it on but I can push it fairly easily and I believe I couldn't the first time I tried to push it (when the starter was bad). The trans also sounds noisier than usual while taking off or going in reverse. Still has full power and doesn't seem to slip. It got noisier after towing a small trailer full of bricks with it.


#14

B

bertsmobile1

Yes
I was just trying to explain how I (me ) do a rough check of the hydros on the mowers I am servicing
Sounds lik you have blown yours now that we have more information
HYdros have a specific load limit
They also must always be used with the engine running full speed,
Had to trash several where the owners used them for tow motors & run the engine at 1/2 speed rather than controling with the lap bars


#15

3

350Rocket

bertsmobile1 said:
Yes
I was just trying to explain how I (me ) do a rough check of the hydros on the mowers I am servicing
Sounds lik you have blown yours now that we have more information
HYdros have a specific load limit
They also must always be used with the engine running full speed,
Had to trash several where the owners used them for tow motors & run the engine at 1/2 speed rather than controling with the lap bars
Click to expand...
I was running it at full throttle while towing that load for maybe 15-20 minutes total. I was towing it with the 81 MTD 11hp first and could tell it was overloaded as it kept spinning the tires. So I switched to the much larger cub cadet to finish the job. Sounded like the trans didn't like it so I decided I would only tow half that amount from now on. First time for me towing with lawn tractors.

I'll probably use the old one for all towing from now on to save the bigger one for faster mowing. 306 hours on the cub cadet which is maybe pushing it on one of these if it had no prior fluid changes. Hopefully it will last a while just mowing on our semi flat yard.


#16

J

JonnyBlaze

Are there any other models that use the same transmission that I can be looking for a used one from? I know it needs axles that have bolt on wheels and not the c clip. Not sure what else is different in other K46's.


Footer Links 1

Top