Hydrostatic transmissions
 

Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

Hydrostatic transmissions
 

Jim wrote:
Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

Other than some pump noise, perhaps, I'd expect essentially no
transmission sounds based on everything from lawn mower and tractors to
mid-40's hp tractors (as another poster, all green).

If it's anything else, I'd suggest time to ask the dealer if it's not
some junk walmart special...

--

Hydrostatic transmissions
 

Jim wrote:
Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said
when engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead
compare users descriptions to the sounds generated. Hopefully with
your inputs I'll have an idea of what is normal and what should be of
concern.

My John Deere is basicly silent, in other words, I hear no noises above the
sound of the engine. This includes switching back and forth from forward to
reverse which I can do quickly with the two foot pedals.

Hydrostatic transmissions
 

Well, off the top of my head, hooo-weee!!! Chigga,
Chigga!!!! is probably a bad sound. Hmm, grumble grumble is
probably OK, and Ahumma Ahumma is probably closer to
normal. Depending if you have a drawl.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"Jim" wrote in message
...
Just took delivery of my first ever lawn tractor with a
hydrostatic
transmission. Not being a Lexus I don't expect silence,
that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect.
I'm
purposely not including the sounds I'm hearing so I can
instead compare
users descriptions to the sounds generated. Hopefully with
your inputs
I'll have an idea of what is normal and what should be of
concern.

Hydrostatic transmissions
 

dpb wrote:
Jim wrote:
Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said
when engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead
compare users descriptions to the sounds generated. Hopefully with
your inputs I'll have an idea of what is normal and what should be of
concern.

Other than some pump noise, perhaps, I'd expect essentially no
transmission sounds based on everything from lawn mower and tractors to
mid-40's hp tractors (as another poster, all green).

If it's anything else, I'd suggest time to ask the dealer if it's not
some junk walmart special...

--


What brand of machine (and I use the term loosely for some brands ) did
you get stuck with?

Hydrostatic transmissions
 

On 23 Sep 2009 22:49:40 GMT, Jim wrote:

Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.


The only noise is the pump whine. That's normal. There's absolutely
no sound from the transmission. That, by the way, is for a 32 year
old, Case 222.

It sounds like you have a problem. No pun intended.

Gordon Shumway

Is it good if a vacuum really sucks?

Hydrostatic transmissions
 

On Sep 23, 3:49*pm, Jim wrote:
Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. *Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. *I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. *Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

Asking here is not the right place. The right place is back at the
dealer. Have them check it out.

In my JD there is only engine noise (too loud IMO) and mower deck
noise.

Harry K

Hydrostatic transmissions
 

A Case 222 is NOT HYDROSTATIC. It's full hydraulic. There is no wet
clutch in a Case.

Huh? It is a close loop hydraulic system. That is what defines
a hydrostatic circuit.

It doesn't need a clutch. It's hydrostatic!

Hydrostatic transmissions
 

On Sep 23, 11:30*pm, Gordon Shumway wrote in
part:
..
Is it good if a vacuum really sucks?
..
Yup, up to bar one!

Hydrostatic transmissions
 

On Sep 23, 11:30*pm, Gordon Shumway wrote in
part:
..
Is it good if a vacuum really sucks?
..
Yup, up to bar one!

Hydrostatic transmissions
 

On Sep 23, 5:49*pm, Jim wrote:
Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. *Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. *I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. *Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

I've noticed noise, sot of a whine when fluid is low. Find out how to
check it and what it uses then top it off if necessary. I've had them
that use type F ATF, and others that use 30 wt oil. I've also had one
that if it was changed was a challenge to bleed & would get soft to
the point of refusing to climb hills with the air once fully warm.

Hydrostatic transmissions
 

On Sep 23, 5:49*pm, Jim wrote:
Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. *Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. *I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. *Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

I've noticed noise, sot of a whine when fluid is low. Find out how to
check it and what it uses then top it off if necessary. I've had them
that use type F ATF, and others that use 30 wt oil. I've also had one
that if it was changed was a challenge to bleed & would get soft to
the point of refusing to climb hills with the air once fully warm.

Hydrostatic transmissions
 

On Sep 24, 8:15�am, Van Chocstraw
wrote:


The closed loop system needs to be controlled and reversed by an
external mechanical system.

Often, a hydrostatic transmission is combined with a planetary gearset
and clutches to create a hybrid system known as a hydromechanical
transmission. Hydromechanical transmissions transfer power from the
engine to the wheels in three different modes. At a low speed, power is
transmitted hydraulically, and at a high speed, power is transmitted
mechanically. Between these extremes, the transmission uses both
hydraulic and mechanical means to transfer power. Hydromechanical
transmissions are ideal for heavy-duty applications, which is why they
are common in agricultural tractors and all-terrain vehicles.

This is NOT how a Case works.

I hope you mean other types of vehicles when you state "all-terrain
vehicles", because ATV's (All-Terrain Vehicle) are all strictly
mechanical using either a wet multi-clutch system or a variable torque
converter, no hydraulics.

Hank

Hydrostatic transmissions
 

On Sep 24, 8:15�am, Van Chocstraw
wrote:


The closed loop system needs to be controlled and reversed by an
external mechanical system.

Often, a hydrostatic transmission is combined with a planetary gearset
and clutches to create a hybrid system known as a hydromechanical
transmission. Hydromechanical transmissions transfer power from the
engine to the wheels in three different modes. At a low speed, power is
transmitted hydraulically, and at a high speed, power is transmitted
mechanically. Between these extremes, the transmission uses both
hydraulic and mechanical means to transfer power. Hydromechanical
transmissions are ideal for heavy-duty applications, which is why they
are common in agricultural tractors and all-terrain vehicles.

This is NOT how a Case works.

I hope you mean other types of vehicles when you state "all-terrain
vehicles", because ATV's (All-Terrain Vehicle) are all strictly
mechanical using either a wet multi-clutch system or a variable torque
converter, no hydraulics.

Hank

Hydrostatic transmissions
 

On Sep 23, 4:49*pm, Jim wrote:
Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. *Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. *I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. *Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

Make sure you are a full throttle when moving.
Low engine speeds can generate more hydro noise.

Moving and mowing are always done at WOT.

Hydrostatic transmissions
 

On Sep 23, 4:49*pm, Jim wrote:
Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. *Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. *I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. *Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

Make sure you are a full throttle when moving.
Low engine speeds can generate more hydro noise.

Moving and mowing are always done at WOT.

Hydrostatic transmissions
 

Hustlin' Hank wrote:
On Sep 24, 8:15�am, Van Chocstraw
wrote:

The closed loop system needs to be controlled and reversed by an
external mechanical system.

Often, a hydrostatic transmission is combined with a planetary gearset
and clutches to create a hybrid system known as a hydromechanical
transmission. Hydromechanical transmissions transfer power from the
engine to the wheels in three different modes. At a low speed, power is
transmitted hydraulically, and at a high speed, power is transmitted
mechanically. Between these extremes, the transmission uses both
hydraulic and mechanical means to transfer power. Hydromechanical
transmissions are ideal for heavy-duty applications, which is why they
are common in agricultural tractors and all-terrain vehicles.

This is NOT how a Case works.

I hope you mean other types of vehicles when you state "all-terrain
vehicles", because ATV's (All-Terrain Vehicle) are all strictly
mechanical using either a wet multi-clutch system or a variable torque
converter, no hydraulics.

Hank

ATV's are made anyway that they want.

Hydrostatic transmissions
 

Hustlin' Hank wrote:
On Sep 24, 8:15�am, Van Chocstraw
wrote:

The closed loop system needs to be controlled and reversed by an
external mechanical system.

Often, a hydrostatic transmission is combined with a planetary gearset
and clutches to create a hybrid system known as a hydromechanical
transmission. Hydromechanical transmissions transfer power from the
engine to the wheels in three different modes. At a low speed, power is
transmitted hydraulically, and at a high speed, power is transmitted
mechanically. Between these extremes, the transmission uses both
hydraulic and mechanical means to transfer power. Hydromechanical
transmissions are ideal for heavy-duty applications, which is why they
are common in agricultural tractors and all-terrain vehicles.

This is NOT how a Case works.

I hope you mean other types of vehicles when you state "all-terrain
vehicles", because ATV's (All-Terrain Vehicle) are all strictly
mechanical using either a wet multi-clutch system or a variable torque
converter, no hydraulics.

Hank

ATV's are made anyway that they want.

Hydrostatic transmissions
 

On Thu, 24 Sep 2009 08:15:36 -0400, Van Chocstraw
wrote:

wrote:

A Case 222 is NOT HYDROSTATIC. It's full hydraulic. There is no wet
clutch in a Case.

Huh? It is a close loop hydraulic system. That is what defines
a hydrostatic circuit.

It doesn't need a clutch. It's hydrostatic!

The closed loop system needs to be controlled and reversed by an
external mechanical system.

By simply rotating the swash plate shaft like all hydrostatic drives.


Often, a hydrostatic transmission is combined with a planetary gearset
and clutches to create a hybrid system known as a hydromechanical
transmission. Hydromechanical transmissions transfer power from the
engine to the wheels in three different modes. At a low speed, power is
transmitted hydraulically, and at a high speed, power is transmitted
mechanically. Between these extremes, the transmission uses both
hydraulic and mechanical means to transfer power. Hydromechanical
transmissions are ideal for heavy-duty applications, which is why they
are common in agricultural tractors and all-terrain vehicles.

This is NOT how a Case works.

The Case 222 is a hydrostatic drive with a sizable charge pump to
run accessories.

Hydrostatic transmissions
 

On Thu, 24 Sep 2009 08:15:36 -0400, Van Chocstraw
wrote:

wrote:

A Case 222 is NOT HYDROSTATIC. It's full hydraulic. There is no wet
clutch in a Case.

Huh? It is a close loop hydraulic system. That is what defines
a hydrostatic circuit.

It doesn't need a clutch. It's hydrostatic!

The closed loop system needs to be controlled and reversed by an
external mechanical system.

By simply rotating the swash plate shaft like all hydrostatic drives.


Often, a hydrostatic transmission is combined with a planetary gearset
and clutches to create a hybrid system known as a hydromechanical
transmission. Hydromechanical transmissions transfer power from the
engine to the wheels in three different modes. At a low speed, power is
transmitted hydraulically, and at a high speed, power is transmitted
mechanically. Between these extremes, the transmission uses both
hydraulic and mechanical means to transfer power. Hydromechanical
transmissions are ideal for heavy-duty applications, which is why they
are common in agricultural tractors and all-terrain vehicles.

This is NOT how a Case works.

The Case 222 is a hydrostatic drive with a sizable charge pump to
run accessories.

Hydrostatic transmissions
 

On Wed, 23 Sep 2009 20:30:23 -0500, Gordon Shumway wrote:

On 23 Sep 2009 22:49:40 GMT, Jim wrote:

Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.


The only noise is the pump whine. That's normal. There's absolutely no
sound from the transmission. That, by the way, is for a 32 year old,
Case 222.

It sounds like you have a problem. No pun intended.

Gordon Shumway

Is it good if a vacuum really sucks?

Discovered the noise I was mistaking for the transmission was actually
further forward. A "scrunch, clang" and engine stall forced me to
investigate closer. Turned out the pulley on the left side mandrel wasn't
properly positioned. The extra tension was playing havoc with the deck.
Fortunately a few minutes with a wrench resolved that. Afterwards machine
ran well for the rest of the afternoon.

Next project will be to check what else may not have been assembled
properly.

For those interested the culprit is a Sears Craftsman YT3000 (28922)

Hydrostatic transmissions
 

On Wed, 23 Sep 2009 20:30:23 -0500, Gordon Shumway wrote:

On 23 Sep 2009 22:49:40 GMT, Jim wrote:

Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.


The only noise is the pump whine. That's normal. There's absolutely no
sound from the transmission. That, by the way, is for a 32 year old,
Case 222.

It sounds like you have a problem. No pun intended.

Gordon Shumway

Is it good if a vacuum really sucks?

Discovered the noise I was mistaking for the transmission was actually
further forward. A "scrunch, clang" and engine stall forced me to
investigate closer. Turned out the pulley on the left side mandrel wasn't
properly positioned. The extra tension was playing havoc with the deck.
Fortunately a few minutes with a wrench resolved that. Afterwards machine
ran well for the rest of the afternoon.

Next project will be to check what else may not have been assembled
properly.

For those interested the culprit is a Sears Craftsman YT3000 (28922)

Hydrostatic transmissions
 

On 24 Sep 2009 21:35:47 GMT, Jim wrote:

For those interested the culprit is a Sears Craftsman...


That says it all!

Gordon Shumway

Is it good if a vacuum really sucks?

Hydrostatic transmissions
 

On 24 Sep 2009 21:35:47 GMT, Jim wrote:

For those interested the culprit is a Sears Craftsman...


That says it all!

Gordon Shumway

Is it good if a vacuum really sucks?

Hydrostatic transmissions
 

On 24 Sep 2009 21:35:47 GMT, Jim wrote:

For those interested the culprit is a Sears Craftsman...


That says it all!

Gordon Shumway

Is it good if a vacuum really sucks?

Hydrostatic transmissions
 

Jim wrote:
Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

My 1970 Bolens/Husky 1256 hydro garden tractor makes lots of whining
high pitched noises and I'm told they were noisy from new.

Hydrostatic transmissions
 

Jim wrote:
Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

My 1970 Bolens/Husky 1256 hydro garden tractor makes lots of whining
high pitched noises and I'm told they were noisy from new.

Hydrostatic transmissions
 

Jim wrote:
On Wed, 23 Sep 2009 20:30:23 -0500, Gordon Shumway wrote:

On 23 Sep 2009 22:49:40 GMT, Jim wrote:

Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

The only noise is the pump whine. That's normal. There's absolutely no
sound from the transmission. That, by the way, is for a 32 year old,
Case 222.

It sounds like you have a problem. No pun intended.

Gordon Shumway

Is it good if a vacuum really sucks?

Discovered the noise I was mistaking for the transmission was actually
further forward. A "scrunch, clang" and engine stall forced me to
investigate closer. Turned out the pulley on the left side mandrel wasn't
properly positioned. The extra tension was playing havoc with the deck.
Fortunately a few minutes with a wrench resolved that. Afterwards machine
ran well for the rest of the afternoon.

Next project will be to check what else may not have been assembled
properly.

For those interested the culprit is a Sears Craftsman YT3000 (28922)

A quick search found some owners telling new owners to be sure to "purge
the transmission." Check your manual, maybe that will help with
whatever problem you are having.

Hydrostatic transmissions
 

Jim wrote:
On Wed, 23 Sep 2009 20:30:23 -0500, Gordon Shumway wrote:

On 23 Sep 2009 22:49:40 GMT, Jim wrote:

Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

The only noise is the pump whine. That's normal. There's absolutely no
sound from the transmission. That, by the way, is for a 32 year old,
Case 222.

It sounds like you have a problem. No pun intended.

Gordon Shumway

Is it good if a vacuum really sucks?

Discovered the noise I was mistaking for the transmission was actually
further forward. A "scrunch, clang" and engine stall forced me to
investigate closer. Turned out the pulley on the left side mandrel wasn't
properly positioned. The extra tension was playing havoc with the deck.
Fortunately a few minutes with a wrench resolved that. Afterwards machine
ran well for the rest of the afternoon.

Next project will be to check what else may not have been assembled
properly.

For those interested the culprit is a Sears Craftsman YT3000 (28922)

A quick search found some owners telling new owners to be sure to "purge
the transmission." Check your manual, maybe that will help with
whatever problem you are having.

Hydrostatic transmissions
 

justalurker . wrote:
On Sep 23, 4:49 pm, Jim wrote:
Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

Make sure you are a full throttle when moving.
Low engine speeds can generate more hydro noise.

Moving and mowing are always done at WOT.

I agree about the throttle. Amazing how many people don't realize these
little machines have two engine speeds, idle and full throttle.

Hydrostatic transmissions
 

justalurker . wrote:
On Sep 23, 4:49 pm, Jim wrote:
Just took delivery of my first ever lawn tractor with a hydrostatic
transmission. Not being a Lexus I don't expect silence, that said when
engaging forward or reverse it's not exactly quiet either.

Curious to learn from others what "normal sounds" to expect. I'm
purposely not including the sounds I'm hearing so I can instead compare
users descriptions to the sounds generated. Hopefully with your inputs
I'll have an idea of what is normal and what should be of concern.

Make sure you are a full throttle when moving.
Low engine speeds can generate more hydro noise.

Moving and mowing are always done at WOT.

I agree about the throttle. Amazing how many people don't realize these
little machines have two engine speeds, idle and full throttle.