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post #1 of 12 Old 05-13-2018, 09:58 PM Thread Starter
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Question Forward - Reverse pedals donít return to neutral

This is on a 2015 Craftsman Pro-7000 917.253792 with a GenTrans hydrostatic 415663 VATR (Husqvarna built) (same as Husqvarna & Ariens). Mower only has 60 hrs on it.

When it was new, the shift pedal would always return to neutral anytime my foot was off the pedal(s):

PROBLEM: Foot Pedal shift rod or levers bind when clutch-brake pedal is down; pressing the clutch-brake down does not ďkickĒ the shift mechanism into neutral; Foot Pedal will generally return from fwd to neutral when clutch brake is up & seems to be ďloose/freeĒ (not binding), but never will return by itself from R to neutral anytime. It is difficult if not impossible to engage either Fwd or R with Foot Pedal when clutch brake pedal is down; if you stomp on the clutch/brake several times & then let it up, it might engage F or R OK, but sometimes it ďgrindsĒ when pressing Fwd & will not engage until more clutch-brake stomping is done. This problem has been getting progressively worse.

I have inspected the rods & the visible accessible mechanism on the trans (much of the shift components are under plastic covers on the trans, so it is hard to see, and the trans is not accessible from the top). There are no sticks stuck in it anywhere & have cleaned & air-blasted away all old grass; rods do not appear to be bent, are free to move at their attaching ends, & are not binding on anything.

1, Has Anyone experienced this & solved it?
2. How does one remove the rear under-seat/deck fuel tank so it might be possible to see & touch the trans shift assembly from the top?
3. How do you remove the transaxle if necessary? (Will it just drop down with mow-deck in place?)
4. Does anyone have a link to, or picture of, the trans top section showing all the shift mechanism (the online parts diagram is useless)

TIA
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post #2 of 12 Old 05-26-2018, 05:36 PM
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Re: Forward - Reverse pedals donít return to neutral

I do not know the answer, but I noticed on my 247.27038 the brake pedal shaft runs across inside the forward/reverse pedal shaft. Maybe the shafts are binding, and that is causing the return to neutral problem? I know from another thread these parts on the frame are a weak point, so I wonder if this might be the issue? https://www.mytractorforum.com/14-cra...e-upgrade.html
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post #3 of 12 Old 06-12-2019, 10:27 AM
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Re: Forward - Reverse pedals donít return to neutral

same problem . I removed fuel tank for access to pulley system . Pain in the butt but i had removable section holding tank .If you do this watch out for vent hose hooked to tank at fuel fill . i broke the tit on tank during removal . I checked everything and looked ok. oiled up linkage and reassembled . not fixed . went to youtube and found website for general transmission rs-800 . troubleshooting and repair. I took mine apart again and found debris under rear pulley. cleaned it out and mower works great .You have to remove rear pulley system to clean out under it , its in a cavity . ALC
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post #4 of 12 Old 06-12-2019, 12:28 PM Thread Starter
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Arrow Re: Forward - Reverse pedals donít return to neutral

Quote:
Originally Posted by Alfred Coleman View Post
same problem . I removed fuel tank for access to pulley system . Pain in the butt but i had removable section holding tank .If you do this watch out for vent hose hooked to tank at fuel fill . i broke the tit on tank during removal . I checked everything and looked ok. oiled up linkage and reassembled . not fixed . went to youtube and found website for general transmission rs-800 . troubleshooting and repair. I took mine apart again and found debris under rear pulley. cleaned it out and mower works great .You have to remove rear pulley system to clean out under it , its in a cavity . ALC
thanks - i'll check that all out - very helpful

here is the rs-800 link for anyone interested https://www.generaltransmissions.com...tor/rs-8003-fr

or google it for more ideas - https://www.google.com/search?client...71.Xsi3-7YxbcY

and this !
https://outdoorpowerequipment.com/20...transmissions/
"general Transmissions has introduced a dust cover as an upgrade item for its Element V RS800 line of continuously variable transmissions for lawn tractors. The upgrade prevents lawn debris and dust from accumulating around the primary pulley and its related components. Debris buildup can potentially interfere with the forward-to-reverse shift operation."

. . . do tell

- update

2 days ago - latest problem is that the disengage function did release the axle for freewheel movement -

so i tried blasting the "pocket" where the levers hide with a high pressure (3000 psi) water blast from the side & from below - no debris came out - but the disengage began working again , & the pedal shifter occasionally returns to neutral by itself but mostly it just jams in either fwd or reverse until one kicks the hell out of it while "clutch/brake pedal" is down

i'm done with the seasonal field mowing (CA green is turning "golden" this week), so now have the time to maybe cut access panel hole in the deck to see if i can get at the mechanism

- yup, i looked at the fuel tank removal idea - your experience is spot-on

i truly hate this thing except for the tight-turn & magnetic blades features

Last edited by emoze; 06-12-2019 at 12:43 PM.
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post #5 of 12 Old 06-12-2019, 09:49 PM
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Re: Forward - Reverse pedals donít return to neutral

I experienced a similar problem on my JD GX345.
The guy I bought it from even mentioned that you had to hook your toe under the fwd pedal to get it to return to neutral.
Reverse pedal never seemed to be a problem.
After dealing with that for a couple months, I decided to try to "fix" it.

Took the platform off; nothing out of the ordinary.
Thought for sure there was something on the hydro linkages that was binding up. Nope.

Took quite a while, but I finally found out that the main pedal shaft was binding up on the sintered (?) metal bushings in the frame sides.
You could still move the pedal but it was snug, to say the least.
Had a heck of a time getting it apart. Cleaned everything up, sanded off the shaft and made sure it slipped through the bushings before re-assembly. It's worked as it should ever since.
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post #6 of 12 Old 06-13-2019, 12:44 PM Thread Starter
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Thumbs down Re: Forward - Reverse pedals donít return to neutral

'yup - that binding shaft issue has been suggested before - it is not the problem on my rig

i'm going to try to find the factory-fix-it "cover" - mine is a 2015 model Craftsman 917986410 , so maybe that cover will help in the future

check this out - they GT KNOW about the problem Hard Shifting Issue Model RT400
http://services.generaltransmissions...ng%20Issue.pdf

RT400 - Home

AND the rs-800
http://services.generaltransmissions...20cleaning.pdf

after i first dismantle the thing as suggested above to get it all cleaned out

-OR -

if we have to take the whole **** thing apart anyway . . .

- has anyone tho't about just retrofitting a hydro unit from an old MTD product ????

oops - in my O.P. - i tho't these things were hydros - 415663 VATR - NOT SO
- the new miracle CVT 2014 - https://todaysmower.com/cvt-automatic/

current replacement price - $780 + ship
https://parts.ariens.com/product-p/21547259.htm

Last edited by emoze; 06-13-2019 at 01:43 PM. Reason: update
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post #7 of 12 Old 06-13-2019, 03:18 PM Thread Starter
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Help Re: Forward - Reverse pedals donít return - VATR ID info

ID'ing the CVT unit - update from parallel thread -

- in my O.P. - i tho't these 415663 VATR things were hydros - NOT SO
see - the new miracle CVT 2014 - https://todaysmower.com/cvt-automatic/

"RS 800 & RT 400.. the first is for 23 inch tall wheels.. the other is for 20 inch tall wheels.."
https://www.mytractorforum.com/14-cr...-question.html

per that my 415663 is a RT400 - no "towing capacity", (but i knew that when i b'ot it & did'na need it)

cannot find any source for debris cover -

there is a GT79452 Transaxle Anti-Debri Kit for the rs800 - at Amazon

service manuals for both models here
Service Manuals - Home

video of where the RT400 parts are & how replaced

maybe this will help another somebody

Quote:
Originally Posted by emoze View Post
'

check this out - they GT KNOW about the problem Hard Shifting Issue Model RT400
http://services.generaltransmissions...ng%20Issue.pdf

RT400 - Home

AND the rs-800 - same problem
http://services.generaltransmissions...20cleaning.pdf

]

Last edited by emoze; 06-13-2019 at 03:43 PM. Reason: updated info
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post #8 of 12 Old 06-13-2019, 08:15 PM Thread Starter
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Whew LAST Post Re: Forward - Reverse pedals donít return -

OK - last post on this -

this is incorrect
"RS 800 & RT 400.. the first is for 23 inch tall wheels.. the other is for 20 inch tall wheels.." (well, maybe true on a JD?)

GenTrans (today on Amazon answers) says "The RT400 unit is sold solely to John Deere. Husqvarna only purchased the RS800, made for them for Craftsman, Poulan Pro, Ariens and Husqvarna."

so i do have an rs800

i pulled out the gas tank today so i could get at the pulleys & levers (as posted above by Alfred) - and yes the thing was full of hardened grass debris but no rocks or sticks - cleaned it up . . . oh,oh! . . . mechanism still won't return to neutral -

Aha! inspection shows the Variation Kit has a broken arm on one side - - most likely the result of having kicked the H out of the pedals trying to get it to shift, (. . . bent or busted as i said above) - that also explains why sometimes it would not pull well uphill and/or stick in fwd or rev even after clutching it to a stop
- a caution in that for the next guy

- that's a $20 kit + $11 tool - not too bad - then ya gotta also buy the anti-debris kit $59 - so under $100 to fix it + hours

alternative - $375 for a new rs800 with the anti-debris kit installed - either way ya gotta drop the trans to fix

(subtract $100 for the above fix-it - net cost to have running mower = 275 - done!) (like new, one hopes) -

i'll repair the oem rs800 with the new kit and keep as a backup or make somebody a great Craigslist deal on it


Quote:
Originally Posted by emoze View Post
ID'ing the CVT unit - etc

this is incorrect
"RS 800 & RT 400.. the first is for 23 inch tall wheels.. the other is for 20 inch tall wheels.."
https://www.mytractorforum.com/14-cr...-question.html

there is a GT79452 Transaxle Anti-Debri Kit for the rs800 - at Amazon - also need the related special tool

service manuals for both models here
Service Manuals - Home
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post #9 of 12 Old 07-06-2019, 09:33 PM Thread Starter
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Exclamation FIXED Re: pedals donít return to neutral - won't shift

well - OK - one last post - with pics of the problems

good news - $376 & a day's work later - the NEW CVT works like a new one should !!

1. as another post suggested above - getting the gas tank out & back in is the biggest problem with this whole project - once that's out, it is quite easy to drop the transaxle & replace it

2. i was wrong about the broken Variator levers - it was just "loose" & restricted by packed grass to the point of immobility

3. it ain't just grass packed in the variator pulley section that you need to worry about - see my pics below

4. the new version transaxle has a cover and "fan" on the variator section which should help (but will not prevent" future packing of grass into that section (that's the $70 kit you can buy)

5. the REAL PROBLEM was the front "shifter section" - the section that is under a cover - also packed to point of immobility with hard grass - which is why the pedals would not respond nor go to neutral & why i had to "kick-the-H" out of 'em to get the thing driving - (which of course tended to "bend" some rods & loosen the variator arms adjustment) - (i had to do a bit of rods/pedal straightening to fix that)

- nothing in the "new version trans is going to protect you/us from this problem -

and there ain't no way to clean it except for dropping the trans & taking off that plastic cover - now BOTH covers if you have the "upgrade"


6. good-er news - you CAN FIX these things by taking off the covers & clearing all the hard-pack-grass from both sections - the cleaned orig'l cvt is just fine now - a good spare, eh?

- it's just going to be a day's work

p.s. - if you buy a new CVT - you will need one un-supplied part - a 1/4" nylock for the main shift rod

here are some pics

.
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post #10 of 12 Old 09-17-2019, 04:10 PM
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Re: FIXED Re: pedals donít return to neutral - won't shift

Emoze, you are the man! Thank you sir.

I literally just sent in my lawnmower - Hus. YTA24v48 in for warranty service because I had the pedals getting stuck in forward/reverse and noticed grease leaking out of one of the wheels axle section of the trans. The rubber grommet was sticking out and I pushed it back in temporarily.

Anyway, Lowes called me back and said they'd send me a gift card for $1800 to replace the lawnmower and that the company doing work on the lawnmower would ship it back to my house.

So yay... can't wait to get my hands dirty and dig into it. I'd rather use the money elsewhere and keep using that lawnmower. I'll let you guys know how it turns out.
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post #11 of 12 Old 09-19-2019, 10:38 PM
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Re: Forward - Reverse pedals donít return to neutral

Wow! Emoze, is that whole tranny case plastic? Yep, there was a lot of stuff packed in there. Good sleuthing!
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post #12 of 12 Old 09-23-2019, 01:29 PM Thread Starter
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Re: Forward - Reverse pedals donít return to neutral

yes - all plastic - sure wish we could still get those old hydrostatics like my 20+ yrs MTD-powerkraft has

glad i was able to help others out with this

my mower has worked fine all season since the repair above

in hindsight, the rig was working "almost OK" when put away for the season - what happened over winter storage was that those moist grasses packed into the mechanism just solidified into "rock" so when i got the rig out the next spring it simply din't work at all

- so we probably don't want to do is blast it with more water that might only accelerate the solidification

- i have not yet figured out how to effectively blast out any potential culprit accumulations but just b'ot a long-tube air blaster from HF that i'm gonna try

i may put the refreshed older trans on craigslist - or maybe look for a similar mower that has the problem & can be gotten "cheap" - saw one recently advert "as is" ..... which is a clue
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