Power in Reverse / removing mower deck on Super

rrager · #1 12-14-2011, 02:07 PM

Hey all,

Some time ago I asked about the easiest way to remove my 60" Haban deck from my 2082. I had been jacking up the front of the tractor and dragging it out sideways. Several folks suggested blocking the deck wheels and driving backwards over the deck.

Well I tried this a few weeks ago with limited success. I tried it on level ground and the tractor just did not have the guts to get over the deck. I moved to an area with a significant grade and it worked, but still not as easy as I would have liked (still easier than dragging it out side ways though).

I have also had an issue (got hung up) when I was mowing a rough area of my property and I needed to back up, but it wouldn't budge.

My question is this:
How much power/torque should my Super have in reverse?

I know that I am due to change the Hy-Tran and filters this winter, but are there any other issues I should look at correcting. Maybe hydrostatic drives just aren't for me. Maybe I've just spent too many hours on bigger equipment and I get frustrated at this type of thing.

Please help,
Ross

Methos · #2 12-14-2011, 02:10 PM

Ross, it should drive right over the deck. Is your hy-tran low? You may have to bump up your time frame on that oil and filter change.

Oak · #3 12-14-2011, 05:05 PM

Ross, I don't think many hydro Cubs are very powerful in reverse. Did you put a short 2X6 from the wheel to top of the deck to give it an incline? I would do the same on the other side of the deck so the front of the tractor doesn't come down hard on the front axle.

Leadslingingdaddy · #4 12-14-2011, 06:15 PM

I found taking off the front wheels of the deck and using 2 small bricks for a boost up works great.....Just put in reverse and give it a enough gas to go right over it...then reverse the process with the brick and drive back over it to put it on....

cub123 · #5 12-14-2011, 06:16 PM

Ive never had any issue with reverse in any of my hydros, it should have more than enough power to back over the deck. It should either spin out or kill the engine, but it should not sit and buzz. I agree with duke, it sounds like your oil level, or I've even heard that if the rear end is loose it can mess mess with it working in reverse, but that's probably not the issue.

jbollis · #6 12-14-2011, 06:27 PM

The way the hydro transmission is built , it will have the same amount of power in both forward and reverse when working properly.

I would check the fluid level and change the filter if needed.

Are you sure that a wheel was not spinning ?

ol'George · #7 12-14-2011, 06:54 PM

I would check to see if you are getting full movement of the trunion linkage into the reverse position

Vince_o · #8 12-15-2011, 06:01 AM

Like George says check your movement. I realy think you need to change your oil and filter. Be sure it a NON foaming oil, I wont open the can of worms, I use hytran, or the green bucket of coastal in my hydros.

Another thing to look at. Yes the preasure should be the same in forward and reverse. I have yet to have a hydro go as fast or as strong in reverse. This is just my thinking, so take it for waht it worth, and please no coments from Duke! LOL Tater chip guy

The hydro pushing the tractor for the weight aspect going forward is easier to do. In reverse the pulling of the weight of the tractor isnt as easy and for me I get a lot of wheel spin. The 2500 and 3000 series tractors whith the same trannys as the old ones are about the same way. Ive been of the 400 deere with sunstrand pumps that are this way too. Even the 318 dosnt go as fast in reverse as forward, but all have more than enough power to spin the tires in reverse.

Regaurdless the hysro should have drug that deck all around under the front wheels, been there dont this many a time. I know that some of the compact deere machines have small ramps built on the the decks so you can drive over the deck to take it off.

jbollis · #9 12-15-2011, 07:23 AM

Quote:

Originally Posted by Vince_o

Another thing to look at. Yes the preasure should be the same in forward and reverse. I have yet to have a hydro go as fast or as strong in reverse. This is just my thinking, so take it for waht it worth, and please no coments from Duke! LOL Tater chip guy

The way the hydro's are built will make equal power forward and reverse. There is a swash plate in the trany that pivots. There is a bump stop on the side that it pivots to for reverse. Up to that point there will be equal pressure as well as equal power and speed.

rrager · #10 12-15-2011, 08:20 AM

Thanks for the input everyone. I'll check on some of those things this weekend if I get a chance. It's in the basement for the winter, but I can still check that stuff.

I doubt it's a fluid level issue, as it has been this way since I bought it, and the fluid has been checked routinely.

I do think that new fluid and filter would help. For all the more travel that the hyrdo lever allows in reverse, if I pushed the lever forward the same amount the tractor doesn't do much either. I have to push the lever forward a fair amount to get reasonable speed for mowing.

But the linkage, that may be the key. When i brought it home the linkage was loose. This made for a few scary trips through the steep back yard. I tightened the lever, but maybe it wasn't centered where it should have been.

Any other suggestions?
Thanks,
Ross