I noticed over the winter that my 40D would not hold speed in reverse using the "cruise" when blowing with the 3 pt snowblower. It would initially seem fine when set, but loose speed gradually - I would have to reset several times or not use the speed control at all. No big deal.......just have the dealer check it out when convenient for myself (plenty of warranty time left)......he did recently - said he adjusted a sensor and it was fixed. Well, I put it to the test and it is NOT fixed. Same problem. Any thoughts?
Speed Control Problem
- Thread starter PLanger
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tc35dforme
Platinum Member
Planger,
The speed control is a pretty basic set-up. Its not as high-tech as an auto cruise control.
Here's the deal...When you snap on the speed control switch, you energize a electromagnet that grabs the hydro-pedal linkage. That's all that happens...about as sophisticated as jamming a stick on the pedal.
You may have to adjust the gap between the magnet and the linkage to make sure that the magnet can hold with enough force. The is the size of a hockey puck and is under the deck inboard of the hydro linkage. New Holland spec shows a gap between 0.20 - 0.60".
If the gap is okay...maybe you have a bad magnet or a bad switch that is causing an intermittent connection.
The speed control is a pretty basic set-up. Its not as high-tech as an auto cruise control.
Here's the deal...When you snap on the speed control switch, you energize a electromagnet that grabs the hydro-pedal linkage. That's all that happens...about as sophisticated as jamming a stick on the pedal.
You may have to adjust the gap between the magnet and the linkage to make sure that the magnet can hold with enough force. The is the size of a hockey puck and is under the deck inboard of the hydro linkage. New Holland spec shows a gap between 0.20 - 0.60".
If the gap is okay...maybe you have a bad magnet or a bad switch that is causing an intermittent connection.
jinman
Rest in Peace
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In addition to the things mentioned by TC35Dforme, you might also check that you are not inadvertently getting some type of lubricant between the electromagnet and the hydro pedal flange. You should be careful with grease or spray lubes in that area.
wihakowiSteve
Bronze Member
Don't know about your problem with the speed control "creaping" down but I do have a different question re: speed control.
When I am using the speed control (TC35D), the only ways to "disengage" it are to 1) flip the speed control off or 2) step on the brakes. In either case, the tractor comes to an immediate stop from whatever speed it was going. No gradual winding down or coasting to a stop. Meaning that if the tractor was going 12 or 15 mph on the road, it really stops with a substantial jolt and a shutter! If there is anything in the bucket, it risks being thrown out!
Any thoughts on whether this is normal? I almost cannot use the speed control when I am under any load or going at any speed for fear that I will dangerously jolt something on the tractor - or my body - when I turn it off!! One of the reasons I went with the hydro was so that I could control movement smoothly and finely. The way the speed control works certainly defeats this desire.
Thaaaaannnnkssks (just turned offthe speed control!!) - Steve
When I am using the speed control (TC35D), the only ways to "disengage" it are to 1) flip the speed control off or 2) step on the brakes. In either case, the tractor comes to an immediate stop from whatever speed it was going. No gradual winding down or coasting to a stop. Meaning that if the tractor was going 12 or 15 mph on the road, it really stops with a substantial jolt and a shutter! If there is anything in the bucket, it risks being thrown out!
Any thoughts on whether this is normal? I almost cannot use the speed control when I am under any load or going at any speed for fear that I will dangerously jolt something on the tractor - or my body - when I turn it off!! One of the reasons I went with the hydro was so that I could control movement smoothly and finely. The way the speed control works certainly defeats this desire.
Thaaaaannnnkssks (just turned offthe speed control!!) - Steve
bgott
Veteran Member
Put your foot on the pedal, disengage the speed control and slow it down yourself. If you were cruising along and saw a major pothole in the grass right in front of you you'd want it to stop right now, not slow down leisurely.
MikePA
Super Moderator
<font color=blue>Any thoughts on whether this is normal?</font color=blue>
Given how speed control works, i.e., using a magnet to hold the HST lever at a fixed position, I surmise that once the speed control is disengaged, the standard HST pedal action takes over and it automatically returns to neutral.
Given how speed control works, i.e., using a magnet to hold the HST lever at a fixed position, I surmise that once the speed control is disengaged, the standard HST pedal action takes over and it automatically returns to neutral.
wihakowiSteve
Bronze Member
Many Thanks bgott --- Ahh Haa! Sometimes the simplest, most obvious solutions are the best ones! Will give that a try when and if the rain stops (Central Vermont). Probably should work, just means I'll have to be sitting on the seat or near it, rather than my standing style of "cruisin".
Wish we could ship some of this rain out to Colorado & Arizona, I'm just sick for the folks and trees out there!!
Steve
Wish we could ship some of this rain out to Colorado & Arizona, I'm just sick for the folks and trees out there!!
Steve
jinman
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Well Steve, Bgott has already given you the only solution to your problem I know of. I'd equate remembering to put your foot on the pedal with the process of shifting a standard shift vehicle. Learning to depress the clutch at the same time you let off on the accelerator and shift the gears is very hard until you get used to it. Once learned, it becomes 2nd nature, even if you don't drive a standard shift for a couple of years. I keep my right foot close to the pedal and when I disengage the cruise, I move my foot to the pedal before pressing the button or the brakes. It's automatic with me.
As an aside, when my tractor was new, the hydro pedals would stick. More than once, I got a real scare because the pedals didn't immediately return to neutral. I think an immediate stop is the safest operation. I'm not so worried about the pothole, but I have come face-to-face with a tree when I miscalculated my turn radius. And once, on a curve on my county gravel road, I met a car on my side of the road as I came around a curve. In both instances, I was able to stop immediately by just tapping the button. If you unlock the brake pedals, you will see that you can do differential braking with cruise enabled. In my opinion, this is the most dangerous feature because you have to remember to push both pedals if you want to break out of cruise.
I'm not sure how to make this feature any different than it is, but I'm sure glad it is there. I grew up using a four-speed Ferguson and I own a Ford Jubilee in addition to my Boomer. On those, you just put it in gear, set the accelerator to the desired speed, and go. I'm glad I don't have to hold the hydro pedal down all the time while mowing. My right leg would get tired really quickly./w3tcompact/icons/frown.gif
As an aside, when my tractor was new, the hydro pedals would stick. More than once, I got a real scare because the pedals didn't immediately return to neutral. I think an immediate stop is the safest operation. I'm not so worried about the pothole, but I have come face-to-face with a tree when I miscalculated my turn radius. And once, on a curve on my county gravel road, I met a car on my side of the road as I came around a curve. In both instances, I was able to stop immediately by just tapping the button. If you unlock the brake pedals, you will see that you can do differential braking with cruise enabled. In my opinion, this is the most dangerous feature because you have to remember to push both pedals if you want to break out of cruise.
I'm not sure how to make this feature any different than it is, but I'm sure glad it is there. I grew up using a four-speed Ferguson and I own a Ford Jubilee in addition to my Boomer. On those, you just put it in gear, set the accelerator to the desired speed, and go. I'm glad I don't have to hold the hydro pedal down all the time while mowing. My right leg would get tired really quickly./w3tcompact/icons/frown.gif
wihakowiSteve
Bronze Member
jinman - thanks for the reminder on how second nature things get after you do them for a while compared with when you were first learning and thought you'd "never get it"! When I first got my TC35, I was used to a 2 stick FEL control and thought I would never get used to back = up, forward = down, etc. Now it is so second nature that I can instruct someone else on where I want the bucket without hesitation while I am standing in front of the FEL. I did try the "put your foot on the pedal and ease up" method of shutting down the speed control today and it was just what I was looking for! I'm sure it will become routine after several days.
Interesting about the pedals sticking - or, in my case simply taking a few seconds to go back to "neutral" - and how uncomfortable that can make you feel. Mine seem to only do it when I am headed UP hill under load! When I am pulling up to something, I need to be pretty careful that the tractor doesn't over-run my desired stopping point - like 4 inches short of the truck bed! I hope I don't have to get used to using the brakes to actually stop, that would be really going back to the basics!!
Steve
Interesting about the pedals sticking - or, in my case simply taking a few seconds to go back to "neutral" - and how uncomfortable that can make you feel. Mine seem to only do it when I am headed UP hill under load! When I am pulling up to something, I need to be pretty careful that the tractor doesn't over-run my desired stopping point - like 4 inches short of the truck bed! I hope I don't have to get used to using the brakes to actually stop, that would be really going back to the basics!!
Steve
tc35dforme
Platinum Member
steve,
Is it time to take up a bit on the hydro tension spring ??
I found that after about 40 hours, I needed to take a turn or so on the spring link to get the crisp action back on the hydro peadls.
Is it time to take up a bit on the hydro tension spring ??
I found that after about 40 hours, I needed to take a turn or so on the spring link to get the crisp action back on the hydro peadls.
