I'm missing something: Front-end 4-wd

[tradosaurus]

You seem to have a reading comprehension issue...

I said EXACTLY what you posted from your manual...

"To prevent damage to power train, do not engage differential lock when one wheel is spinning and the other is completely stopped."

Nothing more.

I have my owners manuals for every piece of equipment and the tractors I own but I prefer the shop manuals which I have as well.

Next???

.....always cease movement.

I guess you stating "always cease movement" means something different.

 

[Raul-02]

I am pretty sure it states that in your owners manual under operating, if you bother to read it that is.

When I said "First I heard of that"
I was being polite.

 

[gstrom99]

Back on topic: Raul, did you figure it out?

 

[Raul-02]

Back on topic: Raul, did you figure it out?

Yah. The Engineers broke my heart, either that or the marketing trash did. Someone decided to put an open differential in it when for a few hundred more they could have put a Detroit locker in there.

 

[Vigo327]

Just to clarify... "the differential lock should be engaged only when the driving clutch is engaged" means clutch pedal pushed down. In other words, do not apply the diff lock while under power.

Now, i get the manuals and the reasoning etc. However for me, i usually only use the diff lock in 1st gear low range and when im sitting almost still with one rear tire spinning at 1 mph on my tiny tractor, there is very little momentum to bang against that mechanism, so i'm not worried about it. But on a bigger tractor, with more weight and traction, moving faster, i would certainly not try to engage it under power. Ultimately it's similar to trying to upshift a manual transmission without using the clutch or even changing throttle.. possible, but abusive and not advisable.

 

[Raul-02]

Well, I asked Kioti. Their engineers want to have it both ways.

"Thank you for contacting KIOTI. The diff lock should be engaged at full stop. If it does not engage immediately move the unit slightly forward or reverse and attempt to engage the diff lock again."

Which is pretty much how I've been doing it.
To the best of my recall, I have never successfully engaged the Diff Lock while standing still. I always have to move the tractor.
I do find it odd that such a simple one-line explanation was not in the manual.
It seems to me it's like shifting gears on a manual transmission without a clutch. I drove a VW Bug that way for some several months. The clutch was shot so, I just didn't use it. After a while, I got rather good at never grinding the gears.

 

[rScotty]

Why is this differential locking argument even happening? You NEVER NEVER should engage the diff lock when a wheel is moving. That is basic. Fer Cripes sake, look at the parts diagram sometimes. It's self-explanatory. Want to scrap a warranty along with the rear end gears? That's the best way I know of. And you can't even argue with the shop mechanic. When he takes the rear end apart, the damage and the cause is there for anyone to see. No other way for it to happen.

Engaging a diff lock is nothing at all like shifting gears without a clutch... that can be done with practice. Engaging the diff lock is more like jamming a one inch tempered steel pin into a matching hole drilled in the support web of a gear. The last thing anyone wants is for the gear to be spinning when that pin drops in the hole.
rScotty

 

[ovrszd]

I am pretty sure it states that in your owners manual under operating, if you bother to read it that is.

Two examples.

 

[ovrszd]

Here's all the warnings on using the differential lock in my MX5400 manual:



So looks like you don't have to "cease movement" to operate the diff lock. Have you bothered to read your manual, mommy?

If one wheel is spinning and the other is not wouldn't you have to stop that action to engage the diff lock little Johnny???

 

[ovrszd]

I guess you stating "always cease movement" means something different.

Do you consider one wheel spinning as movement? I do.

 

[ovrszd]

In my uses Lockers of some type are essential. I have limit slips, auto lockers, electric lockers, mechanical lockers and spools.

It's critical to not misuse any of them. Failure will eventually result.

In regards to the OP's concern. I frequently have a front tire off the ground with my FWA tractors with FWA engaged. The one with limit slip in the front will continue to turn the lifted front tire with movement even though it's in 2wd. The two with open diffs will most times carry that lifted tire forward with no rotation while in 2wd. I don't see what he described as a problem at all.

 

[tradosaurus]

If one wheel is spinning and the other is not wouldn't you have to stop that action to engage the diff lock little Johnny???

So who pi$$ed in your cornflakes today?

 

[ovrszd]

So who pi$$ed in your cornflakes today?

I was replying to your childish comment in which you called 5030 "mommy". Focus Little Johnny.

 

[tradosaurus]

I was replying to your childish comment in which you called 5030 "mommy". Focus Little Johnny.

So you are 5030's white knight now?

 

[ovrszd]

So you are 5030's white knight now?

He most certainly doesn't need protected from you.

 

[Smokeydog]

My wife put her foot down with this silliness.

 

[ovrszd]

Nice Mod Smokeydog!!

 

[Smokeydog]

We use the diff lock regularly on our hillside farm. Might stop, might not. Takes rotation to engage after you press the pedal. Certain routine places Mowing, grading driveway, moving tree debris up steep incline. Can engage while moving before a trouble spot and disengage after the area. HST control makes this a seamless transition. Biggest beef is with the Kubota pedal design. My footwear traction is often compromised.

 

[ovrszd]

We use the diff lock regularly on our hillside farm. Might stop, might not. Takes rotation to engage after you press the pedal. Certain routine places Mowing, grading driveway, moving tree debris up steep incline. Can engage while moving before a trouble spot and disengage after the area. HST control makes this a seamless transition. Biggest beef is with the Kubota pedal design. My footwear traction is often compromised.

Well stated. And describes my engagement/disengagement practices as well.

I like your pedal Mod. With bulky boots on it's hard to know when you've got it engaged until you apply power. My Kubota RTV is the worst. My old Ford is the best factory designed pedal.

 

[Smokeydog]

Well stated. And describes my engagement/disengagement practices as well.

I like your pedal Mod. With bulky boots on it's hard to know when you've got it engaged until you apply power. My Kubota RTV is the worst. My old Ford is the best factory designed pedal.

Ford 4500 backhoe had a nice design pedal.

Pedal for B26. Split shaft collars made for a easy mod.