MMM arms dropping on 1026R

I am not sure on the new machine's, but with the independant lift on the 2x20 series it is quite normal. Is there a knob/selector that you can lock them up with?

2305 is exactly the same way. Use the rate of drop valve fully closed to lock the lift arms in the up position.

Just looked at my 1026R, it has not been started today and the arms are down. I'm not sure and I will try it myself, but seems you could raise the arms and then put the deck hight adjustment in the lock mode and that should stop that.

yup, those lift cylinders are not made for "keeping up" or holding up anything, they are strictly for lifting and lowering

has15 said:

Just looked at my 1026R, it has not been started today and the arms are down. I'm not sure and I will try it myself, but seems you could raise the arms and then put the deck hight adjustment in the lock mode and that should stop that.

Click to expand...

I just, ths evening, recalled there is that lock position on the deck height adjustment... so, I suspect you are on-target here... that this will work. Thanks!

has15 said:

Just looked at my 1026R, it has not been started today and the arms are down. I'm not sure and I will try it myself, but seems you could raise the arms and then put the deck hight adjustment in the lock mode and that should stop that.

Click to expand...

That will help only if you are using the mechanical lift of the arms to raise and lower the deck, the independant lift removes the deck from this equation. And here is what will happen. The deck and arms will settle to the lock up position. The weight of the arms will now still want to continue their descent (due to their own weight) and will unless you lock it by closing the rate control knob. Here is an extract from the manual.

Thanks for this tip! I totally missed this while reading through the manual. Although it sounds like an unnecessary pain, I'll try it tomorrow. So, first raise the deck fully, put mower height adjustment in Lock position, then rotate Rate of Drop control fully clockwise and deck should truly lock in the upright position. Right?

Another question. In another thread it was mentioned that the dummy plug on the lower dash was for an Independent Mower Control Switch. Does Deere have any plans to actually make this available? What advantage would this switch have?

drumdoctor said:

Thanks for this tip! I totally missed this while reading through the manual. Although it sounds like an unnecessary pain, I'll try it tomorrow. So, first raise the deck fully, put mower height adjustment in Lock position, then rotate Rate of Drop control fully clockwise and deck should truly lock in the upright position. Right?

Another question. In another thread it was mentioned that the dummy plug on the lower dash was for an Independent Mower Control Switch. Does Deere have any plans to actually make this available? What advantage would this switch have?

Click to expand...

Will lock the 3-point for sure.... that lever in the picture is for the 3-point....
not the mower....and the rate of drop control is for the 3-point, as I understand it.

I just lock the mower adjustment .... arms seem to stay up fine.

drumdoctor said:

Thanks for this tip! I totally missed this while reading through the manual. Although it sounds like an unnecessary pain, I'll try it tomorrow. So, first raise the deck fully, put mower height adjustment in Lock position, then rotate Rate of Drop control fully clockwise and deck should truly lock in the upright position. Right?

Click to expand...

If you have the mechanical lift only this will work. You do not need to use the mower height knob.

If you have the independent lift the mower control height in the the full lockup position is only way to hold the deck up. Note that the deck will drop slightly with this arrangement.

drumdoctor said:

Another question. In another thread it was mentioned that the dummy plug on the lower dash was for an Independent Mower Control Switch. Does Deere have any plans to actually make this available? What advantage would this switch have?

Click to expand...

Sorry, I am unframiliar with this option. It just doesn't make sense with the mechanics of these lifts. Are your referring to the cruise control switch?

It's kind of the "mystery" option. You can see a wire called out to this non-existent switch in the wiring diagram. There's a plug below the dash for the switch. However, there's no switch listed in parts. There's nothing mentioned in the manual or any other place on the Deere site.

So it's normal for the deck to lower slightly. This is a slight pain as it won't always keep the wheels from touching the ground as I work with the loader.

I've found that you must disconnect the hydraulic line from the yellow terminal going to the mower and hook up the corresponding yellow line from the loader otherwise the "recirc" won't work right. (Bucket won't drop quickly). But once the hydraulic line to the mower is disconnected it's impossible to raise to "full up" after it gently floats down a little from the locked position.

drumdoctor said:

It's kind of the "mystery" option. You can see a wire called out to this non-existent switch in the wiring diagram. There's a plug below the dash for the switch. However, there's no switch listed in parts. There's nothing mentioned in the manual or any other place on the Deere site.

Click to expand...

I have no idea...maybe a EU option like the cabs?

So it's normal for the deck to lower slightly.

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t

Yup, discussed a lot on the site if you search.

Very simple, remove the MMM to do any FEL work, it's so east and you won't loose the ground clearance or risk damaging the deck while your paying attention to the loader.

Click to expand...

I've found that you must disconnect the hydraulic line from the yellow terminal going to the mower and hook up the corresponding yellow line from the loader otherwise the "recirc" won't work right. (Bucket won't drop quickly).

Click to expand...

Regen or regenerative is the proper term.

But once the hydraulic line to the mower is disconnected it's impossible to raise to "full up" after it gently floats down a little from the locked position.

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Again, just remove the MMM for FEL work...

Independent Lift Info.

Here is some info on how the independent lift works.

http://www.greentractortalk.com/forums/showthread.php?817-2000-Series-MMM-Independent-Lifts

And I agree with Ken, remove the mower deck to do loader work. :good2:

Will MMM still operate?

RandyM said:

That will help only if you are using the mechanical lift of the arms to raise and lower the deck, the independant lift removes the deck from this equation. And here is what will happen. The deck and arms will settle to the lock up position. The weight of the arms will now still want to continue their descent (due to their own weight) and will unless you lock it by closing the rate control knob. Here is an extract from the manual.

Click to expand...

Ok by locking the rock shaft with the rate control knob will this also keep the MMM from functioning correctly when its installed. in essence what im asking is can you use the MMM functions in a mechanical lift setup (not independent) but keep the rock shaft from moving if you use the rate lock knob. thanks

hudson169 said:

Ok by locking the rock shaft with the rate control knob will this also keep the MMM from functioning correctly when its installed. in essence what im asking is can you use the MMM functions in a mechanical lift setup (not independent) but keep the rock shaft from moving if you use the rate lock knob. thanks

Click to expand...

To sum it all up, if you are using the rockshaft to lift your deck, and you lock out the rock shaft you have in a sense locked out your mmm. The thing you have to keep in mind is that the rockshaft and the independent lift is only the lifting mechanism for the deck. If you lock the deck in the full up position (transport) via the cutting height control knob you then have full use of the 3pt. I hope this answers your question. What is it you are trying to do?