186D power shift question

[suburban99]

I've had my 186D a couple of weeks now and love it. I think I know the answer to this but will ask anyway.
The 186D has a clutch and a 9 speed power shift tranny. When operating the loader I run into the pile and if I don't push in the clutch, the engine will stall, before I shift to Reverse. What i mean is I can't sit still in 1-or-2-or 3 with brake on without applying the clutch. This seems normal to me as the tractor does not have a torque converter..or is tranny out of adjustment? I don't have a user manual...

 

[rScotty]

I think that is normal. As you say, no separate torque converter. The power-shift is really just for changing gears on the fly without the clutch, the foot clutch is still your manual torque converter.
rScotty

 

[California]

Agree. I think of my YM186D as having a Hi/Low geared transfer case ahead of what amounts to a small-car A/T that is directly, mechanicaly, driven, instead of driven through an oil coupled torque converter as it would be in a car. The only slip possible is in the moment that hydraulic pressure is first fed into the transmission's internal clutch assemblies to engage them.

Also since the transmission's internal hydraulic pressure comes from a second hydraulic pump that is driven by the transmission's input shaft, it is near impossible to feather a really smooth start while releasing the clutch pedal. Releasing the clutch pedal simply starts a sequence of events - it makes the internal pressure rise which a moment later engages the transmission's internal clutch plates. I wonder if making this smoother, or maybe less gear whine, were what got improved for the slightly different YM187 transmission.

At any rate there is no ability to crowd the loader into a material pile without finally stalling, slipping the tires, or putting in the clutch. Just use a lower gear.

Further, the power steering on mine needs some rpm and absorbs some of the main hydraulic pump's output so if I idle down to crowd into a pile slowly there isn't enough hydraulic pressure to curl or raise the bucket after its loaded. At low rpm the pressure is all bypassing through the PS diverter. I prefer to not go crashing around at mid-rpm for loader work but to be productive, its unavoidable.

This is a near ideal small tractor, but there are still aspects that could be improved.

 

[suburban99]

Thanks gentlemen! I thought I knew the answer and it's good to get it confirmed.
This is the 4th tractor I've owned and for it's size they are amazing.

 

[jerrybob]

I think that is normal. As you say, no separate torque converter. The power-shift is really just for changing gears on the fly without the clutch, the foot clutch is still your manual torque converter.
rScotty

Well stated....that is exactly how mine works…..these little tractors are great machines. :thumbsup:

 

[California]

And I still use the clutch to ease the stress of a shift, if under power. That head-jerk of an unclutched full-power shift can't be good for me or the tractor. Might as well baby the thing, hopefully it will outlast me.

 

[Jtullis13]

When I push into a pile with my loader on my 2210d I just make sure I have my loader where I want it and I have in a lower gear. As I am entering the pile I have one hand on the power shift lever and one on my loader so I can adjust the height and tilt and then I can use my other hand to shift into neutral and then reverse. Never had a problem yet. But what you are describing does sound normal.