GST question

[Jay4200]

For those with glide-shift tractors. Do you change direction at full RPM, or do you chop the throttle before changing direction and/or gears?

JayC

 

[KennyV]

I do all I can to minimize the shock load on the drive train...
You can beat a GST hard ... but it all adds up and eventually something will quit taking it. KennyV

 

[David_Kb7uns]

When I am doing loader work, I set a good idle with the hand throttle for the loader hydraulics to work at and then use the foot throttle for moving and dropping it down when shifting. The GST on my GL3130 does have sensors for engine speed and traveling speed and modulates the solenoid for the clutch packs accordinally for some pretty smooth shifting but I do think every bit of stress you take off the drivetrain helps.

David Kb7uns

 

[Baby Grand]

I use the throttle and brakes to bring the tractor to a full stop just as I engage the reverser. Everything seems to go more smoothly that way.

 

[avc8130]

It depends what I was doing. When I was running the loader or pallet forks, I would change direction at or near idle. If I was running the brush hog on the pto, 2550rpm backwards and forwards. I couldn't see bringing it down to idle and spooling back up every time I wanted to push under a tree.

ac

 

[aczlan]

Generally, I will change into neutral, use the brakes to stop and then shift to the other direction with our L3830GST.

Aaron Z

 

[Jay4200]

Thanks. I do whatever I can to ease the load on my tranny too. Most of my tractor duties these days is snowblower work. The GST is a bit of a pain while doing back n' forth, such as when clearing wide parking areas. I generally use the pedal and chop the throttle when changing direction - I don't hit the brakes, but then I don't really have to - machine usually stops pretty quick by itself, especially in the snow. However, it is tricky as the blower has to keep spinning at WFO - if you make the mistake of chopping the throttle before the blower completely clears out, it packs up, breaks all of the shear pins, and takes 45 minutes to pick out with a digging bar. So, each reverse-to-forward change of direction involves popping the shuttle out of gear with the engine at WFO, waiting a few seconds for the blower to clear, then chopping the throttle, then re-engaging the shuttle, THEN stomping on it. Pushes the envelope of my coordination abilities to do it quick and smooth.

What do the operators that run the big articulated loaders do? They are all shuttle-shift, and I find it hard to believe that an operator does anything to ease the beating on the machines (when it uses time).

JayC

 

[aczlan]

They probably use a torgue converter that has a little bit slower ramp up than the one in the GST.

Aaron Z

 

[DK35vince]

What do the operators that run the big articulated loaders do? They are all shuttle-shift, and I find it hard to believe that an operator does anything to ease the beating on the machines (when it uses time).

JayC

They throttle down with the foot throttle to forward/reverse

 

[avc8130]

Thanks. I do whatever I can to ease the load on my tranny too. Most of my tractor duties these days is snowblower work. The GST is a bit of a pain while doing back n' forth, such as when clearing wide parking areas. I generally use the pedal and chop the throttle when changing direction - I don't hit the brakes, but then I don't really have to - machine usually stops pretty quick by itself, especially in the snow. However, it is tricky as the blower has to keep spinning at WFO - if you make the mistake of chopping the throttle before the blower completely clears out, it packs up, breaks all of the shear pins, and takes 45 minutes to pick out with a digging bar. So, each reverse-to-forward change of direction involves popping the shuttle out of gear with the engine at WFO, waiting a few seconds for the blower to clear, then chopping the throttle, then re-engaging the shuttle, THEN stomping on it. Pushes the envelope of my coordination abilities to do it quick and smooth.

What do the operators that run the big articulated loaders do? They are all shuttle-shift, and I find it hard to believe that an operator does anything to ease the beating on the machines (when it uses time).

JayC

JayC,

That is insane. Keep the machine operating at PTO speed, bring the shuttle into neutral and pause until the machine stops (use the brakes if you want) then pull it back into reverse.

The machine was designed to be operated at PTO speed, it can take it. There are L39's all over the place with 2-3k hours and still going getting the crap kicked out of them by contractors and at rental yards.

ac