Can I shift gears while moving?

[dieselfuelonly]

Out of curiosity, how is the shuttle shift different from a 3spd standard shift like mine? Is it synchronized like a transmission in a car?

 

[MJPetersen]

Sometimes I think a shuttle shift would be nice!

That is right--Thats why I have a 1510D And happy I am too.


with a shuttle shift you have ranges and PTO which you need to stop and shift, just like your 1401--but the 3 speed shifter and reverse can be shifted without using the clutch. ie you can start in 1st, then just push the lever to 2nd and on to 3rd. It is somewhat like manually shifting an automatic in a car. The transmission has hydraulic clutch packs that engage and disengage the different speeds. It is a very strong and for the most part trouble free tranny. It is a mechanical trans with hydraulic clutch packs. It is not an automatic with a torque converter, nor a hydrostatic with infinitely variable speed.

Mike

 

[kenmac]

Sometimes I think a shuttle shift would be nice!

It is

I can't answer about cars from the 30's. never driven 1

 

[LMTC]

Standard transmissions on cars were quite common into the early 70s at least.

 

[California]

I think nearly all automotive manual transmissions today are synchronized on everything but reverse. They started putting in brass synchronizer rings to absorb the mismatch of gear speeds, in the 30's.

If I remember correctly Chevrolet before 1955 had synchro only on second and third. Engaging first required a full stop for the earlier models.

 

[kenmac]

If I remember correctly Chevrolet before 1955 had synchro only on second and third. Engaging first required a full stop for the earlier models.

Can't remember . Wasn't here yet

 

[tallyho8]

. If I remember correctly Chevrolet before 1955 had synchro only on second and third. Engaging first required a full stop for the earlier models.

If I remember correctly, first gear wasn't syncronized until the 1960s.

 

[Mickey_Fx]

Your rememberer is working well. It wasn't until in the 60's when manual 4sp trans got popular that auto Co's added syncro to first gear on the 3sp trans.

 

[hosejockey2002]

I'll chime in as a former owner of a 1401D. In low range, you are going way too slow to even consider shifting on the fly. You stop as soon as you push in the clutch. On the occasions that I would take mine down the road in high range, I would often shift it on the fly. A caveat to that is I understood it was a non-synchro transmission and had to be shifted precisely to avoid damage. I've driven heavy non-synchro trucks and have a good "feel" for how to shift a non-synchro tranny without grinding. My 1401D required an extremely fast 1st to 2nd shift (without double-clutching) and a slightly slower 2nd to 3rd shift. I never had a problem shifting it without grinding. However, I never attemped to downshift. I am sure that the guys who say to never shift it on the fly are correct, although it requires some clutch slippage to get it rolling in 3rd gear high range.

 

[wombat]

I have shifted [rarely]on the fly with varying success on my YM2000.
Usually with a "grunch".
I'm pretty experienced with double declutching from driving Triumphs with old Masey Fergusson gearboxes.
This Yanmar doesn't seem to want to play the game though.
I figure it's because of the relatively slow speeds, high torque and low number of teeth on the cogs.[I'm just guessing]

My Yanny will crunch even at standstill if I have the brake on.
I have gotten to the stage that I drop the revs below 1000 when I put her into gear to reduce stress on the tranny.

Wombat