No drive when clutch depressed on B2920 HST

[ericher69]

Does this make any sense?

The HST drive does not work when the clutch is depressed on the B2920!

Released the clutch and bingo! Is this a safety feature?

I thought the clutch was for the pto engagement only

ericher69

 

[jake98]

Come'on now, this isn't funny...

 

[easygo]

That is the way it is. On the "B"-s the clutch disengages the drive to the PTO(s) and the wheels. I don't know if that is for safety or not. It does so I guess that the drive is not engaged while shifting from Low-Med-Hi. The independent PTO stays on while the clutch is depressed, the live will not.

 

[Grubs]

I thought the clutch was for the pto engagement only

On my B1750 HST the clutch is used when engaging the PTO, when switching between 2WD and 4WD and also when switching between high-range and low-range. I gather the high/low range selection is just a mechanical drive gear that changes how the power coming out of the HST is applied to the wheels. Just like a manual car you need to disengage the engine with the clutch to change gears but in this analogy the HST drive is the "engine".

 

[Botabill]

It came to me as a drastic alteration from my previous experience with a BX. No clutch on the BX. I hope the clutch is a better system on my B2620 or in your case 2920 but it seemed odd going back to a clutch system on an HST.

 

[Evil the Weasel]

Does this make any sense?

The HST drive does not work when the clutch is depressed on the B2920!

Released the clutch and bingo! Is this a safety feature?

I thought the clutch was for the pto engagement only

ericher69

Granted I haven't had a real tractor for very long, but I can't figure out why you would want to operate the HST drive with the clutch depressed. I'm imagining you want to stop a pto driven implement briefly to reposition the tractor? If so, disengaging the PTO is inconvenient?

 

[Happyman]

Granted I haven't had a real tractor for very long, but I can't figure out why you would want to operate the HST drive with the clutch depressed. I'm imagining you want to stop a pto driven implement briefly to reposition the tractor? If so, disengaging the PTO is inconvenient?

Depressing the clutch disengages all power to the drive train, including the HST, PTO, HI-LO, 4wd etc. The HST will not operate with the clutch depressed.
It's like a car....no clutchy, no movey

 

[Evil the Weasel]

Depressing the clutch disengages all power to the drive train, including the HST, PTO, HI-LO, 4wd etc. The HST will not operate with the clutch depressed.
It's like a car....no clutchy, no movey

Yep, I get all that. Now why is that a problem? That's what I don't get.

 

[john_bud]

Does this make any sense?

The HST drive does not work when the clutch is depressed on the B2920!

Released the clutch and bingo! Is this a safety feature?

I thought the clutch was for the pto engagement only

ericher69

The clutch cuts off engine power to the transmission. Not a safety feature, it's a clutch feature.

Can I ask why you thought otherwise?

 

[Egon]

Disengaging the hydro with the clutch is a nice feature when starting the unit in colder climates!