California
Super Star Member
- Joined
- Jan 22, 2004
- Messages
- 14,679
- Location
- An hour north of San Francisco
- Tractor
- Yanmar YM240 Yanmar YM186D
I went ahead and bought the YM186D out of Northern California that was discussed here about a month ago. It looks a little rough but the price was relative to that. And I had it checked out by Dave's of Red Bluff, who replaced the seals in the front axle plus a couple of other minor things he found. Overall it now seems to be ready for another 25 years of troublefree use. I might even paint it!
I'm laid up with back problems so I haven't gotten up to Red Bluff to pick it up from Dave's. I'm dying to put it to use. But for the moment, about all I can do is read the Operation and Service manuals. I have a question:
Since the Powershift engages as engine rpm increases (its pump is driven by the transmission input shaft), what happens as you slow the throttle for a steep downgrade? Will it drop out of gear and coast if the rpm's fall too low? If you downshift will it catch the lower gear and force the engine speed up to appropriate rpm, or continue to idle, never engage the gear, and maybe even die if the throttle was set too low?
And what about the case of inching along on treacherous ground? I'm used to idling down my manual transmission YM240 to about where you can feel every revolution of the crank, and ready to kill the throttle to halt, going down anything that has some side slope as well as steep descent. How does the powershift deal with this? The last thing you want is a roaring engine and lots of inertia when inching down something where the footing is uncertain. Comments?
I'm laid up with back problems so I haven't gotten up to Red Bluff to pick it up from Dave's. I'm dying to put it to use. But for the moment, about all I can do is read the Operation and Service manuals. I have a question:
Since the Powershift engages as engine rpm increases (its pump is driven by the transmission input shaft), what happens as you slow the throttle for a steep downgrade? Will it drop out of gear and coast if the rpm's fall too low? If you downshift will it catch the lower gear and force the engine speed up to appropriate rpm, or continue to idle, never engage the gear, and maybe even die if the throttle was set too low?
And what about the case of inching along on treacherous ground? I'm used to idling down my manual transmission YM240 to about where you can feel every revolution of the crank, and ready to kill the throttle to halt, going down anything that has some side slope as well as steep descent. How does the powershift deal with this? The last thing you want is a roaring engine and lots of inertia when inching down something where the footing is uncertain. Comments?