On 22 May 2019 at 16:08, Dean Stuckmann via Elec-trak wrote:
The only reason I can think of for an un-mowed strip would be blades
that are
too short. I think that would be true for any deck - regardless of the
number
of blades it has.
I may not know what I'm talking about, but the few ICE riders /
tractors
I've had (limited) experience with had blades whose paths overlapped a
bit.
However, the blade drives were belted together. The belt was set so
that
the blades were always at right angles to one another. That is, they
were
timed so they'd never strike each other when rotating. (I guess you
hope
that the belt doesn't slip.)
When you have 2 independent motors driving the blades, as in the R36 /
ER8-
36 and E8 / E10, you can't time them that way. You have to find some
other
way to ensure that the blades will never strike each other. The ways I
can
think of to do that are by allowing clearance between the blades, or by
setting one blade slightly higher than the other.
If you offset them in height, the cut will be uneven. Not so good.
If you allow clearance between the blades, you'll have some amount of
grass
that's missed. That's not great either. Maybe it should only be a few
mm,
but there has to be some.
If you have an E15 or E20 with a 3-motor deck, the center blade is
farther
forward. It can (and IIRC does) overlap the others' cuts horizontally.
That eliminates any gap.
You don't have this on a 2-blade deck such as the ones on the riders
and the
small-frame tractors.
Now, it may be that my R36's blades are indeed too short. They're what
the
mower came with when I got it I've been assuming that they were
standard
factory issue, but I bought the mower used, so who knows for sure?
Maybe
they're aftermarket blades. But they always leave an unmowed stripe an
inch
or so wide in the middle of the deck. So I overlap cuts about 55-60%
when I
mow.
Really? Nobody else with an R36, ER8-36, or E8/E10 has this problem
with
the mower leaving an unmowed stripe down the middle of the deck?
David Roden - Akron, Ohio, USA
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Note: mail sent to the "etpost" address will not reach me. To send
me a private message, please use the address shown at the bottom
of this page : http://www.evdl.org/help/
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
_______________________________________________
Elec-trak mailing list
Elec-trak cosmos phy tufts edu
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak