Re: (ET) maximum grade

["RJ Kanary" <rjkanary nauticom net>]

     Lowering the air pressure in the rear tires will increase 
tractability.
Three to four PSI should do it.This will assist in both climbing an
descending grades.
      With a two hundred and plenty pound pilot on board, and the lower
profile Firestone® tires that were available , enough tractive force is
available to lift the front wheels off the ground, and still have the mower
deck on the ground.
    If you choose to approach mowing from side to side, instead of up and
down, be aware that tubes will be required for the lower air pressure. On a
hillside, the beads will unseat during a turn, unless you have tubes in the
tires. Ask me how I know................

----- Original Message ----- 
From: "Ken Olum" <kdo cosmos phy tufts edu>
To: <Elec-trak cosmos phy tufts edu>
Sent: Sunday, June 27, 2004 10:32 AM
Subject: (ET) maximum grade


> What is the maximum grade that you can reasonably mow?  I have a hill
> at the edge of my lawn down to the street that goes up to about 35%.
> I think it's somewhat worse because the grass is in tufts with lower
> ground between them.  If I try to mow across it I think I'm going to
> tip over.  If I try to mow up it I lose traction.  If I try to mow
> down it using either the motor or the brake (I have the upgrade) then
> one wheel turns forward while the other turns backward and I slip down
> the hill and wreck the lawn.
>
> Would better tires help, or is this just too steep?
>
> Ken
>
>
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