[TowerTalk] Chucking the ground rod
n0ath at charter.net
Thu Aug 31 00:38:28 EDT 2006
I am visiting as I type to a gentleman ( on Skype ) who is an employee of
here in Missouri and I won't mention which store but he is an amateur. He is
the ( Tim
the tool ) rental man here. He recommends the Hilti 505 and says that you
didn't get a
hammer drill with your description of the gearshift on the side. He also, as
the folks on
this list have said, suggested that there will be no chuck, only a socket
that will set over
the end of your rod. Hope this helps.
Dave / NØATH
----- Original Message -----
From: "Nick Pair" <daweezil2003 at yahoo.com>
To: <w0uce at nc.rr.com>; <towertalk at contesting.com>
Sent: Wednesday, August 30, 2006 11:12 PM
Subject: [TowerTalk] Chucking the ground rod
Placing a 5/8 ground rod in a 5/8 chuck will work till you hit a hard rock
of dense clay and then the mushrooming will get ya. That's a been there done
I have also seen on some hammer drill models that in the hammer mode that
the shape of the rod compared to the bits made for the hammer does not allow
the rod to contact the hammer piston follower and enable the hammer only
mode. The follower has to be pushed up about 3/16 inch to contact the hammer
through the cushion between them. That's why the rod adapters are mandatory
on some models.
The clay up here in the north west is only about a 100 years short of
being rock. It chips just like it and is impermeable to water. A 16 lb
sledge just mushrooms the rod after a foot or so but the larger hammers will
do the job albeit slowly though.
I would complain to where you rented it as they instructed you as to its
usability and it was unsuitable. A rent reduction at least, or another 4
hours on them with one that works.
Skookum clay country
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