[TowerTalk] man lift tips over

[Roger (K8RI)]

Eugene Jensen wrote:
> OSHA will have a field day with this and my thought to the man family. I
>   
One of the first things we were taught was to never move the base with 
the boom extended up.  That gives it a very high center of gravity.

The story is a bit misleading as it is more of a case of the one wheel 
"falling through" an access cover than "running over" which gives the 
impression the other side was raised.. It may have dropped only a few 
inches, but with an arm that long raised that is one whale of a lot of 
leverage and momentum.  And yes, I'm speaking from the experience of 
rolling one over on it's side.

73

Roger (K8RI)
> just had my refresher class on these class machine's and interesting one
> point the instructor keep going over way walking the pass of the machine.
> Think about how these are used and they spend a lot of their time on work
> site with soft earth. So cave in is number 1 way for a collapse of these
> very heavy machines. 73 Gene K2QWD   
>   
Roll over...yes, they are easily rolled, but collapse. I've never seen 
one collapse yet although I'm sure it's happened..

73

Roger

> -----Original Message-----
> From: towertalk-bounces at contesting.com
> [mailto:towertalk-bounces at contesting.com] On Behalf Of Gregg Seidl
> Sent: Monday, October 12, 2009 11:05 PM
> To: TowerTalk at contesting.com
> Subject: Re: [TowerTalk] man lift tips over
>
> How weird is that. It does say in the instruction manual to be aware of what
>
> you are driving over. Yes I read it before I went up with it. It says that 
> shallow buried pipes,water tanks, septic systems can all give way due to the
>
> weight of the lift. Gotta pay attention when doing nearly anything 
> today,death is just around the next oversight.
>
>   Gregg K9KL 
>
>
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