Ham rotor U bolts

[Rasmussen@centuryinter.net]

A very good Idea.  The next time I move,  I will change the U-bolts.    
My ham-M also has two 10-32 holes tapped in it for set screws.  After 
the mast is in place and the U-bolts snugged up, the set screws are put 
in and tinghtened enough to bite into the mast.  I use long set screws 
and put jams nuts on the outside to keep them from backing out......It 
has never slipped...

Paul
KA6VAN 

-----------------------------Reply 
Separator---------------------------------

> How many of you guys out there have broken  the 1/4 ss U bolts on a Ham
> series
> rotor.?  Most of you I bet. What about the mast turning in the clamp ? 
> after
> every wind storm I have a gob repositioning 5 or 6 yagi ants...
>  While prepairing the side mount for two 20mtr beams I was looking at 
> the Ham
> series top and lower optional mast mt.. diging through my U bolt box I 
> came
> up with some 5/16 U bolts long enough to pass through the aluimimum 
> housing
> and go through the mast plate on the other side. ( ,this is the tricky 
> part
> as most 5/16 U bolts were two short).   I have never seen a HINT or 
> KINKs re:
> " install 5/16 U bolts for better bite on you Ham series rotor " ???? 
> the TX2
> has 5/16 bolts standard. Well I took the chance. and drilled out both 
> top and
> bottom mast clamps to accept the heavyer U bolts..
> We put up the two side mts this afternoon  and hope to mt ant's next
> weekend...
> upon installing the rotors on the lower side mtg tube and the 6ft top
> swinging gate
> in the top    We set a record NO BROKEN 1/4 in. u bolts. seems mybe I 
> 'll
> won't have to call the freindly Gal's  at Hy-gain as often.!!! 
>                                                            73' Wayne 
> KY3N
> unless I am lotto lucky
> 
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