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Re: [TowerTalk] HAM IV Service Manual

To: "'Mike Holley'" <>, <>
Subject: Re: [TowerTalk] HAM IV Service Manual
From: "Julio Peralta" <>
Date: Mon, 22 Jan 2007 07:25:41 -0500
List-post: <>
A machine shop should be able to drill out the broken bolts and re-tap
the holes for new bolts. The new bolts may have to be the next size up
but that shouldn't be a problem. That's what I did when I had a similar
problem with a TX-2 rotor.

Julio, W4HY

-----Original Message-----
[] On Behalf Of Mike Holley
Sent: Sunday, January 21, 2007 2:28 PM
Subject: [TowerTalk] HAM IV Service Manual

My Name is Mike Holley VE7AVM and have two HAM IV Rotators in service
on removing one  which had become defective  for bench overhaul  three
of the four mounting bolts  snapped off in the  attempt to unscrew from
tower mounting plate , every effort has been made to remove the bolts
the casting but with out success  . My next step would be to replace the
casting  but  as I do not have the service manual  I have no idea of the
current part number  ,I have written to "Hy Gain "   to try to purchase
Service Manual but to this date no response  . Can any one help please .

The data stamped on the bottom of the casting is H4 S1  JUL 81
   Mike Holley VE7AVM 

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