Yes, in this failure more, the ring gear tang is up against the pivoting lever
arm that opens the CW end-of-travel switch. In thinking about it some more, I
wonder if the lever arm is loose vertically such that the tang is pushing it up
(as well as laterally) and wedging up under the lever arm and against the drive
pinon gear, so the ring gear can't back out when the motor is reversed. I'll
have to check when I get home from work tonight...
________________________________
From: Wayne Kline <w3ea@hotmail.com>
To: Kevin Balmforth <n6er@yahoo.com>; "towertalk@contesting.com"
<towertalk@contesting.com>
Sent: Thursday, January 9, 2014 7:10 AM
Subject: RE: [TowerTalk] HAM IV won't reverse direction after reachind end of
travel stop
Kevin
Tow thing you said " it binds up mechanically " ? but if you OPEN up
the Limit switch it works.
The TANG protruding inside the ring gear is the mechanical lever to open the
limit switch, in it's Stop binding condition, is the tang engaged in the CW
Stop switch ( it should be open and the CCW switch should be closed ? )
Wayne W3EA
> Date: Thu, 9 Jan 2014 06:24:18 -0800
> From: n6er@yahoo.com
> To: towertalk@contesting.com
> Subject: [TowerTalk] HAM IV won't reverse direction after reachind end of
> travel stop
>
> I have an old Ham IV rotator that binds up mechanically and won't reverse
> direction after stopping at the CW stop. No problem at the CCW stop. No
> problem if the ring gear is pulled and I manually open the stop switches. Any
> ideas?
>
> 73 - Kevin N6ER
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