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Re: [TowerTalk] HG70HD pulley

To: towertalk-bounces@contesting.com, "towertalk reflector" <towertalk@contesting.com>
Subject: Re: [TowerTalk] HG70HD pulley
From: "Patrick Greenlee" <patrick_g@windstream.net>
Date: Thu, 6 Feb 2014 10:14:25 -0600
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
It is likely but not a certainty that the bearing is pressed on and will need to be pressed off or pulled with a bearing/pulley puller. If you elect to try to pry it off do go around and around making just a little progress on each "bite" and be patient if it takes many revolutions. Most likely there will be a number on the bearing that you can use to secure a replacement. If no number then take the bearing with you to Graingers or other similar vendor or an auto parts store. You need to match the size exactly to make it fit properly. If you have a number then Google it to find sources. Mind the load ratings and do not use a bearing not up to the task. Leave a good safety margin even if it costs a few bucks more.

If you install the bearing yourself be careful to not cock it when inserting it. You can select a socket from your socket wrench set to use as a tool to press (tap with a hammer or squeeze in a vise) the bearing into place. The socket you select should fit such that all the force you apply to the socket presses on the part of the bearing in contact with the pulley and does not touch the part where the balls are.

If you use a hammer or a vise (or hydraulic press if available) you should press a little then rotate the pulley part of a turn and press again. This will help prevent cocking the bearing. The farther in the bearing is pressed the less important the rotating becomes. Rotating is the most important when getting the bearing started. Look at it closely when getting the bearing started and make corrections early on before pressing the bearing even 1/4 of the way home.

Hey, it is easier than my comments may make it seem. I have done it successfully and I am strictly self taught in mechanic stuff.

If you have additional questions or concerns that you would want to send direct, I am good in QRZ.

73,

Patrick NJ5G

-----Original Message----- From: Mike Reublin NF4L
Sent: Thursday, February 06, 2014 9:37 AM
To: towertalk reflector
Subject: [TowerTalk] HG70HD pulley

While working on getting the new puppy ready for duty, I discovered the pulley at the top of the main section would not turn. I soaked it with PB Blaster and got it to go maybe 1/8 turn.

I took it out, cleaned it well, put a little grease in the hole and put it back in. There is quite a bit of slop now on the axle.

Did I lose part of a bearing? Any suggestions for a fix or replacement?

73, Mike NF4L
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