[TowerTalk] HG70HD pulley
patrick_g at windstream.net
Thu Feb 6 11:14:25 EST 2014
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.
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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