|Subject:||[TowerTalk] Hy-Gain T2X Mechanical Failure|
|Date:||Wed, 05 Jan 2005 16:07:42 -0500|
What could cause a gear shaft in a T2X to fail - shear off? The symptoms of the problem were: The T2X, used to turn an EF240X and 4 element SteppIR, was removed yesterday after it started to slow down in turning in the CCW direction. It turned at a faster rate in the CW direction, but when it's motor stopped a loud metalic noise was heard prior to the brake set sound. The problem was one of the gear shafts had sheared off. All the gears are okay and no other mechanical damage could be seen. A spare T2X was installed and operates okay.
The gear shaft sheared off inside of the base casting. No telling how long the gear shaft was in the sheared condition before it worked out of the base casting. (A part of the gear shaft could be seen inside the base casting - so the gear shaft didn't completely come out of the casting.)
The T2X was purchased used about 8 years ago (part of an estate sale) and had been in use at K4GMH for 7 years. Fifteen months ago it was part of the tower (130 feet) that collapsed due to Hurricane Isabel causing an eighty foot pine tree to fall across a set of guys. The T2X was overhauled and reinstalled on the new tower and had operated okay for the previous five months.
Any ideas on what caused the gear shaft to shear off? Don't want the problem to happen again.
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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