[TowerTalk] US Tower problem

[K5rr at aol.com]

I have three TX489MDPL towers, which are 7 years old.  From time to  time I 
have experienced situations on all of them where the motor stalls when  you try 
to raise the tower sections, but everything is OK if you lower the  sections 
momentarily and then raise them.  But recently on one of the  towers the motor 
stalled when trying to raise or lower the sections.  I was  able to get it 
going  after manually turning the pulley on the gear  box.  I got to wondering 
about the oil in the gearbox.  It appears to  be ordinary motor oil, by 
appearance, anyway, which is not what Hub City  recommends.  I'm planning to change 
it out with Mobil SHC 634 oil.   Has anyone else had this problem and changed 
out the gear oil?  Did it do  any good?  I sent an email to US Tower on this 
subject, but have received  no reply.
 
Dick, K5RR



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