From: "Dick Harms PA2DW" 
Subject: RE: [drakelist] R-4C gears nylon or metal?

nylon=20
  or metal?
  
  Would you believe DeWalt used to use nylon gears in the =
transmission of=20
  their cordless drills? That made for a lot of repair bills. Now, they =
use=20
  metal gears, and they last much much longer.
   
  Eric
  Lee Bahr
<pulsarxp{at}earthlink.net>=20
wrote:
  
"Lee=20
    Bahr" made an utterence to the drakelist=20
    =
gang-----------------------------------------------------------------=
-----What=20
    can wipe out the plastic gearing besides oiling and lubricating them =

    isBANGING THE GEARS ON THEIR END STOPS! I'm talking about =
running the=20
    dial tothe end of their travel rotation quickly while tuning =
across the=20
    band. Youcan do this all day long with metal geared radios but =
not those=20
    with plasticgears.I bought a new C-line
when they first =
came out=20
    and the radios had plasticgearing. (I had been using a metal =
geared TR-4=20
    up until this point in timeand had been used to running and =
banging the=20
    dial up to it's end pointswhile scanning the band.). I found out =
very=20
    quickly you could not do thiswith a radio with plastic gears. =
Within two=20
    months of purchase Drake hadsent me 3 new gear! ed PTOs as =
replacements.=20
    (The banging warped the gearingso they did not rotate smoothly =
and=20
    freely as when new). Once I changed myways and did not bang =
against the=20
    end stops, my problems with plastic gearswent
away.Lee,=20
    =
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