[TowerTalk] US Tower gearbox

[Bob K6UJ]

Rick,

Cant figure out what you have.
Evidently we have different series of the of Hub City worm gear boxes.
My HDX589 has a Hub City 321 series box.
Here's some pics.  The fill plug is about 2/3 up the side and the drain 
plug is
down near the bottom on the other side of the case.

https://k6uj.shutterfly.com


Bob
K6UJ




On 9/8/16 9:17 AM, Richard (Rick) Karlquist wrote:
>
>
> On 9/8/2016 8:00 AM, Jim Thomson wrote:
>
>> ##  Whoa.   There are  THREE plugs, one on the bottom, one on the 
>> top, and one
>> on the side,  close to the top.  Remove the top and side plugs..and 
>> fill till the oil
>> comes out the side plug, then install  both side and top plugs.
>>
>
> How are you defining "top" vs "bottom"?  On my HDX-5106, the gear
> box appears to be mounted "upside down:  The name plate
> printing reads upside down and the embossed "Hub City"
> on one of the surfaces reads upside down.  This is the
> way UST engineered it.  IMHO, UST installed it correctly
> irregardless of the orientation of the text.  I don't
> think it would make sense to mount it with the text upright.
>
> Having said that, on my tower, such as it is, there are two plugs
> near the surface of the hub city box that faces the ground.  These
> are at about the same level, like I could use either one to drain.
> There would be a couple of inches of oil remaining to be sucked
> out.  One is easily accessible and the other would require
> removing the safety guard over the chain.  The third plug is
> just about midway between top and bottom, however those terms are
> defined.
>
> When Skip changed the oil for me 4 years ago, I believe he filled 
> through the 3rd hole and just put in oil until it dripped out through
> this hole.
>
> In order for my gearbox to meet the description of the plugs
> you gave, it would have to be mounted so the text is "vertical"
> and the shafts are vertical instead of horizontal.  Vertical shafts 
> would totally not work on this tower.
>
> Any comments?
>
> Rick N6RK
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>