Related topic:
The motor bearings are pretty exposed on the UST powered crank ups. I
use a plastic records/file box (black for UV resistance, other colors
rotted quickly) with a notch cut for the power cable and held on with a
bungee over the top so it stays put in the wind. This keeps rain
off/out of the motor and nearby stuff. About $10 at Staples, cheaper at
Costco if you can find black.
Grant KZ1W
On 9/23/2016 18:26 PM, Jeff Draughn wrote:
After reading this thread and a couple of others on the list I decided that
I should service the gearbox on my HDX 555. I bought it used and I hate to
admit it but really hadn't given the gearbox much thought.
I ordered the mobile SHC 630 from McMaster Carr. It was exactly half price
from anywhere I could find it locally. Thanks for the tip!
I took out the bottom plug in the gearbox and I knew I was in trouble when
water started running out before I got the plug out. What a mess it
looked like mud coming out along with some water but just a thick brown
mess!
I poured some of the new oil in a couple of times and let it drain. I
filled it up to the side plug then put the plug in and added more, closed
it all up and I'm going to let it set for a few days since they are calling
for rain.
I guess I will drain it down to the side plug then run it just a little bit
to shake things up and drain it all out then fill it back up. From what
little I could see the gears look to be in good shape and I did not see any
metal in what drained out.
I noticed in the top it appeared that the plug had a ball in it and a few
tiny holes I assume for venting purposes. There was some rust buildup
around the ball so I'm thinking that's where the water was getting in.
There are no signs of oil leakage so I'm guessing it must be coming in
there.
I put a plastic pop bottle over that and taped it in place because of
the coming rains.
I assume I can order a new vent plug any other suggestions to help mitigate
any damage or to further clean out the gearbox?
Thanks,
Jeff
On Friday, September 9, 2016, Bob K6UJ <k6uj@pacbell.net> wrote:
OK.
Skip recabled my tower about 8 years ago and replaced
several sheaves. He mentioned changing the gearbox lube.
I decided to do that myself. Glad I changed the lube,
the old lube looked pretty bad when I drained it.
BTW, my gearbox name plate is also upside down.
Evidently they can be mounted in different orientations
as long as the worm gears are immersed in the lube.
Bob
K6UJ
On 9/9/16 6:56 AM, Richard (Rick) Karlquist wrote:
Mine is a 281 series IIRC. It basically has the
same set of design elements, but they are just
arranged differently. There are two drain plugs
at the same height. You use the one that is
easier to get at. The one that is under the
chain guard would be the one you use to completely
fill up the box when storing horizontally. In
the horizontal position, this plug is on top.
At least I guess that was what they intended.
73
Rick N6RK
On 9/8/2016 8:46 PM, Bob K6UJ wrote:
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@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|