Are these holes for overflow of the gear oil??

[square1]

look like grease zerk holes to me.

 

[nfernandez]

look like grease zerk holes to me.

Would it be strange that gear oil would leak out the hole(s) when filling if they were zerk holes? When I filled it, the hole further away in the image was leaking gear oil, but the blower was leaning that direction so I don't know if it would leak out the hole closer in the image.

 

[nfernandez]

I just received a copy of the manual from the manufacturer, and it was a little help. It doesn't show any images but it does say something of importance in the maintenance part. Here is what it reads:

Check the oil in the worm-gear drive every month. If necessary, add SAE 90 oil. There are two grease fittings on the worm-gear drive. Grease them once a month.

So now the question is, why would gear oil come out of one of those holes when i was filling if its supposed to accept grease?

 

[square1]

So now the question is, why would gear oil come out of one of those holes when i was filling if its supposed to accept grease?

Likely they are not sealed bearings given the age of the equipment, oil could pass through them.

 

[nfernandez]

Likely they are not sealed bearings given the age of the equipment, oil could pass through them.

So you would still grease them then? Or are you saying i need to get new bearings to make it sealed? Also I did find an image of the worm gear drive in the manual.

 

[square1]

So you would still grease them then?

Yep. I'd do just what the manual suggests. No need to change the bearings unless they are showing signs of wear i.e. slop, heat, noise...

 

[nfernandez]

Yep. I'd do just what the manual suggests. No need to change the bearings unless they are showing signs of wear i.e. slop, heat, noise...

Thank you very much. I'll run out today and get some grease fittings for it. Everyone on here has been VERY helpful!!!!

 

[nfernandez]

I do have one last follow-up question. If you look at the image below, i was adding gear oil to through the top (red arrow), but there are also plugs on the side of the gear drive. Number 18 and 17 are both a type of plug, but are really low on the gear drive. Was I putting gear oil in the correct spot? There is also a drain plug on the very bottom of the gear drive that you can't see in the image, so neither of those are for draining unless someone modified this in the past and added their own drain.

 

[nfernandez]

I do have one last follow-up question. If you look at the image below, i was adding gear oil to through the top (red arrow), but there are also plugs on the side of the gear drive. Number 18 and 17 are both a type of plug, but are really low on the gear drive. Was I putting gear oil in the correct spot? There is also a drain plug on the very bottom of the gear drive that you can't see in the image, so neither of those are for draining unless someone modified this in the past and added their own drain.

View attachment 397372

Another update from the manufacturer. I was told plug #18 is used to check oil level. So it sounds like the oil level should only go to the opening of #18 plug.

 

[doxford jim]

Item 19 are the grease fittings (nipples). Item you marked is for the gear oil - this lubricates the exposed gears shown, inside the gearbox. If you have a drain, then it will be for draining the oil out. The gearbox on my snow blower has the upper plug as a vent (plug with tiny holes drilled) or breather fitted. You could drill out the plug with very small drill if you feel inclined. If you shaft seals are worn you will see some evidence of oil in the fan housing of the blower.
HTH.