Nose sprocket jamming

[easylife]

I have always greased husky nose sprockets. O:flute:nly ever had one seize this was last winter due to build of snow when cross cutting. Sounds like you may have oiling problems. Its worthwhile to wash out the oil tank. and make sure that the pump is discharging oil. what oil are you using and do you clean the muck out of the guide bar rail groves

[HeatherwoldGardener]

No worries on the oil delivery, when first running, I always hover just above a piece of timber for 30 seconds or so to check for oil spray.

Leaving a nice trail.

Ran a total of six hours today, and no problems.

[blazer]

I have had a couple of Stihl bars jam up the nose wheel, sod to clear - just did it, first one quite a few times, no idea why.

 

If it has jammed look at the chain when you drop power it should run down, not stop - if it does stop as it it braked, then it jamming again.

[arbogrunt]

get an Oregon guidebar and sling that husky one away...they are awful!

[TRADITIONAL LOGGERS]

I thought Oregon produced them for Husqvarna? I have greased and had no issues but the current bars seem to wear more than previous versions.

[Ian C]

I always grease a brand new bar on PDI as I think it helps to 'run it in'.

 

They will otherwise get quite hot in the first few minutes before the chain oil gets around.

 

From then on I think the chain oil will lubricate it well enough, and after all those little grease guns are a pain.

 

As for the Stihl with no grease hole, I guess they may be assembled at factory with a good dose of grease for the initial start.

 

I can personally find no logic in the common thought of if you start greasing you have to keep greasing.

 

same here, its not like a bar gets hooked on a good greasing.

 

I have never greased a bar either and never had any trouble.

[woody paul]

Two week old Husky 450e with 18" bar. I grease the nose sprocket with red sprocket grease about every third or fourth fill of fuel and for the second time in two days, the bar nose sprocket is jammed solid after a couple of hours of work.

I have to strip the bar down and dig around the sprocket removing loads of crud before it starts spinning up again.

Never had any issues with my old Stihl (no grease hole so didn't need to grease up)

Was I wrong in following Husky's advice on greasing and shouldn't have bothered?

Or is there something I'm doing wrong here guys?

 

Are you using bio oil? if you are iv'e been told not to mix oils, don't no if it may be afecting grease

[HeatherwoldGardener]

Using Husky oil, but after cleaning bar in petrol and just letting oil lubricate nose wheel, I haven't had anymore problems.

Probably a total of 20+ hours cutting.

[Mesterh]

I have never greased any bars but have had a few oregon ones seize up so I only buy Stihl when I can.

 

I think the problem with grease is it attracts crap so unless you purge it regularly you will have bearings surrounded by crap impregnated grease. Which isnt very good.

 

I assume the stihl bearings are designed to be cleaned and lubricated with bar oil.

[arbogrunt]

I think I'm right in saying Stihl have the patented 'rollamatic' nose sprockets with have sealed bearings?...never ever had any probs with them. Husky bars?...I had one that lasted 3 weeks!