Polaris Fusion 600 - greasing jackshaft bearing
- Thread starter Hoosier
- Start date
cobalt 200
New member
It is on the opposite side of the sled as the chain case and you do not need to take off the clutch. It is on the bottom side and you can get at it with a flexable line greese gun
snow_monkey
New member
Old guy, I thought the same thing and I could not see it with the secondary in place on my 2002. I'm not sure about the fusion. I had a key on the shaft that I had to be careful to replace and also some spacers that have to go back in the same postion. In my manual it made mention that some do not have grease fitting and that you may need a needle nose tip grease gun attachment to shoot some grease into the bearing.
oldguy
Member
Thanks Sno Monkey, I have had the secondary off and was looking for the zert fitting with no luck. Looks like I will invest in a needle nose grease gun tip. I wonder how much Polaris is saving by not putting on the zerk fitting on a bearing they say should be greased every 500 miles.
michaeladams
New member
pull the cover off and drill and tap your own in.i had to do this on some ford trucks that came with the greaseless front end,what a joke
To grease that bearing, you can carefully remove the dust seal, clean out the bearing and re-grease and put the seal back in place.
I agree that Polaris should have kept with the grease zerk, lot easier for maintenance!
Isn't the bearing a sealed bearing? And if so how would you grease it?
My 09 says same thing. Polaris went from greaseable bearing to a sealed bearing that does not require grease. I have found that sealed bearings last much longer than greasable bearings so maybe thats a good thing.
Carefully remove the dust seal with a very small straight-blade screwdriver is what I use.
Once the seal is removed, you can clean out the bearing, re-grease it and put the seal back in place.
This works well for the rear suspension track wheels too! Those seals don't keep moisture out unfortunately-let it set all summer and it only creates problems later.
booondocker
New member
What we have here is a typical Polaris screw up where the engineers changed out bearings from greasable to sealed and didn't communicate this to the factory where they were still putting stickers on the sleds saying to grease the bearings. If the bearing is a true sealed bearing it doesn't do any good at all to remove the dust cover and regrease, or to install a zerk on the cover, since the grease won't get into the bearing enough to help, cause it is sealed.
I think all the makers of sleds undersize this bearing and if they put the bearing in an oil bath and increased the surface area of this bearing, it would probably never fail, or hardly ever fail as the one in the chaincase works way better just being in an oil bath all the time.
Anyway if there is no zerk the bearing is sealed and if there is one, then grease it regularly, like in twice or three times per season....and for sure before you store the sled. This goes a long way to keeping the water out and the bearing rusting out.
I think all the makers of sleds undersize this bearing and if they put the bearing in an oil bath and increased the surface area of this bearing, it would probably never fail, or hardly ever fail as the one in the chaincase works way better just being in an oil bath all the time.
Anyway if there is no zerk the bearing is sealed and if there is one, then grease it regularly, like in twice or three times per season....and for sure before you store the sled. This goes a long way to keeping the water out and the bearing rusting out.
Here's a related question - for the bearing that is greasable, I pumped a bunch of grease into it because I couldn't see where you can where it comes out. Later, I read in the owners manual, that you shouldn't give it more than 4 pumps. I probably gave it 6-8. Is this a big deal? I'm assuming no, but I'm trying to learn here...
michaeladams
New member
6 to 8 pumps is way too much. lol just kidding.same problem,don't know where the grease goes.probably under the dash behind the air cleaner.then once it falls off it is in a pile on top of the bellypan.if you ever have to pull the engine you'll probably find it
michaeladams
New member
i was just thinking,if it's got a dust boot on the other side too much grease could blow that out requireing you to grease more often to keep fresh grease in the bearing
Here are a few pics I found over on the TotallyYamaha site showing the driveshaft bearing on an Apex. The pics show how nasty a "sealed" bearing can get in one season.
In the one picture it shows where they re-greased the bearing, to me that is too much grease. (The person who posted these pics on TY said he used WD40 to clean out the bearing prior to re-packing.)
This is the drive shaft bearing, imagine what the track wheel bearings can be like.
Some may say it doesn't pay to clean and re-pack these 'sealed' bearings but I have not had to replace a bearing since doing this procedure at the end of the riding season each year.
In the one picture it shows where they re-greased the bearing, to me that is too much grease. (The person who posted these pics on TY said he used WD40 to clean out the bearing prior to re-packing.)
This is the drive shaft bearing, imagine what the track wheel bearings can be like.
Some may say it doesn't pay to clean and re-pack these 'sealed' bearings but I have not had to replace a bearing since doing this procedure at the end of the riding season each year.
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