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primebeef

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Hey everyone. My pins on my bobcat are wearing too fast I think. Its the ones on the bucket. Where the hydraulic cylinders mount on the mounting plate. Anyone else have this problem? hope this makes sence to everyone if not just tell me. I grease them good. Maybe I need to do it more, but still I think they are wearing fast.
 

Tazza

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What makes you think they are wearing? If you keep them greased they really shouldn't wear. The only possible cause is dirt is in with the grease but when you add fresh grease it should push that out.
How long have you had the machine, was it new? Could the pins have been replaced by the previous owner and they may not have used the proper ones and used mild steel?
 

skidsteer.ca

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What makes you think they are wearing? If you keep them greased they really shouldn't wear. The only possible cause is dirt is in with the grease but when you add fresh grease it should push that out.
How long have you had the machine, was it new? Could the pins have been replaced by the previous owner and they may not have used the proper ones and used mild steel?
The bucket tilt at the bucket end does tend to wear the fastest in my experience, especially on the early machines with the single tilt cylinder, This end tends to get a springle of dirt regularly which likely speeds the wear.
On my 553 I put a piece of mudflap over this pin to shead the gravel away
Ken
 

primebeef

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What makes you think they are wearing? If you keep them greased they really shouldn't wear. The only possible cause is dirt is in with the grease but when you add fresh grease it should push that out.
How long have you had the machine, was it new? Could the pins have been replaced by the previous owner and they may not have used the proper ones and used mild steel?
When I'm dumping the bucket and there is still a little dirt or mud in the bucket and go to shake it out the bucket goes flying forward. Hard to explain. When the bucket is down and the back of the bucket is on a stone or something, then when you step on the cutting edge the bucket will go down, seems to have alot of play. Maybe its just me.
 

primebeef

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When I'm dumping the bucket and there is still a little dirt or mud in the bucket and go to shake it out the bucket goes flying forward. Hard to explain. When the bucket is down and the back of the bucket is on a stone or something, then when you step on the cutting edge the bucket will go down, seems to have alot of play. Maybe its just me.
Bought new. 352 hours
 

primebeef

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That does sound like excessive pin wear.....
Yea I know, I have a John Deere skid steer too. That has about 1,050 or so hours and doesn't have that much play. On the JD, the pins are up higher on the plate which is better. More breakout force, and less pin wear, because the bucket will curl back easier. I'm real impressed with the Jd. Maybe have to get another.
 

Tazza

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Yea I know, I have a John Deere skid steer too. That has about 1,050 or so hours and doesn't have that much play. On the JD, the pins are up higher on the plate which is better. More breakout force, and less pin wear, because the bucket will curl back easier. I'm real impressed with the Jd. Maybe have to get another.
Don't say that around bobcat_ron, he hates Deere with a vengeance!
It sounds like you have a problem, its simply not normal to wear that fast. You may want to ask the dealer about it, see what they have to say about it all.
 

skidsteer.ca

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Don't say that around bobcat_ron, he hates Deere with a vengeance!
It sounds like you have a problem, its simply not normal to wear that fast. You may want to ask the dealer about it, see what they have to say about it all.
Who's grease do you use?
Any noticible play at those hours is excessive for a machine that has seen any grease.
Ken
 

bobcat_ron

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Who's grease do you use?
Any noticible play at those hours is excessive for a machine that has seen any grease.
Ken
I read that remark Tazza, BAH! Its quite possible that the pin is not the right type of steel, one of my upper bucket cylinder pins actually snapped in half, and it was a faulty pin, the good ones are almost a yellow colored type, much better than the chromed ones they had on the older styles.
 

primebeef

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Who's grease do you use?
Any noticible play at those hours is excessive for a machine that has seen any grease.
Ken
I grease them good. There is just something about bobcat's grease fittings. Its like they don't hold the grease or something. Heck the John Deere you grease them every 50 hours instead of bobcats 10. But I grease them more often then that. I use grease from Tractor Supply. Its called Traveller Premuim Truck and Tractor grease. On the back is says for servere applications.
 

primebeef

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I grease them good. There is just something about bobcat's grease fittings. Its like they don't hold the grease or something. Heck the John Deere you grease them every 50 hours instead of bobcats 10. But I grease them more often then that. I use grease from Tractor Supply. Its called Traveller Premuim Truck and Tractor grease. On the back is says for servere applications.
It's under warranty untill the first part of Feb, maybe they will put new ones in? doubt it, but I can try.
 

primebeef

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It's under warranty untill the first part of Feb, maybe they will put new ones in? doubt it, but I can try.
they are just going to say you didn't grease them, or you didn't use bobcat grease, I can't prove that I greased them
 

bobcat_ron

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they are just going to say you didn't grease them, or you didn't use bobcat grease, I can't prove that I greased them
It's also got a lot to do with the bushings around the pins, Bobcat is famous for not using any, if not enough of the right material, that's why they started using a softer pin, so the bushings and pins wear evenly. What's supposed to happen is the bushings are supposed to wear, and the pin stays the same, that's why I hate Bobcat excvators, their pins wear quicker, hell, my litle sh*t can Hitachi mini hardly sees any grease on a normal interval, and it's still tight after 700 hrs, I've seen Bobcat Excavators with the same hours, and the bucket looks like it's attached to a twisting knuckle or even a Roto-Tilter! Get a good grease and make friends with it, I grease my bucket pins avery 8 hours just to be safe.
 

Tazza

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It's also got a lot to do with the bushings around the pins, Bobcat is famous for not using any, if not enough of the right material, that's why they started using a softer pin, so the bushings and pins wear evenly. What's supposed to happen is the bushings are supposed to wear, and the pin stays the same, that's why I hate Bobcat excvators, their pins wear quicker, hell, my litle sh*t can Hitachi mini hardly sees any grease on a normal interval, and it's still tight after 700 hrs, I've seen Bobcat Excavators with the same hours, and the bucket looks like it's attached to a twisting knuckle or even a Roto-Tilter! Get a good grease and make friends with it, I grease my bucket pins avery 8 hours just to be safe.
The tilt cylinder pin should have seals either side to keep junk out too, the grease should hold in there pretty well.
LOL Bobcat_Ron, i knew you would see that :)
If its still under warranty talk to the dealer, it does sound like a fault to me.
When i did my 743 up, i machined out ALL pivot points so i could make bushings to suit. Every point now has a renewable bushing installed. Not that i will ever give it enough use to wear them out but i know if something was to happen i can throw a new pin and bushing at it and its back to how it should be. Its just poor design not having bushings, but i guess its good for the parts section. Its worn, just buy a new one, its only $2000.
 

primebeef

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The tilt cylinder pin should have seals either side to keep junk out too, the grease should hold in there pretty well.
LOL Bobcat_Ron, i knew you would see that :)
If its still under warranty talk to the dealer, it does sound like a fault to me.
When i did my 743 up, i machined out ALL pivot points so i could make bushings to suit. Every point now has a renewable bushing installed. Not that i will ever give it enough use to wear them out but i know if something was to happen i can throw a new pin and bushing at it and its back to how it should be. Its just poor design not having bushings, but i guess its good for the parts section. Its worn, just buy a new one, its only $2000.
Would this grease be any good? http://www.valvoline.com/pages/products/product_detail.asp?product=110
 

Tazza

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Lubriplate Low Temp. IMHO, Bobcat.
I use moly grease, not sure what brand but the temperature over here never gets below 0C so freezing grease is not an issue. If you live where it gets cold you must be sure your grease is rated for that temperature. Frozen grease has no lubrication what so ever.
Moly grease is a little messy but for me it seems to work really well.
Just remember to replace it more often on the bobtach as its exposed to a lot more dirt than the other pivot points. When you replace the grease it pushes out any contamination that may have gotten in that could be causing wear.
 

Fishfiles

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I use moly grease, not sure what brand but the temperature over here never gets below 0C so freezing grease is not an issue. If you live where it gets cold you must be sure your grease is rated for that temperature. Frozen grease has no lubrication what so ever.
Moly grease is a little messy but for me it seems to work really well.
Just remember to replace it more often on the bobtach as its exposed to a lot more dirt than the other pivot points. When you replace the grease it pushes out any contamination that may have gotten in that could be causing wear.
Something no one has mentioned is the quality of the metal and the temper procedures used in making the machines and pins , which personally I think is the problem ---------------as far as grease goes have you'll noticed that a lot of manufacturrs have gone to the theory that if the pin rides in dirt they don't put a grease fitting on that pin as they came to the conclusion that the grease actually attracts and holds the dirt and causes more wear than no grease at all , with that said I see no grease fitting pins with more hours and less wear than pins that are properly grease that are worn out , so I don't think grease is the problem , it's poor quality steel ---------------today I am doing the pins , bushings and bucket ears on a 322 dipperstick and cradle which are about as bad as I have ever seen -----how do you post pictures on this site , i would like to show and tell sometimes
 
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