How to remove pin

[dfkrug]

Do you have the CBL40 3-point hitch option, and do you ever use it?

 

[Morning Wood]

It has it, but I don’t think the backhoe has ever been off. Although I did see a york rake kicking around so it might get taken off every once and awhile. Not my machine.

 

[taem]

Would like to second the use of an impact tool with penetrating oil. first briefly heat the zerk, then run two or three rounds of oil with a hammer. return the next day, repeat if necessary, usually works.

 

[joea99]

I’m borrowing a yanmar cbl 40 from a friend. The deal is I grease and change oil. I was not able to get the thumb cylinder at thumb to take grease. Fitting is ok. I did everything I could do. Next step is to remove the pin. Before I start bashing on things I’m wondering if the pin has caps or something on it. The retaining bolt comes out fine, but the ends of the pin have little threaded holes. Are those caps that need to come off to access the pin or is it the pin itself?
Thanks,
Nick.

I've not read all the replies so maybe this is a repeat, but

I'd never presume to do ANY work on a borrowed machine without the owners express agreement.

I know I'd be pissed off if someone, in the process of "helping me out" did some maintenance on my machine and something went wrong.

Just a few words of caution as I don't lend tools or machines. Anymore.

 

[rScotty]

Would like to second the use of an impact tool with penetrating oil. first briefly heat the zerk, then run two or three rounds of oil with a hammer. return the next day, repeat if necessary, usually works.

What has kept me from doing that with the impact tool I bought is that with a light penetrating oil, a cylinder piston and a hammer .... the whole setup begins to look to me a lot like a one shot compression ignition diesel.
rScotty

 

[pacosperson]

I’m borrowing a yanmar cbl 40 from a friend. The deal is I grease and change oil. I was not able to get the thumb cylinder at thumb to take grease. Fitting is ok. I did everything I could do. Next step is to remove the pin. Before I start bashing on things I’m wondering if the pin has caps or something on it. The retaining bolt comes out fine, but the ends of the pin have little threaded holes. Are those caps that need to come off to access the pin or is it the pin itself?
Thanks,
Nick.

I have an old K-D 416 device that is a piston/sleeve you disassemble, fill with light oil, put against a STRAIGHT grease fitting, and hit with a hammer. It blows out the old, hardened grease. It's expensive for a tool you will rarely use. I've had mine since the early 70's. It has saved me a lot of work a few times over the years. It's still available, look it up.

 

[Morning Wood]

I've not read all the replies so maybe this is a repeat, but

I'd never presume to do ANY work on a borrowed machine without the owners express agreement.

I know I'd be pissed off if someone, in the process of "helping me out" did some maintenance on my machine and something went wrong.

Just a few words of caution as I don't lend tools or machines. Anymore.

You should have read all posts. The agreement was that I do maintenance on it as payment for borrowing.

 

[joea99]

You should have read all posts. The agreement was that I do maintenance on it as payment for borrowing.

Nah. Takes all the fun out of it.

But I did read yours, you should too.

It says "grease and change oil", not "maintenance". To me those are different things and I would not go into anything else without further consult.

But, that's me.

Have a happy.

 

[Dennis Mohn]

I’m borrowing a yanmar cbl 40 from a friend. The deal is I grease and change oil. I was not able to get the thumb cylinder at thumb to take grease. Fitting is ok. I did everything I could do. Next step is to remove the pin. Before I start bashing on things I’m wondering if the pin has caps or something on it. The retaining bolt comes out fine, but the ends of the pin have little threaded holes. Are those caps that need to come off to access the pin or is it the pin itself?
Thanks,
Nick.

I worked many years as a field service heavy equipment mechanic. Heat the pin boss with a good torch , get it good and hot, oil the ends so it draws the oil into the space between the pin and pin boss . hit the pin boss with a heavy hammer, then try flush greasing. If the pin boss does not have grease fittings you may want to drill and tap , and add grease fittings to the pin boss. most pins I have worked with in the past were drilled to provide lube to the cylinder end and not the attachment, grease goes to the middle of the pin and is forced to the outer ends. . after torching out a few of these I started adding grease fittings .

 

[WranglerX]

I worked many years as a field service heavy equipment mechanic. Heat the pin boss with a good torch , get it good and hot, oil the ends so it draws the oil into the space between the pin and pin boss . hit the pin boss with a heavy hammer, then try flush greasing. If the pin boss does not have grease fittings you may want to drill and tap , and add grease fittings to the pin boss. most pins I have worked with in the past were drilled to provide lube to the cylinder end and not the attachment, grease goes to the middle of the pin and is forced to the outer ends. . after torching out a few of these I started adding grease fittings .

Why would you try to do this when pin is stationary in boss.... Actually what you really want to do is clear grease passage in pin so end of ram is lubricated on pin....