Backhoe Broke My Backhoe

[rambler]

Most hyd systems start to leak a very tiny bit fairly soon, & you won't need to oil anything. /forums/images/graemlins/wink.gif

If you are storing outside, are you protecting the shiny parts of the hyd cylinders (the rods)? Now, if they rust & pit, you are talking _real_ money to fix that!!!!! A little grease on them will go a long way if you plan long-term outdoors storage.

--->Paul

 

[bmac]

<font color="blue"> Why do you have to take the plate off? Just lift up the rubber gasket/cover and squirt the oil (using an old oil can) on the mechanism. In fact, you can actually replace the part without removing the plate - I just did a week or so ago.
</font>

Grim,

Thanks for your suggestion. However, I went to check this out this evening to see if it would work for me and I don't see how it would.

In the attached picture it shows the plate in place (still not bolted in, just laying there). I know you know what this looks like - this is for the benefit of others who just like to look at photos.

 

[bmac]

Then, when I pull the rubber cover off, this is what you see:

 

[bmac]

Now, I want the oil applied at the green arrow, which is not accessable with the cover on, unless I squirt it somewhere arounf the red arrow and let it drip down.

 

[bmac]

Because I have a pretty skinny tip on my oil can and it won't get between the cover and that gold-colered plate.

 

[bmac]

Also, with the cover on, I can't get the rubber to stretch and snap over that flat plate. Well, I couldn't do it easily. Just gave it a quick try to see if it would just pop back on. Maybe with a little more effort I could negotiate it.

Obviously, your experience is much greater than mine and this approach works for you. It sure would be easier your way than mine.

Thanks again for your help.

Bruce

 

[bmac]

<font color="blue"> If there was "stiffness" in the control it may not have been caused by lack of oil. The "ball" in the socket has a plastic liner which, I suspect, may have been the cause of the stiffness </font>

Actually, the little ball thingy moves easily in the socket. No arthritis here. I tried to manually lift and depress the valve after applying some oil without success. Then I gave it a couple of light taps with a hammer. This allowed a little oil to seep in and since then the valve operates smoothly. But in the future, I'll be sure to do an arthritis check if oil doesn't do the trick.

Thanks again for the tip.

Bruce

 

[bmac]

<font color="blue"> A little grease on them will go a long way if you plan long-term outdoors storage.
</font>

I didn't plan on long-term outside storage - it just kind of happened. Any particular kind of grease you recommend? Or just pump a little out of the grease gun and smear it around?

Thanks for the suggestion.

Bruce

 

[Libertine]

bmac:

<font color="blue">Obviously, your experience is much greater than mine and this approach works for you. It sure would be easier your way than mine. </font>

Ha! Don't have much experience - it's just that mine has broken several times so I had to deal with it.

Thanks - pics good (worth 1000 words & all that). Carefully looking at them, the 756c looks set-up similar to the 758c I have, but there is a little difference. You are trying to let oil dribble down around the plunger rod which goes into the hyrdaulic distribution block. On mine, squirting from the top (above the cover plate in the crack between the rod/cover) let's it dribble down. If you sprayed/dribbled/dumped it from the small opening between the rod & cover why wouldn't it cover it adequately (soak in around the plunger)? I wouldn't think the oil would damage anything - you get hydraulic leaks anyway. I notice some of the nuts are even rusty - given that, I might even just "pour" it in, but that's just me.

Anyway, the few times I have left mine out I covered it with plastic tarp. A small one over the control panel would keep direct water out of/off the hydraulic block. Glad you arn't having "arthritic" problems - wait till you get older! The plastic in mine (ball sockets) was chewed a bit.

JEH

 

[rambler]

Ya, just a little grease gun grease - anything sticky. dad used to collect the extra grease that came out of joints in an old coffee can for such use. You just want a film on the shiny parts to keep the water from starting pits. Not a big deal for a month or so on a new machine, but after years & years & years, those few rains now & then add up.....

Say, those bolt heads are sure rusty in your pictures - are you in a salty area, or what gives? That looks pretty bad for something you said is only outside a little while so far?

--->Paul