Cat 955 L

[Spyros33]

Hello everyone.
Started work again last week so my project is going a little slow now due to limited time.
Anyone have any info on the hydraulic pump on my machine? (Capacity, pressure port size) Serial number 64J6418

 

[Spyros33]

 

[Spyros33]

Guy was asking too much for the ripper valve parts and after some thinking i desided to use a 6 way / 2 position solenoid operated diverter valve, so i can operate the ripper with the bucket dump/curl control.

Will let you know how it goes

 

[Welder Dave]

Here's a brochure. Not sure if it covers your serial number but should be close enough. I think your diverter valve will be seriously undersized and potentially cause a lot of heating of the hyd. fluid when using the bucket.

385.pdf (erbequipment.com)

 

[Spyros33]

Well, after looking at the spec's on the brochure i think you are right. I spoke with my supplier and he will bring me a bigger diverter valve, with 3/4 ports and rated flow 140 l/ min.
Hopefully this one will be less restraining

Thanks Dave!

 

[Spyros33]

bigger and better!

 

[Welder Dave]

140L/minute is only about 37 (US) GPM.

 

[Spyros33]

I know but this is the biggest i can go with my budget
I will use 1" hoses to equalise the narrow passage

 

[Welder Dave]

Bigger hoses won't compensate if the valve can't handle the flow. Flow is another 20 GPM more than the valve is rated for. I think you need to look for another option.

 

[56wrench]

if i remember correctly, cat may have used some bigger mechanically activated diverter valves operated with a lever/linkage. somebody on here may have more information but they may be hard to find

 

[Nige]

if i remember correctly, cat may have used some bigger mechanically activated diverter valves operated with a lever/linkage. somebody on here may have more information but they may be hard to find

See text in post #143 above.

 

[Nige]

I did actually manage to find all the info regarding the hydraulic installation & control valve for a 955L ripper and sent it to Spyros some time back. I'm sure that finding the parts is another story entirely.

 

[Spyros33]

Nige did send me the list of all the parts required and also did warn me that laying my hands on the actual parts could be difficult. And it is.

That is why i chose to go with a diverter valve.

I was originally looking for a diverter valve to install on the main supply and also use an extra double directional control valve to operate ripper and
Blade tilt (when installed).

But that was too expensive.

Next thought was to get a control valve with power beyond facillity, place it on the main pump supply, and connect the return to the loader control valve. But the control valve required would be at least 1 1/4 size, and that was also too expensive.

So option no 3 was to install a 6/2 diverter valve on the bucket controls.
I realise that there is a chance of oil overheating, but looking at the lines of the bucket cylinders it seems that the bucket curl Hard lines are 3/4 and bucket dump lines are even smaller, like 1/2.
So i am not sure if the diverter valve will cause much difference.

 

[Spyros33]

Had to cut the Hard line and weld 3/4 fittings on the ends. Installed valve and hoses, now need the electric lines and switch.

 

[Welder Dave]

Hopefully the brazing holds.

 

[Spyros33]

I used a 3/4 tap and made threads in the pipes, screwed the fittings and then welded them.

 

[Spyros33]

Found some brackets From my old jcb backhoe that i can use for blade lifting links.

Figured i should add some iron on them though

 

[DMiller]

Admire the tenacity but the GPM L/M capacity of the diverter is the internal porting not the line restrictions. I would monitor the hydraulic temps really close to keep from cooking seals going with this unit.

 

[Spyros33]

Hi folks! Long time no hear.
February was maintenance month in the fishfeed factory i work, and March is time for pruning my olive trees.
I managed to Steel some time and get some work done on the loader Last week and hopefully next week is transportation time

Lift arms in place

Welded some reinforcement plate to take some of the stress off the screws


Modified an old cylinder to make the tilt operation

 

[Spyros33]

Had to get new exhaust manifold because the old one was badly corroded and kept burning the gaskets

Took radiator off and opened it up to clean it.
Glad i did so because it was full of leaves, mud and rust. Seems that previous owner was adding river water