Cat e 140

[TVA]

Thanks!

 

[nobbie]

The gasket on the round thingy is sort of shim/spacer gskt to enable swash plate to move freely the bearings mount either side without that dirty gasket the swash plate was too tight

 

[nobbie]

it seems cat have a special machine to preload it all but since they cant supply parts i guess they wouldnt have that machine any longer.
I did it firm with no side ways slop but still able to move swash with two fingers.

 

[TVA]

That’s why Kawasaki is better pump, one of the reasons - you don’t have to mess with bearing preload!
Is a Daikin is regional thing? Because I don’t remember seeing any here in USA, talked with my friend in Europe and he never seen it either! There’s whole bunch of Daikin refrigeration equipment here though!

 

[TVA]

Can you give me the full pump number? I’m really interested in this thing!

 

[TVA]

You can get preload information from bearing manufacturer. Temperature up to 92*C

 

[nobbie]

vxd-70-1-h-g daikin
The digger is half mitsubishi/half cat must of been when cat just bought mitsubishi out

e 140 cat or ms 140 mitsi

Its the first Daikin pump i have seen or heard of.
Local cat rebuilt this pump some time back maybe five to ten years back and charged the guy 15 k then

 

[TVA]

See if you can get Tong Myung parts for it, they seem to be OK price/quality wise.

 

[TVA]

And another thing - I don’t think that number is a Daikin ( at least i couldn’t find it ). See equipment manufacturers change numbers on a name plates to their own code, so when you need a component you can’t just order one from original manufacturer, they want you to come to their dealer so they can make a buck out of you. But I did saw reference to Komatsu about this pump.

 

[TVA]

My friend saw the picture of the parts and he said that it looks exactly like old Sauer Danfoss series 20 pump. I read that Sauer Danfoss had cooperation agreement with Daikin for many many years!

 

[nobbie]

Thanks very much for that.
I have been in touch with original Chinese company that sold me the parts to see if they will replace at their cost but even if they do i would still be hesitant as am now unsure of their quality.
What would be best sauer or Tong Myung.
It all bloody costs oil,filters ,time etc and you are always worried till you get at least a hundred or two hours on it.

 

[TVA]

I don’t know if any of those suppliers carry the parts, you’ll have to check with them!
I amagine that Sauer Danfoss will be more expensive but higher quality.
Check with Komatsu about this pump too.

 

[nobbie]

front pump was wearing through where slippers fit on to piston.
I guess the back pump wore through much quicker.
So any ideas of the cause?

 

[TVA]

Does it have a lot of slop in that spherical joint?

 

[TVA]

How does the swash plate and bottom of the shoes look?

 

[nobbie]

Shoes look OK slight scuffing on bottom plate no slop in spherical thing but maybe too much clearance between separator and piston slipper perhaps something out of balance looks to be chattering until it cuts slippers off

 

[TVA]

These kinds of damages usually caused by high inlet to case pressure differential ( vacuum ) combine with highe case pressure. See I don’t really agree that high case pressure alone will do it ( aside from damaged seals ) because case pressure is everywhere inside that pump and do not create any additional kinetic forces, that’s the difference in pressure that reeks havoc.

 

[nobbie]

Unless it springs from cartridge that preloads bronze which in turn preloads slipper thrust onto plate therefore oil leakage at slipper bottom forcing up when intake and chattering. I reckon that what it may be. I gotta sleep so check back later

 

[TVA]

Shoes look OK slight scuffing on bottom plate no slop in spherical thing but maybe too much clearance between separator and piston slipper perhaps something out of balance looks to be chattering until it cuts slippers off

That retainer pushes against tha swash plate by the sphere on the piston barrel? The problem could be not enough axial force to retaining ring.

Unless it springs from cartridge that preloads bronze which in turn preloads slipper thrust onto plate therefore oil leakage at slipper bottom forcing up when intake and chattering. I reckon that what it may be. I gotta sleep so check back later

Yep! And I don’t have it here but look and see if the too thick of a gasket under that three bolt bearing holding end cap might be a problem, plus aftermarket cartridge/ barrel/ cylinder block can be too short.

 

[TVA]

That retainer pushes against tha swash plate by the sphere on the piston barrel? The problem could be not enough axial force to retaining ring.


Yep! And I don’t have it here but look and see if the too thick of a gasket under that three bolt bearing holding end cap might be a problem, plus aftermarket cartridge/ barrel/ cylinder block can be too short.

You see not enough force to the retaining ring not really an issue unless you have vacuum in inlet section, because piston shoes gets pushed against the swash plate by system pressure, but when they go to suction side that’s another story!

Is there any cavitation marks? Anyway you really need to check out the suction strainer, hose and the whole passage, and return filter, case drain hoses! And also check pressurizing valve on top of the tanks breather!