Caterpillar E110B hydraulic pump

excavator · Jul 18, 2018

I'm looking for either a good used/ re-buildable pump for a Cat E110B, serial number 9HF01940. It appears that the E120B is the same just set different. The current pump needs both rotate groups replaced and it looks like around $10,000.00 to fix. Thanks in advance.

mikebramel · Jul 18, 2018

Sounds like a lot. I think you can cross those parts over to some companies in Asia.... but, not something that will fall into your lap I can tell you that LOL

excavator · Jul 19, 2018

mikebramel said:
Sounds like a lot. I think you can cross those parts over to some companies in Asia.... but, not something that will fall into your lap I can tell you that LOL

Yes, I've looked at Chinese rotate groups, advertised for $1000.00 each but am just a bit leery of going that way. Not saying it won't happen, would just rather not if possible.

Vetech63 · Jul 19, 2018

excavator said:
Yes, I've looked at Chinese rotate groups, advertised for $1000.00 each but am just a bit leery of going that way

Smart man. Have you checked the used or salvage market?

mikebramel · Jul 19, 2018

You can tell defective parts before you install them. If you cant pull the shoes off, oil holes are good, and the barrel clearance is tight should run. Just because it's made over there doesnt mean much nowadays. But, your call.... obv at $10k they've priced themselves so you feed the parts to fellow vultures lol

nobbie · Jul 21, 2018

Gday
Recently bought complete internals for two pumps on a cat e140
it has a daikin vxd 70 pump
total cost 1150 aussie dollars
bearings cost 450 aussie

Good old China they have a thing called ali baba its like ebay sort of.
I dealt with shanghi ? hydraulic Pistons,plates,cartridges valve plates and slipper plates
all quality seemed ok

John C. · Jul 24, 2018

A few years ago one of my customers called me to inspect a barrel assembly that cracked through one of the cylinders at five hours of operation. I measured the thickness of the material between the piston side of the barrel and the outside and found it to be 0.020 inch smaller than the factory made piston and barrel assembly. Since you are rebuilding, it is something you might check before all the labor to put it back together and in the machine.

Dave Neubert · Jul 26, 2018

Contact HSP pump the can rebuild it for a whole lot less 800-704-7302

nobbie · Jul 28, 2018

Hi John
I measured mine and sure enough the new barrell was 20 thou smaller than the original barrell from piston bore to barrell outer wall but what are you meant to do when cat do not supply the parts anyway...superceeded but with what they did not know.
I reckon she will be right still enough meat there.
Only worry i am having is swash plate preload as the plate runs between two tapered roller bearings in a cradle so i went for no slop and a slight drag on the swash control link can move easily with two fingers but it will not move on its own.

John C. · Jul 28, 2018

Nice work on making the check. Note it down in case something happens in the near term.

I haven't done any work on the Caterpillar excavator pumps specifically apart so don't know what to say about pre-load for the swash plate. Just from my experience though I would say I probably would have done it the same way.

excavator · Jul 28, 2018

A bit of an update, according to the pump shop the front bearing failed causing the rest of the problems. I've been told this is not uncommon for these pumps and judging by the fact that I can't seem to find even a good used core I'm thinking that they did indeed have issues. So, we're currently looking at adapting a Kawasaki pump in its place. Looks to be a fairly straight forward deal but I've heard that before.

I will try to keep you up dated.

nobbie · Jul 28, 2018

Hi Excavator
I thought similar so i guess you would simply need any pump that gave similar output
I was nearly going with rexroth a10v 71's and would of fit a soft start solenoid
Even gear pumps would probably work if they put out enough.
I guess you would need 150 litres per minute or there abouts and most likely a pilot pump or i imagine you could sneak some flow from the main pump with a press reducing valve if pilot pump not available.
It all comes down to dollars for me as everything is so dear now days

excavator · Jul 29, 2018

Kawasaki K3V63--. Very popular pump, Daewoo, Doosan, Hyundai, Kobelco and I'm thinking some Samsung/Volvo machines (maybe more) all used them. I compared the Cat vs Kobelco schematics and it looks very doable. The only other real issue might be the shaft size/length for a coupler. The Cat uses a standard Lovejoy coupler.

Caterpillar E110B hydraulic pump

excavator

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mikebramel

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excavator

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Vetech63

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mikebramel

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nobbie

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John C.

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Dave Neubert

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nobbie

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John C.

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excavator

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nobbie

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excavator

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