Tferrari1569
Member
On the cat 287b I know the drive pump is the biggest one bolted to engine. Now there is one in the middle and a small one on end. What are those both called?
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Cat 287 hydraulic pump
- Thread starter Tferrari1569
- Start date
Tferrari1569
Member
Hiflow machine. I have drive pump off engine. Then there is a medium size black pump and a small aluminum pump
Tferrari1569
Member
Where is the charge pump location
Don’t know this particular machine, but charge pump either at the end of the tandem pilot pumps, or sometimes if machine is pilot controlled then one of the gear pumps is pilot a and charge pump.
Nige
Senior Member
Same question as on your other thread - Post a Serial Number.
Then it will be possible to identify what pump(s) you have on the machine and what each one does.
Then it will be possible to identify what pump(s) you have on the machine and what each one does.
Tferrari1569
Member
Nige
Senior Member
Here you go. Your machine equipped with High Flow has an additional pump for the Work Tool in the centre.
The Charge Pump Part Number is a 220-8127. A new pump retails at $1,135.
If the pump is not damaged beyond repair internally then a repair kit (which includes E-seals, O-Rings, shaft seal, snap ring, backup seals, axial seal kit, & case seals) is Part Number 278-8716 & retails for $105.
The Charge Pump Part Number is a 220-8127. A new pump retails at $1,135.
If the pump is not damaged beyond repair internally then a repair kit (which includes E-seals, O-Rings, shaft seal, snap ring, backup seals, axial seal kit, & case seals) is Part Number 278-8716 & retails for $105.
Tferrari1569
Member
Ok. I have to pull my hydrostatic pump for a rebuild. I drained hydraulic tank tonight and was a little milky at first. Some how I need to flush the system
Check the filters for milky oil, typically that's water and may only have been in the tank bottom. If your filters show no sign of it and you're rebuilding the drive pumps anyway, probably no real need to worry. Of course you will put fresh filters in and change them after 50 or 100 hours, whatever mother CAT recommends.
Bill Ebert
New Member
Where did you find that diagram for the "work tool pump" I can't seem to find it.
Nige
Senior Member
I can't remember TBH. It may have come from a Training Manual.
EDIT: Looking at it again and considering the OP's question regarding what pump performs what function it appears as though I stitched together two illustrations. If you look at the charge pump on the left you can see that the ident numbers on the illustration are actually reversed.
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Bill Ebert
New Member
Ok, I was looking at the cat online parts website for CAT0287BPZSA02838 and it was not showing that work tool pump and I was confused if this one had it or not.
Nige
Senior Member
Search for 261-6097 Pump Gp or 261-6169 Hydraulic Arrangement.
ZSA02838 is High Flow and has a Work Tool pump but it is a different Part Number to the above and the illustration looks different.