Hydraulic pump - Technical Troubleshooting discussion in Forkliftaction's forums

Hyster H3.00XM:
Hydraulic pump

I have just changed the hydraulic pump that goes into the transmission under the left side foot well. All functions are very slow until you give it gas. Also screeching noise coming from transmission when tilt and sideshift are operated. Any ideas?
Thanks

Posted 21 Apr 2016 01:47
Discussion started by dan_r
West yorkshire, United Kingdom

DMR

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It sounds like there is a problem internal to the transmission. A gear pump has fixed displacement, so each revolution displaces the same volume of oil. If the displacement is low there must be something slipping in the pump drive.

Posted 21 Apr 2016 06:13
Reply by BREWSKI
Nebraska, United States

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No power steering or hydraulics. Damage to drives in pump when i took the pump apart

Posted 21 Apr 2016 05:03
Reply by dan_r
West yorkshire, United Kingdom

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What was the problem with the original pump?

Posted 21 Apr 2016 04:38
Reply by BREWSKI
Nebraska, United States

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