the old grind
Super Member
- Joined
- Jul 21, 2012
- Messages
- 5,056
- Location
- Mid-Michigan
- Tractor
- NH T-1520 HST, NH TC33DA HST, Case DX26 HST, .Terramite T5C, . NH L785
A common cause of 'power loss' hasn't been proposed (yet), not that it's the fix here. 'Feedback' adjustment on the 3PH. If it's just a bit off, hydraulics can deadhead and sap power. BTDT Hydro pump will usually 'max' at less than full throttle/rpm and and FEL may work normally while o'all power is noticeably impaired. (Hydro running at relief pressure the whole time..)
Want to evaluate such symptoms with the 3PH at various heights (vs fully 'up'), a quick way to rule out this possibility. Pressure testing here or there may point to a sticking valve somewhere in the loop that also causes hydro pump to deadhead. (interested to hear what the dealer finds.)
Want to evaluate such symptoms with the 3PH at various heights (vs fully 'up'), a quick way to rule out this possibility. Pressure testing here or there may point to a sticking valve somewhere in the loop that also causes hydro pump to deadhead. (interested to hear what the dealer finds.)