6610 hyd weak

MidwestSpecial · Apr 18, 2016

With oil warm checked pressure at remotes
Idle - 400 psi
1200rpm - 1000psi
1600rpm - 1500psi
1800rpm - 2000psi
2100rpm - 2500psi
2200rpm - 2550 psi

It has pump on trans and engine changed filters on both did not help

Bern · Apr 18, 2016

I'm guessing worn main pump and/or blown seals in pump. With the right adapter, pump flow can be checked directly for proof.

It could also be a sticky spool in your priority pack, but my money is on the main pump.

Destroked 450 · Apr 19, 2016

The pump on the engine operates the remotes.
The pump in the rear axle housing operates the lift arms and pto clutches.

Bern · Apr 19, 2016

The pump in the rear axle housing also operates the remotes.

MidwestSpecial · Apr 19, 2016

Thanks where would you get a flow meter
checked spools they all slid out easy but the oil had a metalic look to it in the sun light

RodinNS · Apr 19, 2016

The pump on the engine provides supplemental flow to the remotes through the combining valve. The main pump provides sole flow to the hitch
and primary (control) flow to the remotes. The tandem (rear) section piggybacked to the main pump provides clutch circuit pressure and
pressure lubrication oil to the transmission.

Rod

RodinNS · Apr 19, 2016

I would wager that you have two bad pumps... usually a stuck combining valve will yield zero pressure at all speeds.

Rod

dmbinva · Apr 19, 2016

Your pump is shot, replace it and be sure to flush the system
Boss

6610 hyd weak

MidwestSpecial

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Bern

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Destroked 450

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Bern

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MidwestSpecial

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RodinNS

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RodinNS

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dmbinva

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