wet kit

[IASM]

Originally Posted by Boomper

Curious about your terminology, what you refer to as the Chelsea fan pump, is the fan the only thing the Chelsea pumps?

Our Intrigue is Cummins powered and obviously different. Our Chelsea PTO is not a pump or fan pump? as it is just a PTO. The PTO powers a Sauer Sundstrand hydraulic pump which sends hydraulic fluid to the radiator fan motor and through a separate hose to the power steering box up front.

On a cummins the Allison transmission has a power takeoff provided by chelsea. This pto drives a double pump. One section of the pump supplies hydraulic fluid to the fan motor that is speed controlled by a sour danfos hydraulic control valve. The other pump section provides hydraulic fluid to the power steering unit up front. Each pump section can be sized according to demand by the designer.

On most cat engines there is a location built into the engine for the power steering pump.On cat equipped country coaches they still use a pto to drive a pump for the fan but it is only a single pump .

[Boomper]

Originally Posted by IASM

On a cummins the Allison transmission has a power takeoff provided by chelsea. This pto drives a double pump. One section of the pump supplies hydraulic fluid to the fan motor that is speed controlled by a sour danfos hydraulic control valve. The other pump section provides hydraulic fluid to the power steering unit up front. Each pump section can be sized according to demand by the designer.

On most cat engines there is a location built into the engine for the power steering pump.On cat equipped country coaches they still use a pto to drive a pump for the fan but it is only a single pump .

Pretty much as I said. I don’t know about CATS. I replaced both the PTO and the SD hydraulic pump so am pretty familiar with the systems.
The OP had me confused about his system, hence my post.

Thanks for your info