Originally Posted by mobetah
My watermaker is homemade and I am installing a different motor and pump. The Cat pump can be operated in forward or reverse rotation however Cat recomends forward rotation because it oils the inner workings better (reverse rotation requires a higer oil
level in the pump). The motor is a Baldor explosion proof 1/3hp. True, there is only one way to attach the pump to the motor however there is still two directions the motor's shaft can spin (depending on the wiring). I assume that is what Cat is refering to as forward or reverse rotation. As I asked earlier, when the motor's shaft spins in the same direction as a drill would when drilling a hole is the motor operating in forward rotation?
Thanks again, Bill A.
So what you really need to know is the Cat pumps forward rotation not the motor rotation. Once you have that the motor rotation is easy.
What is the direction of operate for CAT PUMPS?
For optimum performance, CAT PUMPS piston and plunger pumps should be operated in a forward rotation with the crankshaft turning towards the manifold.
This takes full advantage of the oil bath, splash lubrication and assures the cross heads of the plunger rods are fully lubricated. Reverse rotation is acceptable,however, the crankcase oil level should be slightly higher. For normal forward rotation, fill to the center dot on the rear cover Bubble Oil Gauge. For reverse rotation, fill to halfway between dot and the top of the Bubble Oil Gauge.
Just for further confusion, your motor should be labeled as such...
CCW / LE or CCWLECounter clockwise from the lead endCCWSECounter clockwise from the shaft endCW Rotation OnlyShaft can only rotate in a clockwise positionCW / OLEClockwise opposite lead endCWLEClockwise from the lead endCWSEClockwise from the shaft endDouble Shaft / CCWLESpins counter clockwise on a double shaft from the lead endDouble Shaft / CWSESpins clockwise on a double shaft from the shaft endCW / CCW or ReversibleClockwise or counterclockwiseECWEither clockwise or counterclockwise, connected for clockwise rotation at factoryECCWEither clockwise or counterclockwise, connected for counterclockwise rotation at factoryReversing PlugSwitching the reversing plug
changes the rotation of the shaftCW or CCWThe real meaning of these labels is dependent on the manufacturer.
PS Please send me pics of your homemade watermaker.