These pump are widely used on dump trucks, tractor trailers and heavy duty trucks. They have a one piece drive shaft and gears made of steel, which are help up by roller bearings. It also has pressure balanced thrust plates that give a seal for constant efficiency and hold up to the pumps reliability. There…
Read moreYou have model PD and PDC, that can split a single flow of hydraulic oil using these units. The flow percentage coming from the outlet ports stay the same even in load differences in between the ports. Most of these ratios are set at the factory but you can have them adjusted to 90/10 if…
Read moreSeries valve circuits lighten the pump flow to the tank when all the 4 ways are in the midpoint position. Pump flow goes thru each of the valves, then the pressure drops additive in. They also have the potential to give the two valves a positive motion of being two functions by applying the exhaust…
Read moreThe selector valve makes the flow of the oil go to two different circuits. It will allow the ports of two double acting cylinders that have a one four way control valves or four single acting cylinders that have a two two three way control valves. You will need to decide which hydraulic circuit before…
Read moreThese types of pumps can be changed out with MG and MF, Charlynn H/S and Danfoss OMP/OMR, as well as Parkers. Features on these pumps are that they have a modified driven link splines for less chipping, match ground shaft to housing fit, viton shaft seal, three zone rotor set and closed end keyaway. You…
Read moreThese valves on the 300 Series have built in relief valves and the shim is adjustable, built in load check, an interchangeable hardened relief valve and built in load check. This valve is made to operate as a single acting cylinder or a uni directional hydraulic motor. The spool is a 3 way and 3…
Read moreWhen you putting in another pump or motor, make sure you know all the major changes are accounted for. You will need to know the right system pressure, rpm range, direction of the rotation, shaft size/type, ports size/type and what kind of mount. If you don’t know the correct rotation of your pump, it will…
Read moreHere are some characteristics of these motors Motor Fixed Displacement Term Series 46 Displacement max. ………………………………. in 3/rev. 10.3 Pressure Ports A & B ……………………………. PSI 5000 Speed full displacement max ……………… RPM 2400 Flow, max. theor 1200 RPM ……………….. GPM 53.0 Flow max theor 1800 RPM …………………. GPM 79.5 Flow max theor 2400 RPM…
Read moreA bearing clearance is the amount a bearing ring moves in relation to the other under a give small measuring load in a radial direction or in an axial direction. For radial bearings, the radial clearance is of primary importance. The radial clearance in ball bearings should be close to zero when the bearing has…
Read moreExtending a Cylinder The high pressure oil goes thru the control valve into port A. Then it goes thru the transfer tube in the rod to the base of the cylinder where pressure moves on the area of the biggest piston and extends all stages to the first stop ring. Following that the rod begins…
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