HIGH-LOW TANDEM GEAR PUMPS When pressure rises during clamping or feed, the large-volume main pump unloads and the small pump maintains pressure. These gear pumps offer the advantage of requiring lower power of the motor.
What is a Hi Lo circuit?
High-low circuit High-low circuit — Many systems require a high volume at low pressure for rapid movement of a vise or tool, then low volume at high pressure for clamping or feeding. This can be accomplished by a high-low circuit using two pumps. During rapid traverse, both pumps supply the system.
What is the difference between a single stage and a two stage hydraulic pump?
The reason why it is called a “single-stage” pump is because the flow of oil produced is the same on each stroke of the handle. ... Two stage hydraulic hand pumps give the operator higher flow rates up until the cylinder or ram starts to do work.
What is a two stage hydraulic pump?
Hydraulic pumps convert mechanical energy into fluid power energy. A small amount of fluid is designed to leak internally to lubricate and cool the internal components of the pump. ... The only function of the pump is to produce flow in a system.
What is a 2 stage pump?
A two-stage pump has two suction impellers operating side by side. The operator must decide if he wants volume or more pressure by selecting a switch on the pump panel. ... The pump operator must be comfortable with a transfer valve and decide when to use volume versus pressure.Apr 17, 2006
How do you adjust a 2 stage hydraulic pump?
- Adjust the hydraulic gauge by locating the adjustment screw on the back of the gauge. Use a flathead screwdriver to turn the screw. ...
- Adjust the pressure switch, located behind the hydraulic gauge, by using a wrench to loosen the lock-nut on the switch, then turning the adjusting screw.
How do you adjust the pressure on a hydraulic pump?
Observe the pressure gauge and use a 1/8 inch Allen wrench and slowly turn the adjustment screw to obtain the desired pressure setting. Clockwise rotation of the adjustment screw will increase the pressure setting and counter- clockwise rotation will decrease the pressure setting.
How do you adjust a hydraulic pump on a wood splitter?
- Start the engine on your log splitter as you normally would. ...
- Set the pump lever in the neutral position. ...
- Twist the screw on the side of the pump clockwise with a flat blade screwdriver to increase pressure, according to the scale printed or embossed on the side.
How do you adjust a pump compensator?
https://www.youtube.com/watch?v=jYPSwhAgvBM
What is the purpose of a two stage hydraulic pump?
Hydraulic pumps convert mechanical energy into fluid power energy. All hydraulic pumps are positive displacement which means the outlet flow is sealed from the inlet flow. A small amount of fluid is designed to leak internally to lubricate and cool the internal components of the pump.
What is the difference between single stage and multistage pump?
The primary difference between single-stage and multistage centrifugal pumps lies in the number of stages (also referred to as impellers) they have. As the name implies, single-stage pumps have only one impeller, whereas multistage pumps have at least two.Apr 8, 2021