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These
light-weight but powerful two-stage pumps are particulary
designed for maintenance and repair jobs. Depending on their
type, they can either operate single-acting or double-acting
hydraulic cylinders.
The ideal
combination of manual operated valve and remote pendant
control provides the operator with ample freedom of motion
and ensures a safe "holding of the load".
The
remote pendant control (1.5 m) is used to start the motor
even under full load. The function for both manual valves
is as follows: - advance - stop - return - With their light
weight and convenient carrying handle, these pumps can be
easily transported. Pumps are equipped with thermal overload
protection and are supplied with hydraulic oil.
Operation of the power pump model PY-04/2/5/2 M:
The 2/2-way manual valve operates together with a pilot
operated unloading valve, so that the two valve positions
result in the following two control possibilities:
1. Cylinder holds pressure after motor stop.
2. Cylinder automatically retracts after motor stop.
Operation of the power pump model
PY-04/2/5/2E:
By activating the push button number 1, the motor
starts and the cylinder advances. In the neutral position
the pressure is held. By activating the push button number
2, the solenoid valve is activated, the pressure decreases
and the hydraulic cylinder retracts. |