Enerpac B Serie Hoja De Instrucciones página 5

PUJ 1400B/E and PUJ-1401B/E Models
Control valves on PUJ-1400B/E and PUJ-1401B/E pumps are 4-way, 3-position, for use with
double acting cylinders where advance and retract are hydraulically actuated.
Valve positions are shown in Figure 7: 1-Advance
In each position the cylinder movement is controlled by the pendant switch.
PUD-1100B/E and PUD-1101B/E Models
The PUD-1100B/E and PUD-1101B/E operate single-acting cylinders where the hold function is
not necessary.
Pressing the pendant switch starts the motor and advances the cylinder. When the switch is
released, the cylinder will retract.
Thermal Relay (All models)
To protect the pump from damage, an internal relay switch shuts off the motor when the oil
temperature reaches 150°F(65°C). When the temperature drops to 130°F(54°C) the relay will
automatically reset.
Air Removal
When the hydraulic system is connected for the first time, air will be trapped in the components.
To ensure smooth, safe operation, remove the air by running the system through several complete
cycles without a load on the cylinders. When cylinders advance and retract without hesitation, the
air is vented from the system.
To avoid injury and equipment damage, do not continue pressurizing
cylinders after they reach maximum travel or maximum operating pressure.
RELIEF VALVE ADJUSTMENT
(PUJ-1400B/E and PUJ-1401B/E models are not equipped with external adjustable relief valves.)
The main pump relief valve is internal and non-adjustable, factory set for 10,000 psi (700 Bar)
maximum operating pressure.
An additional external relief valve is located under a hex cap on the right side of the pump. The
external relief valve is adjustable from 10,000 psi (700 bar) down to 2000 psi (140 bar).
Operating pressure limits can be reduced below 10,000 psi (700 bar), but not above 10,000 psi
(700 bar).
WARNING
2 1
3
Figure 7
5
2- Retract 3- Neutral.