Installation Hydraulic Connections; Venting - Enerpac WFL 221 Manuel D'instructions

INSTALLATION
Hydraulic Connections
1. Locate the work supports at the lowest point of the fixture's hydraulic system to aid
2. Install the work supports by either threading into the fixture, using the accessory
3. Hydraulic connections can be made at the side port or at the manifold port. If
4. The hydraulic power pump should not exceed 5000 psi (350 bar) maximum. Power

Venting

1. If the breather fitting (item A) is subject to a coolant flood condition, the breather
2. Venting can also be achieved using the optional manifold breather port (see
in bleeding. Work supports must be purged of air by cycling several times and
allowing air in the system to vent at the highest point in the system.
jam nuts, or bolting the flange onto the fixture. Mount the work support so that the
plunger is at the approximate middle of its stroke when contacting the workpiece in
the fixture.
making hydraulic connections at the manifold port, the port screw plug and copper
gasket must first be removed from the hydraulic manifold port (item D). Lightly
lubricate the provided O-ring (item C) and install it in the counterbore around the
port prior to mounting and bolting down the work support (see figure 3). Be sure
that the O-ring does not get pinched or damaged during this mounting as leakage
could result. To ensure that the manifold mounting does not leak, provide a fixture
mounting surface with a flatness within .003 inch (0,08 mm) and a surface
roughness average (R ) not to exceed 32 µin. (0,8 µm).
a
WARNING
The fixture manifold must be capable of withstanding
hydraulic pressure of 5000 psi (350 bar).
pumps must be large enough to provide a usable oil supply for the work supports,
hoses, clamps, and all items in the system. Refer to specifications table for
maximum applied loads vs. operating pressure.
fitting should be removed. Use tubing and a threaded connector to vent to a clean,
remote area of the fixture (see figure 2).
figure 3).
2a. Remove the screw plug and copper gasket from the manifold breather port
(item B).
2b. Lightly lubricate the provided O-Ring (item C) and install it in the counterbore
around the manifold breather port.
(4)