SECTION II (Con't.)
Open the bleed valve and allow air to escape from the low
pressure filter. Close the valve when air bubbles no
Connect the ½ inch hose assembly to the coupling half.
Set the outlet selector valve in the ½ inch outlet
Open the flow control valve.
Remove the reservoir fill cap. Remove the coupling half
from the opposite end of the attached ½ inch hose assembly
and insert the open end into the reservoir being careful
not to damage the screen in the filler neck of the reservoir.
Set the fluid volume control at 2 GPM as registered on
the fluid flow indicator.
Start the test stand and circulate hydraulic fluid through
the system and back into the reservoir until all traces of
air bubbles are gone from the fluid flowing into the
Stop the test stand and disconnect the hose assembly.
Cap both ends of the hose assembly and the coupling half
of the test stand.
Filter Element Replacements.
(A) The high pressure filter and the low pressure filter are
protected with differential pressure switches which, when
the pressure drop across the filter reaches a value at
which change of the filter element is required, illumin-
ates a red warning light on the control panel.
CAUTION: After every replacement of the low pressure