TM 55-4920-394-13&P
Volume Control (29)
To be set to 'zero' flow
Fluid Bypass valve (24)
Open
Reservoir Selector valve (28)
Ship reservoir
2-4. Pre-Operation Fill And Bleed Procedure.
With controls in
the positions specified in
paragraph 2-3,
proceed as follows:
a.
Remove the hoses from the top of the test stand.
b.
Check that the connector fittings on the hoses and outlet and return fittings on the top of the test stand
are clean. If the fittings are dirty, wash the fittings with solvent, Federal Specification P-D-680.
c.
Connect hoses to corresponding outlet and return fittings (fig. 1-1). Connect high pressure hose to low
pressure hose using adapters.
d.
Place FILL PUMP switch (16, fig. 2-1) in ON Position.
e.
Place SYSTEM FILL valve in ON position.
Table 2-1. Controls and Instruments
CONTROL OR INSTRUMENT
DESCRIPTION AND
FUNCTION OR
LOCATION
OPERATION
Flowmeter
Tubular type; 0-30 gpm
Indicates the volume
capacity; panel
of fluid returning to
the system circuit.
Output pressure gauge
0-6000 psig located on
Indicates system
panel
pressure of fluid at
stand outlets.
BOOST PUMP PRESSURE
Compound gauge; 0-30 in
Indicates pressure at
gauge
hg vacuum 0-300 psig on
point selected by
panel
valve.
SIGHT TUBE
Lighted sight tube on
Flow of air-free
pan
fluid is observed.
FILTER BLEED valve
Spring loaded push
Bleeds air in cooler
button valve
and filter.
PRESSURE SELECTOR valve
4-Way selector valve on
Selects pressure
panel
readings at boost
pump outlet, H.P.
pump inlet suction
return line (boost
pump inlet) and back
pressure.
2-2