MB05 User Manual ◄ 25
Tool: The hydraulic attachment that the auxiliary circuit is intended to power. These
may include hydraulic breakers, compactors, shears, etc.
Operating Pressure: That pressure at which the tool will naturally operate without inuence of out-
side pressure relief mechanisms. This pressure is an operating characteristic
of the tool and cannot be altered by the end user without changing the tool
design.
Relief Pressure: The relief pressure is that pressure at which the circuit will dump uid in order
to protect itself from damage.
Back Pressure: The pressure at the tool’s connection to the return circuit of the carrier.
Flow Meter: Instrument for testing the operating characteristics of a hydraulic circuit. The
data usually available from this device are pressure (psi/bar), ow (gpm/lpm)
and temperature (°F/°C).
Restrictor Valve: A valve on the ow meter which allows the user to simulate an operating tool
by adding a pressure load (through restriction) to the circuit. This feature is
used to evaluate relief settings and ow ratings at pressure.
V60/V65/V100 Valves: A priority ow control valve manufactured by Stanley Hydraulic Tools. Allows
for optimum operation of any attachment by providing the proper amount of
ow for operation of the tool the “priority” aspect allows the attachment to func-
tion properly if another control function is activated.
Inlet Flow: The hydraulic oil supplied to the IN port of the tool or valve.
Regulated Flow: The ow of oil supplied to the tool by the V60/V100 valve.
By-Pass Flow: The oil ow that is supplied by the carriers pump, but not used in the opera-
tion of the attachment. By-pass ow equals inlet ow (to the valve) minus the
regulated ow.
Pressure Line: The hydraulic line(s) that supply pressurized oil from the pump to the valve or
tool.
Return Line: The hydraulic line that connects the OUT port of the tool to the tank circuit of
the carrier.
Cracking Pressure: The pressure at which the relief valve starts to open. Can be seen by a drop in
the ow rate as shown by the ow meter.
Full Open Pressure: The pressure at which the relief valve is completely open dumping all system
ow to the tank.
Ambient Air Temperature: The temperature of the outside air.
Stabilized Temperature: The temperature at which the carrier hydraulic system temperature will stop
rising during testing or operation.
DEFINITION OF TERMS
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