26 ► MB156
User Manual
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 influence of outside
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 fluid 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), flow (GPM/LPM)
and temperature (°F/°C).
Restrictor Valve:
A valve on the flow 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 flow ratings at pressure.
V60/V65/V100 Valves:
A priority flow control valve manufactured by STANLEY. Allows for optimum
operation of any attachment by providing the proper amount of flow for
operation of the tool the “priority” aspect allows the attachment to function
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 flow of oil supplied to the tool by the V60/V100 valve.
By-Pass Flow:
The oil flow that is supplied by the carriers pump, but not used in the operation
of the attachment. By-pass flow equals inlet flow (to the valve) minus the
regulated flow.
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 flow rate as shown by the flow meter.
Full Open Pressure:
The pressure at which the relief valve is completely open dumping all system
flow 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
Summary of Contents for MB156
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