HG3555A/42306 Portable Power Unit
Greenlee Textron / Subsidiary of Textron Inc.
7
4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
Hose Connections
Do not disconnect tool, hoses, or fittings while the power unit is running or if the hydraulic fluid is hot.
Exposure to hot hydraulic fluid can cause serious burns.
Figure 3 shows the power unit being used with a typical
tool.
Connecting Hoses (See Figures 1 and 3)
1.
Stop the power unit.
2.
Connect the return (tank) hose from the power unit
port to the tool return port (T).
Note: Return (tank) hose connection should always
be connected before pressure (supply) hose
connection to prevent pressure build-up inside
the tool.
3.
Connect the pressure (supply) hose from the power
unit pressure port to the tool pressure port (P).
Disconnecting Hoses (See Figures 1 and 3)
1.
Stop the power unit.
2.
Disconnect the pressure (supply) hose from the
power unit pressure port to the tool pressure
port (P).
Note: Pressure (supply) hose connection should always
be disconnected before return (tank) hose
connection to prevent pressure build-up inside
the tool.
3.
Disconnect the return (tank) hose from the power
unit return port to the tool return port (T).
4.
To prevent contamination, always install dust caps
over the hydraulic ports of the tool, hoses, and
power unit when disconnected.
Figure 3
Hydraulic Schematic
PRESSURE
PORT
RETURN
PORT
TYPICAL
TOOL
PRESSURE
PORT (10 GPM)
PRESSURE
PORT (5 GPM)
PRESSURE
PORT (5 GPM)
RETURN
PORT
RETURN
PORT
FLOW
METER
CONTROL
VALVE
CONTROL
VALVE
RELIEF
VALVE
2000 PSI
RELIEF
VALVE
2000 PSI
PUMP
ENGINE
OIL
COOLER
FILTER
(10 NICRON)
POWER
UNIT
C2 C2
C1 C1
R
P
R
P