Gage Bilt GB745 Manuale - Pagina 4
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PRINCIPLE OF OPERATION
When the air actuator ass'y is depressed, the pressurized air inside the tool is released allowing spring
pressure to move the valve spool, causing the air to be redirected. The air is directed to the top side of the air
piston, moving it in a downward direction. The air below the air piston is then directed through the valve
sleeve and exhausted out of the bottom of tool. Simultaneously, the piston rod connected to the air piston is
also moving down, forcing hydraulic oil up and into the front side of the cylinder head, causing the piston to
move to the rear of the cylinder head. The oil from the rear of the head cylinder is directed to the top of the
piston rod assembly inside the power cylinder. The internal components of the attached nose assembly are
also moving with the piston to start the fastener installation. When the fastener installation is completed, the
air actuator ass'y is released. Air pressure is then built up inside of the handle causing the valve spool to
return to its original position and reversing the sequence.
OIL
OIL
CYLINDER
PRESSURE
PRESSURE
HEAD
HEAD
PISTON
OIL
PRESSURE
PISTON
ROD
OIL
PRESSURE
AIR
PRESSURE
AIR
AIR
PRESSURE
PRESSURE
AIR
AIR
PISTON
PISTON
VALVE
SPOOL
AIR
PRESSURE
AIR
PRESSURE
REAR POSITION
FORWARD POSITION
Image may not reflect actual tool
EXHAUST
4
Rev. 1/14