Gage Bilt GB730 User Manual - Page 4
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PRINCIPLE OF OPERATION
When the trigger 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 trigger 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
AIR
VALVE
PRESSURE
PRESSURE
SPOOL
AIR
AIR
PISTON
PISTON
AIR
PRESSURE
AIR
PRESSURE
REAR POSITION
FORWARD POSITION
EXHAUST
Image may not reflect actual tool
4
Rev. 9/11