4
REV . 10/14
S/N: 1118 AND ABOVE
PLEASE CONTACT GAGE BILT FOR ALL OTHER SERIAL NUMBERS.
AIR
PRESSURE
AIR
PISTON
AIR
PRESSURE
OIL
PRESSURE
OIL
PRESSURE
FORWARD POSITION
OIL
PRESSURE
REAR POSITION
OIL
PRESSURE
AIR
PRESSURE
EXHAUST
AIR
PISTON
VALVE
SPOOL
PISTON
ROD
CYLINDER
HEAD
HEAD
PISTON
AIR
PRESSURE
AIR
PRESSURE
PRINCIPLE OF OPERATION
When the actuator lever assy is depressed, the pressurized air inside of the tool is released allowing spring pressure to move the
valve spool assy causing the air to be redirected. The air is directed to the top side of the air piston assy, moving it in a downward
direction. The air below the air piston assy is then directed through the valve sleeve and exhausted out of the bottom of the tool.
Simultaneously, the piston rod assy connected to the air piston assy is also moving down, forcing hydraulic oil up and into the front
side of the head cylinder assy, causing the piston to move to the rear of the head cylinder assy. The oil from the rear of the head
cylinder assy is directed to the top of the piston rod assy inside the power cylinder. The internal components of the attached nose
assy are also moving with the piston to start the fastener installation. When the fastener installation is completed, the actuator lever
assy is released. Air pressure is then built up inside of the handle assy causing the valve spool assy to return to it’s original position
and reversing the sequence.
