7
Rev. 1/23
GB784SH INSTALLATION TOOL S/N: 1008 AND ABOVE
PLEASE CONTACT GAGE BILT FOR ALL OTHER SERIAL NUMBERS.
PRINCIPLE OF OPERATION
When the actuator lever assembly is depressed, the pressurized air inside of the tool is released allowing spring pressure to move the
valve spool assembly causing the air to be redirected. The air is directed to the top of the air piston assembly, moving it in a downward
direction. The air below the air piston assembly is then directed through the valve sleeve and exhausted out of the bottom of the tool.
Simultaneously, the piston rod assembly connected to the air piston assembly is also moving down, forcing hydraulic oil up and into the
front side of the head cylinder, causing the piston to move to the rear of the head 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
actuator lever assembly is released. Air pressure is then built up inside of the handle assembly causing the valve spool assembly to
return to its original position and reversing the sequence redirecting the oil to the rear of the head cylinder, causing the piston to
move to the forward position.
PULL Cycle
RETURN Cycle
Piston Travel
Piston Travel
Images may not reflect actual tool.
Pressurized Oil
Unpressurized Oil
Pressurized Air
Unpressurized Air
Air exhaust
Air exhaust
Air exhaust
