7
REV. 5/22
GB734
INSTALLATION TOOL.
Image may not reflect actual tool
PRINCIPLE OF OPERATION
When the air actuator assembly is depressed, the pressurized air inside 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, 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 the 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 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 assembly is released. Air
pressure is then built up inside of the handle causing the valve spool assembly to return to its original position and reversing the
sequence directing air pressure to the rear of the cylinder head, causing the piston to move to the forward position.
RETURN Cycle
Air exhaust
Pressurized Oil
Unpressurized Oil
Pressurized Air
Unpressurized Air
PULL Cycle
Air exhaust
Air Piston
moves
down
Piston Rod
Assembly
moves down
Air
Exhaust
Air Piston
moves up
Piston Rod Assembly
moves up
