7
REV. 4/22
GB743VT INSTALLATION TOOL
When the air actuator 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 assembly, causing the piston to move to the rear of the head cylinder assembly. The internal components
of the attached nose assembly are 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 head cylinder assembly, causing the piston to move
to the forward position, simultaneously releasing the spent pintail from the nose assembly, allowing it to be vacuumed into the pintail
collection bottle.
Images may not reflect actual tool
PRINCIPLE OF OPERATION
RETURN Cycle
Pressurized Oil
Unpressurized Oil
Pressurized Air
Unpressurized Air
Air exhaust
PULL Cycle
Air exhaust
Air exhaust
Air Piston
moves up
Piston Rod Assembly
moves up
Piston Rod Assembly
moves down
Air Piston
moves down
