7
REV 4/22
GB752SR
-
8 INSTALLATION TOOL
PRINCIPLE OF OPERATION
When the 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 assembly, causing the piston to move to the rear of the head cylinder assembly. 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
lever 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 head cylinder assembly, causing the piston to move to
the forward position.
Image may not reflect actual tool
Pressurized Oil
Unpressurized Oil
Pressurized Air
Unpressurized Air
Air Piston
moves up
Air Piston
moves down
Piston Rod Assembly
moves up
Piston Rod Assembly
moves down
Air exhaust
Air exhaust when lever
assembly depressed
Air exhaust
PULL Cycle
RETURN Cycle
