Principle Of Operation - Gage Bilt GB2620A Instructions Manual

When the tool is connected to a powerunit, operation is controlled by an electric actuator (GB2620) or a piloted air actuator (GB2620A) in
the handle. When the actuator is depressed, a directional valve in the powerunit directs oil to the front side of the piston forcing it and
the nose assembly collet rearward. This action causes the jaws to clamp onto the fastener pintail and pull the sheets together. The
anvil is forced forward, swaging the collar into locking grooves of the fastener. Further force breaks the pintail off, approximately
flush with the collar.
When the actuator is released the directional valve reverses oil flow to the back of the piston and pushes the nose assembly off of
the swaged fastener. The pintail ejector hydraulically pushes the spent pintail out of the nose assembly.
PULL Cycle
Pintail
Ejector
Actuator
PULL Pressure
GB2620 / GB2620A INTALLATION TOOL

PRINCIPLE OF OPERATION

HYDRAULIC DIAGRAM
Relief
Valve
RETURN Pressure
Pressurized Oil
Unpressurized Oil
Images may not reflect actual tool
RETURN Cycle
Pintail
Ejector
Actuator
PULL Pressure
7
Relief
Valve
RETURN Pressure
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