4
9/11 REV. 7/13
PRINCIPLE OF OPERATION
When the tool is connected to a powerunit, operation is controlled by a actuator or switch in the handle. The
GB2480A incorporates an air actuator to send a signal; the GB2480 an electric switch. When the button is
depressed, a directional valve in the powerunit directs fluid to the front side of the piston forcing it and the
nose assembly collet rearward. This action causes the jaws to clamp on the fastener pintail and pull the
sheets together. The anvil is forced over the collar, swaging it into the locking grooves of the fastener. Fur-
ther force breaks the pintail off, approximately flush with the collar.
When the piston nears the end of its stroke it exposes flats on the back of the unloading valve. These flats
"dump" fluid back to the powerunit tank. When the button is released the directional valve reverses fluid
flow to the back of the piston and pushes the nose assembly off of the swaged fastener. The spent pintail is
released and drops out the back of the tool.
HOW TO USE THE GB2480
WARNING:
OPERATOR
MUST
READ AND UNDERSTAND ALL WARNINGS AND CAUTIONS.
WARNING:
IT IS REQUIRED THAT EYE PROTECTION AND HEARING PROTECTION BE WORN DURING OPERA-
TION.
WARNING:
DO NOT PULL RIVET IN THE AIR. PERSONAL INJURY FROM FASTENER EJECTING MAY OCCUR.
CAUTION:
DO NOT USE BEYOND THE DESIGN INTENT.
#1. Set power supply to the recommended pressure, 8,400 psi (579.1 bar) for the pull and 3,200 psi (220.6 bar) for the
return.
#2. Connect hydraulic hoses and actuator line to power supply.
WARNING:
ENSURE HYDRAULIC HOSES ARE SECURELY CONNECTED TO AVOID POSSIBLE HOSE
WHIPPING.
#3. To ensure piston is in the full forward position, Cycle tool.
#4. Disconnect from power supply.
#5. Select proper Nose Assembly
#6. Screw collet assembly onto piston.
#7. Slide anvil over collet. Slide retaining nut stop 240102 over anvil, secure nose using retaining nut 211102
(See proper data sheet for further instructions.)
#8. Re-connect to power supply.
WARNING:
BE SURE THERE IS ADEQUATE CLEARANCE FOR TOOL AND OPERATOR’S HANDS BEFORE
PROCEEDING. KEEP FINGERS CLEAR OF ANY MOVING PARTS. KEEP FINGERS CLEAR FROM
FASTENERS AND INSTALLED MATERIALS. SERVIER PERSONAL INJURY MAY RESULT.
WARNING:
DO NOT PULL FASTENER UNLESS IT IS PLACED IN AN ASSEMBLY, PIN WILL EJECT WHEN PIN
TAIL BREAKS OFF. SEVERE PERSONAL INURY MAY RESULT.
