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HOW TO USE THE GB705NAST
WARNING:
OPERATOR
MUST
READ AND UNDERSTAND ALL WARNINGS AND CAUTIONS.
WARNING:
IT IS REQUIRED THAT EYE PROTECTION AND HEARING PROTECTION BE WORN DURING
OPERATION.
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, 5,700 psi (393.0 bar) for the pull and 2,400 psi (165.5 bar) for the
return.
2. Connect hydraulic hoses and electric cord 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.
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.
Severe personal injury may result.
PRINCIPLE OF OPERATION
WARNING
:
OPERATOR
MUST
READ AND UNDERSTAND ALL WARNINGS AND CAUTIONS.
WARNING:
IT IS REQUIRED THAT EYE PROTECTION AND HEARING PROTECTION BE
WORN DURING OPERATION.
WARNING:
DO NOT PULL RIVET IN THE AIR. PERSONAL INJURY FROM FASTENER EJECTING MAY OCCUR
.
CAUTION:
DO NOT USE BEYOND THE DESIGN INTENT.
WARNING:
DO NOT
BEND TOOL IF STUCK ON FASTENER.
CAUTION:
BE SURE THERE IS ADEQUATE CLEARANCE FOR TOOL AND OPERATOR'S HANDS
BEFORE PROCEEDING AS SEVERE PERSONAL INJURY MAY RESULT.
WARNING:
DO NOT PULL PIN UNLESS INSERTED IN SHEET. SEVERE PERSONAL INJURY MAY
RESULT.
CAUTION:
HYDRAULIC POWER UNITS THAT ARE NOT EQUIPPED WITH RELIEF VALVES AND THAT
DELIVER HIGH PRESSURE FOR THE "PULL" AND "RETURN" ARE NOT RECOMMENDED
AND MAY BE DANGEROUS.
WARNING:
BE SURE POWERUNIT IS DISCONNECTED BEFORE CLEANING, OR WHEN REPLACING
WORN OR DAMAGED COMPONENTS. SEVERE PERSONAL INJURY MAY OCCUR IF
POWER SOURCE IS NOT DISCONNECTED.
When the tool is connected to the power supply, depressing the actuator will simultaneously start the pump
and shift the directional valve. Hydraulic oil is then forced up and into the front side of the cylinder head,
causing the piston to move to the rear position. The internal components of the attached nose assembly are
also moving with the piston to start the fastener installation. As the piston nears the end of its stroke, it ex-
poses flats on the unloading valve. These flats relieve the oil pressure and allows the fluid to return to the
reservoir tank. When the fastener installation is completed, the actuator is released causing the directional
valve to shift back to its original position. Hydraulic fluid is then directed to the rear of the piston moving it
and the internal components of the nose assembly forward to their original position.
