Hilti FX 3-A Operating Instructions Manual page 20

3. Screw the new inert-gas can clockwise into the connection and tighten the can hand-tight.
Materials
Inert-gas can FX 3­GC
4. Close the cover.
▶ The action of closing the cover pierces the inert-gas can.
5.4 Installing / changing stud holder
WARNING
Risk of injury by stud holder! The stud holder gets hot in use.
▶ To avoid burns, wait until the stud holder has cooled down.
▶ Wear protective gloves when changing the stud holder.
1. Make sure that the welding machine is switched off. → page 12
2. Twist the shielding ring counter-clockwise by hand and remove it from the hand tool.
3. If a stud holder is installed, use the following tools to unscrew the stud holder counter-clockwise to
remove it from the hand tool:
Materials
S­BT 1⁄4" torque screwdriver - 5 Nm
X­SHT F3 accessory tool for stud change
▶ To avoid damage, insert the accessory tool fully into the stud holder.
▶ To avoid damage, do not use any tool other than the recommended torque screwdriver.
Replace the shielding ring and/or stud holder if worn. → page 14
4. Screw the stud holder you need into the hand tool, tightening the stud holder clockwise to the specified
tightening torque. When the required tightening torque is reached the torque screwdriver disengages
with haptic and acoustic feedback.
Technical data
Tightening torque for stud holder
Materials
S­BT 1⁄4" torque screwdriver - 5 Nm
For more information on the stud holders, consult the operating instructions that accompany the
studs.
5. Set the shielding ring on the bayonet connector on the hand tool and twist it clockwise until it engages.
5.5 Connecting hand tool and ground lead
CAUTION
Risk of damage due to incorrect connecting sequence.
▶ To prevent damage, make the connections in the correct sequence.
1. Make sure that the welding machine is switched off.
2. Connect the current connector of the hand tool to the minus current socket and latch it in position by
turning it clockwise.
3. Connect the control connector of the hand tool to the welding machine and latch it in position by turning
it clockwise.
4. Connect the connector of the ground cable to the plus current socket and latch it in position by turning it
clockwise.
10 English
5
5 Nm
6
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