Tip Changing Procedure (Teaching)
Details Torque Chart Points of Attention| Frequency: | As Needed |
|---|---|
| Execution Time: | 5 Minutes |
| Machine Status: | Static |
| Activity Type: | Mechanical |
| Bolt Size | N.M.S.S. "70" | Socket/Hex Class 12.9 | ||
|---|---|---|---|---|
| M12 - 1.75 | 117 Nm | 86 ft/lbs | 135 Nm | 100 ft/lbs |
| M10 - 1.5 | 50 Nm | 37 ft/lbs | 77 Nm | 57 ft/lbs |
| M8 - 1.25 | 30 Nm | 22 ft/lbs | 39 Nm | 29 ft/lbs |
| M6 - 1.0 | 14 Nm | 10 ft/lbs | 16 Nm | 12 ft/lbs |
| Fulcrum Nut | not applicable | 30 Nm | 22 ft/lbs | |
| Soft Joint Breakaway Specifications (Shunt Lug) | ||||
| M8 - 1.25 | 18 Nm | 13 ft/lbs | not applicable | |
- Torque Wrench for Slotted Nut
- Pin Spanner Wrench
- Slotted Nut Wrench
Make sure you are wearing proper PPE before beginning this maintenance activity. Refer to plant and department specific PPE requirements.
Lockout all stored energy sources in the work area using proper procedure. Review lockout placard and follow plant lockout procedures.
If you are unclear how to preform this task, ask your supervisor.
While performing this PM, if you discover any problems that are outside the scope of the work covered by this PM, generate a work ticket to initiate the necessary repairs AND report to your supervisor.
If this PM is not accurate please document any changes or additions that should be made and give them to your supervisor.
Startup Preparation
Clockwise Rotation - Clockwise viewed from above the main body.
Counterclockwise Rotation - Counterclockwise viewed from above the main body.
Tip Removing Process (Lower) (1 of 2)
- The Tip Remaining (Proximity Sensor) ON Confirm.
When the Proximity Sensor is OFF, stop operation due to the absence of the cap tips.
- [Counterclockwise Rotation] ON
Output Rotation speed: 30 rpm - After more than 2 seconds [Counterclockwise Rotation] OFF.
Hold coolant water in a weld gun.
- Enter of lower tip (To changing position)
- [Counterclockwise Rotation] ON
Output Rotation Speed: 30 rpm
Tip Removing Process (Lower) (2 of 2)
- After about 0.5 seconds, move the gun 3mm below.
Set in a speed of about 3mm/sec.
- Move the gun 10mm below.
Set in a speed of under 20mm/sec.
(Stop operation when unusual factor is found)
- Move the gun down below (Escape).
- [Clockwise rotation] OFF
- Set the gun in front of the device.
- [Counterclockwise Rotation] ON
Output Rotation Speed: 30 rpm - After more than 2 seconds [Counterclockwise Rotation] OFF
Tip Setting Process (Lower)
- Move the gun in front of the lower tip setting position.
When removing tips, please make sure the shank is inserted vertically and horizontally. Inserting with tilt may cause the changer to not remove the tip properly.
- Set the NEW cap by pressuring (Recommended 1000N).
Make sure the cap lips are set properly by using simple gun search.
Tip Removing Process (Upper) (1 of 2)
- [Counterclockwise Rotation] ON
Output Rotation speed: 30 rpm - After more than 2 seconds [Counterclockwise Rotation] OFF.
Hold coolant water in a weld gun.
- Enter of upper tip (To changing position)
- [Clockwise Rotation] ON
Output Rotation Speed: 30 rpm
Tip Removing Process (Upper) (2 of 2)
- After about 0.5 seconds, move the gun 3mm above.
Set in a speed of about 3mm/sec.
- Move the gun 10mm above.
Set in a speed of under 20mm/sec.
(Stop operation when unusual factor is found)
- Move the gun down above (Escape).
- [Clockwise rotation] OFF
- Set the gun in front of the device.
- [Counterclockwise Rotation] ON
Output Rotation Speed: 30 rpm - After more than 2 seconds [Counterclockwise Rotation] OFF
Tip Setting Process (Upper)
- Move the gun in front of the upper tip setting position.
When removing tips, please make sure the shank is inserted vertically and horizontally. Inserting with tilt may cause the changer to not remove the tip properly.
- Set the NEW cap by pressuring (Recommended 1000N).
Make sure the cap lips are set properly by using simple gun search.