8-3. Maintenance Procedures for Stud Gun
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When is Maintenance Required?
Maintenance requirements will vary with environment and usage. Dirty work areas or high volume stud welding will require more frequent main- tenance.
There are three primary reasons for maintenance:
•Dirt - Dirt can enter the lifting mechanism and cause erratic lift and plunge operations. Typically , cleaning is all that is required.
•Wear - Components do wear out over time. Typically, items such as plastic bearings or cables wear out and need to be replaced.
•Improper Use - Components can arc out by inadvertently placing them against grounded materials during a weld sequence. Also, by us- ing the gun as a hammer to test welds will damage parts and require maintenance.
Maintenance Steps
Proper Maintenance Procedures:
•Disassemble the gun.
•Inspect all parts for wear or damage.
•Replace worn or damaged components.
•Clean all components.
•Reassemble components.
•Adjust settings and test.
Disassembly / Assembly Procedures:
YTo prevent accidental activation disconnect the gun from the power source before adjusting or servicing the gun.
.Remove all accessories from gun before servicing.
.Items referenced ( ) will correspond with list items.
1Legs: Loosen set screws (23) and pull legs (not shown) straight out. Inspect legs for damage and straightness, replace if necessary.
2Chuck (Not Shown): Insert chuck key into chuck adapter and turn key 180 degrees. Inspect chuck for damage. If taper on chuck appear worn out replace chuck.
3Dust Bellows (3): Remove dust bellows by sliding over end of chuck adapter. The bellows prevent contaminates from entering the internal mechanisms of the gun. If bellows has holes or is torn, replace.
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