Routine And Periodic Maintenance; Gas Diffuser Replacement - Lincoln Electric Magnum PRO100SG Manual Del Operador

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MAGNUM PRO 100SG
MAINTENANCE
WARNING
ELECTRIC SHOCK can kill.
Turn the input power OFF at the welding
power source before installation or
changing drive rolls and/or guides.
Do not touch electrically live parts.
When inching with the gun trigger, electrode and drive
mechanism are "hot" to work and ground and could
remain energized several seconds after the gun trigger
is released.
Do not operate with covers, panels or guards removed
or open.
Only qualified personnel should perform maintenance
work.

ROUTINE aND PERIODIC MaINTENaNCE

Check weld cables.
Clean and tighten all welding cable connections.
Recommended Tools
• #2 Phillips screw-driver
• Slotted screw-driver
• 5/16 inch nut driver
• Torque Wrench
• Adjustable-jaw pliers
• 7/16 inch open-end wrench (gas diffuser)
• 9/16 inch open-end wrench (gun tube nut)
• Welding pliers (optional)
• Wire cutter
• Wire stripper
• Needle nose pliers
• Terminal crimping tool
• Flashlight
• Hand-held electrical meter *
• 3.0 mm metric allen wrench (drive roll screw)
• Tape measure or 6-inch scale
• Tachometer (optional)
*Note: Two meters are used for simultaneously measuring drive motor's volt-
age and current.
Cleaning and Inspections
• Vacuum out any aluminum shavings that may have
accumulated inside of the gun. ( See Correcting Wire Shaving
Issues in this section).
• Wipe off dust and debris.
• Check that the gun tube and its lock nut are properly
tightened to the cable connector.
• Replace any warning or product identification decals that have
become illegible.
P6 Connector Pin-Out
Pin No.
Function
1
TRIGGER
2
TRIGGER
3
+ MOTOR
4
- MOTOR
Master Key
1
2
3
4

GAS DIFFUSER REPLACEMENT

This part may need to be replaced if it has accumulated excessive
spatter and cannot be cleaned:
1. Remove gas cone and contact tip.
2. Carefully grasp gun tube with pliers to prevent accidentally
loosening gun tube. Gas diffuser has right-hand threads.
FIGURE D.1
Loosen gas diffuser with wrench. (See Figure D.1)
3. Install gas diffuser and thread into place in gun tube. Tighten
diffuser to 41 to 47 in.-lbs. with Torque Wrench.
D-1
MAINTENANCE
TABLE D.1
Gun Cable Lead Color
WHITE
WHITE
RED
BLACK

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K4360-1

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