Maintenance - Lincoln Electric POWER WAVE IM986 Operator's Manual

D-1
WARNING
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts or
electrode with skin or wet clothing.
• Insulate yourself from work and
ground
• Always wear dry insulating gloves.
------------------------------------------------------------------------
EXPLODING PARTS can cause injury.
• Failed parts can explode or cause other
parts to explode when power is applied.
• Always wear a face shield and long
sleeves when servicing.
------------------------------------------------------------------------
See additional warning information
throughout this Operatorʼs Manual
-----------------------------------------------------------
Routine maintenance consists of periodically blowing
out the machine, using a low pressure airstream, to
remove accumulated dust and dirt from the intake and
outlet louvers, and the cooling channels in the
machine.
Calibration of the POWER WAVE® i400 is critical to its
operation. Generally speaking the calibration will not
need adjustment. However, neglected or improperly
calibrated machines may not yield satisfactory weld
performance. To ensure optimal performance, the cali-
bration of output Voltage and Current should be
checked yearly.
Output Voltage and Current are calibrated at the facto-
ry. Generally speaking the machine calibration will not
need adjustment. However, if the weld performance
changes, or the yearly calibration check reveals a
problem, use the calibration section of the Diagnostics
Utility to make the appropriate adjustments.
The calibration procedure itself requires the use of a
grid, and certified actual meters for voltage and cur-
rent. The accuracy of the calibration will be directly
affected by the accuracy of the measuring equipment
you use. The Diagnostics Utility includes detailed
instructions, and is available on the POWER WAVE®
Utilities and Service Navigator CDʼs or available at
www.powerwavesoftware.com..

MAINTENANCE

CHASSIS REMOVAL PROCEDURE
------------------------------------------------------------------------
(See Figure D.1)
1. Turn off input power to the power source and any
other equipment connected to the welding system
at the disconnect switch or fuse box before working
on the equipment.
2. Remove the weld cables from the output studs, and
disconnect all control cables including the Ethernet
connection from the control panel.
3. Remove the screws securing the chassis to the
cabinet as listed below:
• (6) 10-24 screws securing the reconnect access
panel on the front of the machine (ON/OFF switch
must be in the OFF position for removal).
• (2) 1/4-20 screws on either side of the control
panel located on the right case side.
• (2) 1/4-20 screws just below the output studs
located on the right case side.
• (12) 1/4-20 screws from the left case side.
CHASSIS CONNECTION
(SEE WIRING DIAGRAM)
POWER WAVE® i400
WARNING
ELECTRIC SHOCK can kill.
• Disconnect input power before
servicing.
• Do not operate with covers removed.
• Do not touch electrically live parts.
• Only qualified persons should install,
use or service this equipment.
FIGURE D.1
D-1