Lincoln Electric IM713 POWER WAVE 655R - Manual (Page 25)

D-1 MAINTENANCE D-1
POWER WAVE ® 655/R
SAFETY PRECAUTIONS
ELECTRIC SHOCK can kill.
• Only Qualified personnel should
perform this maintenance.
• Turn the input power OFF at the
disconnect switch or fuse box
before working on this equipment.
• Do not touch electrically hot parts.
ROUTINE MAINTENANCE
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 cool-
ing channels in the machine.
PERIODIC MAINTENANCE
Calibration of the Power Wave ® 655/R is critical to
its operation. Generally speaking the calibration
will not need adjustment. However, neglected or
improperly calibrated machines may not yield sat-
isfactory weld performance. To ensure optimal
performance, the calibration of output Voltage
and Current should be checked yearly.
CALIBRATION SPECIFICATION
Output Voltage and Current are calibrated at the
factory. Generally speaking the machine calibration
will not need adjustment. However, if the weld per-
formance changes, or the yearly calibration check
reveals a problem, contact the Lincoln Electric
Company for the calibration software utility.
The calibration procedure itself requires the use
of a grid, and certified actual meters for voltage
and current. The accuracy of the calibration will
be directly affected by the accuracy of the mea-
suring equipment you use. Detailed instructions
are available with the utility.
WARNING