Lincoln Electric SA-400I, Руководство оператора

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D-2
MAINTENANCE SA-400I
®
Replace brushes when they wear within 1/4” of the pigtail. A
complete set of replacement brushes should be kept on hand.
Lincoln brushes have a curved face to fit the commutator. Have
an experienced maintenance person seat these brushes by
lightly stoning the commutator as the armature rotates at full
speed until contact is made across the full face of the brushes.
After stoning, blow out the dust with low pressure air.
To seat slip ring brushes, position the brushes in place. Then
slide one end of a piece of fine sandpaper between slip rings and
brushes with the coarse side against the brushes. With slight
additional finger pressure on top of the brushes, pull the
sandpaper around the circumference of the rings - in direction of
rotation only until brushes seat properly. In addition, stone slip
ring with a fine stone. Brushes must be seated 100%.
Arcing or excessive exciter brush wear indicates a possible
misaligned shaft. Have an authorized Field Service Shop check
and realign the shaft.
NAMEPLATES
Whenever routine maintenance is performed on this machine or
at least yearly - inspect all nameplates and labels for legibility.
Replace those which are no longer clear. Refer to the parts list
for the replacement item number.