piece of sandpaper on the commutator until all the dark film has been
removed. Then, with the current turned off, clean the slots with a needle point.
Rotate the commutator manually to reach all three slots.
See diagram below:
TO
CLEAN
THE
COMMUTATOR
ON
A
STEAM TYPE LOCOMOTIVE
(Fig.
45)
-
Remove the rear locomotive truck,
fasten the two wires from the transformer to the two
metal truck frames
on
the tender, start locomotive run-
ning, turn it on its back and press a piece of fine sand-
paper
(“00”
or finer) against the commutator. Press
lightly until the whole surface of the commutator is
smooth and bright. Then stop the motor and with a
pointed tool such as a needle, clean out the slots between
he segments of the commutator. I t is essential that the
copper dust from worn brushes or commutator be thor-
oughly
cleaned from the slots between the segments.
MISCELLANEOUS
TIPS
TRACK
LOCKS:
No.
693
Track Locks are packaged with most trains and,
if the track is not mounted permanently, they should be
used to keep the track from loosening
or
separating while train is running.
60
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