Foredom Series H - Manual (Page 9)

8
Routine Cleaning and Lubrication of Flexible Shaft
The shaft should be checked, wiped clean, and relubricated with grease every 50
hours of use. With every 200 hours of use, the shaft should be thoroughly cleaned
with solvent and lubricated. Follow steps 1 and 2 at left and then wipe exposed
shaft with a cloth to remove old grease. Remove inner shaft and soak in a sol-
vent if necessary, to remove all dirt and grease. Use Foredom flex shaft grease
(p/n 10006) or high quality white lubricating grease according to directions below.
Then follow steps 4 through 7 (opposite page) for correct re-assembly.
Lubricating the Inner Shaft
1.Remove handpiece (see page 5).
2. Slide sheath out of connector and remove it
from shaft.
3.Apply a very light coating of lubrication to shaft
starting at the top and working downward to about
one inch from the end. Apply grease with your fin-
ger tip or small brush. Don’t overdo, apply a light film of grease. Once the machine is
running, the shaft itself will spread the grease. If too much grease is applied, the
excess will work its way into the handpiece and eventually seep out between the
handpiece and sheath. For this reason, apply a bit less near the handpiece end of the
shaft.
Never operate the motor with the outer sheath removed from the
flexible shaft.
4.Replace sheath. Retighten the set screw in motor connector.
5.Clean exterior of sheath by wiping with a cloth.
6.Hang and run the motor for about 4 to 5 minutes before attaching the handpiece to
allow enough time for the grease to warm up, spread and drain off. Wipe off any
excess grease at tip end of sheath.
7.Re-attach handpiece.
Replacement of
Motor Brushes
The motor brushes should be
checked for wear periodically. When
new, they are approximately 3/4
″ long. Replace them
when they have worn to 1/4
″.
To remove brushes, disconnect motor power cord and
unscrew the brush caps. Be sure the curvature or contour
of the motor brush tip matches that of the outside of the
housing curve.
New Motor Brush
Motor that needs
Brush replacement