Prusa Research Original Prusa MINI, Руководство пользователя

Страница: 17 / 116

2. YZ - axis assembly
Original Prusa MINI+ kit assembly 17
STEP 5 Lubricating the bearing
Turn the tube and applicator clockwise until you feel a slight resistance. This
means that the holes in the applicator are aligned with the ball rows.
Gently press the tube to push the lubricant into the ball rows of the bearing.
Look at the front of the bearing. When the applicator pushes the lubricant out
(around the black gasket), stop pressing the tube. Hold the bearing with the other
hand during the lubricating.
The grease must be spread evenly over all four ball rows inside the bearing. There
must not be too much grease, or too little. Take a closer look at the last picture.
Wipe off excess grease on the outside of the bearing with a paper towel.
Use this procedure for all three bearings.
Do not remove the applicator from the tube. Keep it prepared for the next chapter.
The bearings may leave excess grease on the smooth rods after their installation.
Wipe off any residue with a paper towel.
STEP 6 Correct bearing orientation
The correct orientation : When placing bearings onto the Y-carriage, make sure
that they are oriented as shown in both pictures. The tracks (rows of balls) have to
be on the sides.
The incorrect orientation: Avoid placing the bearing like in the last picture! This
orientation with a single row of balls in the center of the hole will later increase the
wear of the smooth rod , possibly creating a groove in it.