The ballscrews on all 3 axes will require occasional grease to maintain smooth operation. The official product to be used is "Sinopec Multipurpose Lithium Grease (Natural) NLGI 1", with the following information from the MSDS:
A similar lithium grease can be used as a replacement. Apply it to the threaded rod evenly and move the ballnut along the raceway several times. Do not apply too much grease.
Lubricating the X Axis
- Move the bezel covering the x-axis out of the way to access the x-axis ball bearing and engage the E-Stop.
- Slide x axis all the way to the left side.
- Vacuum up any chips that had gotten caught under the bezel covers
- Remove cap from pre-loaded green grease syringe.
- Apply approx 0.1 mL of grease into 2 of the ball screw grooves as close to the center of the axis as possible.
- Slide the bed over to the right side and apply grease to the right side of the ball bearing.
- Apply a drop of oil to each of the thrust bearings. Note that newer machines will have 2 set screws plugging up holes over the thrust bearings for easier access. Remove the set screws and inject approximately 0.1 mL of oil into each.
- Apply a bit of oil to the linear rods
- Secure the bezel, disengage the E-stop, and home the machine. Jog the machine along the x-axis several times to make sure that the grease and oil are applied across the entire axis. [You can also run the SPEED macro]
Lubricating the Y-Axis
- Remove the bed
- Remove the Y shroud
- Apply 0.1mL of grease into the ball screw grooves as close to the center as possible on either side of the bearing.
- Apply a drop of oil to the thrust bearings
- Apply a drop of oil to both sides of the linear bearings
- Move the y axis back and forth
Lubricating the Z-Axis
- Move z axis to the top
- Remove one side of the bezel
- Apply grease to the grooves of the ball screw right below the turret
- Apply approximately 0.1 mL of oil to the thrust bearings
- Reapply bezel and move the turret down to about half way
- Remove the top bezel and apply grease just above the turret
- Run the Z-axis up and down to ensure that the grease is applied across the entire rod.
Lubricating the Turret Latch
- Remove turret cover
- Hit the turret unlatch button
- Extrude a small amount of grease from the syringe
- Apply it to the timing plate of the latch
- Apply a drop of oil to the small hole on top of the turret latch