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6.7 Lubricating Joint 3
6.7 Lubricating Joint 3
Use LG-2 Grease (Lithium Soap/Synthetic Hydrocarbon), P/N: 90401-04029.
!
1. Turn off main power to the robot.
If an optional SmartController EX is being used, turn off main power to that, too.
2. Remove the outer link cover by removing screws located on the sides and top of the
cover. Carefully remove the cover.
For the IP65 version, refer to Robot Outer Link Cover Removal and Reinstallation
on page 178 for instructions on removing the link cover, and IP65 Bellows
Replacement on page 185 for instructions on removing the bellows.
For the Cleanroom version, refer to Bellows Replacement on page 191 for instruc-
tions on removing the bellows. The outer link cover is standard.
3. Switch on 24 VDC power to the robot.
4. Press the brake button and move Joint 3 to the top of its travel.
Remove any existing grease with a clean, lint-free, soft cloth.
5. Using a syringe, apply a small bead of grease to the Joint 3 ball screw grooves. Apply
grease to the three vertical grooves and the spiral groove (see Chapter 6:
104
CAUTION: PROPERTY DAMAGE RISK
Using improper lubrication products on an eCobra robot may cause damage to
the robot.
NOTE: When the outer link cover is removed, you see the label shown in
Figure 7-4. Do not remove the J3-ENC or J4-ENC encoder cable connectors
from their sockets. If they are removed, the calibration data will be lost
and the robot must be run through a factory recalibration process, which
requires special software and tools.
eCobra User's Guide
14402-000 Rev. F
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