9.2 Notes on Maintenance Procedures
9-9
HW0483547
HW0483547
9.2.4
Grease Replenishment for Speed Reducers of U- and
R-axes
Fig. 24 UR-Axis Speed Reducer Diagram
Grease Replenishment (Refer to " Fig. 24 UR-Axis Speed Reducer
Diagram ".)
1. Uninstall the cover to remove the plug on the Uo/Ro exhaust port.
2. Remove the hexagon socket head cap screw M6
×
6 on the Ui/Ri grease inlet.
3. Install the grease zerk A-MT6
×
1 to the Ui/Ri grease inlet. (The grease zerk A-MT6
×
1 is
delivered with the manipulator.)
4. Inject the grease into the Ui/Ri grease inlet using a grease gun.
5. Remove the grease zerk on the Ui/Ri grease inlet and reinstall the hexagon socket
head cap screw M6
×
6. Tighten the screw to a tightening torque of 6 N·m (0.6 kgf·m).
Apply Three Bond 1206C on the thread part of the screw.
6. Reinstall the plug on the Uo/Ro exhaust port. Apply Three Bond 1206C on the thread
part of the plug.
If grease is injected with the plug on, the grease will go inside the motor and may damage
it. Never fail to remove the plug before the grease injection.
Grease type: Harmonic Grease SK-1A
Amount of grease: 10 cc (Ui)
10 cc (Ri)
The Uo/Ro exhaust port is used for air flow. Do not inject excessive grease into the Ui/Ri
grease inlet.
Ro: Exhaust port
Plug
R-axis speed reducer
Cover
Ri: Grease inlet
Hexagon socket head cap
screw M6
×
6
Cover
Uo: Exhaust port
Plug
Li: Grease inlet
Hexagon socket head
cap screw M6
×
6
U-axis speed reducer
NOTE
NOTE
45/50