Grease Replenishment/Exchange For U-Axis Speed Reducer; Grease Replenishment (Refer To "Fig. 26 U-Axis Speed Reducer Diagram".); (Refer To "Fig. 26 U-Axis Speed Reducer Diagram".) - YASKAWA MOTOMAN-HP20 Instructions Manual

9.2.4
Grease Replenishment/Exchange for U-axis Speed
Reducer
U-axis
speed
reducer
Grease inlet
(Hexagon socket head
plug PT1/8)
NOTE
The exhaust port and the grease inlet are inverted in case of ceiling installation.
 Grease Replenishment

(Refer to "Fig. 26 U-axis Speed Reducer Diagram".)

Replenish the grease in accordance with the following procedure:
1. Posture the U-arm as shown in "Fig. 26 U-axis Speed Reducer Diagram".
2. Remove the screw and the plug from grease exhaust port and grease inlet respec-
tively.
NOTE If grease is injected with the screw on, the grease will go inside the motor and may damage
it. Never fail to remove the screw before the grease injection.
3. Install the grease zerk A-MT6X1 on the grease inlet. (The grease zerk A-MT6X1 is
delivered with the manipulator.)
4. Inject the grease into the grease inlet using a grease gun.
5. Move the U-axis for a few minutes to discharge the excess grease.
6. Remove the grease zerk and reinstall the hexagon socket head plug on the grease
inlet. Tighten the plug with a tightening torque of 5 N·m (0.51 kgf·m). Apply Three
Bond 1206C on the thread part of the plug.
7. Wipe the grease exhaust port with a cloth and reinstall the hexagon socket head cap
screw. Tighten the screw with a tightening torque of 5 N·m (0.51 kgf·m). Apply Three
Bond 1206C on the thread part of the screw.
Grease exhaust port
(Hexagon socket head
cap screw M6)
Fig. 26 U-axis Speed Reducer Diagram
Grease type: Molywhite RE No.00
Amount of grease: 30 cc
(60 cc for the 1st supply)
9-11
9.2 Notes on Maintenance Procedures
U-arm