9 Maintenance and Inspection
9.3 Notes on Grease Replenishment/Exchange Procedures
9-12
155976-1CD
HW0485249
ES165D
9.3.3 Grease Replenishment/Exchange for U-Axis Speed Reducer
Fig. 9-6: U-Axis Speed Reducer Diagram
9.3.3.1 Grease
Replenishment
(Refer to
Fig. 9-6 “U-Axis Speed Reducer Diagram”
.)
1. Make the U-arm horizontal to the ground.
2. Remove the hexagon socket head plug PT1/8 from grease exhaust
port.
3. Install a grease zerk A-PT1/8 to the grease inlet. (The grease zerk is
delivered with the manipulator.)
4. Inject grease through the grease inlet using a grease gun.
– Grease type:
Molywhite RE No. 00
– Amount of grease:
280 cc
(560 cc for 1st supply)
– Air supply pressure of grease pump: 0.3 MPa or less
– Grease injection rate:
8 g/s or less
5. Move the U-axis for a few minutes to discharge excess grease.
6. Wipe the discharged grease with a cloth, and reinstall the plug. Before
installing the plug, apply Three Bond 1206C on the thread part of the
plug, then tighten the plug with a tightening torque of 5 N•m
(0.51 kgf•m).
Hexagon socket head plug A-PT1/8
Grease exhaust port
Grease inlet
Hexagon socket head plug PT1/8
NOTE
If grease is injected with the plug on, the grease will leak
inside the motor and may cause a damage. Make sure to
remove the plug before the grease injection.
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