9 Maintenance and Inspection
9.3 Notes on Grease Replenishment/Exchange Procedures
9-12
171469-1CD
HW0485750
MH5
9.3.4 Grease Replenishment for U-Axis Speed Reducer
Fig. 9-7: U-Axis Speed Reducer Diagram
9.3.4.1 Grease
Replenishment
Fig. 9-7 “U-Axis Speed Reducer Diagram”
.)
1. Remove the cover to unscrew hexagon socket head cap screw M6
from the grease inlet and the plug M5 from the exhaust port.
2. Install the grease zerk A-MT6 x 1 to the grease inlet. (The grease zerk
is packed with the manipulator on the shipment.)
3. Inject grease into the grease inlet using a grease gun.
– Grease type:
Harmonic Grease SK-1A
– Amount of grease:
20cc
4. Wipe the discharged grease with a cloth. Remove the grease zerk
from the grease inlet and reinstall the screw M6, and the plug M5 to
the exhaust port before reinstalling the cover.
Apply Three Bond 1206C on the thread part of the screw/plug.
(Hexagon socket head cap screw M6)
Grease inlet
Exhaust port
(Plug M5)
U-axis speed reducer
Cover
U-axis motor
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.
Do not install a joint, a hose, etc. to the grease exhaust port.
Failure to observe this instruction may result in damage to
the motor due to coming off of an oil seal.
NOTE
The exhaust port is used for air exhaust, and the grease is
not exhausted from the exhaust port. Do not inject
excessive grease through the grease inlet.
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