YASKAWA MOTOMAN-MH80, Instructions Manual, Page: 55 / 77

9-13
158813-1CD
HW1480080
MH80 Manipulator
9 Maintenance and Inspection
9.3 Notes on Grease Replenishment/Exchange Procedures
9.3.3 Grease Replenishment/Exchange for U-Axis Speed Reducer
Fig. 9-6: U-Arm Posture in Grease Replenishment/Exchange for U-Axis
Speed Reducer
Fig. 9-7: U-Axis Speed Reducer
9.3.3.1 Grease Replenishment
(Refer to Fig. 9-7 “U-Axis Speed Reducer” .)
1. Tilt the U-arm horizontal to the ground. (Refer to Fig. 9-6 “U-Arm
Posture in Grease Replenishment/Exchange for U-Axis Speed
Reducer”
.)
2. Remove the hexagon socket head plug PT1/8 from the grease
exhaust port.
3. Remove the hexagon socket head plug PT1/8 from the grease inlet
and install the grease zerk PT1/8. (The grease zerk is delivered with
the manipulator.)
U-arm
(Hexagon socket head plug PT1/8)
(Hexagon socket head plug PT3/8)
Grease inlet
Grease exhaust port
U-axis speed reducer
NOTE
• If grease is injected with the plug on, the grease will go
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.
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