9 Maintenance and Inspection
9.3 Notes on Grease Replenishment/Exchange Procedures
9-8
158813-1CD
HW1480080
MH80 Manipulator
9.3 Notes on Grease Replenishment/Exchange Procedures
Make sure to follow the instructions listed below at grease replenishment/
exchange. Failure to observe the following notes may result in damage to
motor and speed reducer.
9.3.1 Grease Replenishment/Exchange for S-Axis Speed Reducer
Fig. 9-4: S-Axis Speed Reducer
9.3.1.1 Grease Replenishment
(Refer to Fig. 9-4 “S-Axis Speed Reducer”.)
1. Remove the hexagon socket head plug PT1/8 from the grease
exhaust port.
• If grease is added without removing the plug/screw from
the grease exhaust port, grease will leak inside a motor or
an oil seal of a speed reducer will come off, which may
result in damage to the motor. Make sure to remove the
plug/screw.
• 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.
• Make sure to use a grease pump to inject grease. Set air
supply pressure to the grease pump at 0.3 MPa or less,
and the grease injection rate at 8 g/s or less.
• Make sure to fill hoses, which are joined to the grease
inlet, with grease beforehand to prevent air from intruding
into the speed reducer.
S-axis speed reducer
(Hexagon socket head plug PT1/4)
Grease inlet
(Hexagon socket head plug PT3/8)
Grease exhaust port
AIR
1BC
2BC
AIR
1BC
2BC
• 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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