YASKAWA MOTOMAN MPL80 II, Supplementary Instructions Manual

13

155492-1CD

HW1480185

DX100 Controller 
Maintenance

     
9.3  Grease Replenishment/Exchange (Page 9-8 to 9-17)

9.3.4  Grease Replenishment/Exchange for U-Axis Speed Reducer

Fig. 9-6: U-Arm Posture

Fig. 9-7: U-Axis Speed Reducer Diagram

9.3.4.2 Grease 

Exchange

(Refer to 

Fig. 9-7 “U-Axis Speed Reducer Diagram”

.)

1. Make the U-arm horizontal to the ground.

2. Remove the hexagon socket head plug PT3/8 from the grease 

exhaust port.

3. Remove the hexagon socket head plug PT1/8 from the grease inlet.

4. Install the grease zerk PT1/8 to the grease inlet.  (The grease zerk is 

delivered with the manipulator.)

5. Inject grease through the grease inlet using a grease gun.

– Grease type: 

Cassida Grease EPS 00

– Amount of grease: 

approx.700 cc

– Air supply pressure of grease pump:  0.3 MPa or less

– Grease injection rate: 

8 g/s or less

U-arm

U-axis speed reducer

Grease inlet

Hexagon socket head 
plug PT1/8

Grease exhaust port

Hexagon socket head 
plug PT3/8

NOTE

• If grease is injected with the bolt on, grease will leak inside 

the motor and may cause a damage.  Make sure to 
remove the bolt 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.