9-13
159328-1CD
HW1480497
MS80W Manipulator
9 Maintenance and Inspection
9.3 Notes on Grease Replenishment/Exchange Procedures
6. Wipe the discharged grease with a cloth and reinstall the plug PT3/8
on the grease exhaust port. Apply Three Bond 1206C to the thread
part of the plug, and tighten the plug with a tightening torque of 23 N
•m
(2.3 kgf
•m).
7. Remove the grease zerk from the grease inlet and reinstall the plug
PT1/8. Apply Three Bond 1206C to the thread part of the plug, and
tighten the plug with a tightening torque of 4.9 N
•m (0.5 kgf•m).
9.3.3.2 Grease Exchange (Refer to Fig. 9-6 U-Axis Speed Reducer on
page 9-12.)
1. Tilt the U-arm horizontal to the ground. (Refer to Fig 9-6.)
(The L-arm is in the vertical posture.)
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
and install the grease zerk PT1/8. (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: 700 cc
– Air supply pressure of grease pump: 0.3 MPa or less
– Grease injection rate: 8 g/s or less
5. The grease exchange is completed when new grease appears in the
grease exhaust port. The new grease can be distinguished from the
old grease by color.
6. Move the U-axis for a few minutes to discharge excess grease.
7. Wipe the discharged grease with a cloth and reinstall the plug PT3/8
on the grease exhaust port. Apply Three Bond 1206C to the thread
part of the plug, and tighten the plug with a tightening torque of 23 N
•m
(2.3 kgf
•m).
8. Remove the grease zerk from the grease inlet and reinstall the plug
PT1/8. Apply Three Bond 1206C to the thread part of the plug, and
tighten the plug with a tightening torque of 4.9 N
•m (0.5 kgf•m).
• 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.
If the plug is installed while the grease is being exhausted,
the grease will leak inside the motor and may cause a
damage. Ensure that the grease has been completely
exhausted before installing the plug.
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