9.3 Notes on Grease Replenishment/Exchange Procedures
9-10
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5. Move the L-axis for a few minutes to discharge the excess grease.
6. Wipe the discharged grease with a cloth and reinstall the plug PT1/8 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 4.9 N
N
m (0.5 kgf
N
m).
7. Remove the grease zerk from the grease inlet and reinstall the screw M6. Apply Three
Bond 1206C to the thread part of the screw, and tighten the screw with a tightening
torque of 10 N
N
m (1.0 kgf
N
m).
T
Grease Exchange (Refer to "Fig. 23 L-axis Speed Reducer")
1. Posture the L-arm vertical to the ground.
2. Remove the hexagon socket head plug PT1/8 from the grease exhaust port.
3. Remove the hexagon socket head cap screw M6 from the grease inlet and install the
grease zerk A-MT6 x 1. (The grease zerk is delivered with the manipulator.)
4. Inject the grease into the grease inlet using a grease gun.
5. The grease exchange is completed when new grease appears in the exhaust port. The
new grease can be distinguished from the old grease by color.
6. Move the L-axis for a few minutes to discharge excess grease.
7. Wipe the discharged grease with a cloth and reinstall the plug PT1/8 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 4.9 N
N
m (0.5 kgf
N
m).
8. Remove the grease zerk from the grease inlet and reinstall the screw M6. Apply Three
Bond 1206C to the thread part of the screw, and tighten the screw with a tightening
torque of 10 N
N
m (1.0 kgf
N
m).
• 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.
Grease type: VIGO Grease RE No. 0
Amount of grease: approx. 1000 cc
Air supply pressure of grease pump: 0.3 MPa or less
Grease injection rate: 8 g/s or less
NOTE
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