Grease Exchange - YASKAWA MOTOMAN-HP20D Maintenance Manual

159281-1CD
HP20D

4.4.2 Grease Exchange

4 Grease Replenishment and Exchange
4.4 Grease Replenishment and Exchange for U-Axis Speed Reducer
(Refer to Fig. 4-3 "U-Axis Speed Reducer".)
1. Make the U-arm horizontal to the ground.
2. Remove the hexagon socket head plug from the grease inlet and the
hexagon socket head cap screw from the grease exhaust port.
If grease is injected with the plug on, grease will leak inside
NOTE
the motor and may cause a damage. Make sure to remove
the plug before grease injection.
3. Install the grease zerk A-MT6 x 1 to the grease inlet.
(The grease zerk is delivered with the manipulator.)
4. Inject grease through the grease inlet using a grease gun.
– Grease type:
– Amount of grease:
– Air supply pressure of grease pump:
– Grease injection rate:
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 U-axis for a few minutes to discharge excess grease.
7. Remove the grease zerk from the grease inlet and reinstall the plug.
Apply ThreeBond 1206C to the thread part of the plug, and tighten the
plug with a tightening torque of 5 N•m (0.51 kgf•m).
8. Wipe the discharged grease with a cloth, and reinstall the screw on the
grease exhaust port. Apply ThreeBond 1206C to the thread part of the
screw, and tighten the screw with a tightening torque of 5 N•m
(0.51 kgf•m).
4-7
VIGO Grease RE No.0
approx. 300 cc
0.3 MPa or less
8 g/s or less
HW1480357
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