Grease Replenishment And Exchange For U-Axis Speed Reducer; Grease Replenishment - YASKAWA MOTOMAN-HP20D Maintenance Manual

HP20D
4.4
Fig. 4-3: U-Axis Speed Reducer
U-axis speed reducer

4.4.1 Grease Replenishment

4 Grease Replenishment and Exchange

4.4 Grease Replenishment and Exchange for U-Axis Speed Reducer

Grease Replenishment and Exchange for U-Axis Speed Reducer
Grease exhaust port
(Hexagon socket head cap screw M6)
Grease inlet
(Hexagon socket head plug PT1/8)
For ceiling mounted manipulators, the exhaust port and the
NOTE
grease inlet are inverted.
(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. Move the U-axis for a few minutes to discharge excess grease.
6. 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).
7. 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).
4-6
159281-1CD
U-arm
VIGO Grease No.0
30 cc
(60 cc for 1st supply)
0.3 MPa or less
8 g/s or less
HW1480357
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