Grease Exchange - YASKAWA MOTOMAN-VA1400 Instructions Manual

VA1400

9.3.4.2 Grease Exchange

9 Maintenance and Inspection
9.3 Notes on Grease Replenishment/Exchange Procedures
8. Wipe the discharged grease with a cloth, and reinstall the screw.
Before installing the screw, apply Three Bond 1206C on the thread
part of the screw, then tighten the screw with a tightening torque of
10 N•m (1.0 kgf•m).
(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 cap screw M6 from the grease
exhaust port.
3. Remove the hexagon socket head cap plug PT1/8 from the grease
inlet.
• 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.
NOTE
• 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.
4. Install a 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:
– Amount of grease:
– Air supply pressure of grease pump:
– Grease injection rate:
6. The grease exchange is complete when new grease appears in the
grease exhaust port. (The new grease can be distinguished from the
old grease by color.)
7. Move the U-axis for a few minutes to discharge excess grease.
8. Remove the grease zerk from the grease inlet, and reinstall the plug.
Before installing the plug, apply Three Bond 1206C on the thread part
of the plug, then tighten the plug with a tightening torque of 4.9 N•m
(0.5 kgf•m).
9. Wipe the discharged grease with a cloth, and reinstall the screw to the
grease exhaust port. Before installing the plug, apply Three Bond
1206C on the thread part of the screw, then tighten the screw with a
tightening torque of 10 N•m (1.0 kgf•m).
9-15
155556-1CD
VIGO Grease RE No. 0
approx. 250 cc
0.3 MPa or less
8 g/s or less
HW0484963
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