Grease Exchange - YASKAWA MOTOMAN-VA1400 Instructions Manual

VA1400

9.3.1.2 Grease Exchange

9 Maintenance and Inspection
9.3 Notes on Grease Replenishment/Exchange Procedures
(Refer to Fig. 9-4 "S-Axis Speed Reducer Diagram".)
1. Remove the hexagon socket head plugs PT1/8 from the grease inlet
and grease exhaust port.
• 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.
2. Install a grease zerk PT1/8 to the grease inlet. (The grease zerk is
delivered with the manipulator.)
3. Inject the grease through the grease inlet using a grease gun.
– Grease type:
– Amount of grease:
– Air supply pressure of grease pump:
– Grease injection rate:
4. 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.)
5. Move the S-axis for a few minutes to discharge excess grease.
6. Wipe the discharged grease with a cloth. Remove the grease zerk
from the grease inlet, and reinstall the plugs to the grease inlet and
grease exhaust port. Before installing the plugs, apply Three Bond
1206C on the thread part of each plug, then tighten the plug with a
tightening torque of 4.9 N•m (0.5 kgf•m).
9-9
155556-1CD
VIGO Grease RE No. 0
approx. 450 cc
0.3 MPa or less
8 g/s or less
HW0484963
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