9-8
155556-1CD
HW0484963
VA1400
9 Maintenance and Inspection
9.3 Notes on Grease Replenishment/Exchange Procedures
9.3.1.1 Grease
Replenishment
Fig. 9-4 “S-Axis Speed Reducer Diagram”
Replenish the grease according to the following procedure:
1. Remove the hexagon socket head plugs PT1/8 from the grease inlet
and grease exhaust port.
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:
VIGO Grease RE No. 0
– Amount of grease:
70 cc (140 cc for 1st supply)
– Air supply pressure of grease pump: 0.3 MPa or less
– Grease injection rate:
8 g/s or less
4. Move the S-axis for a few minutes to discharge excess grease.
5. 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).
NOTE
• 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.
• 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.
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