5 Notes on Grease Replenishment/Exchange Procedures
5.1 Grease Exchange Procedures for Each Axis Speed Reducer
5-4
HW1485471
HW1485471
1. Before injecting grease, the posture of the manipulator must be set as
indicated in table 5-1 “Recommended Posture for Grease Injection” .
If it is difficult to make the recommended posture because of the
external cabling or etc., adjust the posture as much as possible to set
the position of the grease inlet face the lower part and the position of
exhaust port face the upper part. If the exhaust port faces the lower
part, grease may not be exchanged properly.
Table 5-1: Recommended Posture for Grease Injection
2. Unscrew the hexagon socket head plugs from the grease inlet and
grease exhaust port.
3. Install a grease zerk 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: Molywhite RE No.00
– Recommended grease lubricator “Powerlube P3C (made by
Macnaught)”
– Amount of grease: 7 g/s or less
(For example, if grease is supplied from the lubricator at 2 times/s,
set the amount to 3.5 g/time or less.)
– Air supply pressure of grease pump: Approximately 0.3 MPa or less
Table 5-2: Amount of Grease
Axis to inject Posture
S-axis L-axis U-axis R-axis B-axis T-axis
S-axis Any Any Any Any Any Any
L-axis Any 0° Any Any Any Any
U-axis Any 0° * 0° * Any Any Any
R-axis
Any 0° * 0° * 0° 0° 0°B-axis
T-axis
* If the recommended posture cannot be made, make the U-arm horizontal to the
ground.
Axis to exchange grease Amount of grease
S-axis Approx. 8900 g
L-axis Approx. 2600 g
U-axis Approx. 1600 g
R-, B-, and T-axis gear in the casing Approx. 1740 g
R-axis Approx. 1780 g
B-, and T-axes Approx. 1130 g
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