
4
Notes on Grease Replenishment/Exchange Procedures
4.1
Grease Exchange Procedures for Speed Reducers and Gears
4-3
HW1484673
HW1484673
1. Before injecting grease, the posture of the manipulator must be set as
indicated in
table 4-1 “Recommended Posture for Grease Injection”
If it is difficult to make the recommended posture because of external
cabling or etc., adjust the posture as much as possible to make the
position of grease inlet located in the lower part and the position of
exhaust port located in the upper part. If the exhaust port is located in
the lower part, grease may not be exchanged properly.
Table 4-1: Recommended Posture for Grease Injection
2. Remove 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 the 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
Mounting
condition
Posture
Grease
inlet
S-axis
L-axis
U-axis
R-axis
B-axis
T-axis
Floor
mounted
S-axis
0°
Any
Any
Any
L-axis
Any
0°
Any
U-, R-,
B-, T-
axes
Any
0°
0° *
0°
0°
Any
Ceiling
mounted
S-axis
0°
Any
Any
Any
L-axis
Any
0°
Any
U-, R-,
B-, T-
axes
Any
0°
0° *
0°
0°
Any
Wall
mounted
S-axis
0°
Any
Any
Any
L-axis
Any
±90°
Any
U-, R-,
B-, T-
axes
Any
±90°
0° *
0°
0°
Any
* If the recommended posture of the L-axis cannot be made, rotate the U-axis to
make the U-arm horizontal to the ground.
NOTE
The positions of grease inlet and exhaust port are different
depending on the mounting condition of the manipulator.
Confirm the positions beforehand.
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