4
Notes on Grease Replenishment/Exchange Procedures
4.1
Grease Exchange Procedures for Speed Reducers and Gears
4-4
HW1484673
HW1484673
Table 4-2: Amount of Grease
5. Injection stop:
– <When replacing the speed reducer>
Stop injecting grease when grease can be seen from the exhaust
port.
– <When exchanging grease>
The old grease is discharged from the grease exhaust port. At this
time, stop injection when the mixture of the old grease and the new
grease in an equal ratio is seen.
And then, skip the steps 6 and 7, and proceed to the step 8.
6. Operate each axis about 5 times in the teach mode as shown in
table 4-3 “Teaching Operation for Each Axis”
7. Inject grease again, and when grease comes out of the exhaust port,
grease injection is completed.
8. Discharge the specified amount of grease from the grease inlet or
grease exhaust port. (Refer to
.) In order to discharge the specified
amount of grease, receive the discharged grease by using a container,
and then measure the weight of the discharged grease by weighing
the container till the amount reaches to the specified amount.
Use one of the following methods to discharge grease.
Method 1: Extruding grease by air
(1) Connect the joint and the hose to the grease inlet.
(2) Connect the regulator to the grease exhaust port.
(3) Inject air from the grease exhaust port to extrude grease by air.
(Extrusion air pressure: 0.025 MPa or less)
(4) If the grease is not discharged enough by injecting air, operate the
manipulator about 5 times in the teach mode as shown in
Axis to exchange grease
Amount of grease
S-axis
Approx. 2750 g
L-axis
Approx. 1410 g
U-axis
Approx. 640 g
R-axis (YR-1-06VX50-A00)
Approx. 3050 g
R-axis (YR-1-06VXL35-A00)
Approx. 4700 g
B-, and T-axes
B-, and T-axis gear
Approx. 1310 g
Table 4-3: Teaching Operation for Each Axis
Axis to replenish
grease
Angle for teaching
operation
Speed for teaching
operation
S-axis
S-axis ±45°
User-specified
L-axis
L-axis ±45°
U-axis
U-axis ±45°
In the casing
R-, B-, and T-axis gear
R-, B-, and T-axes
R-axis ±90°
B-axis ±45°
T-axis ±90°
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