YASKAWA MOTOMAN-MS165, Instructions Manual

Page: 72 / 100

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167109-1CD
HW1482308
9 Maintenance and Inspection
9.3 Grease Exchange
MS165
2. Install the grease zerk to the grease inlet. (Refer to fig. 9-5 “Plug
Position of S- and L-axis Speed Reducer” , fig. 9-6 “Plug Position of
U-axis Speed Reducer and R-, B-, and T-gear in a casing” , and
fig. 9-7 “Plug Position of R-, B-, and T-axis” .) (The grease zerk is
delivered with the manipulator.)
3. Inject grease through the grease inlet using a grease gun.
– Grease type: Molywhite RE No.00
– Recommended grease lubricator: Powerlube P3C by Macnaught
– Grease injection rate: 7 g/s or less
When the grease is discharged at 2 times/s from the lubricator, set
the discharge amount as 3.5 g/time or less. (Rough standard)
– Air supply pressure of grease pump: 0.3 MPa or less
(Rough standard)
4. 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.
5. Discharge the specified amount of grease from the grease inlet or
grease exhaust port (Refer to table 9-5 “Amount of Grease
Discharged from Each Axis” .). In order to exhaust specified amount
of grease, receive discharged grease by a container, and then
measure the weight of discharged grease by weighing the container till
the amount reaches to the specified amount.
Use one of the following methods to discharge grease.
Discharging method 1: Extruding the grease by air injected from the
exhaust port.
– Connect the joint and the hose to the grease inlet.
– Connect the regulator to the grease exhaust port.
– Extrude the grease by injecting the air from the exhaust port.
(Extrusion air pressure: 0.025 MPa or less)
If the grease is not discharged enough by extruding air, operate the
manipulator again as shown in
table 9-6 “Teaching Operation of Each
Axis” .
Discharging method 2: Sucking out the grease from the exhaust port.
– Leave the inlet open and insert the tube into the exhaust port.
– Discharge the grease by suction using the tube.
(Suction pressure: 0.025 MPa or less)
If the grease is not discharged enough by suction, operate the manipulator
again as shown in
table 9-6 .
Table 9-4: Amount of Grease to Inject (as a guide only)
Grease exchanging point Amount of Grease to Inject
(as a guide only)
S-axis 4350 g
L-axis 2180 g
U-axis 2180 g
R-, B-, T-gear in the casing 2260 g
R-axis 1910 g
B-and T-axis 1130 g
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