Grease Replenishment/Exchange For U-Axis Speed Reducer; Grease Replenishment; Grease Exchange - YASKAWA Motoman-MPL300 II Instructions Manual

MPL300 II

9.3.4 Grease Replenishment/Exchange for U-Axis Speed Reducer

9.3.4.1 Grease Replenishment

9 Maintenance and Inspection
9.3 Grease Replenishment/Exchange
Fig. 9-6: U-Axis Speed Reducer Diagram
Grease exhaust port
Hexagon socket head plug
(Refer to Fig. 9-6 "U-Axis Speed Reducer Diagram".)
1. Remove the hexagon socket head plugs from the grease inlet and
grease exhaust port.
• If grease is injected with the plug on, grease will leak
inside the motor and may cause a damage. Make sure to
remove the plug before the grease injection.
NOTE
• 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.
2. Install a grease zerk A-PT1/8 to the grease inlet.
(The grease zerk is delivered with the manipulator.)
3. Inject grease through the grease inlet using a grease gun
– Grease type:
– Amount of grease:
– Air supply pressure of grease pump:
– Grease injection rate:
4. Move the U-axis for a few minutes to discharge excess grease.
5. Wipe the discharged grease with a cloth, and reinstall the plug. Before
installing the plug, apply Three Bond 1206C on the thread part of the
plug. Then tighten the plug with a tightening torque of 24.5 N•m
(2.5 kgf•m).
If the plug is installed while grease is being exhausted,
grease will leak inside the motor and may cause a damage.
NOTE
Make sure to install the plug when the grease exhaust is
completed.
6. Remove the grease zerk from the grease inlet, and reinstall the plug.
Before installing the plug, apply Three Bond 1206C on the thread part
of the plug. Then tighten the plug with a tightening torque of 4.9 N•m
(0.5 kgf•m).
9-13
U-axis speed Grease inlet
Hexagon socket head plug
reducer
Molywhite RE No.00
320 cc
(640 cc for 1st supply)
0.3 MPa or less
8 g/s or less
HW1482991
173124-1CD
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