Grease Exchange - YASKAWA Motoman-MPL300 II Instructions Manual

173124-1CD
MPL300 II

9.3.3.2 Grease Exchange

9 Maintenance and Inspection
9.3 Grease Replenishment/Exchange
(Refer to Fig. 9-5(a) "L-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. The grease exchange is completed when new grease appears in the
grease exhaust port. (The new grease can be distinguished from the
old grease by color.)
5. Move the L-axis for a few minutes to discharge excess grease.
6. 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.
7. 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).
9-12
Molywhite RE No.00
approx. 1800 cc
0.3 MPa or less
8 g/s or less
HW1482991
75 of 100