YASKAWA MOTOMAN-MH215 II Instructions Manual page 71

177010-1CD
MH215
II
9 Maintenance and Inspection
9.3 Grease Replenishment/Exchange

Grease Exchange
(Refer to Fig. 9-6 "U-Axis Speed Reducer Diagram".)
1. Make the U-arm horizontal to the ground.
2. Remove the hexagon socket head plug from the grease inlet and
exhaust port.
If grease is injected with the plug on, the 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.
3. Install a grease zerk A-PT1/8 to the grease inlet. (The grease zerk is
delivered with the manipulator.)
4. Inject grease through the grease inlet using a grease gun.
– Grease type:
– Amount of grease:
– Air supply pressure of grease pump:
– Grease injection rate:
5. The grease exchange is complete when new grease appears in the
grease exhaust port. (The new grease can be distinguished from the
old grease by color.)
6. Move the U-axis for a few minutes to discharge excess grease.
7. Wipe the discharged grease with a cloth and reinstall the plug PT1/8
on the grease exhaust port. Apply Three Bond 1206C to the thread
part of the plug, and tighten the plug with a tightening torque of 4.9
• •
N m (0.5 kgf m).
If the plug is installed while the grease is being exhausted,
the grease will leak inside the motor and may cause a
NOTE
damage. Ensure that the grease has been completely
exhausted before installing the plug.
8. Remove the grease zerk from the grease inlet and reinstall the plug
PT1/8. Apply Three Bond 1206C to the thread part of the plug, and
tighten the plug with a tightening torque of 4.9 N
HW1483759
9-13
Molywhite RE No. 00
approx. 1800 cc
0.3 MPa or less
8 g/s or less
• •
m (0.5 kgf m).
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