Grease Replenishment For U-Axis Speed Reducer - YASKAWA MOTOMAN-MH5S Maintenance Manual

MH5S (II) /MH5F
4.4
4 Grease Replenishment

4.4 Grease Replenishment for U-Axis Speed Reducer

Grease Replenishment for U-Axis Speed Reducer
Fig. 4-4: U-Axis Speed Reducer Diagram
Grease inlet
(Hexagon socket
head cap screw M6)
Cover
 Grease Replenishment
(Refer to Fig. 4-4 "U-Axis Speed Reducer Diagram".)
Replenish the grease in accordance with the following procedure:
1. Remove the cover to unscrew hexagon socket head cap screw M6
from the grease inlet and the plug M5 from the exhaust port.
• If grease is injected with the screw on, the grease will leak
inside the motor and may cause a damage. Make sure to
remove the screw 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 the grease zerk A-MT6 x 1 to the grease inlet. (The grease zerk
is packed with the manipulator on the shipment.)
3. Inject grease into the grease inlet using a grease gun.
– Grease type:
– Amount of grease:
The exhaust port is used for air exhaust, and the grease is
NOTE
not exhausted from the exhaust port. Do not inject
excessive grease through the grease inlet.
4. Move the U-axis for a few minutes to discharge excess grease.
5. Wipe the discharged grease with a cloth. Remove the grease zerk
from the grease inlet. Reinstall the screw M6 to the grease inlet and
the plug M5 to the exhaust port before reinstalling the cover.
Apply Three Bond 1206C on the thread part of the screw/plug.
Exhaust port
(Plug M5)
U-axis
speed reducer
U-axis motor
4-4
176183-1CD
Harmonic Grease SK-1A
20 cc
HW1483638
30 of 99