YASKAWA MOTOMAN-MPL80 II - Page 59

9-11
170904-1CD
HW1482870
9 Maintenance and Inspection
9.3 Grease Replenishment/Exchange
MPL80
II
9.3.3.2 Grease Exchange
(Refer to Fig. 9-5 “L-Axis Speed Reducer Diagram”.)
1. Make the L-arm vertical to the ground.
2. Remove the hexagon socket head plug PT3/8 from the gre
ase
exha
ust port.
3. Remove the hexagon socket head plug PT1/8 from the grease inlet.
4. Install the grease zerk PT1/8 to the grease inlet.
(The grease zerk is delivered with the manipulator.)
5.
Inject grease through the grease inlet using a grease gun.
– Grease ty
pe:
Molywhite RE No. 00
– Amount of grease: approx. 1650 cc
– Air supply pressure of grease pump: 0.3 MPa or less
– Grease injection rate: 8 g/s or less
6. The grease discharge is complete when new grease appears from the
exhaust port. The new grease can be distinguished from the old
grease by color.
7. Move the L-axis for a few minutes to discharge the excess grease.
8. Wipe the discharged grease with a cloth and reinstall the hexago
n
s
ocket head plug PT3/8 to the exhaust port.
Before installing the plugs, apply Three Bond 1206C on the thread p
art
of each
plug, then tighten the plug with a tightening torque of 23 N•
m
(2.3 k
gf•m).
9. Remove the grease zerk from the grease inlet and reinstall th
e
he
xagon socket head plug PT1/8 to the grease inlet.
Before installing the plug, apply Three Bond 1206C on the thread pa
rt
of each
plug, then tighten the plug with a tightening torque of 4.9
N•m
(0.5 k
gf
•m).
NOTE
• If grease is injected with the exhaust plug on, grease will
leak inside the motor and may cause a damage. Make
sure to remove the plug before the grease injection.
•
Do not install a joint, a hose, etc. to the grease exhau
st
por
t. Failure to observe this instruction may r
esult in
damage
to the motor due to coming off of an oil seal.
NOTE
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.
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