YASKAWA MOTOMAN-MPL80 II - Grease Replenishment;Exchange for S-Axis Speed Reducer; Grease Replenishment; Grease Exchange

9 Maintenance and Inspection
9.3 Grease Replenishment/Exchange
9-8
170904-1CD
HW1482870
MPL80 II
9.3.2 Grease Replenishment/Exchange for S-axis Speed Reducer
Fig. 9-4: S-axis Speed Reducer Diagram
9.3.2.1 Grease Replenishment
(Refer to Fig. 9-4 “S-axis Speed Reducer Diagram”.)
Replenish the grease according to the following procedure:
1. Remove the hexagon socket head plug PT1/4 from the grease inl
et
an
d the hexagon socket head plug PT3/8 from the grease exhaust
port
.
2. Install the grease zerk PT1/4 to the grease inlet.
(The grease zerk is delivered with the manipulator.)
3
. Inject the grease through the inlet using a grease gun.
– Grease type: Molywhite RE No.00
– Amount of
grease:
520 cc
(1040 cc for 1st supply)
– Air supply pressure of grease pump: 0.3 MPa or less
– Grease injection rate: 8 g/s or less
4. Move the S-axis for a few minutes to discharge the excess grease.
5. Remove the grease zerk from the grease inlet and reinstall th
e
hexagon socket head plug PT 1/4.
Before installing the plug, apply Three Bond 1206C on the thread par
t
o
f each plug, then tighten the plug with a tightening torque of 12 N•m
(1.2 kgf•m).
6. Wipe the discharged grease with a cloth and reinstall the hexagon
socket head plug PT 3/8 to the exhaust port.
Before installing the plug, apply Three Bond 1206C on the thread part
of each plug, then tighten the plug with a tightening torque of 23 N•m
(2.3 kgf•m).
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Grease exhaust port
Hexagon socket
head plug PT3/8
S-axis speed reducer
Grease inlet
Hexagon socket
head plug PT1/4
NOTE
• If grease is injected with the plugs on, the 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 a grease exhaust port
.
Fa
ilure to observe this instruction may result in damage
to
the mo
tor due to coming off of an oil seal.
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