9
Maintenance and Inspection
9.3 Grease Replenishment/Exchange
9-10
170904-1CD
HW1482870
MPL80
II
9.3.3 Grease Replenishment/Exchange for L-Axis Speed Reducer
Fig. 9-5: L-Axis Speed Reducer Diagram
9.3.3.1 Grease Replenishment
(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 grease
exhaust 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 type:
Molywhite RE No. 00
– Amount of grease:
250 cc
(500 cc for 1st supply)
– Air supply pressure of grease pump:
0.3 MPa or less
– Grease injection rate:
8 g/s or less
6. Move the L-axis for a few minutes to discharge the excess grease.
7. Wipe the discharged grease with a cloth and reinstall the hexagon
socket head plug PT3/8 to the exhaust port.
Before installing the plugs, 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).
8. Remove the grease zerk from the grease inlet and reinstall the
hexagon socket head plug PT1/8 to the grease inlet.
Before installing the plug, apply Three Bond 1206C on the thread part
of each plug, then tighten the plug with a tightening torque of 4.9 N•m
(0.5 kgf•m).
Grease exhaust port
Hexagon socket head
plug PT3/8
Grease inlet
Hexagon socket
head plug PT1/8
L-axis speed reducer
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 exhaust
port. Failure to observe this instruction may result in
damage to the motor due to coming off of an oil seal.
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