9 Maintenance and Inspection
9.2 Maintenance for Manipulator
9-5
154771-1CD
HW0485080
RV Speed Reducers
Grease Replenishment
Refer to Fig , Fig, and Fig
1. Remove the plug on the So (Lo, Uo) grease exhaust port. Remove the cover on the
L-axis motor side..
2. Inject grease into the Si (Li, Ui) grease inlet with the injecting pressure of 0.3 Mpa or
less and injecting speed of 8.0 g/s or less. (Ass for L- and U-axis, before injecting
grease, remove the plugs on Li and Ui and install G nipples A-PT 1/8.)
3. Move S-axis (L-axis, U-axis) for more than 20 minutes to discharge excessive grease.
4. Wipe the So (Lo, Uo) exhaust ports with a cloth and reinstall plugs in So (Li, Lo and Ui,
Uo) exhaust ports. Apply Three Bond 4501 on screwed parts. Reinstall the cover on
the L-axis motor side.
Grease Replacement
Refer to Fig , Fig, and Fig
1. Remove the plug on the So (Lo, Uo) grease exhaust port. Remove the cover on the
L-axis motor side..
2. Inject grease into the Si (Li, Ui) grease inlet with the injecting pressure of 0.3 Mpa or
less and injecting speed of 8.0 g/s or less. (Ass for L- and U-axis, before injecting
• If grease is added without removing the plug, the internal pressure will be higher and
may damage it. It is absolutely necessary to remove the plug.
• When injecting grease into the L-axis speed reducer, grease may come out from the air
flow on the motor base. Remove the cover on the motor side to check if excessive
grease is coming out. If there is any grease, wipe it off.
Grease type: Molywhite RE No.00
Amount of grease:
S-axis: 700 cc (1400 cc for the 1st supply)
L-axis: 600 cc (1200 cc for the 1st supply)
U-axis: 300 cc (600 cc for the 1st supply)
• If grease is added without removing the plug, the internal pressure will be higher and
may damage it. It is absolutely necessary to remove the plug.
• When injecting grease into the L-axis speed reducer, grease may come out from the air
flow on the motor base. Remove the cover on the motor side to check if excessive
grease is coming out. If there is any grease, wipe it off.
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