YASKAWA MOTOMAN-MH80 - Grease Replenishment;Exchange for B- and T-Axis Speed Reducers and Gears; Grease Replenishment

9 Maintenance and Inspection
9.3 Notes on Grease Replenishment/Exchange Procedures
9-18
158813-1CD
HW1480080
MH80 Manipulator
9.3.5 Grease Replenishment/Exchange for B- and T-Axis Speed Reducers
and Gears
Fig. 9-9: B- and T-Axis Speed Reducers and Gears
9.3.5.1 Grease Replenishment
(Refer to Fig. 9-9 “B- and T-Axis Speed Reducers and Gears”.)
1. Remove the hexagon socket head set screw M6 from the grease
exhaust port.
2. Remove the hexagon socket head plug PT1/8 from the grease inlet
and install the grease zerk PT1/8. (The grease zerk is delivered with
the manipulator.)
3. Inject grease into the grease inlet using a grease gun.
– Grease type: Molywhite RE No. 00
–
Amount of grease: 300 cc
(600 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 B-axis for a few minutes to discharge excess grease.
5. Wipe the discharged grease with a cloth and reinstall the set screw M6
o
n the grease exhaust port. Apply Three Bond 1206C to the thread
part of the set screw, and tighten the set screw with a tightening torque
of 3.9 N·m (0.4 kgf·m).
6. Remove the grease zerk from the grease inlet and reinstall the plug
PT
1/8. Apply Three Bond 1206C to the thread part of the plug, and
tighten the plug with a tightening torque of 4.9 N·m (0.5 kgf·m).
B-axis speed reducer and gear
T-axis speed reducer and gear
(Hexagon socket head plug PT1/8)
(Hexagon socket head plug PT1/8)
Grease exhaust port
Grease inlet
NOTE
• If grease is injected with the set screw on, the grease will
go 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.
60 of 77