9-19
158813-1CD
HW1480080
MH80 Manipulator
9 Maintenance and Inspection
9.3 Notes on Grease Replenishment/Exchange Procedures
9.3.5.2 Grease
Exchange
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:
1500 cc
– Air supply pressure of grease pump: 0.3 MPa or less
– Grease injection rate:
8 g/s or less
4. The grease exchange is completed when new grease appears from
the grease exhaust port. The new grease is distinguished from the old
grease by color.
5. Move the B-axis for a few minutes to discharge excess grease.
6. Wipe the discharged grease with a cloth and reinstall the set screw M6
on 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).
7. Remove the grease zerk from the grease inlet and reinstall the plug
PT1/8. 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).
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.
NOTE
If the plug is installed while the grease is being exhausted,
the grease will go inside the motor and may cause a
damage. Ensure that the grease has been completely
exhausted before installing the plug.
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