Grease Exchange - YASKAWA MOTOMAN-MH80 Instructions Manual

MH80 Manipulator

9.3.3.2 Grease Exchange

9 Maintenance and Inspection
9.3 Notes on Grease Replenishment/Exchange Procedures
4. Inject grease into the grease inlet using a grease gun.
– Grease type:
– Amount of grease:
– Air supply pressure of grease pump:
– Grease injection rate:
5. Move the U-axis for a few minutes to discharge excess grease.
6. Wipe the discharged grease with a cloth and reinstall the plug PT1/8
on the grease exhaust port. 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).
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
(Refer to Fig. 9-7 "U-Axis Speed Reducer".)
1. Tilt the U-arm horizontal to the ground. (Refer to Fig. 9-6 "U-Arm
Posture in Grease Replenishment/Exchange for U-Axis Speed
Reducer".)
2. Remove the hexagon socket head plug PT1/8 from the grease
exhaust port.
• If grease is injected with the plug on, the grease will go
inside the motor and may cause a damage. Make sure to
remove the plug before the grease injection.
NOTE
• 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.
3. 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.)
4. Inject grease into the grease inlet using a grease gun.
– Grease type:
– Amount of grease:
– Air supply pressure of grease pump:
– Grease injection rate:
5. The grease exchange is completed when new grease appears in the
grease exhaust port. The new grease can be distinguished from the
old grease by color.
6. Move the U-axis for a few minutes to discharge excess grease.
9-14
158813-1CD
Molywhite RE No. 00
140 cc
(280 cc for 1st supply)
0.3 MPa or less
8 g/s or less
· ·
m (0.5 kgf m).
Molywhite RE No. 00
700 cc
0.3 MPa or less
8 g/s or less
HW1480080
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