9-15
177010-1CD
HW1483759
9 Maintenance and Inspection
9.3 Grease Replenishment/Exchange
MH215
II
Grease Replenishment for R-, B-, T-Axes Gears in the Casing
(Refer to Fig. 9-7 “U-Arm Diagram”.)
1. Remove the hexagon socket head plug from the grease inlet and
exhaust port.
2. Install a grease zerk A-PT1/8 to the grease inlet. (The grease zerk is
delivered with the manipulator.)
3. Inject the grease through 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 R-, B-, T-Axes for a few minutes to discharge excess grease.
5. 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).
6. 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).
If grease is injected with the plug on, the 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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