9 Maintenance and Inspection9.3 Grease Replenishment/Exchange9-14170904-1CDHW1482870MPL80 II9.3.5 Grease Replenishment for B- and T-Axis GearsFig. 9-8: B- and T-Axis Gears Diagram9.3.5.1 Grease Replenishment(Refer to Fig. 9-8 “B- and T-Axis Gears Diagram”.)1. Remove the hexagon socket head plug PT3/8 from the exhaust port.2. Remove the hexagon socket head plug PT1/8.3. Inject grease through the grease inlet using a grease gun.– Grease type: Molywhite RE No. 00– Amount of grease: approx.700 cc(1400 cc for 1st supply)– Air supply pressure of grease pump: 0.3 MPa or less– Grease injection rate: 8 g/s or less4. The grease discharge is complete when new grease appears from theexhaust port. The new grease can be distinguished from the oldgrease by color.5. Move the B-axis for a few minutes to discharge the excess grease.6. Wipe the discharged grease with a cloth and reinstall the hexagonsocket head plug PT3/8 to the exhaust port.Before installing the plug, apply Three Bond 1206C on the thread partof each plug, then tighten the plug with a tightening torque of 23 N•m(2.3 kgf•m).7. Remove the grease zerk from the grease inlet and reinstall thehexagon socket head plug PT1/8.Before installing the plug, apply Three Bond 1206C on the thread partof each plug, then tighten the plug with a tightening torque of 4.9 N•m(0.5 kgf•m).U-armGrease inletExhaust portHexagon socket headplug PT3/8Hexagon socket headplug PT1/8NOTE• If grease is injected with the bolt on, grease will leak insidethe motor and may cause a damage. Make sure toremove the bolt before the grease injection.• Do not install a joint, a hose, etc. to the grease exhaustport. Failure to observe this instruction may result indamage to the motor due to coming off of an oil seal.62 of 81