9-12170625-1CDHW1482737ES200RD II 9 Maintenance and Inspection9.3 Grease Replenishment/Exchange9.3.4 Grease Replenishment/Exchange for U-Axis Speed ReducerFig. 9-6: U-Axis Speed Reducer Diagram9.3.4.1 Grease Replenishment(Refer to Fig. 9-6 “U-Axis Speed Reducer Diagram”.)1. Make the U-arm horizontal to the ground.2. Remove the hexagon socket head plug PT1/8 from the grease inletand the grease exhaust port.3. Install a grease zerk A-PT1/8 to the grease inlet.(The grease zerk is delivered with the manipulator.)4. Inject grease through the grease inlet using a grease gun.– Grease type: Molywhite RE No. 00– Amount of grease: 280 cc(560 cc for 1st supply)– Air supply pressure of grease pump: 0.3 MPa or less– Grease injection rate: 8 g/s or less5. Move the U-axis for a few minutes to discharge excess grease.6. Wipe the discharged grease with a cloth, and reinstall the plug. Beforeinstalling the plug, apply Three Bond 1206C on the thread part of theplug, then 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.Before installing the plug, apply Three Bond 1206C on the thread partof the plug, then tighten the plug with a tightening torque of 4.9 N•m(0.5 kgf•m).Grease inletHexagon socket head plug PT1/8Grease exhaust portHexagon socket head plug PT1/8NOTE If grease is injected with the plug on, grease will leak insidethe motor and may cause a damage. Make sure to removethe plug before the grease injection.67 of 100
