9 Maintenance and Inspection9.3 Grease Replenishment/Exchange9-10177010-1CDHW1483759MH215 II9.3.1.2 Grease Replenishment/Exchange for L-Axis Speed ReducerFig. 9-5: L-Axis Speed Reducer Diagram Grease Exchange(Refer to Fig. 9-5 “L-Axis Speed Reducer Diagram”.)1. Make the L-arm vertical to the ground.2. Remove the hexagon socket head plug from the grease inlet andexhaust port.3. Install a grease zerk A-PT1/8 to the grease inlet. (The grease zerk isdelivered 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 L-axis for a few minutes to discharge excess grease.6. Wipe the discharged grease with a cloth and reinstall the plug PT3/8on the grease exhaust port. Apply Three Bond 1206C to the threadpart of the plug, and 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 the plugPT1/8. Apply Three Bond 1206C to the thread part of the plug, andtighten the plug with a tightening torque of 4.9 N• m (0.5 kgf • m).Hexagon socket head plug PT3/8Grease exhaust portGrease InletHexagon socket head plug PT1/8NOTEIf grease is injected with the plug on, the grease will leakinside the motor and may cause a damage. Make sure toremove 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 tothe motor due to coming off of an oil seal.68 of 102