9-16157569-1CDHW0485652MPL100 9 Maintenance and Inspection9.3 Notes on Grease Replenishment/Exchange Procedures9.3.3 Grease Replenishment/Exchange for U-Axis Speed ReducerFig. 9-6: U-Axis Speed Reducer Diagram9.3.3.1 Grease Replenishment(Refer to Fig. 9-6 “U-Axis Speed Reducer Diagram”.)1. Remove the hexagon socket head plugs from the grease inlet andgrease exhaust port.2. Install a grease zerk A-PT1/8 to the grease inlet. (The grease zerk is delivered with the manipulator.)3. Inject grease through the grease inlet using a grease gun– Grease type: Molywhite RE No.00– Amount of grease: 320 cc (640 cc for 1st supply)– Air supply pressure of grease pump: 0.3 MPa or less– Grease injection rate: 8 g/s or less4. Move the U-axis for a few minutes to discharge excess grease.Grease inletHexagon socket head plugGrease exhaust portHexagon socket head plugU-axis speedreducerNOTE• If grease is injected with the plug on, 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 exhaustport. Failure to observe this instruction may result indamage to the motor due to coming off of an oil seal.81 of 106