YASKAWA MOTOMAN-MH900 Maintenance Manual

Contents

YASKAWA MOTOMAN-MH900 Maintenance Manual Manual pdf 22 page image

3-2180930-1CD180930-1CD3 Grease Replenishment/Exchange3.3 Grease Replenishment/Exchange for S-axis Speed Reducer andGearMH9003.3 Grease Replenishment/Exchange for S-axis SpeedReducer and GearFig. 3-1: S-axis Speed Reducer and Gear Diagram3.3.1 S-Axis Speed Reducer and Gear Grease Replenishment(Refer to Fig. 3-1 “S-axis Speed Reducer and Gear Diagram”.)1. Remove the hexagon socket head plug 3/8BSPT from the greaseexhaust port.2. Remove the hexagon socket head plug 3/8 BSPT from the grease inletand install a grease zerk 3/8 BSPT.3. Inject grease into the grease inlet using a grease gun.(The grease zerk is delivered with the Manipulator.)– Grease type: Molywhite RE No. 00– Amount of grease: approx. 12200g(24400g for the 1st supply)– Air supply pressure of grease pump: 0.3MPa or less– Grease injection rate: 8g/s or less4. Move the S-axis for a few minutes to discharge excess grease.5. 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 23N•m(2.4kgf•m).Grease Inlet HexagonSocket Head Plug 3/8 BSPTGrease exhaust portHexagon socket head plug BSPT 3/8S-Axis Gear UnitS-Axis Speed Reducer• Do not add grease without removing the plug/screw fromthe grease exhaust port.Grease will leak inside a motor or an oil seal of a speedreducer will come off, which may damage the motor. Makesure to remove the plug/screw.• Do not install a joint, a hose, etc. to the grease exhaustport.Failure to observe this instruction may result in damage tothe motor due to coming off of an oil seal.22 of 79