YASKAWA MOTOMAN-MH5S Maintenance Manual

Contents

8 Disassembly and Reassembly and Adjustment of Timing Belts8.3 Disassembly and Reassembly of B- and T-Axis Timing Belts8-5176183-1CDHW1483638MH5S(II)/MH5F8.3 Disassembly and Reassembly of B- and T-Axis TimingBelts• Refer to Fig. 8-3 “Disassembly & Reassembly of B- and T-AxisTiming Belts”. Disassembly(Refer to section 5.5 “Disassembly and Reassembly of B-Axis Motor” andsection 5.6 “Disassembly and Reassembly of T-Axis Motor”.)1. Unscrew the hexagon socket button head screws and remove thecover .2. Unscrew the GT-SA bolts and remove the B-axis timing belt .3. Unscrew the hexagon socket button head screws and remove thecover .4. Unscrew the GT-SA bolts and remove the T-axis timing belt . Reassembly(Refer to section 5.5 and section 5.6.)1. Mount the R-axis timing belt and adjust the initial tension of thetiming belt. (Refer to section 8.4 “Adjustment of Timing Belts”.) Thentighten the GT-SA bolts with the tightening torque shown inTable 8-3 “B- and T-Axis Timing Belts Parts Checklist”.2. Mount the B-axis timing belt and adjust the initial tension of thetiming belt. (Refer to section 8.4.) Then tighten the GT-SA bolts withthe tightening torque shown in Table 8-3.3. Apply Three Bond 1206C to the matching face between the U-arm andthe cover4. Mount the cover and tighten the hexagon socket button headscrews with the tightening torque shown in Table 8-3.652 1874 3Table 8-3: B- and T-Axis Timing Belts Parts ChecklistNo. Item Qty. RemarkB-axis timing belt 060S3M396 1GT-SA bolt M4 (length: 16 mm)Washer M42 Tightening Torque:2.80 N•mT-Axis timing belt 060S3M396 1GT-SA bolt M4 (length: 16 mm)Washer M42 Tightening Torque:2.80 N•mCover HW1301269-2 1Hexagon socket button head screw M4(length: 10 mm)9 Tightening Torque:1.00 N•mCover HW1301269-2 1Hexagon socket button head screw M4(length: 10 mm)9 Tightening Torque:1.00 N•m3212561234567876 of 99