Epson C Series, Maintenance Manual

Page: 393 / 668

C8 Maintenance 9. Joint #5
C Series Maintenance Manual Rev.2 373
9.2 Joint #5 - Replacing the Reduction Gear Unit
(Replacing the Joint #5, #6 Reduction Gear Unit Set)
For replacement of the Joint #5 and Joint #6 reduction gear unit, replace the Joints #5, #6 reduction gear unit set.
The Joints #5 and #6 reduction gear unit set is adjusted in advance.
Name Qty. Note
Maintenance
Parts
Joints #5, #6 Reduction gear unit set 1 1674610 (common to C8 series)
Belt tensile jig* 1 1674582
Tools
Hexagonal
wrench
width across flats: 2 mm 1 For M4 hexagon socket set screws
width across flats: 2.5 mm 1 For M3 hexagon socket head cap bolts
width across flats: 3 mm 1 For M4 hexagon socket head cap bolts
width across flats: 4 mm 1 For M5 hexagon socket head cap bolts
width across flats: 5 mm 1 For M6 hexagon socket head cap bolts
Cross-point screwdriver (#2) 1 For cross recessed head screws
Torque wrench 1 For tightening torque control
Spanner ( width across flats: 8 mm) 1 For air fittings
Feeler gauge (0.5 mm) 2 For drive boss position adjustment
Belt tension meter 1 Refer: Unitta U-505
The brake is mounted on each joint to prevent the arm from lowering due to its own weight while the Controller
power is OFF or the motor is OFF status. The brake does not work during replacement. Be careful when
performing maintenance work.