Epson T-B Series

T3-B T6-B Maintenance 9. Joint #1
70 T-B series Maintenance Manual Rev.1
9.2 Replacing Joint #1 Reduction Gear Units
A reduction gear unit consists of the following three parts. When replacing the reduction
gear units, be sure to always replace the elliptic cam bearing, flex gear, and internal gear all
together as one set.
For details of the parts, refer to “19. Maintenance Parts List”.
Name Quantity Note
Maintenance
part
Reduction Gear Units
1
T3-B: 1829508
Set of reduction gear units
and elliptic cam
positioning jig
1 T6-B: 1829509
Tools
Hexagonal
wrench
Width across
flats: 2 mm
1 For M4 set screw
Width across
flats: 2.5 mm
1 For M3 screw
Width across
flats: 3 mm
1 For M4 screw
Torque wrench
1
Nippers
1
Spatula
1
For applying grease
Wiping cloth
1
For wiping grease (Flange)
1
For wiping grease (Bolt)
Grease Grease SFB No.1 -
Joint #1
Reduction
Gear Unit
Removal
(1)
Remove the Joint #1 motor unit.
Reference: 9.1 Replacing Joint #1 Motor “Removal procedure”
For T6-B, remove the Joint #1 motor and the reduction gear units from the flange.
(2)
T3
-B:
Remove the reduction gear units from the Joint #1
flange.
T3-B: 10-M3×20
Flange
Reduction
gear unit
T3-B