Epson T-B Series Maintenance Manual page 90

T3-B T6-B Maintenance 10. Joint #2
(5) Secure temporarily the Joint #2 motor unit to Arm
NOTE

(6) Perform an alignment of the reduction gear units.
(7) Tighten the motor mounting screws which secured temporarily to secure the motor.
(8) Mount Arm #2 and the reduction gear units to Arm
78
#2.
T3-B: Motor flange mounting screws
3-M4×12+washer
T6-B: Motor mounting screws
4-M4×12+washer
To insert the motor, slowly move the Arm #2 by
hand and push in.
Secure temporarily the screws. Perform an
alignment of the reduction gear units in the next
step.
Make sure that the screw head lightly touches the
flange base
Grab the grease receiver by hand and rotate the
elliptic cam bearing three times clockwise.
Then, rotate three times counterclockwise.
Loosely fasten all bolts in a crisscross pattern so that the bolts will be fastened evenly.
T3-B: Motor flange mounting screws 3-M4×10
T6-B: Motor mounting screws 4-M4×12
Then, using a torque wrench, tighten each bolt securely in a crisscross pattern at the
torque specified below.
Tightening torque: 4 ± 0.2 N·m
#1.
Mount the O-ring (between the reduction gear units
and Arm #1).
Replace O-ring to new one if there is swelling,
scratch, or wear.
T3-B
Joint #2 motor
unit
T6-B
Joint #2
motor unit
Grease receive
Arm #2
T-B series Maintenance Manual Rev.1
Joint #2
motor unit
Reduction
Gear Unit
O Ring
Arm #1
A B