Epson LS3-401 series

Maintenance 8. Arm #4
134 LS Rev.10
(5)
Apply the proper tension to the U1 belt,
and then secure the Joint #4 intermediate
shaft unit.
P
ass a suitable cord or string around the
Joint #
4 motor unit near its mounting plate.
Then, pull
the cord using a force gauge or
similar tool to apply the
specified tension
shown in the figure on
the right.
U1 belt tension
LS3 = 69 N (7.0 ± 0.5 kgf)
LS6 (a) = 69 N (7.0 ± 0.5 kgf)
LS6 (b) = 102 N (10.4 ± 0.5 kgf)
3-M4×12
+ Washer
Force Gauge
Joint #4
Motor Unit
To
check belt tension with the tension meter, refer to Maintenance: 8.4 Checking the
Timing Belt Tension
(U1, U2 Belts).
(6)
Connect the connector X241, X41.
(
7)
Bind
the cables with a wire tie in their original position as before removed in the
removal
step (5).
(8
)
Remove the User Plate.
For details, refer to
Maintenance: 3.5 User Plate.
(9
)
Install the
Arm Top Cover.
For details,
refer to Maintenance: 3.1 Arm Top Cover.
(10
)
Execute the calibration of Joint #4.
For details, refer to
Maintenance: 13. Calibration.

NOTE