Epson LS20-B Series

Maintenance 8. Joint #4
LS20-B Rev.4 127
Joint #4 motor
Installation
(1)
Mount the Joint #4 motor on
the motor plate.
Before you mount
the motor, make sure that the
brake harness
passes through a gap of the motor
plate.
2-M4×70
Joint #4 Motor
Motor Plate
When mounting
the motor, be careful not to catch the brake harness in the space
between
the motor plate and Joint #4 motor.
After the motor is mounted, bind
the
brake harness with a wire tie and fix it on the motor.
Correct Example Wrong Example
(a)
(b)
(c)
(d)
(a) The brake harness is fixed to the motor with
the attached wire tie.
(b) The brake harness is not come out.
(c) The brake harness is not fixed to the motor.
(d) The brake harness is come out.
(2)
Mount the
extension shaft on the Joint #4 motor
unit
while aligning the hub of the extension shaft to
the brake disc.
Tighten one of the set screws vertically on the flat
face of the
extension shaft.
Insert a bushing into the other set screw hole to
preven
t damage to the extension shaft.
M3×5 Set Screw
+ M3 Bushing
Extension Shaft
M3×5
Set Screw
When the brake disc is not aligned, manually adjust the position by following the
steps
below.
1. Connect the connector: BR4.
2. Press the brake release switch to release the brake.
3. Manually adjust the brake disc so that the hole will be at the center.
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