Maintenance 7. Joint #3
11
4 LS20-B Rev.4
Push down the shaft to its lower limit while pressing the brake release switch. Be sure
to keep enough space and prevent
the end effector hitting any peripheral equipment.
The brake release switch is applied to both Joints #3
and Joint #4.
When the brake release switch is pressed, the respective brakes of the Joint #3 and Joint
#4 are released simultaneously.
Be careful of the
shaft falling and rotating while the brake release switch is
the shaft may be lowered by the weight of an end effector.
Arm Top Cover.
For details, refer to Maintenance: 3.1 Arm Top Cover.
sheet bundling the motor cables.
Cut off the wire tie fixing the
cables to the belt tensioner.
o not cut the wire tie (in the duct fittings outlet) that binds the cables to the duct
will be used again. Be careful not to lose them.
Clip Band
Wire Tie
Duct Plate
Silicon Sheet
Clip Band
Duct Plate
User Plate
Belt Tensioner
Disconnect the following connectors
.
Connectors: X231, X43 (Hold the clip to remove.)
and Duct Plate.
For details, refer to Maintenance: 3. Covers.
Remove the screws for the Joint #3 motor
unit and pull out the
Joint #3 motor unit.
The washers for slotted holes will be used
again when installing the Z belt.
Be
not to lose them.
Joint #3
Motor Unit
3-M5×20
+ washer fo
r
s
lotted hole