−
35
−
(1)
(2)
(5)
(4)
(3)
(7)
(6)
(8)
A
B
3-29 Replacing the motor
1) Lossen the setscrews in the handwheel in the order
of No. 2 (2) and No. 1 (1).
2) Remove four setscrews (4) in pulley cover (3) with 4
mm hexagonal wrench key.
3) Remove the pulley cover while taking care of LED
(5) of the synchronizer.
4) Remove the side plate, and loosen coupling
setscrews (8) fixed to the motor shaft in the order of
No. 2 and No. 1.
5) Remove four motor setscrews (7) with 4 mm
hexagonal wrench key.
6-1) Gently draw out the motor, loosen coupling setscrew
(6), and remove the coupling from the motor.
6-2) Insert the coupling with small hole diameter into the
new motor, adjust No. 1 of setscrews (6) to the flat
section and tighten it. At this time, set the clearlance
betweein the motor and the coupling to 0.5 mm.
6-3) Insert the motor into the machine arm, adjust No. 1
of coupling setscrews (8) to the flat section of the
main shaft, and tighten it.
7) After installing the pulley cover, tighten the setscrews
in the order of No. 1 and No. 2 at the position where
a clearance of approximately 1 mm is provided
between the handwheel and the pulley cover.
(Caution) There is the release section A in the shaft
section of encoder case B located in the
rear of the motor.
If the handwheel is held removed, dust
enters from this section and damages the
sensor section. As a result, malfunction
of the motor may result.
When replacing the motor, take care not
to allow dust to enter from the handwheel
section, and quickly install the handwheel.
When storing the motor itself for a long
period of time, install the encoder cover
(installed at the time of delivery of motor).
3-30 Replacing the timing belt
*
Timing belt (23607302) is not necessary to replace unless a special trouble occtrs since the best quality
product is used.
1) Perform removing/installing of the motor referring to [3-29 Replacing the motor].
When there is no trouble with the motor, however, loosen coupling setscrew (6) without loosening setscrew
(8) , and remove the motor with couping attached.