SMC Networks LEY series User manual

Motor Replacement
Product Name
Electric Actuator / Rod Type
Model/Series
LEY Series
Applicable model: LEY*，LEYG*
Document No.: LEY-MM00102
LEY Series
(Rod type) LEYG Series
(Guide rod type)
Maintenance Manual

Revision history
Rev.
symbol Date of change Details of the changes Approved Person in charge Remarks

-2-
Contents
1. How to Replace the Motor (Parallel Mounting Type)………………………..p 3
2. How to Replace the Motor (Straight Type)……………………………………p 5
3. Motor Assembly No. (Order No. for Replacement Motor)………………….p 7

-3-
1. How to Replace the Motor (Parallel Mounting Type)
1-1. Motor Removal Procedure
* Tools required are a hexagon wrench set and a Phillips screwdriver.
1. Remove the cover and grommet. (For motor option "with cover" or "with lock cover" only.)
2. Remove the four screws, then remove the pulley plate.
3. Loosen the motor fixing screws (2 pcs.), then remove the belt and motor.
* For actuator size 32/40, hold the hexagon nuts with a spanner while loosening the screws.
4. Remove the motor cover and the grommet. (For motor option "with lock cover" only.)
Motor cover
Lift the cover hook up
by inserting a suitable
object such as a cable
tie. (Thickness:
Approx. 1.0 mm) Motor cover
Grommet
Grommet
Screw
For size 16/25
Belt
For size 32/40
Screw Belt
Screw
Hexa
g
on nut
Motor cover with lock
Grommet

-4-
1-2. Motor Replacement Procedure
1. Mount the grommet onto the lock cable, then mount the motor cover with lock onto the motor.
(For motor option "with lock cover" only.)
2. Mount the motor with screws (2 pcs.) temporarily to assemble the belt.
* For size 32/40, hold the hexagon nuts with a spanner when tightening the screws.
3. Pull the base of the motor with a cord or a long cable tie.
With a tensile force applied, tighten the screws which secure the motor.
4. Secure the pulley plate using the four screws.
5. Mount the grommet, then mount the motor cover onto the motor.
(For motor option "with cover" or "with lock cover" only.)
Size Replacement
Belt part No. Tensile force (N) Screw size Tightening torque (Nm)
16 LE-D-2-1 10 M2.6 (Step motor)
M2.5 (Servo motor)
M2.6 (Motor with lock)
0.36
25 LE-D-2-2 19 M3 0.63
32/40 LE-D-2-3 30 M4 1.5
Size Screw size Tightening torque
(Nm)
16 M3 0.63
25 M4 1.5
32/40 M6 5.2
For size 16/25
Belt
For size 32/40
Screw
Belt
Screw
Hexa
g
on nut
* For size 32/40, hold the motor side nuts with a spanner, then tighten the
screws.
Screw
Pulley plate
Grommet
Motor cover
Tension adjustment example
Grommet
Lock cable
Motor cover with lock
Tensile force

-5-
2. How to Replace the Motor (Straight Type)
2-1. Motor Removal Procedure
* Tools required are a hexagon wrench set and a Phillips screwdriver.
1. Remove the cover and grommet. (For motor option "with cover" or "with lock cover" only.)
2. Remove the two hexagon set screws. (For size 16/25)
Remove the two screws. (For size 32/40)
3. Remove the two screws which secure the motor and the motor adapter. (For size 16/25 only)
4. Remove the motor cover with lock, cover support and grommet.
(For motor option "with lock cover" only.)
Motor cover
Lift the cover hook up
by inserting a suitable
object such as a cable
tie. (Thickness:
Approx. 1.0 mm)
Grommet
Motor cover
Grommet
For size 16/25 For size 32/40
Screw
Set screw
* If it is difficult to remove the
screw due to adhesion, apply
heat to remove it.
Screw
Motor adapter
Grommet
Cover support
Motor cover with lock

-6-
2-2. Motor Replacement Procedure
1. Mount the grommet onto the lock cable, then mount the motor cover with lock and cover support
onto the motor. (For motor option "with lock cover" only.)
2. Mount the motor and motor adapter with two screws temporarily, then apply the final tightening
torque. (For size 16/25 only)
3. Secure the motor adapter using the two hexagon set screws. (For size 16/25)
Secure the motor using the two screws. For size 32/40
4. Mount the grommet, then mount the motor cover onto the motor.
(For motor option "with cover" or "with lock cover" only.)
Size Screw size Tightening torque
(Nm)
16 M2.6 (Step motor)
M2.5 (Servo motor)
M2.6 (Motor with lock)
0.36
25 M3 0.63
Size Screw size Tightening
torque (Nm)
16 M2.6 (Step motor)
M2.5 (Servo motor)
M2.6 (Motor with lock)
0.63
25 M3 1.5
32/40 M4 1.5
Grommet
Cover support
Motor cover with lock
Lock cable
Screw
Motor adapter
For size 32/40
Screw
Motor cover
Grommet
Set screw
Motor adapter
For size 16/25

-7-
3. Motor Assembly No. (Order No. for Replacement Motor)
3-1. Motor Assembly No. (Parallel Mounting Type)
List of included items
P Step motor (servo 24 VDC)
A Servo motor (24 VDC) For size 16/25 only
16 LEY16/LEYG16
25 LEY25/LEYG25
32 LEY32/40/LEYG32/40
Nil No
B
No. Part name Qty. Remarks
1 Motor with pulley 1
2 Motor mounting
screw 2
3 Hexagon nut 2 For size 32/40 only
ＬＥＹ M R
-
(2) (3)
(1)
-
(2) Size (3) Motor o
p
tion
1
2
3
(1) Motor type

-8-
3-2. Motor Assembly No. (Straight Type)
List of included items
P Step motor (servo 24 VDC )
A Servo motor (24 VDC) For size 16/25 only
16 LEY16/LEYG16
25 LEY25/LEYG25
32 LEY32/40/LEYG32/40
Nil No
B
No. Part name Qty. Remarks
1 Motor with hub 1
2 Motor mounting
screw 2
ＬＥＹ M Ｄ
-
(2) (3)
(1)
-
1
2
(2) Size
(
3
)
Motor o
p
tion
(1) Motor type