SMC Networks LEF Series Maintenance Manual

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Part to be
tightened
Models
Screw
Tightening torque
+/- 10% [Nm]
Type
Size
Qty.
(9) Motor
assembly
LEFB16T-∗
(8) Hexagon socket
head cap screw
M2.6x20
2
0.36
LEFB16AT-∗
M2.5x20
LEFB25∗T-∗
M3x35
0.63
LEFB32T-∗
M4x12
4
1.5
LEFB32T-∗B
M4x55
2
LEFB25∗(S/T/V)∗S-∗∗
M4x12
LEFB32∗(S/T/V)∗S-∗∗
M5x15
4 3
LEFB40∗(S/T/V)∗S-∗∗
M5x15
7-3. To refit the dust seal band, mount the belt in reversed order of 7-1 to 7-2.
Points to be
Noted for Assembly
Caution 1): Before tightening the screw (8), move the table after temporarily
tightening the screw (8) and confirm that the motor can rotates smoothly.
If there is a play of the motor assembly, insert the motor assembly correctly
to the spider.
Caution 2): Adjust the belt tension to the recommended value of SMC
(Refer to the Chapter 5 LEFB Belt Tension Adjustment)
Caution 3): For AC servo motor, refer to the drawing below for the wiring of the cable
during mounting the motor cover.
Caution 4): Dispose of the used screws. For new screws without adhesive, apply
Loctite 262.
For the replacement of the motor assembly, order the parts referring to the spare parts
list in the attachment.
Table.7-3 Motor assembly fixing screws
Encoder cable
Motor cable

SMC Networks LEF Series Specifications

General

Brand	SMC Networks
Model	LEF Series
Category	Controller
Language	English