Chapter 5
Installation
34
Step 3
• Install the input gear on to the motor shaft, and then directly insert the motor into the reduction gear.
At this point, make sure that the motor flange and the motor surface are in close contact without
any tilt.
• Do not forcibly press down on the motor.
• Take extra care so that the gear section of the input gear does not scratch the lip surface of the oil
seal.
• Take extra care so that no scratch will be made on the
gear section due to interference between the input gear
and spur gear.
• For the product with two spur gears, insert the motor so
that the input gear is in the correct position as illustrated
in Fig. 5-22 “Correct built-in position”. Then, confirm
that the motor and flange surface are closely attached
with each other without any tilt. If there is a clearance
between the motor and motor flange surface, the motor
could be in an incorrect position as illustrated in Fig.
5-22 “Incorrect built-in position”. Do not tighten the bolt
to eliminate the clearance.
If the motor is forcibly pressed down, it could damage the input gear, spur gear, and motor.
If the gear section of the input gear scratches the lip surface of the oil seal, it could cause leakage of
the lubricant.
If the gear section is scratched due to interference between the input gear and spur gear, it could
cause abnormal noise.
Note
Fig. 5-23
Input gear
To be coated with
liquid sealant
Fig. 5-22
Correct built-in
position
Incorrect built-in
position
