Chapter 5 Installation
20
(1) When the product can be installed as is
Perform steps 1 to 4 by taking care regarding the following precautions.
Step 1
• Align the mounting holes of the reduction gear with the positions of the tapped holes for the case
installation component, and then attach the reduction gear to the specified position.
• When the reduction gear is to be installed in the horizontal shaft position, install the reduction gear so
that the tapped hole for injecting/draining grease is located at the top.
• Confirm that the centering shaft of the reduction gear is correctly fitted into the centering hole of the
case installation component.
• Check that there is no foreign matter adhering to the mounting surface.
If there is foreign matter adhering to the mounting surface, the mounting surface of the reduction gear
may be deformed, which could cause deterioration of performance, such as abnormal noise and
torque irregularity and durability.
Step 2
• Insert the hexagon socket head cap screw into the Belleville spring washer for the hexagon socket
head cap screw.
(Reference: Fig. 4-2 in “4.2.3. Serrated lock washer for hexagon socket head cap screw”)
Step 3
• Tighten the hexagon socket head cap screws equally with the specified bolt tightening torque.
(Reference: Table 5-1 in “5.1.1. Bolt tightening torque”)
If the hexagon socket head cap screw is not tightened with the specified torque, the reduction gear
does not deliver the designed performance. In addition, it could cause injury and damage to the
customer’s device and the reduction gear.
Note
Fig. 5-2
Serrated lock
washer
Tapped hole for
injecting/draining grease
Hexagon socket head cap screw
Reduction
gear
Case installation
component
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