Chapter 5
Installation
19
Fig. 5-3
Serrated lock washer
Hexagon socket head cap screw
(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 (or tapped 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.
• Confirm that the centering shaft of the reduction gear (case section) 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.
The shape of the reduction gear may differ from the illustration
depending on the ordered specifications.
Step 2
• Fit the serrated lock washer for the hexagon socket head cap screw through 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 Bolt tightening torque”)
If the hexagon socket head cap screws are 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
Reduction gear
Case installation
component
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ct
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f
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o
m
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s
co
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o
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(F
ix
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si
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(F
ix
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id
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