Chapter 5 Installation
17
Step 2
• Align the tapped holes of the reduction gear with the positions of the mounting holes for the
component on the rotation side. Then attach the reduction gear to the specified position.
• Confirm that the centering shaft of the reduction gear is correctly fitted into the centering hole of
the component on the rotation side.
• Check that there is no foreign matter adhering to the mounting surface.
• Using the hexagon socket head cap screw and serrated lock washer for a hexagon socket head cap
screw, tighten each component.
• Tighten the hexagon socket head cap screws equally with the specified bolt tightening torque. (For
the bolt tightening torque, refer to Table 5-1.)
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.
When installing the component on the rotation side, take extra care not to cover the tapped holes for
injecting/draining grease. If the tapped holes are covered, it will be difficult to replace the lubricant.
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. 5-3
Hexagon socket
head cap screw
Serrated lock
washer
Component on
rotation side
Opening for draining grease on
component on rotation side
Centering hole of component on rotation side
Centering shaft of reduction gear output flange
Reduction gear’s tapped hole
for injecting/draining grease
