Chapter 5
Installation
21
A liquid sealant may have been used in the area between the motor flange and reduction gear main
unit (middle flange). Due to the effect of the liquid sealant, it may not be possible to remove the
motor flange easily only by removing the screws. In such a case, make a cut in the coating on the
bonded surface using a cutter knife, etc., while taking care not to scratch the coating. Then, lightly
tap the motor flange using a tool such as plastic hammer, and then remove the motor flange from
the reduction gear main unit. Applying excessive load could scratch the reduction gear or motor
flange, and eventually cause damage.
Step 2
• With the motor flange removed, incorporate the reduction gear into the customer’s equipment
according to steps 1 to 3 in “(1) When the product can be installed as is”.
Step 3
• If necessary, wipe off the grease adhering to the mounting surface of the motor flange and the
reduction gear, and then use a liquid sealant on this surface.
(Reference: Table 4-2 in “4.2.5 Liquid sealant”)
• Take extra care so that the liquid sealant will not leak into the reduction gear.
• Take extra care so that the liquid sealant will not leak into the mounting bolt section.
• For the detailed coating procedure, follow the instructions given by the manufacturer of the sealant
to be used.
Fig. 5-6
If the leaking liquid sealant is mixed into the reduction gear, it could cause deterioration of
performance, such as abnormal noise, vibration, and torque irregularity. Also, if the liquid sealant
adheres to the lip of the oil seal, it could cause leakage of the lubricant.
If it leaks into the mounting bolt section, it could deteriorate the bolt tightening force, and eventually
result in deterioration of the transmission torque.
Note
Note
To be coated with liquid sealant
