Chapter 8 Maintenance and inspection
67
• Rotate the output shaft of the reduction gear so that the tapped holes for injecting/draining grease
Step 1
are positioned diagonally.
(When rotating the output shaft using electric power, do not approach the equipment and reduction
gear. When rotating the output shaft without using electric power, perform step 2 first.)
• Turn OFF the power to the device and confirm that the device is completely stopped.
Step 2
• Remove both of the plugs for the tapped holes for injecting/draining grease, and drain the lubricant
Step 3
from the upper tapped hole for injecting/draining grease.
• Always drain the lubricant while the reduction gear is cool.
If a tapped hole for injecting/draining grease is unplugged while the reduction gear is still hot,
high-temperature lubricant sprays out, which could cause burns.
• Attach a grease nipple, etc. to the tapped hole for injecting/draining grease and then attach the
Step 4
injector. (Refer to Fig. 8-2)
• Using the injector or the like, fill the lubricant through the tapped hole for injecting/draining grease
Step 5
on the supply side.
• When filling the lubricant, be sure to remove the plug for tapped hole for injecting/draining grease
on the drain side.
• When pneumatic pressure is used for filling the lubricant, set the pressure below 0.03 MPa.
If you fail to remove the plug for tapped hole for injecting/draining grease on the drain side, the
internal pressure increases. As a result, oil seals could fall off or the oil seal lip could be reversed.
If the internal pressure of the reduction gear increases, oil seals could fall off or lubricant could leak.
• Inject the lubricant until it overflows from the tapped hole for injecting/draining grease on the
Step 6
drain side.
• Remove the injector from the grease nipple and plug the tapped holes for injecting/draining grease
Step 7
on both the greasing and drain sides.
• Rotate the output shaft of the reduction gear by 1 or 2 turns.
Step 8
Note
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