Chapter 7 Maintenance and Inspection
37
For the right angle input type
Perform steps 1 to 9 by taking care regarding the following precautions.
• The reduction gear main unit is separated from the right angle input unit internally. Fill the lubricant
into the reduction gear main unit using the tapped holes “A” and “B” for injecting/draining grease and
into the right angle input unit using the tapped holes “C” and “D” for injecting/draining grease.
Step 1
• Rotate and position the output shaft of the reduction gear so that the tapped holes “A” and “B” for
injecting/draining grease are located 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.)
Step 2
• Turn OFF the power to the device and confirm that the device is completely stopped.
Step 3
• Remove both of the hexagon socket
head cap plugs and other parts from
the tapped holes for
injecting/draining grease, and drain
the lubricant from the lower tapped
hole for injecting/draining grease.
• Check the amount of drained
lubricant by catching it with a
container, etc., in order to control the
same amount of lubricant to be
drained and filled.
• 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.
Step 4
• Attach grease nipples,
etc. and injectors to the
tapped hole “A” or “B”
that is located at the
lower side, and to the
tapped holes “C” or “D”
that is located at the
lower side.
Step 5
• For the straight input
type and pulley input
type, refer to steps 5 to
11 and fill the reduction
gear main unit with new lubricant.
Fig. 7-4
Tapped hole “C” for
injecting/draining grease
Tapped hole “B” for
injecting/draining grease
Tapped hole “D” for
injecting/draining grease
(Drain lubricant.)
Tapped hole “A” for injecting/draining grease
(Drain lubricant.)
Fig. 7-5
Tapped hole “A” for
injecting/draining grease
Tapped hole “B” for
injecting/draining grease
Tapped hole “D” for
injecting/draining
grease
Tapped hole “C” for
injecting/draining
grease
Injector
Injector
Drain
Drain
Inject grease.
Inject grease.