Chapter 5 Installation
34
• Attach an oil seal and plugs for the tapped
Step 4
holes for injecting/draining grease to the case
installation component.
• Align the mounting holes of the reduction
gear (case section) with the positions of the
mounting holes for the case installation
component, and then attach the case
installation component to the reduction gear.
• Take extra care so that the O-ring is not
caught by the mating section.
• 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 the O-ring is caught by the mating section, it could cause leakage of the lubricant.
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 shaft installation component may differ from the illustration above, depending on
the customer’s equipment or shape of the reduction gear. The installation orientation and necessity
for installing the deep groove ball bearing, oil seal, and plugs for tapped holes for injecting/draining
grease should be determined depending on the customer's equipment.
• Using the hexagon socket head cap
Step 5
screw and serrated lock washer for the
hexagon socket head cap screw,
tighten each component.
• Be sure to tighten the hexagon socket
head cap screw with the specified
tightening torque.
• Attach the deep groove ball bearing
for supporting the input gear to the
case installation component.
• Check that there is no foreign matter
adhering to the mounting surface .
(Reference: “4.2.3. Reduction gear
mounting bolts”, “4.2.4. Serrated lock washer for hexagon socket head cap screw”, and “5.1. Bolt
tightening torque”)
Note
Fig. 5-16
Plug for tapped hole for injecting/draining grease
Case installation component
Reduction gear
M
a
tin
g
se
ct
io
n
o
f
re
d
u
ct
io
n
g
e
a
r
(sh
a
ft
s
id
e)
M
a
tin
g
se
ct
io
n
o
f
ca
se
in
st
al
la
tio
n
co
m
p
o
n
e
n
t
(h
o
le
s
id
e
)
Oil seal
Fig. 5-17
Serrated lock
washer
Hexagon socket
head cap screw
Deep groove
ball bearing
Case installation
component
Reduction gear
