Chapter 7 Reduction and Reversing
Gear
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______________________
3,4]H3(B)(C)E
(1) Visually inspect the sliding surface
ol
thrust collar A
or
8 to
check
for
signs
of
overheating.
scoring,
or
cracks.
Replace
the
collar
if
any
abnormal
condition is
found.
{2)
Measure the thickness
of
thrust collar A
or
B,
and
replace it when the dimension exceeds the specified
limit
t1
t2
i-
Sliding surface Sliding surface
__
r
Thrust collar A Thrust oollar B
mm
Stepped wear
Limit
for
use
Thrust
collar A t 1
0.05
Thrust collar
B,
12
0.20
3-7
Cup
spring and spring retainer
(1}
Check
for cracks and
damage
to
the
cup
spring
and
spring retainer.
Replace the part if defective.
{2)
Measure
the
free
length
of
the
cup
spring
and
the
thickness of the spring retainer. If the length
or
the
thickness deviates
tram
the standard size, replace the
part.
Cup spring
T
Cup spring. T
Spring retainer,T
Spring
retainer,t
Printed in japan
Hl'.\"SHI-H8009
Standard
2.8~3.1
2.92~3.08
--
Spring retainer
-1---!-
L
T
mm
limit
2.6
2.8
0.1
7-43
3-8 Oil seal
of
output
shaft
Vlsually inspect the oil seal
of
the output shaft to check
if
there is any damage
or
oil leakage; replace the seal when
any abnormal condition is
round.
3-9 Input shaft
Ollseal
("/~Rrnla,
bearing
~
1
Sptine
Input
shaft
(1)
Spline part
Whenever uneven
wear
and/or scratches are found,
replace with a
new
part.
(2) Surface of oil seal.
If
the
sealing
surface
of
the
oil
seal
is worn or
scratched, replace.
3-10 Output shaft
Key slot,
1
Helical involute spline
Spline
(1)
Visually
inspect
the
spline
and
the helical
involute
spline, and repair
or
replace a part when
any
abnor-
mal condition is found on its surface.
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