Chapter 7 Reduction and Reversing Gear
3. Inspection and Servicing
3-8 Input
shaft
(5)Cap spring
4LHA Series
mm
(in.)
Input
shaft gear
with
torque limiter
Roller
bearing
Input
shaft
Standard
Limit
Cup
spring,
T
3.5-3.8
(0.1378-0.1496)
3.35
(0.1319)
(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) Torque limiter parts.
If the
torque limiter has slipped due
to
excessive
torque,
measure
the
size
of the
inner parts listed
top
right.
If
the parts are excessively damaged replace.
W"
,
W Nut
-Plate
(B)
• Plate
(A)
\
Cup
spring
3-9
Output
shaft
ffll
Iff
Spacer
>—
Cup spring
TJ—
Input
shaft gear
1. Ball bearing
Snap
ring
(4)Plates
(A) & (B)
Plates
(A) & (B)
will be worn
in
stepped configuration as
shown below. Replace
if the
measurement
is
found
to
be over the wear-limit.
-t
2
(1
(Visually
.
inspect
the
spline,
oil
seal
and
O-ring,
and
repair
or
replace, a part when
any
abnormal condition
is
found on
its
surface.
tr
Plate
(A)
Plate
(B)
mm
(in.;
Stepped
wear
Limit
Q'ty/unit
Plate
(A)
ft, +1,)
0.03
(0.0012)
22
Plate
(B)
(t3+t
4
)
0.03
(0.0012)
23
7-1-14
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