Yaroslavl ???-236, Maintenance Manual

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N
um
be
r o
f t
he
d
ef
ect
L
oc
at
ion o
f
th
e p
ic
tu
re
Possible defect
Way for defect detection and
means of control
Dimension and parameter, mm Conclusion
nominal maximum allowable
without repair for repair
4
Ж
Chipping of the roller at the
working surface
Inspection.
Magnifier ЛП-1-7х
Ø50
+0,039
- - To replace the roller
5
Г
Wear of the bushing surface
for the lifter pin
Inside gauge
18-50
- -
To replace the
bushings
6
И
Loosening of the seating of the
roller axis in the push rod eyes
Inspection of the seating with
the light tapering
of the hammer
- - -
To replace the axis
7
К
Jamming of the roller at the
push rod
Proofing by hand - - -
To replace the
defective parts
8
К
Increase of the total clearance
in the joining roller-bushing-
axis
Facility.
Indicator
ICH02 kl.0
Clearance: -
To reject
0.032…0.064 0.09