2
-
80
42hW-201601
CHAPTER 2 ENGINE 3015R(h)/3515R(h)/4015R(h)/F36R(h)/F42R(h) TRACTOR
ITEM SPECIFICATION LIMIT
First Ring 0.07 ~ 0.11 -
Second Ring
0.07 ~ 0.11 -
Oil Ring
0.03 ~ 0.07 -
Measure the clearance between piston ring and
ring groove.
•
K20W270A
ITEM SPECIFICATION LIMIT
Piston pin
outer diameter
29.991 ~ 30.0 29.90
pin bush
inside
diameter
30.0 ~ 30.008 30.02
Clearance
0 ~ 0.017 0.12
If it wears or uneven wear is over the limit, replace it.•
K20W271A
ITEM SPECIFICATION LIMIT
Twist and
parallel
degree
by 100 mm,
0.05 mm
0.08 mm
Measure the parallel and twist degree of big end
and small end. If the measurement value is over
the limit, replace it.
•
ITEM SPECIFICATION LIMIT
Big end
inside diameter
53.0 ~ 53.019 -
Metal thickness 1.485~1.500 -
Crank pin outer
diameter
49.950 ~ 49.964 49.91
Oil clearance
0.036 ~ 0.095 0.15
Check big end of the connecting rod•
K20W273A
If the measurement value is over the limit,
replace the pin bearing. If necessary, replace the
connecting rod.
•
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