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Doosan DP158LDF - Page 135

Doosan DP158LDF
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10. Cylinder block/head
176
DV2213123A
3. Squareness of valve spring: Measure the sequareness
o
f the valve spring with the surface plate and t
he
r
ight-angle square. If the reading exceeds the toler-
ance limit, replace the valve spring.
DV2213124A_E
4. Tension of valve spring: Measure the tension of a
v
alve spring by using a spring tester. If the readin
g
i
s below the tolerance limit, replace the valve spring.
DV2213125A_E
Item Standard
Squareness of valve spring Below 1.0mm
Item Standard
Inside at weight condition 15~17kg 46.3mm
Outside at weight condition 37~41kg 46.3mm
Squareness
Squareness
Free length
tape
Spring tester

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