Doosan DP222LCS - Tappet and Push Rod; Tappet Clearance; Visual Inspection of Tappet; Warpage of Push Rod

10. Cylinder block/head
160
Tappet and push rod
Tappet Clearance
Measure the outer diameter of a tappet and the inner diam-
eter of the tappet bore. If the reading exceeds the tolerance
limit, replace the tappet.
Visual inspection of tappet
Inspection if the tappet surface which contacts the camshaft
has damage like crack or scratch. If the damage is small,
correct it with oil stone or fine grinding paper, if excessive,
replace it.
DV2213128A_E
Warpage of Push Rod
Put the push rod on a surface plate, and measure the
warpage with a feeler gauge shile spinning it. If the reading
exceeds the tolerance limit, replace it.
DV2213129A_E
Standard Limit
0.035mm ~ 0.077mm 0.25mm
Limit Below 0.3mm
normal
abnormal
abnormal
abnormal
abnormal
(crack)
(irregularity)
Feeler gauge