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Doosan DV11 - Bearing Oil Clearance; Journal and Connecting Bearing Inspection

Doosan DV11
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DV11
Operation and Maintenance
83
Measurement and Inspection of Major Parts
Printed in Mar. 2005 PS-MMA0608-E1A
z Assemble the bearing at the
bigger end of connecting rod
(bigger end) tightening the
bearing cap at the specified
torque, measure the inside
diameter.
Torque 10 kg.m + 90
O
Connecting rod
bearing
nominal diameter
φ89.98 φ90.00 mm
b) Bearing oil clearance
z Compare the two values obtained through measurement of bearing inside
diameter (journal bearing, connecting rod bearing) with the outside diameter of
journal and pin of crankshaft to determine the 0il clearance
Standard Limit
Journal
bearing
0.066 0.132 mm
0.166 mm
Connecting
rod bearing
0.054 0.116 mm
0.154 mm
z In case that this clearance value exceeds the limit value, grind the crankshaft
journal and pin and then use the undersized bearing.
c) Journal and connecting bearing inspection
z Check to see that the bearing
requires a considerable amount
of finger pressure at reassembly
operation.
Section A-B

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