Doosan DX60R Shop Manual page 319

• Method B: Use a feeler gauge to measure the
clearance (3, Figure 185) between the thrust bearing
(1, Figure 185) and crankshaft (2, Figure 185).
Record the measurement. See "Thrust Bearing" on
page -98 for the service limit.
4. Remove the main bearing caps (3, Figure 186). Be sure to
note the markings on the main bearing caps, or mark them
yourself, so they can be reinstalled in the same order as
they were removed. Do not remove the bearing inserts at
this time.
NOTE:
The "arrows" on the main bearing caps point to
the flywheel end of the engine.
5. Measure bearing oil clearance prior to removing the
crankshaft to determine extent of wear. Record the
measurements.
A. Wipe oil from the bearing insert andcrankshaft
journal surfaces.
B. Place a piece of PLASTIGAGE (1, Figure 187) along
the full width of each bearing insert.
Do not rotate
PLASTIGAGE. A false reading may result.
C. Reinstall bearing caps and tighten to specification.
See "Special Torque Chart" on page -101
D. Remove bearing caps.
E. Compare the width of the flattened PLASTIGAGE to
the graduation marks on the package (1, Figure
188). The mark that most closely matches the width
of the flattened PLASTIGAGE will indicate the
bearing oil clearance.
6. Remove the crankshaft from the engine.
7. Remove the bearing inserts (1, Figure 186) and thrust
bearings (2, Figure 186).
NOTE:
Do not remove the crankshaft gear unless the
gear or crankshaft are damaged and require
replacement.
Engine
IMPORTANT
the crankshaft when
Figure 185
Figure 186
using
Figure 187
Figure 188
1
2
3
FG008937
SP001693
Page 139