Doosan P158LE -III, Operation & Maintenance Manual

Page: 156 / 165

Appendix - 153 -
z Tightening torque for plug screw
Items Specifications Remarks
Cylinder
block
Inside dia. of liner forced in joint part (upper part)
Inside dia. of liner forced in joint part (lower part)
Inside dia. of liner color forced in part
Liner colored surface depth 145.800 ~ 145.840
144.500 ~ 144.540
153.900 ~ 154.150
9.97 ~ 9.99
145.8 H7
144.5 H7
153.9 H11
Cylinder
liner
Outside dia.of liner forced in joint part(upper)
Outside dia. of liner forced in joint part(lower)
Outside dia. of liner color part
Liner collar height
Liner forced in joint part (upper)
Liner forced in joint part (lower)
Liner collar part clearance
Inside dia. of liner
Liner’s roundness & columness (upper)
Liner’s roundness & columness (lower)
Liner’s projection
145.741 ~ 145.786
144.432 ~ 144.457
153.65 ~ 153.75
10.03 ~ 10.05
0.014 ~ 0.099
0.043 ~ 0.108
0.150 ~ 0.500
127.990 ~ 128.010
0.01
0.015
0.04 ~ 0.08
145.8 g6
144.5 f6
153.8
128 ± 0.01
from top up to 168 mm
from bottom up to
85 mm
measure at 4 place
Piston
Outside diameter of piston
Inside diameter of piston pin
Max. allowable weight per engine
1st ring groove width
2nd ring groove width
Oil ring home width
127.739 ~ 127.757
46.003 ~ 46.009
50 g
3.5
3.040 ~ 3.060
4.020 ~ 4.040
measure 71.5 mm part
from bottom (long length)
Piston
ring
1st ring height (thickness)
2nd ring height (thickness)
Oil ring height (thickness)
1st ring axial direction clearance
2nd ring axial direction clearance
Oil ring axial direction clearance
1st ring end part clearance
2nd ring end part clearance
Oil ring end part clearance 3.5
2.978 ~ 2.990
3.97 ~ 3.99
–
0.050 ~ 0.082
0.030 ~ 0.070
0.35 ~ 0.55
0.40 ~ 0.60
0.40 ~ 0.70
Piston pin
Piston pin’s outside diameter
Clearance between piston pin & pin hole 45.994 ~ 46.000
0.003 ~ 0.015