Komatsu SAA6D140E-3 User Manual

11-28
140-3 SERIES
STRUCTURE AND FUNCTION, MAINTENANCE STANDARD CRANKSHAFT
CRANKSHAFT
Unit: mm
No. Check item Criteria Remedy
1 End play
Standard size Repair limit Repair by using over
size thrust bearing or
replace
0.140 – 0.315 0.50
2
Outside diameter of main
journal
Stan-
dard size
Toler-
ance
Repair
limit
Repair by using over
size bearing or replace
STD 120.00
–0.050
–0.068
119.88
0.25 U.S. 119.75 119.63
0.50 U.S. 119.50 119.38
0.75 U.S. 119.25 119.13
1.00 U.S. 119.00 118.88
Roundness of main journal
Standard size Repair limit
0 – 0.009 0.020
Clearance of main journal
Standard clearance Clearance limit
Replace main bearing
0.044 – 0.106 0.27
3
Outside diameter of crank
pin journal
Stan-
dard size
Toler-
ance
Repair
limit
Repair by using under
size bearing or replace
STD 90.00
–0.050
–0.068
89.88
0.25 U.S. 89.75 89.63
0.50 U.S. 89.50 89.38
0.75 U.S. 89.25 89.13
1.00 U.S. 89.00 88.88
Roundness of crank pin
journal
Standard size Repair limit
0 – 0.009 0.020
Clearance of crank pin
journal
Standard clearance Clearance limit
Replace connecting
rod bearing
0.042 – 0.110 0.24
4 Bend of crankshaft
Standard size Repair limit
Repair by using under
size bearing or replace
Coaxiality of all main
journals: Max. 0.150
0.20
Coaxiality of
neighboring journals:
Max. 0.050
0.10

Komatsu SAA6D140E-3 Specifications

General

Brand	Komatsu
Model	SAA6D140E-3
Category	Engine
Language	English