ENGINE REPAIR (Cont'd)
Crankshaft Service (Cont'd)
Check the connecting rod journals [A).
The specifications are 1.7307-1.7313 inches
(43,
959-43
,975 mm). The wear limit is 0.0079 inch (0,2
mm).
A
If the connecting rod joumals are not within specifications
grind the joumals as
follows [B]. B
a.
Crankshaft corner radius must be 0.127R inch ±
.0079 inch (3,5R ± 0,2 mm).
b.
The oil hole must be chamfered to 0.
0394-0
.0591 R
inch
(1,0--1,5R mm).
Install the crankshaft and check the end play [e).
Normal end play is 0.0059-0.0122 inch (0,
15-0
,
31
mm).
Replace the thrust bearings on the main bearing if end
play exceeds 0.020 inch (0,5 mm).
Cylinder Liner Service
Check the inside diameter of the cylinder liner [0).
The tools listed will be used for the following procedure:
MEL
1060 - Ridge Reamer
MEL
1180 - Dry Liner Puller
Revised Sept.
90
D
-7C-33-
o
A-02716
llL---.J1
A~
A-02716
741, 742, 743,
7430S
Bobcat Loader
Service Manual
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