ADAPTER 7Y2120 - Caterpillar

Illustration 1 g03408140
Table 1
Specification for 189-4917 Crankshaft Gp    
Item     Qty     Part     Specification Description    
Refer to Specifications, "Connecting Rod and Main Bearing Journals" for more information about the crankshaft journals.    
For the correct procedure of measuring for a bent crankshaft, refer to the Guideline for Reusable Parts and Salvage Operations, SEBF8054, "Procedure to Measure and Straighten Bent Crankshafts".    
1     2     253-1752 Thrust Plate     Install the thrust plates on the center main bearing journal of the crankshaft only.    
A     1     4N-0684 Dowel     Maximum protrusion of the dowel from the face of the crankshaft is 6.4 mm (0.25 inch).    
2     1     223-9135 Crankshaft Gear     Average diameter of the crankshaft gear after assembly is
220.34 0.19 mm (8.675 0.007 inch).
Maximum diameter of the crankshaft gear after assembly is
220.56 mm (8.683 inch).    
B    
D     The measurement for end play with thrust washers installed are listed below. The end play must fall on or between the measurements that are listed below.
Minimum :
0.11 mm (0.004 inch)
Maximum :
0.57 mm (0.022 inch)    
Illustration 2 g03408141
View C-C
Table 2
Specification for 189-4917 Crankshaft Gp    
E     1     7S-5005 Dowel     Protrusion of the dowel from the surface of the crankshaft is
4.1 0.5 mm (0.16 0.02 inch).