SWITCH 7I2444 - Caterpillar

Grease Path Rework
Note: If required, machine grease path as shown after welding bore and face. See Illustration 11 for detail view and Illustration 12 for orientation of detail view.
Illustration 11 g03665394
Table 3
Grease Path Dimensions and Acceptable Tolerances    
Callout     Dimensions    
(A)     Ø
8.737 + 0.15 mm - 0.08 mm (0.344 + 0.006 inch - 0.003 inch)    
(B)     Ø
8.737 + 0.15 mm - 0.08 mm (0.344 + 0.006 inch - 0.003 inch)
19.050 0.508 mm (.75 0.020 inch) DEEP
1/8 - 27 NPSF THD
7.874 0.508 mm (.31 0.020 inch) MIN. DEEP    
(C)    
162.052 0.508 mm (6.38 0.020 inch)    
(D)     Seal hole on outside diameter using plug/slot weld at specified depth of
6.350 mm (0.25 inch)    
(E)    
31.750 0.508 mm (1.25 0.020 inch)    
(F)    
12.700 0.508 mm (.50 0.020 inch)    
(G)    
9.385 0.025 mm (.3695 0.0010 inch)    
(H)     Ø
8.737 + 0.15 mm - 0.08 mm (0.344 + 0.006 inch - 0.003 inch)
169.926 0.508 mm (6.69 0.020 inch) DEEP    
(J)    
95.250 0.508 mm (3.75 0.020 inch)    Bore Finishing
Illustration 12 g03659113
Table 4
Dimensions and Acceptable Tolerances    
Callout     Dimensions    
(A) (1)     Ø
151.82 0.03 mm (5.977 0.0012 inch)    
(B)     3.5 micrometers
Surface texture / Roughness Average (Ra) for face and bore    
(C)     15°
Chamfer    
(D)    
2.286 mm (0.09 inch) Chamfer Depth    
(E)    
450.85 1.5 mm (17.75 0.06 inch)    
(F)    
1161.491 0.127 mm (45.728 0.005 inch)    
(G)    
698.50 1.524 mm (27.50 0.06 inch)    
(H)    
349.25 1.524 mm (13.75 0.06 inch)    
(J)    
732.917 1.524 mm (28.855 0.06 inch)
Two Holes    
(K)     Install 4B-9782 Ball prior to finish machining.    
(L)    
5.08 mm (0.20 inch) Max Radius    
(M)    
129.387 0.254 mm (5.094 0.010 inch)    
(N)    
538.226 0.0762 mm (21.190 0.003 inch)    
(P)    
580.75 0.254 mm (22.864 0.01 inch)    
(Q)    
269.113 1.524 mm (10.595 0.06 inch)
Two Holes    
(R)     Profile after machining.    
(S)    
1.524 mm (0.06 inch) C/R MAX    
( 1 ) Bore / Holes inline shall be held together with a true position of Ø 0.1524 mm (0.006 inch)Set up the boring bar and run rough cuts of the bore. If there is chatter during the cutting operation, the chatter is likely the result of a bore set-up that is not rigid. The chatter can also be an unsupported distance between the bearings that stabilize the boring bar. Be sure to eliminate chatter before performing the final bore. All dimensions and tolerances are located in Table 4.
Machine the bore to the specified diameter.
Machine the faces.
Machine the chamfer.