GUARD GP-FAN 2725629 - Caterpillar

Illustration 8 g01142044
The side of the shear with the cutting edge
Build up original shape. Weld in the direction of the grain. Refer to illustration 8. Use a straightedge (A) to check the surface. Refer to illustration 8.Note: The wear tip (B) must be flush with cutting edges (D) .
Illustration 9 g01142055
The side of the shear with the wear plate
Repeat step 5 through 9 for the wear plate (G) side. Weld in the direction of the grain. refer to illustration 9.Note: The wear tip (B) must be flush with the wear plate (G) .Hard Surfacing the Wear Tip
Illustration 10 g01142065
Template
Remove all the debris from the welds. Grind surface (5) .
The procedure for the hard surfacing needs the following items:
Lincoln Wear Shield ME welding rod
ESAB Wear Arc-5 welding rod
Welding materialDIN8555 MF6-55GP
Welding material with chemical composition mentioned in 4
Table 4
C
(%)     Mn
(%)     Si
(%)     Cr
(%)     Mo
(%)     Hardness
Hrc    
0,5-0,8     0,6-1,0     0,6-1,0     4,5-6,5     0,8-1,2     56-61    
Preheat the specific service area to 150 °C (302 °F) to 200 °C (392 °F). Weld a closed bed of beads in surface (5) . Lay one bead lengthwise next to the previous bead.
Weld in the direction of the grain. Refer to illustration 10.
Cool the weld slowly to room temperature. Remove all the debris from the welds.
Use template (Z) in order to check the surface (5) of the upper jaw (C) . Refer to illustration 10 and table 5.
Table 5
Sales Model     Serial Prefix     Template    
S320     CDX1-124     169-7200     197-3841    
, CDX125-UP 219-3162     169-7200    
S325     , CFW1-207     197-4495     197-4494    
, CFW208-UP 219-3164     197-4494    
S340     , CKY1-181     195-0802     195-0804    
, CKY182-249 219-3165     195-0802    
, CKY250-UP 254-5854    
S365     , CLE1-244     197-7842     197-7843    
, CLE245-349 219-3166     197-7843    
, CLE350-UP 254-5853    
S390     , FDK1-344     201-8778     201-8779    
, FDK345-449 219-3259     201-8779    
, FDK450-UP 254-5855    
Place template (Z) along reference surface (8) until template (Z) is even with surface (6) of the nose of the upper jaw (C) . If necessary, grind the nose of the upper jaw (C) until the nose of the upper jaw (C) matches the template.
Unlock the upper jaw (C) . Refer to Operation and Maintenance Manual, "Cutters Inspect/Replace". Carefully close the upper jaw.
Illustration 11 g01142280
checking the fit
Check the fit (H) of the wear tip (B) into the shear housing (K) . Grind the surface, if necessary. Lock the upper jaw (C) in the open position. Refer to Operation and Maintenance Manual, "Cutters Inspect/Replace".
Paint the welded area with primer. Allow the primer to dry completely. Paint the welded area with a final coat of paint. Remove the lock on the upper jaw (C) . Refer to Operations and Maintenance Manual, "Cutters Inspect/Replace".