SHAFT 0820920 - Caterpillar

Before and during welding the tooth holder into position, preheat the welding surfaces to 150° C (302° F) to 200° C (392° F).Positioning of the Tooth Holder
Illustration 17 g02195657
Upper Jaw (typical example)
Position the tooth holder in line with the upper. Refer to Illustration 17 and Table 11 for dimensions.Note: Build up the tooth holder contact surface of the lower jaw when the dimension (PP) is not practicable after the worn tooth holder is removed.
Tack weld the tooth holder onto the upper jaw.Note: Use the following welding materials in order to weld the tooth holder onto the upper jaw AWS A5.28 ER100S-I.
Table 11
   PP/VTK Jaw    PS/VTP Jaw    
Model     PP (mm).     PP (mm).    
MP15/VT-30    
858 2 mm (34 0.08inch)    
795.5 mm (31 inch)    
MP20/VT-40    
936 mm (37inch)    
935 mm (37 inch)    
MP30/VT-50     -    
1125 mm (44 inch)    
MP40/VT-60     -    
1340.5 mm (53 inch)    
Illustration 18 g02199697
PP/VTK Jaw (MP15/VT-30, MP20/VT-40
Illustration 19 g02195736
PS/ VTP Jaw (MP15/ VT-30, MP20/ VT-40, MP30/ VT-50, MP40/ VT-60)
Weld the tooth holder onto the upper jaw. Refer to Illustration 19 and Table 12 for welding dimensions.Note: Weld in a pass sequence that builds up the deposit equally on each side of the joint. This type of weld will keep the original shape of the upper jaw.
Table 12
PP/VTK Jaw Model     T (mm)     X(mm))     Y (mm)        
MP15/VT-30    
18 mm (0.70 inch)     -     -        
MP20/VT-40    
23 mm (1.0 inch)    
23 mm (1.0 inch)    
23 mm (1.0 inch)        
PS/VTKP Jaw Model     TT (mm)     XX(mm))     YY(mm)     ZZ(mm)    
MP15/VT-30    
9 mm (0.40 inch)    
20 mm (0.80 inch)    
1.5 mm (0.06 inch)
20 mm (0.80 inch)    
15 mm (0.60 inch)    
MP20/VT-40    
12 mm (0.50 inch)    
25 mm (1.0 inch)    
1.5 mm (0.06 inch)
12 mm (0.50 inch)    
16 mm (0.60 inch)    
MP30/VT-50    
12 mm (0.50 inch)    
20 mm (0.80 inch)    
1.5 mm (0.06 inch)
12 mm (0.5 inch)    
15 mm (0.50 inch)    
MP40/VT-60    
14 mm (0.50 inch)    
30 mm (1.0 inch)    
1.5 mm (0.06 inch)
15 mm (0.6 inch)    
28 mm (1.0 inch)    
Apply hard surfacing to the upper jaw.