PLATE-SIDE 5407299 - Caterpillar

Illustration 16 g02761196
Area C-1 "Method of setting backing plate" (19) Backing plate (ss400) (20) Wire (21) Track roller
Eliminate the crack by gouging out a beveled angle greater than 60° (10). Use a pencil grinder to gouge out the crack. Grind through the leg plate a maximum of 4mm in diameter. Refer to Illustration 15.
Add the backing plate (19). Refer to Illustration 15. One method for setting the backing plate (19) is shown in Illustration 16. Remove the track roller (21), if necessary.
Weld the gouged out groove (11). Tie-in to all of the plates with the proper weld penetration. Refer to Illustration 15.
Grind the weld toe (R5 min.) after the weld has cooled (12). Refer to Illustration 15.C-2 Installation of the Reinforcement Plate
Illustration 17 g03128923
(A) 332.4 mm (13.1 inch) (B) 280 mm (11.0 inch) (C) 140.6mm (5.5 inch) (D) 137.6mm (6.6 inch) (E) 136.5 mm (5.4 inch) (F) 7 mm (.3 inch) (G) 228.9 mm (9.0 inch) (H) 139.3 mm (5.5 inch) (I) 106.8 mm (4.2 inch) (J) 6 mm (.2 inch) (K) 130 degrees (L) 6 mm (.2 inch )Radius
Fabricate the reinforcement plates. Manufacture four plates from mild steel plate with a yield strength of 290 MPa (42000 psi). The dimensions for reinforcement plates are shown in this step. Refer to Illustration 17 for the manufacturing view.
Illustration 18 g03130722
Typical frame assembly (M) 325D/329D 740 mm (29.1 inch) (M) 325DL/329DL 810 mm (31.9 inch) (N) 325D/329D 730 mm (28.7 inch) (N) 325DL/329DL 790 mm (31.1 inch)
Illustration 19 g03131416
(X) Extend the weld about 20 mm (0.8 inch) to 30 mm (1.2 inch)
Add reinforcement plates on the idler end of the frame assembly, and on the motor end of the frame assembly. The dimensions for locating the plates and the welds are shown in Illustration 18.
Weld the reinforcement plate in accordance with Illustration 19.
Gradually decrease the weld leg length and join to an existing welding in the area marked X. Plug the gap of the area marked Y by welding. Grind the area smooth that is marked X.Area D
D-1 TRF (body plate) Crack from the Weld Root
Illustration 20 g02762357
Area D-1 crack point (17) TRF (body plate) (22) Crack point (23) Set plate (25) Inside
Illustration 21 g02762957
Area D-1 repair procedure (10) Gouge out more than 60° (11) Weld gouged groove (12) Grind weld toe (23) Set plate (24) Fillet weld (25) Inside
Eliminate the crack by gouging out a beveled angle greater than 60° (10). Use a pencil grinder to gouge out the crack. Refer to Illustration 21.
Weld the gouged out groove (11). Tie-in to each plate with the proper weld penetration. Refer to Illustration 21.
If the inside (25) of the TRF is accessible, add a fillet weld (24). Refer to Illustration 21.
Grind the weld toe (R5 min.) after the weld has cooled (12). Refer to Illustration 15.D-2 TRF (body plate) Crack on the Weld Toe
Illustration 22 g02763360
Area D-2 crack point (17) TRF (body plate) (23) Set plate (25) Inside (26) Crack point
Illustration 23 g02763884
Area D-2 repair procedure (10) Gouge out more than 60° (11) Weld gouged groove (12) Grind weld