FORK A 0533929 - Caterpillar

Illustration 9 g03521166
(Q) 113-5127 Plate (R) Bolt pocket.
Illustration 10 g03521259
(Q) 113-5127 Plate removed.
Illustration 11 g03521277
Remove crack from bottom side by gouging and grinding. Included angle should be approximately 70 °.
Illustration 12 g03521283
Weld 16 mm (0.629 inch) fillet to contour shown.
Illustration 13 g03521323
Remove crack from top side by gouging and grinding. Included angle should be approximately 70 °. Ensure that the root of the opposite weld is removed.
Illustration 14 g03521331
Weld groove created and grind surface to parent material profile. This is critical in the areas where the bolts are located. UT inspect weld repair if possible to ensure good quality of the welds.
Illustration 15 g03521361
Weld 6 mm (0.236 inch) fillet to contour shown. (Q) Locate 113-5127 Plate if removed and weld. (S) 100 mm (3.937 inch)Repair Procedure for Fabricated Parts
Illustration 16 g03521478
After the cracks are repaired, add (T) "Plate" behind 113-5127 Plate and (U) "Block" between 113-5127 Plate and 113-5123 U Channel bracket. The (U) "Block" will replace the two spacers. It is recommended to have the (T) "Plate" and (U) "Block" on both side of the frame regardless whether the other side has crack or not. (Q) 113-5127 Plate (T) "Plate" fabricated. (U) "Block" fabricated. (V) 113-5123 U Channel bracket.Repair Procedure cont.
Illustration 17 g03521902
(N) Scribe line. (P) Locate 260-8749 Plate and weld. WELD MUST TERMINATE 10 mm (0.393 inch) OR LESS FROM THE END OF PLATE. (W) 25 mm (0.984 inch) (X) 34.5 mm (1.358 inch) (Y) 62 °FLEET PREVENTIVE MEASURE CONSIDERATIONS
Illustration 18 g03522080
If machine is part of a fleet of similarly configured machines in same application, then for other machines, as a preventative measure:
Add an 8 mm (0.314 inch) fillet weld to the inboard side of the axle mount plates.
Increase fillet weld size to 16 mm (0.629 inch) along the rear side of the axle mount plates.
Refer to Repair Procedure for Fabricated Parts for procedure. Add (T) "Plate" behind axle mount gusset, (Q) 113-5127 Plate and (U) "Block" between (Q) 113-5127 Plate and (V) 113-5123 U Channel bracket to increase overall stiffness in the region.
Additional counterweight 700 kg (1543.234 lb) per 235-5987 Counterweight can be considered to better balance the machine in carry-on positions. Machines fitted with larger than standard bucket and standard counterweight 253-9352 Counterweight , consider replacing with casting counterweight, 234-3096 Counterweight , which will provide additional 700 kg (1543.234 lb) weight at the rear end and improve stability.