CONTROLLER AS 1388585 - Caterpillar

Required Parts
Table 1
Required Parts for 345-3312 Bucket and Adjuster Gp
Item Qty Part Number Description
1 1 549-3121 Plate
2 1 549-3116 Plate
Table 2
Required Parts for 366-8914 Severe Service Rock Bucket As
Item Qty Part Number Description
3 1 549-3117 Plate
4 1 549-3120 Plate Rework Procedure
Note: If any cracks are found associated to the bucket hinge assembly, gouge the cracks out completely and reweld 100 percent before installing the doubler plates.
Grind off all paint and clean the inside surface of each hinge before welding.
Illustration 17 g06253248
345-3312 Bucket and Adjuster Gp
(1) 549-3121 Plate
(2) 549-3116 Plate
Tack weld Plate (1) and Plate (2) on 345-3312 Bucket and Adjuster Gp as shown in Illustration 17.
Illustration 18 g06253266
View of hinge and left-hand plate on 345-3312 Bucket and Adjuster Gp
(1) 549-3121 Plate
(W1) 20 mm (0.8 inch) Bevel weld
(W2) 16 mm (0.6 inch) Fillet weld
(W3) 20 mm (0.8 inch) Bevel weld
(W4) 16 mm (0.6 inch) Bevel weld
(W5) 20 mm (0.8 inch) V-groove weld
(D1) 20 mm (0.8 inch)
(D2) 20 mm (0.8 inch)
Illustration 19 g06253259
View of hinge and right-hand plate on 345-3312 Bucket and Adjuster Gp
(2) 549-3116 Plate
(W1) 20 mm (0.8 inch) Bevel weld
(W2) 16 mm (0.6 inch) Fillet weld
(W3) 20 mm (0.8 inch) Bevel weld
(W4) 16 mm (0.6 inch) Bevel weld
(W5) 20 mm (0.8 inch) V-groove weld
(D1) 20 mm (0.8 inch)
(D2) 20 mm (0.8 inch)
Weld Plate (1) and Plate (2) to the hinge on 345-3312 Bucket and Adjuster Gp as per the dimensions shown in Illustration 18 and Illustration 19 respectively.
Illustration 20 g06253255
366-8914 Severe Service Rock Bucket As
(3) 549-3117 Plate
(4) 549-3120 Plate
Tack weld Plate (3) and Plate (4) on 366-8914 Severe Service Rock Bucket As as shown in Illustration 20.
Illustration 21 g06253263
View of hinge and left-hand plate on 366-8914 Severe Service Rock Bucket As
(3) 549-3117 Plate
(W1) 20 mm (0.8 inch) Bevel weld
(W2) 16 mm (0.6 inch) Fillet weld
(W3) 20 mm (0.8 inch) Bevel weld
(W4) 16 mm (0.6 inch) Bevel weld
(W5) 20 mm (0.8 inch) V-groove weld
(D1) 20 mm (0.8 inch)
(D2) 20 mm (0.8 inch)
Illustration 22 g06253265
View of hinge and right-hand plate on 366-8914 Severe Service Rock Bucket As
(4) 549-3120 Plate
(W1) 20 mm (0.8 inch) Bevel weld
(W2) 16 mm (0.6 inch) Fillet weld
(W3) 20 mm (0.8 inch) Bevel weld
(W4) 16 mm (0.6 inch) Bevel weld
(W5) 20 mm (0.8 inch) V-groove weld
(D1) 20 mm (0.8 inch)
(D2) 20 mm (0.8 inch)
Weld Plate (3) and Plate (4) to the hinge on 366-8914 Severe Service Rock Bucket As as per the dimensions shown in Illustration 21 and Illustration 22 respectively.
After welding, paint the plates and the areas that were welded.