VALVE AS-CHECK 9J3854 - Caterpillar

Stepping the fillet welds.The large arrow shows the direction of the weld pass.13. Continue making fillet weld passes alternately on each side of the adapter stopping each pass slightly in front of the previous one. Feather the welds one on top of the other until the correct fillet weld size has been attained (see above illustration).* Repeat steps 2 and 3 after each weld pass. The above illustration is intended to show the preheat and the weld sequence for the adapters only. It is not intended to show any specific type of adapter or cutting edge. Weld in a similar sequence to decrease possible distortion.14. Repeat steps 10 thru 13 for the remaining adapters.15. Put a cover over the base cutting edge and let it cool slowly.Weld Procedure For Flush Mounted Adapters
Do not preheat the Adapters or the Base Cutting Edge when the base cutting edge is 25 mm (1 in) thick or less.
Flush Mounted Adapter Weld Specifications
(1) Soft iron wire.* The size of weld (A) is equal to the size of the groove formed by the adapter.* The size of fillet weld (B) is equal to the height of the weld groove in the adapter plus 2 mm (.08 in).* The size of fillet weld (C) is equal to fillet weld (B).* The size of weld (D) is determined by the size of the groove formed between the base cutting edge and the adapter.In situations where flush mount adapters are being welded on to non-Caterpillar or extra sharp base edges, it may be necessary to modify the front of the base edge so that a properly sized weld can be applied to the underside of the adapter.
Cut area (F), minimum flat, as shown. Extend the flat height 25 mm (1 in) to 51 mm (2 in) beyond the adapter width and gradually decrease the cut to the sharp edge. Grind all surfaces smooth.
Use 2 mm (.09 in) Ø soft iron wire as spacers between the adapter and the base cutting edge to prevent weld cracks on flush mounted adapters only.
Weld Procedure
* All surfaces to be welded should be flat or in a horizontal position.* Start at the front of the cutting edge and weld towards the rear.* All weld passes should be continuous.* Complete all welding on the top side of the base cutting edge first.1.