Which welding rod?

- Vert up vs down? Generally, vertical down is done for thin (think sheet metal) work pieces to enable/force a faster travel speed to (help) limit penetration.

- Filler/rod to use? Depends more on what alloy(s) of steel you are welding and a bit less on the thickness.

No to in this case, that is a low/medium penetration rod.

Anything in the 60xx family might not be correct either, if the materials being welded together are anything other than mild steel.

The "stick" on a backhoe/excavator might be mild steel, or it might be something else. There may (or may not) be reinforcing plates or hardfacing beads.

And although is a 'good' electrode for a lot of welding purposes, it might not be the 'right' electrode for all welding purposes. And it MUST be properly stored and used in order to maintain the low hydrogen properties of the electrode and the welds made with that electrode (which is CRITICAL for welds made on many steels that are 'stronger' than mild steel like A36 or similar).

Next, proper prep prevents piss-poor performance.

Clean the steel of anything that is NOT actually bright shiny steel. Things like paint, or grease or oil, or dirt or rust or anything else that is NOT bright clean shiny steel.

And even though rod has a 'good' flux/slag system, you do NOT want to have not-steel mixing into the weld puddle. Because of the hydrogen that WILL result from the paint/grease/oil/rust and therefore pretty much eliminate the low-hydrogen aspect you probably wanted/needed when you used the (or , or , etc) low-hydrogen electrode in the first place.

With some 1/2" and 5/8" plate, you might want/need at least some level of preheat.

Wire-feed weld on 1/2" or 5/8" plate? Sure, but you are NOT going to do that (successfully anyway ) with short-circuit transfer mode welding. And not with a 120V machine (barring some sort of high input amperage 'special' machine). For out-of-position welding, you'd have to use either pulse-spray mode with solid wire or some FCAW (self-shielding or gas-shielded) or metal-core wire.

There's more to successful welding than just grabbing some electrode and and making an arc.

Too late now, but :- Vert up vs down? Generally, vertical down is done for thin (think sheet metal) work pieces to enable/force a faster travel speed to (help) limit penetration.- Filler/rod to use? Depends more on what alloy(s) of steel you are welding and a bit less on the thickness.No to in this case, that is a low/medium penetration rod.Anything in the 60xx family might not be correct either, if the materials being welded together are anything other than mild steel.The "stick" on a backhoe/excavator might be mild steel, or it might be something else. There may (or may not) be reinforcing plates or hardfacing beads.And although is a 'good' electrode for a lot of welding purposes, it might not be the 'right' electrode for all welding purposes. And it MUST be properly stored and used in order to maintain the low hydrogen properties of the electrode and the welds made with that electrode (which is CRITICAL for welds made on many steels that are 'stronger' than mild steel like A36 or similar).Next, proper prep prevents piss-poor performance.Clean the steel of anything that is NOT actually bright shiny steel. Things like paint, or grease or oil, or dirt or rust or anything else that is NOT bright clean shiny steel.And even though rod has a 'good' flux/slag system, you do NOT want to have not-steel mixing into the weld puddle. Because of the hydrogen that WILL result from the paint/grease/oil/rust and therefore pretty much eliminate the low-hydrogen aspect you probably wanted/needed when you used the (or , or , etc) low-hydrogen electrode in the first place.With some 1/2" and 5/8" plate, you might want/need at least some level of preheat.Wire-feed weld on 1/2" or 5/8" plate? Sure, but you are NOT going to do that (successfully anyway) with short-circuit transfer mode welding. And not with a 120V machine (barring some sort of high input amperage 'special' machine). For out-of-position welding, you'd have to use either pulse-spray mode with solid wire or some FCAW (self-shielding or gas-shielded) or metal-core wire.There's more to successful welding than just grabbing some electrode and and making an arc.

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