Welding lift arm.

shumungus

Member
Livestock Farmer
Have to weld an end onto lift arm of tractor. Have all the toys and would like to do it myself. am proficient in MIG and MMA all positions. Haven't stick welded in years and everything is usually in the workshop and migable. Would like to stick weld it and had a poke in the store and I have 6013, 7018 and 6881 stainless dissimilar. So any body any experience? what would you recommend, a bit of pre-heat and which rod ? I would say arm is cast steel.
@tinman @Welding Supplies Direct
TIA
 

Highland Mule

Member
Livestock Farmer
Have to weld an end onto lift arm of tractor. Have all the toys and would like to do it myself. am proficient in MIG and MMA all positions. Haven't stick welded in years and everything is usually in the workshop and migable. Would like to stick weld it and had a poke in the store and I have 6013, 7018 and 6881 stainless dissimilar. So any body any experience? what would you recommend, a bit of pre-heat and which rod ? I would say arm is cast steel.
@tinman @Welding Supplies Direct
TIA
Take it off and take it into the workshop?
 

tinman

Member
Location
Ulster
Have no fear of a good mig weld.
id cut the old one off , take a few measurements first, you mightn't need then but handy if you do.
if you want to go all fancy make up a wee jig out of scrap, to keep the right angle and such.
chamfer the cut end of the link arm on both sides leaving a ridge of about 3-4mm in the middle.
clean up the end of the new eye to something similar, space it about 3mm apart and tack it up.
a wee bit of a heat to help penetration and mig it up every other side, not in the one go, a root either side and then build it up, a couple of runs is all it ill be, 1 if you have the amps.
it will pull in the first welds but adjust to suit.
 
Last edited:

pail of ale

New Member
I would sooner use a 7018 than the mig for cast steel which is a very vague description of a material . I would v one side , tack the other side ,preheat ,put a root in the v (not in 1 continuous run) ,v the other side into the root you have done and weld away at a handy pace alternating sides ,to keep the work hot but not too hot , avoiding big weaves and wrapping in a fire blanket after to slow down the cooling as much as possible .I am not a qualified welder . This is only an opinion .You said you are a compitent welder so I hope this isnt overkill
 

Mur Huwcun

Member
Livestock Farmer
Location
North West Wales
Original weld will be a MIG process. I’ve done them with MIG everytime but a 400amp plus three phase one but not running stupid amps. V the joint out, set it up with a gap and tack it up. I used some pre heat just in case and run a root either side then build it up to look as original as possible.
 

the-mad-welder

Member
Location
Suffolk
MIG or 7018 rods. Both are a low hydrogen process so either is good. I'd be using the MIG (technically MAG as I use a C02 mix) as that what my codings are for.

Otherwise as above. Measure and measure again, prep the edges and it'll be fine. These and replacing towing eyes are always a bit daunting but actually very simple.
 

shumungus

Member
Livestock Farmer
MIG or 7018 rods. Both are a low hydrogen process so either is good. I'd be using the MIG (technically MAG as I use a C02 mix) as that what my codings are for.

Otherwise as above. Measure and measure again, prep the edges and it'll be fine. These and replacing towing eyes are always a bit daunting but actually very simple.
Tried to tag you but couldn't as didn't remember the - between the words.
 

Farmer_Joe

Member
Livestock Farmer
Location
The North
MIG or 7018 rods. Both are a low hydrogen process so either is good. I'd be using the MIG (technically MAG as I use a C02 mix) as that what my codings are for.

Otherwise as above. Measure and measure again, prep the edges and it'll be fine. These and replacing towing eyes are always a bit daunting but actually very simple.
you heat towing eyes or just go at it with rods?
ive got one worn temped to just build it up but could replace?
 

Mur Huwcun

Member
Livestock Farmer
Location
North West Wales
I wouldn’t like to even think of building them up with weld as you don’t know what the heat will do to the metal and to the temper of the material. It’s not something you want to let go on you is it!!
 
Last edited:

Forum statistics

Threads
184,196
Messages
4,194,090
Members
46,153
Latest member
lewisgideon

CHAP launches CropMonitor Pro a new digital service for predicting crop pest and disease risks

  • 85
  • 0
CHAP launches CropMonitor Pro â a new digital service for predicting crop pest and disease risks

CHAP is delighted to announce the launch of a new digital service – Crop Monitor Pro. It is designed to help growers and agronomists predict the likelihood of pest and disease outbreaks on their farm.

CropMonitor Pro extends the DEFRA funded, long-standing regional risk evaluation service (Crop Monitor) which was first launched in 2003 by Fera Science Limited (Fera). CropMonitor Pro is a significant advancement on that service by providing field-level risk prediction for a range of pests and diseases affecting winter wheat, winter oilseed rape and...
Top