How to prepare equipment for a field weld repair
A bit of preparation saves the welder time, which saves you money, and makes the repair safer and better.
1. Make it safe
- Park on firm, level ground. Lower attachments to the ground or block them securely.
- Shut down and lock out the machine. Remove the key.
- Disconnect the battery if the welder asks (welding current can damage electronics, and many welders will disconnect it or protect the ECU).
- Move fuel, oil, rags and other combustibles away from the repair area. Have a fire extinguisher on hand.
- Never ask for welding on or near fuel tanks, hydraulic lines or pressurized components that haven't been made safe.
2. Clean the area
Pressure-wash or scrape off mud, grease and oil around the damage. Contamination causes weak, porous welds, and cleaning it on the clock costs more.
3. Document the damage
- Take photos from a distance and close up, with a tape measure in the shot.
- Note the make, model and serial number of the machine or attachment.
- Note how and when it failed, and whether it was repaired before.
4. Sort out access
- Can a pickup with a welder drive within reach of the repair? How far is it?
- Gate codes, site orientation or check-in rules?
- Is power available? Most mobile rigs bring their own generator.
5. Know when not to weld
Some parts should be replaced, not welded. Examples include some axles, high-strength components and ROPS structures. A good welder will tell you. Check your manufacturer's guidance too.