Whether it is mining gear or construction tools, heavy equipment is a very serious business. If something breaks, then you need to get it repaired as soon as you can to avoid potential delays, but that can sometimes mean that you either have to repair it yourself or call in an expensive specialist to do it instead.
Should you try repairing your heavy equipment yourself, or is it best left to a professional that already has experience with doing these kinds of repairs themselves?

Danger
One of the biggest things to consider when repairing heavy equipment is the amount of danger you might be in. Some equipment is going to be riskier to repair than others – for example, a huge mining drill might have a sharp drill bit that needs replacing, and a construction vehicle often requires very careful refueling.
These are not inherently dangerous on their own, but they can be if you are not experienced with doing them already. It is very easy to end up accidentally hurting yourself if you are not careful, and shoddy repair work might even make a tool more dangerous than it was when it was broken.
On the other hand, if you take things slowly and read the instruction manuals, the repairs can be a lot easier. Staying prepared and understanding what you need to do is the most important part of repairing large, heavy equipment.
Complexity
Some heavy equipment is far more complex than others. The more effort it takes to actually repair something, the harder it can be, and the more likely you are to get something wrong unless you are following a very rigid set of instructions.
On the other hand, having instructions can make even the most complex heavy equipment a lot easier to work with, which might allow you to do the repairs much faster than hiring a third party. This is especially true for equipment that only needs basic repair work done rather than something much more in-depth.
Every piece of heavy equipment is different, and the kind of damage will also influence how hard the repairs will be. This means that understanding the damage is an important part of gauging if you can repair the tool.
Cost
Naturally, repairing something yourself will be cheaper than hiring somebody to do it for you. This can make independent repairs a much more affordable option for smaller companies that might not have many other options, especially if they operate on a tight budget.
Of course, you will still need to get the parts to actually carry out the repairs, but this is still cheaper than buying the parts and having to hire somebody to install them anyway. The only risk is that doing something wrong and damaging the equipment could lead to even higher repair costs in the future.
If you think you can handle the repairs on your own, nothing is stopping you from buying the parts you need and getting to work. However, if you are not confident with your own repair skills, then it can be smarter to call in a professional to minimize the potential risks.