Here at Earlbeck we understand that when you invest in a welding machine, it's not just about the purchase; it's about the long-term value and the work you are able to produce with it. We've been in the welding business for over a century, and during that time, we've learned a thing or two about how to get the most out of your hard-earned money.
We’d love to share some valuable insights that can make real difference in your workflow. Today we are focusing on the Bobcat 225, a Miller brand engine-driven welding machine that we see regularly in our service shop due to it's popularity. You can use the Bobcat 225 for Stick, MIG, and non-critical TIG welding as well as to power tools as a generator. So let’s make sure you get the most out of those capabilities addressing costly and potentially dangerous mistakes! 
Make the most of your machine by focusing on maintenance. It all starts with a small but incredibly important item that often gets overlooked: the manual that comes with your welding machine.
You might be thinking, "What's the big deal about a manual?" Well, it's a big deal. Your welding machine's manual is a treasure trove of knowledge and guidance that can make a world of difference. It's your key to understanding your machine inside and out, even before you unpack it. Additionally, it plays a crucial role in setting up and maintaining your machine properly- so let's discuss routine maintenance! 
Every 8 hours you should be checking your fuel level. Always leave filler neck empty to allow room for expansion. Check fuel level on a cold engine before use each day. Another important check is your oil level. Check oil with the unit on level surface and if the oil is not up to full mark on dipstick, add some more. Be sure to clean up any spilled oil or fuel before using your machine.
Every 20 hours you should check your spark arrestor screen. First stop your machine and let it cool. Then check and clean the screen. Replace spark arrestor if screen wires are broken or missing. 
Every 25 hours be sure to clean your air cleaner wrapper. Never run your engine without air cleaner or with dirty element. Wash precleaner with soap and water solution. Allow precleaner to air dry completely. Then spread 1 tablespoon SAE 30 oil evenly into precleaner and squeeze out any excess oil. Simply replace the element if damaged, dirty, or oily.
Every 50 hours make sure you check on your weld terminals. Failure to properly connect weld cables may cause excessive heat and start a fire, or damage your machine. You can use any clean hand brush to remove debris.
Every 100 hours take a look at your battery terminals and clean them with a clean hand brush. If there is battery discharge, clean the battery, terminals, and posts with baking soda and water solution and then rinse with clear water. You'll also want to clean your cooling system with a clean brush to keep it running smoothly. Additionally you'll want to change your oil at 100 hours. First stop your engine and let it cool- then drain the oil, close the valve and valve cap, and fill the crankcase with new oil to full mark on dipstick. Wipe up any spilled fuel, start engine, and check for fuel leaks. And lastly you'll want to check if you need to replace your air cleaner wrapper.
Every 200 hours you'll want to check your machine's labels and replace any that have become unreadable from being on the job. Next you'll want to check the spark plug gap. Severely worn spark plugs will not ignite the air and fuel mixture. Engine will start hard and run very rough. If spark plugs are black, dry, or wet, there is a problem with fuel or air delivery. Remember, use only resistor spark plugs and wires. Next change your oil filter and replace your fuel filter. Install new filter with arrow pointing in the direction of fuel flow then start the engine and check for fuel leaks. Stop engine, tighten connections as necessary. Reset oil maintenance countdown by leaving the engine off and flipping Engine Control switch from Run/Idle to Run three times.
Every 500 hours you should check and replace your weld cables if necessary. Failure to properly connect weld cables may cause excessive heat and start a fire, or damage your machine. Never place anything between weld cable terminal and copper bar and make sure that the surfaces of the weld cable terminal and copper bar are clean.
You will also need your slip rings to be cleaned and your brushes replaced, however this is not a job for the operator. Bring your machine to a factory authorized service agent (like Earlbeck) for this task! |
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In the world of welding, knowledge is power- and we're here to empower you! Sometimes, the smallest things, like that manual tucked away with your machine, can have the most significant impact on your work. By following along with your machine’s maintenance schedule you can not only save time and money but also ensure your safety and the quality of your work. If you ever find yourself facing challenges that are beyond your expertise, don't hesitate to reach out to our service center. We're here to provide the support you need to keep your welding projects running smoothly and safely. Your success is our success, and we're with you every step of the way.
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