Belt diagrams help. It is not easy to remember where every part goes or how it is to be routed. A good diagram should give you the edge you need to put an engine’s belt on without too much difficulty
It is not hard to find a belt diagram for your RV or Freightliner motor. All you have to do is put the right terms into the search box, like M2 Belt design, and images should pop up in an instance. You just have to pick the right one to follow.
To learn more about this topic, just continue to read our article. It has the information you want to know about so you can do this simple repair yourself. But you will want more than a diagram to get it all right.
The following diagram should give you all the help you need when you are being a home mechanic. The key to changing the belt is to get the routing right as well as the tension correct.
This takes a little practice but the routing is the easy part. You just make sure you follow the image exactly. Getting the tension right is a little more difficult but you want to leave some slack in the belt, not much but enough to have your engine perform correctly.
If you are not sure about your ability, have someone on hand to lend some guidance and some confidence. You should do the work so you can build up your confidence and be able to do this work when no one is around or can’t help you if they are.
In this section, we will provide you with 2 links. These links are to Cummins’ website and should provide all the manuals and diagrams you will ever need. It is best to go to the source of the engine design as they know their motors well and can provide the best instructions.
The first link is to their engine manuals web page. You can access it by clicking on this link. Take some time to explore the web page options to make sure you find the right manual for this motor.
The second web page we will link to is the one that has everything on it. There are links for engine manuals, diagrams, and technical documents. This is provided just in case you need more info than just a manual. Just click here to get to that web page.
Again, take the time to explore this resource. You never know what you will find that may help you in the future and another problem.
To find the belt route, look at the diagram above. You will be moving from the left to the right, to the bottom, and then back up a little way before going back down. Then you go up one final time to complete the installation.
The key to installing the belt is to loosen the tension as much as possible. But do not go too far. You want slack but not too much slack. The next step is inserting the belt into position.
In the diagram, you will see numbers. Those numbers not only identify the different parts but it also provides you with the direction you should go in. Double-check your work when you are done, just to make sure you got it right.
It may be a simple installation but even simple installations can get messed up by simple mistakes. When you are satisfied that the installation is correct, tighten the bolt to add tension to it.
Just do not over-tighten the bolt as you need a little, not much, slack in the belt. Belts will stretch on you over time and there is no need to give them a head start by adding too much tension to them in the beginning.
If you think there is too much tension, just back the bolt off a bit and you should be fine. Use your finger to test the tension and you should have a little play in the belt. But you should not be able to push it too far nor should you not be able to push it at all.
This link will take you to another diagram, which actually happens to be the same one as the one included in this content above. It just happens to provide you with more information on how to change or tighten the tension.
Also, it clearly tells you which diagram is for AC ad which is not for AC. To know when it is time to change your belt you just have to listen. The belt will make noises when it is starting to slip. But the first few times you hear the noises, you do not have to replace the belt.
When it is time to replace it is when you cannot adjust the tension any further. The belt has stretched as far as it can go. That is when you replace the belt. The replacement process should take you 15 to 30 minutes depending on your skill and experience.
This task is one of the easiest to do on a car. You do not have to remove any parts except the belt. The tension bolt only needs to be loosened.
Changing or tightening a belt on an engine is not difficult. It just takes practice to get the tension right. Following the diagram should make installation very simple.
Take your time as it is easy to make mistakes. Even when you are doing a simple belt replacement. Or if you do not want to get your hands dirty, go to your local mechanic who can do it even faster.
Belts last for a long time so you won’t be getting much practice doing this work unless you help your friends change their engine belts.