When it comes to engineering it is absolutely essential that the right tools are available so that the job can be done properly. Engines are incredibly complex, and if the proper tools are not used then it can become very difficult to complete the job, however more importantly it means that irreversible damage could be done to the engine which would not be a good situation. A good engineer will always have all of the tools readily available so that they can work quickly, efficiently and also safely.
One example of the importance of having the right tool is for the removal of bearings from an engine, as you will find pressure-set bearings in certain engines which sit very tightly and are hugely important in keeping the engine working properly. As they sit so tight in the engine, it means that a specialist tool needs to be used to extract them, and any other attempts could be futile but more importantly do serious damage to the engine. This is why bearing pullers are such an important tool for engineering, and there are a wide range of these pullers which can be used to get the job done. It is important that you research what bearing puller can be used on the engine or machine you are working on however, as not all pullers can be used on all engines (this information can usually be found in the repair manual).
Some of the different bearing pullers that you can use include mechanical jaw pullers, jaw spreads, hydraulic pullers, puller sets and mechanical push pullers amongst many others. The mechanical push pullers are particularly useful for engineering in that they can exert both a pushing and pulling force, which makes them able to install and also remove parts. This can include the installation and removal of parts such as the bearings, pulleys, gears and other press fitted parts, and you can find out more here about the benefits of mechanical push pullers as well as the specifications, applications and more helpful information.
So if you are looking to do some engineering work then before you get started be sure to check the repair manual and make sure that you have the right tool for the job, and this is so that you can get the job done properly but most importantly you can get it done safely and without damaging the engine. Engines are incredibly complex and impressive bits of machinery, and with press fitted parts it is particularly important to have the right tool for the job, much like any other line of work.