Molly Ayala
Removing the gear shaft from an electric sawzall can be a tricky process. The first step is to check for and remove any components holding the gear to the shaft, such as set screws or snap rings. If the gear is tight, a two-jaw or three-jaw puller can be used for removal. For even more resistance, a chain grip can be used to keep the puller engaged. Alternatively, a bearing separator and a bar-type puller can be used in conjunction to remove the gear. If you don't have access to a puller, an oxyacetylene torch can be used to heat the gear, allowing it to be lightly tapped out.
Explore related products
What You'll Learn
Remove set screws and snap rings
Removing set screws and snap rings is an important step in the process of taking out the gear shaft of an electric sawzall. Set screws are usually hardened, which means that drilling them out will be a challenge. Here is a step-by-step guide to removing set screws and snap rings:
Firstly, identify the location of the set screws and snap rings. Set screws are often found on either side of the shaft, pressing against the lid and holding it in place. Snap rings can be covered in grease, making them hard to spot. Before attempting to remove any screws, it is important to protect the surrounding surface. This can be done by duct-taping a thin sheet of metal over the area.
Next, try to loosen the set screws. If the screws are stuck, there are several methods to try. One approach is to use a larger key or an oversized Allen wrench, which can be ground down to make a tighter fit. Alternatively, you could try liquid wrench, tapping the screw to break up any rust, or aerosol rust remover. Drilling and tapping is another option, but this can be difficult due to the hardness of the screws. If you do attempt to drill, it is recommended to remove any powder coating and apply heat to soften the screw first.
If the above methods do not work, you may need to use screw extractors. These require a hole to be drilled, but a stripped-out hex head can serve as the hole. Insert an extractor bit that is slightly smaller than the hole, apply pressure, and the reverse threads will bite into the sides and remove the screw.
Finally, to remove snap rings, snap ring pliers are the best tool for the job. However, if you do not have access to these, needlenose pliers may work, depending on the size of the pliers and the c-clip holes.
By carefully following these steps, you can effectively remove the set screws and snap rings, allowing you to proceed with the rest of the process of taking out the gear shaft of an electric sawzall.
Activating Your Electric Weed Wacker: A Simple Guide
You may want to see also
Explore related products
Use a puller to remove the gear
Using a puller is an effective way to remove the gear from an electric sawzall gear shaft. Here is a step-by-step guide on how to do this:
First, it is important to check and remove any components that may be holding the gear to the shaft, such as a set screw or a snap ring. Snap rings, in particular, can be difficult to spot if they are covered in grease. Once these components are removed, you can proceed with using the puller.
There are various types of pullers available, including two-jaw, three-jaw, and bar-type pullers. You can select the most suitable one for your specific sawzall model and your level of experience. If you are working on a small motor, an arbor press may also be an option, provided that the diameter of the end bell fits the press.
If you are using a two-jaw or three-jaw puller, carefully position the puller behind the gear. Ensure that the arms of the puller are hooked securely behind the gear. If the gear is very tight, you may need to use a chain grip to keep the puller engaged.
Another option is to use a bearing separator in conjunction with a bar-type puller. Position the bearing separator behind the gear and screw in the threaded rods of the puller. This method provides additional stability and force for removing tightly secured gears.
Once the puller is securely in place, it's time to apply pressure. Tighten the centre screw of the puller using a spanner or socket. As you do this, you will feel the resistance building up. Keep turning the screw until the pressure overcomes the friction or interference fit. At a certain point, you may feel like it's stuck, but with a little more force, it will suddenly start to move and eventually pop off.
If you find that the gear is extremely tight and difficult to remove, you can combine the use of the puller with heat. Heat the gear to approximately 300 degrees Celsius using the rosebud tip of an oxyacetylene torch. As the gear becomes hot, continue pulling it out with the puller. This will make the gear more pliable and easier to remove. Remember to wear leather gloves and a face shield when using oxyacetylene for your safety.
ESB and Electric Ireland: What's the Difference?
You may want to see also
Explore related products
Use a chain grip if the gear is too tight
If the gear is too tight, you can use a chain grip to remove it from the electric sawzall gear shaft. Chain grips, also known as vise grips, are used to maintain control and provide maximum grip on flat and round surfaces.
To remove the gear from the shaft, first check and remove anything that holds the gear in place, such as a set screw or a snap ring. Then, use a two-jaw or three-jaw puller to remove the gear. If the gear is too tight for the jaw and keeps disengaging, that's when you use a chain grip to keep the puller engaged.
There are various types of chain grips available, including those with one or two tips for added gripping power. Basic chain versions are chemically nickel-plated, while MEGAlife versions are maintenance-free. The retention force of the grip chain depends on the material conveyed and the spring design.
In addition to using a chain grip, you can also try using a bearing separator and a bar-type puller. Position the bearing separator behind the gear and screw in the threaded rods of the puller to remove the gear.
Bigger Fridge, Higher Electricity Bill?
You may want to see also
Explore related products
Heat the gear to remove it
To remove a gear from a shaft, it is important to first check and remove anything that holds the gear to the shaft, such as a set screw or a snap ring. If the gear is stuck, one method is to use a puller. A two-jaw or three-jaw puller can be used to remove the gear from the shaft. If the gear is too tight, a chain grip can be used to keep the puller engaged.
Another method is to use a bearing separator and a bar-type puller. The bearing separator should be positioned behind the gear, and then the threaded rods of the puller can be screwed in to remove the gear. If the gear is still stuck, heat can be used to help remove it. It is recommended to use the rosebud tip of an oxyacetylene torch to heat the gear. As soon as the gear is hot, it can be lightly tapped out. It is important to wear leather gloves and a face shield when using oxyacetylene.
An alternative method is to use an arbor press, which can be effective for small motors. Additionally, if the gear is still stuck, some suggest heating the gear core with an oxy acetylene torch, not a propane plumber's torch, while keeping the shaft cool. However, it is important to exercise caution as applying too much heat can damage the gear and shaft.
For plastic gears, it is possible to pry them off gently and evenly with tweezers, small needle-nosed pliers, or a pair of screwdrivers. Applying even pressure is crucial to avoid bending the motor shaft.
Electric Downriggers: 12V or 110V for Walker Models?
You may want to see also
Explore related products
Use a bearing separator and a bar-type puller
To remove the gear shaft from an electric sawzall, one method is to use a bearing separator and a bar-type puller. This process involves several steps to ensure the gear is safely and effectively removed. Firstly, it is important to check for and remove any components holding the gear to the shaft, such as a set screw or a snap ring. These components can sometimes be covered in grease and hard to spot.
Next, position the bearing separator behind the gear. The bearing separator has a distinctive structure, featuring a flat plate with tapered edges that can penetrate the available space. Once the bearing separator is in place, the bar-type puller can be used to apply force and remove the gear. The bar-type puller is designed with a crossbar and two or three legs (also known as jaws) that grip the gear, along with a central rotating screw. The number of legs selected depends on the amount of clearance around the gear and the force required. In this case, a two-jaw or three-jaw puller is recommended.
Before using the bar-type puller, ensure that the puller legs fit tightly around the gear. Adjust the legs accordingly. Then, position the forcing screw in the centre of the shaft and slowly turn it clockwise using a spanner or a socket wrench until it touches the shaft. At this point, you can begin to apply pressure to the forcing screw, gradually increasing the force until the gear is removed.
Using a bearing separator and a bar-type puller in conjunction allows for the safe and controlled removal of the gear shaft from an electric sawzall. This method ensures that the gear can be extracted without causing damage to the surrounding components.
Checking Your Electricity Balance: A Quick Phone Call Away
You may want to see also
Frequently asked questions
First, check and remove anything that holds the gear to the shaft, such as a set screw or a snap ring. Then, use a two-jaw or three-jaw puller to remove the gear. If the gear is too tight, use a chain grip to keep the puller engaged.
If the gear is still stuck, you can use a bearing separator and a bar-type puller. Position the bearing separator behind the gear and screw in the threaded rods of the puller.
Yes, you can use an oxyacetylene torch to heat the gear. Once it is hot, lightly tap it out. Make sure to wear leather gloves and a face shield for protection. Alternatively, you can use an arbor press for small motors.
