How to use a gear puller

Tools for the Job

• Gear puller (two-jaw or three-jaw)
• Safety goggles
• Gloves
• Lubricating oil or penetrating fluid

How Do You Use a Gear Puller?

Before delving into the usage, it's crucial to grasp the different types of gear pullers available:

Two-Jaw Gear Puller

This type features two arms that grip the part being removed. It's suitable for smaller parts and tight spaces.

Three-Jaw Gear Puller

With three arms, this type provides a more balanced grip and is ideal for larger parts or where the item is a very tight fit and requires a lot of force to remove it.

They also come in different sizes as you could be removing a small bearing or a brake rotor. Make sure the puller is the correct size. Some things to look for are:

• Maximum reach – How far the arms extend past the end of the centre screw in millimetres. E.g., If the arms of the puller go to 100mm. If the back of the bearing on the shaft you are trying to remove it from is 125mm from the end of the shaft, then you need a puller with longer arms.
• Spread – The range the jaws can reach in millimetres. e.g., if a puller has a spread of 0 to 150mm and the diameter of your pulley is 200mm then you need a bigger puller.

Inspect the Gear Puller

Before use, check the gear puller for any signs of damage or wear. Ensure that the arms are straight and free from bends or cracks.

Prepare the Work Area

Place the equipment on a stable workbench or surface if not in situ on the vehicle. Clear any clutter and ensure there is ample space to manoeuvre the gear puller.

Wear Safety Gear

Put on safety glasses to protect your eyes from flying debris and wear gloves to shield your hands from sharp edges.

Apply Lubrication

If the part to be removed is rusted or seized, apply lubricating oil or penetrating fluid to loosen it. Allow some time for the lubricant to penetrate and work its magic.

Position the Gear Puller

Place the gear puller over the part to be removed, ensuring that the arms are evenly spaced around the circumference.

Adjust the Arms

Adjust the arms of the gear puller to fit snugly against the part. Ensure that each arm makes firm contact with the surface without slipping or shifting.

Tighten the Centre Bolt

Using a wrench or socket, tighten the centre bolt of the gear puller. Apply gradual pressure to avoid damaging the part or the gear puller itself.

Apply Tension

Slowly turn the centre bolt clockwise to apply tension to the part. Monitor the progress closely and stop tightening if you encounter excessive resistance or hear any unusual sounds. As it slides off the pressure needed to turn the centre bolt will decrease.

Release the Part

Once the part starts to loosen, continue turning the centre bolt until it separates completely from the shaft. Be careful at the end as the part or puller may drop down once the tension is removed and the part is free.  

Inspect the Part and Shaft

After removal, inspect both the part and the shaft for any signs of damage or wear. Clean the surfaces thoroughly and make any necessary repairs or replacements.

Clean and Store the Gear Puller

After use, clean the gear puller with a rag and store it in a dry, secure location. Proper maintenance ensures its longevity and effectiveness for future projects.

Gear Pullers at Repco

Mastering the use of a gear puller is an invaluable skill for any mechanic or DIY enthusiast and by using the appropriate safety precautions, you can safely and effectively remove press-fitted parts from shafts with ease.

At Repco we’ve got various gear pullers in different sizes and tons of other specialty tools for your next DIY project or professional job.