A shear pin is designed as a failsafe device that fails under a preset load in order to protect the rest of the machine and operators from damage or injury. For Honda snowblowers, the shear pin is used to protect the machine in the event that it comes under heavy stress. For example, a large rock getting caught in the blades would break the shear pin in order to keep the drivetrain, gearbox, auger, and blower from being damaged. Any of these instances would be extremely expensive to fix.
Shear pins are safety devices designed to prevent accidents and are generally cheap in an effort to promote their use. Furthermore, it’s important that the correct rating be used for the given device. The correct rating is often included in the operational manual that came with the snowblower.
A broken shear pin has an immediate effect on a Honda snowblower and is designed to stop the machine from functioning once broken. The signs are easy to spot and include the machine becoming hard to push and/or the auger not functioning.
Fortunately, replacing a shear pin on a Honda snowblower is designed to be easy and affordable in an effort to promote safety. Here are the steps required.
The following sections are provided for informational purposes only. This website accepts no responsibility for any damages and/or injuries arising from readers attempting to follow them. If in doubt, it’s always best to consult a qualified professional
How to Replace
Here’s a quick look at how to replace a shear pin on a Honda snowblower.
Step 1: Locate the Pins
Shear pins are located at the front of the snowblower; there are generally more than one. The simplest way to find the shear pins is to locate the auger housing. The pins are located on the blower directly behind it.
Step 2: Remove the Broken Pin
Always exercise safety when removing shear pins because it involves working around the auger. Turn off the machine, remove the key, and make sure that the rotor has stopped spinning. To add even more safety, you should also remove the spark plug. Next, make sure that the snowblower is positioned on a flat surface and that there are no obstructions around the machine. Now you can finally start working on removing that shear pin.
Start off by clearing the auger housing of any excess snow so that you can get a better look at the shear pins. Since the pins are designed to break under stress, you might just find an empty hole where it used to be. If you see an empty hole and can also freely spin the auger, then removal might not be necessary because the pin has already fallen off. If you can see the pin is still in its hole, then removing it is usually a simple matter of pushing or pulling it from its hole.
It might be necessary to use a punch to drive the bolt from its hole if it does not immediately drop free.
Step 3: Replace the Shear Pin
It’s worth nothing that you should never use conventional bolts as replacements for a shear pin. Shear pins are designed to break under stress to keep from causing more damage to the snowblower. Since conventional bolts can withstand higher stress loads, using them can lead to very expensive damage or injury to the operator.
Replacing a shear pin is simply a matter of placing the new pin in the empty hole. If there are any issues fitting the new pin into the hole, then lightly tap it while carefully keeping the auger and blower aligned. Once the new shear pin is in its new home, place the washer on the back side and tighten it. You will need an additional wrench to hold the front side of the pin during replacement.
Having replaced the damaged shear pin, all that’s left is to make sure that the auger does not spin freely. Now replace the spark plug and start the blower to ensure that it operates correctly. Congratulations, you have successfully replaced the shear pin!