Homelite UT44172 Safety Switch Replacement

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Introduction

This guide shows how to replace the Safety Switch on the Homelite UT44172 4.8-volt Cordless Grass Shear. The safety switch must be pressed simultaneously with the operating switch for the blades to move. If the safety switch is stuck or loose, then it or its spring may need to be replaced.

What you need

Step 1 Opening the device

Homelite UT44172 Safety Switch Replacement, Opening the device: step 1, image 1 of 1

Remove the six 1.5 cm screws marked on the picture from the plastic casing with a Phillips #2 screwdriver.

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Step 2 Remove Faceplate

Homelite UT44172 Safety Switch Replacement, Remove Faceplate: step 2, image 1 of 1

Remove the faceplate to expose the inner mechanisms.

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Step 3 Switch Removal

Homelite UT44172 Safety Switch Replacement, Switch Removal: step 3, image 1 of 3

Homelite UT44172 Safety Switch Replacement, Switch Removal: step 3, image 2 of 3

Homelite UT44172 Safety Switch Replacement, Switch Removal: step 3, image 3 of 3

Remove the safety switch by pulling it away from the body of device.
Be careful not to lose the spring, which is under pressure and may fly out during removal.

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Step 4 Spring Replacement

Homelite UT44172 Safety Switch Replacement, Spring Replacement: step 4, image 1 of 1

Inspect both the spring and the switch to see if either is deformed or damaged. If so, replace the damaged part with a new part.
During reassembly, gently move the inner wires out of the way so they do not get caught in the spring.