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  How to Replace the Trigger Return Spring on an Echo Trimmer (Model SRM-225)

Video

Tools & Materials

Fix Factor: Easy Duration: 10 minutes Frequency: As necessary Tools Required: Torx wrenches, long-nosed pliers, standard screwdriver Part #: V452000212

How to Replace the Trigger Return Spring on an Echo Trimmer (Model SRM-225)

how to replace the trigger return spring on an Echo trimmer The Facts

String trimmer out of whack? It's time to face the fix. Whether you are a legendary landscaper or a weekend weed whacker, eReplacementParts.com provides the parts, procedures and facts you need to fearlessly fix what fails you.

The trigger allows you to open and close the throttle on your trimmer. The trigger return spring provides necessary tension for this trigger to operate smoothly. Over time, the trigger return spring can break, resulting in a trigger (and throttle) that requires manual manipulation to open or close.

This article provides step-by-step instructions for removing and installing the trigger return spring on an Echo SRM-225 trimmer.

Let's get started.

The Fix   REMOVING THE TRIGGER RETURN SPRING [top] 1. Remove the control handle assembly.

Remove the (4) screws from the cover of the control handle assembly.

Remove the screws

 

Remove the cover from the control handle assembly.

Remove the cover

 

Remove the (2) screws from the clamps inside the control handle.

Remove the clamp screws

 

Remove the control handle assembly.

Remove the control handle

 

 

  2. Remove the trigger return spring.

Lift the trigger lockout/throttle cable assembly away from the control handle.

Remove the cable

 

Lift the throttle trigger assembly away from the control handle. It may be helpful to immobilize the trigger return spring with long-nosed pliers while removing the trigger.

Remove the trigger

 

Use long-nosed pliers to remove the trigger return spring from the throttle trigger.

Remove the spring

 

 

  INSTALLING THE NEW TRIGGER RETURN SPRING [top] 3. Install the trigger return spring.

Slide the new trigger return spring over the shaft of the throttle trigger.

Install the new spring

 

Use long-nosed pliers to lock the return spring into position. The upper arm should be seated against the upper portion of the shaft recess; the lower arm should be seated within the notch on the throttle lever.

Align the spring in the housing

 

Install the throttle trigger (and spring) into the control handle; the shaft of the throttle trigger should align with the hole in the control handle.

Install the trigger

 

Use long-nosed pliers to bend and lock the return spring into position behind the plastic tab in the control handle.

Bend the spring into place

 

 

  REASSEMBLING THE UNIT [top] 4. Reinstall the control handle assembly.

Reinstall the trigger lockout/throttle cable assembly into the control handle.

Install the cable

 

Use a screwdriver to tuck the ignition wires into the channels along the inside of the control handle.

Tuck the wires

 

Align the throttle cable with the grooves along the control handle (above the ignition wires).

Align the throttle cable

 

Position the control handle assembly on the main pipe.

Align the handle

 

Align the metal ring clamps with the slots in the control handle assembly.

Align the clamps

 

Install (but do not fully tighten) the (2) screws into the ring clamps.

Install the clamps

 

Rotate the control handle assembly into alignment with the engine and the front handle.

Align the handle

 

Fully tighten the screws in the ring clamps to secure the control handle assembly.

Secure the clamps

 

 

  5. Reinstall the control handle cover.

Install the cover onto the control handle assembly.

Install the cover

 

Secure the cover with the (4) screws.

Secure the cover

  The Finish

You don't have to leverage your savings to level your lawns. As you just learned, repairing your own equipment is easy when you follow our step-by-step guides. Not only did you restore trimmer functionality at a fraction of the cost of replacement; you have taken the edge off of future repairs, wherever you may find them.

Find your next fix here.   [top]

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