Brush Cutter/Strimmer

Step-by-Step Guide

Converting from Grass Trimmer to Brush Cutter

Step 1: Lock the Gear Head

• Align the slot in the flanged washer with the slot in the gear head
• Insert the supplied hex wrench through both slots
• This locks the gear head and prevents rotation during removal

Step 2: Remove the Trimmer Head

• Unscrew the grass trimmer head assembly by turning it clockwise
• Remove the cupped washer and flanged washer
• Keep all parts safe for later reassembly

Step 3: Install the Brush Cutter Blade

• Fit the flanged washer onto the shaft (hollow side facing the gear head)
• Place the brush cutter blade onto the flanged washer
• Ensure the raised centre passes through the blade hole
• Confirm the blade sits flat and correctly aligned

Step 4: Fit Retaining Hardware

• Install the cupped washer (raised centre facing away from the blade)
• Fit the blade nut onto the shaft

Step 5: Secure the Blade

• Insert the hex wrench again to lock the shaft
• Tighten the blade nut by turning anti-clockwise (left-hand thread)
• Use the supplied tool to fully tighten securely

Important: Always ensure the shaft is locked before tightening.

Converting Back to Grass Trimmer

Step 1: Remove Blade Assembly

• Hold the flange in place using the Allen key
• Unscrew the retaining nut by turning clockwise
• Remove the blade and washers
• Keep all parts for future use

Step 2: Fit the Trimmer Head

• Keep holding the flange with the Allen key
• Screw the trimmer head onto the shaft by turning anti-clockwise
• Tighten fully until secure
• Remove the Allen key before use
• 

Refitting the Brush Cutter Blade (Reverse Process)

• Remove the trimmer head
• Refit shield washers in the correct order
• Position the blade correctly on the shaft
• Lock the flange with the Allen key
• Tighten the retaining nut by turning anti-clockwise
• Ensure all components are fully secure before operation

Important Safety Information

• Always lock the shaft before tightening or loosening components
• Ensure the blade is correctly seated and balanced
• Never operate the machine with loose fittings
• Wear appropriate PPE when changing cutting attachments
• Confirm all parts are tight before starting the engine

Frequently Asked Questions

Why won’t my trimmer head unscrew?

It may be held in place by left-hand thread design. Ensure you are turning it in the correct direction (clockwise to remove, anti-clockwise to fit).

Do I need to lock the gear head every time?

Yes. Locking prevents rotation and allows safe removal and tightening of attachments.

Why is my blade wobbling after installation?

This usually indicates incorrect washer order or improper seating of the blade. Recheck the assembly steps carefully.

Can I switch attachments without removing the shaft lock tool?

No. The shaft must always be locked to safely loosen or tighten the cutting head or blade.

What should I do if parts don’t align?

Do not force components. Disassemble and check washer orientation and correct seating before retrying.