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My 108V Cordless Lawnmower is having issues with the height adjustment

Created by Chris McHale, Modified on Tue, 30 Jun at 10:14 AM by Chris McHale

Quick Answer

If you are having difficulty adjusting the cutting height on your 108V cordless lawnmower, first check that the height adjustment lever, rear axle and connecting rod are correctly connected and free from damage. The cutting height is adjusted using the central height adjustment lever and can be set between 25 mm and 75 mm.

Tip: Always adjust the cutting height with the lawnmower switched off and the batteries removed.


Before You Start

Before inspecting the height adjustment mechanism:

  • Switch the lawnmower off
  • Remove all batteries from the mower
  • Place the mower on a flat, stable surface

Always:

  • Wear protective gloves
  • Ensure the mower cannot roll while carrying out checks

Important: Never attempt to adjust the cutting height while the mower is running.


How to Check the Height Adjustment Mechanism

Follow these steps to identify the cause of the problem.

1. Inspect the adjustment mechanism

Check the following components for damage, disconnection or obstruction:

  • Height adjustment lever
  • Rear axle
  • Connecting rod

Ensure all parts are correctly connected and move freely.

[Insert image of height adjustment mechanism]


2. Adjust the cutting height

To change the cutting height:

  • Pull the cutting height adjustment lever outwards
  • Move the lever forwards or backwards to the desired position
  • Release the lever into the selected notch
  • Ensure the lever is fully secured before using the mower

The mower offers seven cutting height positions.

[Insert image of height adjustment lever]


3. Check the cutting height range

The available cutting heights are:

PositionCutting Height
125 mm
233 mm
341 mm
449 mm
557 mm
666 mm
775 mm

Always ensure the lever locks securely into the selected position.


If the Height Adjustment Still Doesn't Work

If the lever will not move, will not lock into position, or the cutting height does not change:

  • Check for grass, dirt or debris around the adjustment mechanism
  • Inspect the linkage for damage or bending
  • Contact our customer service team via Live Chat or submit a support ticket for further assistance

Important Maintenance Tips

  • Remove grass and debris from the height adjustment mechanism after each use
  • Do not force the adjustment lever if it is stiff
  • Always adjust the cutting height on level ground
  • Check the linkage periodically for wear or damage
  • Store the mower in a clean, dry location

Frequently Asked Questions

Why won't my lawnmower height adjustment lever move?

The mechanism may be obstructed by grass or debris, or one of the linkage components may have become disconnected or damaged.

How many cutting height settings does the mower have?

The mower has seven cutting height positions, ranging from 25 mm to 75 mm.

Should I remove the batteries before adjusting the cutting height?

Yes. Always switch the mower off and remove the batteries before making any adjustments.

What should I do if the lever won't lock into position?

Inspect the adjustment mechanism for dirt, damage or disconnected components. If the issue continues, contact our customer service team for assistance.


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