Maintenance Schedule; Carburettor Adjustment - GMC GHT26 Manual De Instrucciones

• When cutting:
• Assume a secure position, using two hands to hold the trimmer
• Trim both sides of the hedge, starting at the bottom
• Pass the blade lightly through the surface of the hedge. Do not attempt to cut
too deep
• Trim the top of the hedge
• For older hedges that require cutting back substantially, use pruning shears to
cut the thicker branches and then finish the job with the hedge trimmer
WARNING: Do not let the blade come into contact with fencing wire or any other
object that could damage it.

Maintenance Schedule

Work to be
Description
carried out each use
Inspect
visually
Air filter
Clean
Cleaning
Spark plug
& adjusting
Inspection
Fuel lines
& cleaning
Blade Cleaning
WARNING: Maintenance not covered by this manual MUST be carried out by an
authorised GMC technician. Attempting such maintenance or repairs will void the
warranty.
Cleaning the air filter
WARNING: Never run this tool without the air filter element fitted, as this would lead
to rapid wear of internal components, causing permanent engine damage and shorten
the service life of this tool.
1. Remove the Air Filter Fastener (8) from the air box to release the cover
2. Pull the cover away from the air box to reveal the air filter (Image E)
3. Remove the air filter element from the air box
WARNING: DO NOT use petrol or other flammable solvents to clean the filter element,
as this could lead to fire or explosion.
4. Wash the air filter element thoroughly in a solution of warm water with non-foamy
household detergent, or clean with a specialised non-flammable solvent
WARNING: DO NOT wring out the element, as this would damage the sponge
material.
WARNING: NEVER install a wet filter element, as water in the air intake will lead to
permanent engine damage.
5. Immerse the dried filter element in clean engine oil, or alternatively, apply
specialised air filter oil to the filter element. Gently squeeze (but DO NOT wring
out) to remove excess oil.
6. Reinstall the air filter element and air box cover
Before After 1 month / first 20
hours
(X)
(X)
Accessories
• A range of accessories and consumables, including a 2-Stroke Fuel Mixing
Bottle is available from your GMC stockist. Spare parts can be obtained from
toolsparesonline.com
Maintenance
WARNING: Ensure the Ignition Lead is disconnected before attaching or changing any
accessories, or making any adjustments, to prevent accidental starting.
WARNING: ALWAYS wear adequate personal protective equipment, including eye
protection and oil/fuel-resistant gloves, when carrying out maintenance on this tool.
ALWAYS ensure proper ventilation.
Every 3 months/ 50 hours Every 6 months/ 100 hours
(X)
Spark plug maintenance
Note: Before installing a new spark plug, ensure the gap is correctly set to 0.5 –
0.7mm. Not doing so could cause the piston to conflict with the spark plug, damaging
internal components.
1. Remove the Ignition Lead (5) to reveal the spark plug
2. Remove the spark plug using the provided Spark Plug Combi Tool (19)
3. Clean or replace the spark plug
4. When installing the spark plug, turn the plug by hand until resistance is felt, then
continue to turn (using the Spark Plug Combi Tool) another 1/3 of a turn

Carburettor adjustment

Note: It may be necessary to adjust the idle speed, dependant on climate, ambient
temperature and elevation.
1. Remove the Air Filter Fastener (8) from the air box to release the cover
2. Pull the cover away from the air box to reveal the idle adjustment screw (Image F)
• Using the Spark Plug Combi Tool (19) turn the idle adjustment screw clockwise
to increase the engine idle speed, or anti-clockwise to decrease the engine idle
speed
9
Every 12 months/ 300 hours
(X)
(X) (Authorised GMC service
centre only)
GB