Honda UMR435T Manuel De L'utilisateur page 34

Cutting blade inspection:
For safety, check the cutting blade for wear and damage and check the
tightness of the cutting blade nut before starting the engine. Operating the
grass/weed trimmer with a worn, cracked, or damaged cutting blade can
cause a personal injury or equipment damage. A worn, cracked or damaged
blade can break and pieces of the damaged blade can hit the operator or
bystanders causing death or serious injury.
CAUTION:
Wear heavy gloves to protect your hands, when working around the cutting
blade.
NOTE:
When replacing the cutting blade, please use a blade which is designed for a
maximum rotational speed of 9,000 n/min or above.
1. Stop the engine with the engine switch to the OFF position.
2. Check the tightness of the cutting blade nut.
Tighten the nut if it is loose (see page 50).
If it is hard to do it yourself, consult your authorized Honda dealer.
3. Check the cutting blade for wear, bend, crack and other damage.
If the blade is worn out, cracked, chipped, or otherwise damaged replace the
damaged blade with new one which is a genuine Honda replacement cutting
blade or its equivalent (see page 50).
A dull blade can be sharpened.
If it is hard to do it yourself, consult your authorized Honda dealer.
NORMAL WORN
CRACKED
NICKED
BENT
31