Technical data

15
3 in 1 Cordless lawn mower WG780E
WEAR PROPER EYE PROTECTION WHILE REMOVING,
SHARPENING, AND INSTALLING BLADE. ENSURE
THAT SAFETY KEY IS REMOVED.
Sharpening the blade twice during a mowing season
is usually sufficient under normal circumstances. Sand
causes the blade to dull quickly. If your lawn has sandy
soil, more frequent sharpening may be required.
REPLACE BENT OR DAMAGED BLADE IMMEDIATELY.
WHEN SHARPENING THE BLADE:
1. Make sure blade remains balanced.
2. Sharpen blade at the original cutting angle.
3. Sharpen cutting edges on both ends of blade,
removing equal amounts of material from both
ends.
TO SHARPEN BLADE IN A VISE (See M)
1. Be sure the switch lever is released, the blade
has stopped and the safety key removed before
removing the blade.
2. Remove blade from mower. See instructions for
removing and attaching blade.
3. Secure blade M-1 in a vise M-2.
4. Wear safety glasses and be careful not to cut
yourself.
5. Carefully file the cutting edges of the blade with a
fine tooth file M-3 or sharpening stone.
6. Check balance of blade. See instructions for blade
balancing.
7. Replace blade on mower and tighten securely. Refer
to instructions below.
BLADE BALANCING (See N)
Check balance of blade by placing center hole in blade
N-1 over a nail or screwdriver shank N-2, clamped
horizontally in a vise N-3. If either
end of the blade rotates downward, file that end. Blade
is properly balanced when neither end drops.
BLADE MAINTENANCE (See O & P)
Renew your metal blade after 50 hours mowing or 2
years, which ever is the sooner-regardless of condition.
Follow these procedures to remove and replace the
blade. You will need garden gloves (not provided) and
a spanner wrench (not provided) to remove the blade.
Hold the blade (P-2) and unscrew the blade nut (P-5)
counterclockwise using a spanner wrench. Remove
blade nut (P-5), square washer (P-4), insulator washer
(P-3), and blade (P-2).
To re-assemble, first position the blade with the cutting
M-1
M-2
M-3
N-1
N-2
N-3
P-1
P-2
P-3
P-4
P-5
P-0
M
N
O
P