Worx WG788 User Manual
36V 19” Cordless lawn mower EN
Tondeuse à gazon de 19 po sans fil de 36V F
36V 19” Cortacésped sin cables ES
HELPLINE NUMBER
HELPLINE NUMBER
1-866-354-WORX (9679)
WG788
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1. UPPER HANDLE
2. SWITCH LEVER
3. SAFETY KEY
4. LOWER HANDLE
5. HANDLE HEIGHT ADJUSTMENT LEVER
6. LOCK CAM LEVER
7. SAFETY GUARD
8. BATTERY HOUSING COVER
9. SIDE-DISCHARGE COVER
10. CUTTING HEIGHT ADJUSTMENT LEVER
11. GRASS COLLECTION BAG
12. MULCHING INSERT (See K1)
13. SIDE-DISCHARGE CHUTE (See M1)
14. SCREW KNOB (See C2)
15. BATTERY PACK * (See B)
16. CHARGER * (SEE B)
17. WORK MODE DIAL(See L)
18. CHARGED INDICATOR LIGHT (GREEN) (See Fig.B2)
19. CHARGING INDICATOR LIGHT (RED) (See Fig.B2)
*Not all the accessories illustrated or described are included in standard delivery.
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36V 19” Cordless lawn mower EN
36V 19” Cordless lawn mower EN
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TECHNICAL DATA
Power input 36V
Deck diameter 19’’ (48cm)
Cutting diameter 18”(46cm)
Front wheel diameter 7” (178mm)
Rear wheel diameter 8-1/4” (210mm)
Cutting height 1.5”-3.5” (38 – 88 mm)
Cutting height positions 6
Grass collection capacity 1.6 bushels(55L)
Battery type Lead acid
Battery model WA3220
Charging time 16 hrs
Charger model WA3722
Charger rating Input: AC 120V~60Hz, 45W, Output: 42.5V 1.0A
Machine weight 87lbs(39.5kg)
ACCESSORIES
Grass collection bag 1
Charger (WA3722) 1
Side-discharge chute 1
Mulching insert 1
Battery pack (WA3220) 1
Safety key 1
We recommend that you purchase your accessories from the same store that sold you the tool.
Use good quality accessories marked with a well-known brand name. Choose the type according
to the work you intend to undertake. Refer to the accessory packaging for further details. Store
personnel can assist you and offer advice.
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36V 19” Cordless lawn mower EN
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READ ALL INSTRUCTIONS
WARNING: When using electric lawn
mowers, basic safety precautions should
always be followed to reduce the risk of fire,
electric shock, and personal injury, including
the following:
WARNING: Risk of injury could occur if
the lawn mower is operated without the
catcher assembly attached.
WARNING: the use of any other
accessory or attachment might increase
the risk of injury
CAUTION: For battery-operated lawn
mowers, use only identical replacement
batteries and specifying the battery type
and manufacturer, and devices for retaining
extension cords are available.
FOR ALL LAWN MOWERS
1) Avoid Dangerous Environment - Don’t use
lawn mowers in damp or wet locations.
2) Don’t Use In Rain.
3) Keep Children Away - All visitors should be
kept a safe distance from work area.
4) Dress Properly - Do not wear loose clothing
or jewelry. They can be caught in moving
parts. Use of rubber gloves and footwear is
recommended when working outdoors.
5) Use Safety Glasses - Always use face or
dust mask if operation is dusty.
6) Use Right Appliance - Do not use lawn
mower for any job except that for which it
is intended.
7) Don’t Force Lawn Mower - It will do the job
better and safer at the rate for which it was
designed.
8) Don’t Overreach - Keep proper footing and
balance at all times.
9) Stay Alert - Watch what you are doing.
Use common sense. Do not operate lawn
mower when you are tired.
10) Store Idle Lawn Mower Indoors - When not
in use, lawn mower should be stored in
an indoor dry and locked-up place - out of
reach of children.
11) Maintain Lawn Mower With Care - Keep
cutting edges sharp and clean for best and
safest performance. Follow instructions
for lubricating and changing accessories.
Inspect lawn mower cord periodically and if
damaged, have it repaired by an authorized
service facility. Inspect extension cords
periodically and replace if damaged. Keep
handles dry, clean, and free from oil and
grease.
12) Keep guards in place and in working order.
13) Keep blades sharp.
14) Keep hands and feet away from cutting
area.
15) Objects struck by the lawn mower blade
can cause severe injuries to persons. The
lawn should always be carefully examined
and cleared of all objects prior to each
mowing.
16) If lawn mower strikes a foreign object,
follow these steps:
i) Stop lawn mower. Release the switch.
ii) Inspect for damage.
iii) Repair any damage before restarting
and operating the lawn mower.
17) Use identical replacement blades only.
SUPPLEMENT SA-BATTERY-OPERATED
LAWN MOWERS
a) Do not charge lawn mower in rain, or in
wet locations.
b) Do not use battery-operated lawn mower in
rain.
c) When replacing batteries, all batteries
should be replaced at the same time.
Mixing fresh and discharged batteries
could increase internal cell pressure and
rupture the discharge battery(ies). (Applies
to products employing more than one
separately replaceable primary battery.)
d) When inserting batteries into this product,
the proper polarity or direction must be
observed. Reverse insertion of batteries
can result in leakage or explosion. (Applies
to product employing more than one
separately replaceable primary battery.)
e) Remove or disconnect battery before
servicing, cleaning, or removing material
from the lawn mower.
FOR ALL BATTERY-OPERATED
PRODUCTS EMPLOYING A DETACHABLE
OR SEPARABLE BATTERY
a) Use only the following type and model
battery(ies): WA3220
36V 19” Cordless lawn mower EN
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b) Do not dispose of the battery(ies) in a
fire. The cell may explode. Check with
local codes for possible special disposal
instructions.
c) Do not open or mutilate the battery(ies).
Released electrolyte is corrosive and may
cause damage to the eyes or skin. It may
be toxic if swallowed.
d) Exercise care in handling batteries in order
not to short the battery with conducting
materials such as rings, bracelets, and
keys. The battery or conductor may
overheat and cause burns.
FOR A BATTERY-OPERATED LAWN
MOWER EMPLOYING A VENTED WET
CELL BATTERY SUPPLY INTENDED TO BE
INITIALLY OR PERIODICALLY FILLED BY
THE USER:
CAUTION: The electrolyte is a dilute
sulfuric acid that is harmful to the skin
and eyes. It is electrically conductive and
corrosive. The following procedures should be
observed:
a) Wear full eye protection and protective
clothing.
b) If electrolyte contacts the skin, wash it off
immediately with water.
c) If electrolyte contacts the eyes, flush
thoroughly and immediately with water.
Seek medical attention.”
SAFE PRACTICES FOR WALK-BEHIND
MOWERS
I. GENERAL OPERATION
1. Read, understand, and follow all
instructions on the machine and in the
manual(s) before starting.
2. Do not put hands or feet near or under
the machine. Keep clear of the discharge
opening at all times.
3. Only allow responsible adults, who are
familiar with the instructions, to operate
this machine.
4. Clear the area of objects such as rocks,
wire, toys, etc., which could be thrown by
the blade. Stay behind the handle when the
engine (motor) is running.
5. Be sure the area is clear of bystanders
before operating. Stop machine if anyone
enters the area.
6. Do not operate machine barefooted or
while wearing sandals. Always wear
substantial footwear.
7. Do not pull machine backward unless
absolutely necessary. Always look down
and behind before and while moving
backward.
8. Never direct discharged material toward
anyone. Avoid discharging material against
a wall or obstruction. Material may ricochet
back toward the operator. Stop the blade
when crossing gravel surfaces.
9. Do not operate machine without the entire
grass catcher, discharge guard, rear guard,
or other safety protective devices in place
and working.
10. Never leave a running machine unattended.
11. Stop the engine (motor) and wait until the
blade comes to a complete stop before
cleaning the machine, removing grass
catcher, or unclogging the discharge guard.
12. Operate machine only in daylight or good
artificial light.
13. Do not operate machine while under the
influence of alcohol or drugs.
14. Never operate mower in wet grass. Always
be sure of your footing; walk; never run.
15. Disengage the drive system, if so equipped,
before starting the engine (motor).
16. If the machine should start to vibrate
abnormally, stop the engine (motor) and
check for the cause immediately. Vibration
is generally a warning of trouble.
17. Always wear eye protection when
operating machine.
18. See manufacturer’s instructions for proper
operation and installation of accessories.
Only use accessories approved by the
manufacturer.
II. SLOPE OPERATION
Slopes are a major factor related to slip and
fall accidents, which can result in severe
injury. Operation on all slopes requires extra
caution. If you feel uneasy on a slope, do not
mow it.
1. Mow across the face of slopes; never up
and down. Exercise extreme caution when
changing direction on slopes.
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2. Watch for holes, ruts, bumps, rocks, or
other hidden objects. Uneven terrain could
cause a slip and fall accident. Tall grass can
hide obstacles.
3. Do not mow on wet grass or excessively
steep slopes. Poor footing could cause a
slip and fall accident.
4. Do not mow near drop-offs, ditches, or
embankments. You could lose your footing
or balance.
III. CHILDREN
Tragic accidents can occur if the operator is
not alert to the presence of children. Children
are often attracted to the machine and the
mowing activity. Never assume that children
will remain where you last saw them.
1. Keep children out of the mowing area and
under the watchful care of a responsible
adult other than the operator.
2. Be alert and turn mower off if a child enters
the area.
3. Never allow children to operate the
machine.
4. Use extra care when approaching blind
corners, shrubs, trees, or other objects that
may block your view of a child.
IV. SERVICE
GENERAL SERVICE
1. Keep all nuts and bolts tight to be sure the
equipment is in safe working condition.
2. Never tamper with safety devices. Check
their proper operation regularly.
3. Keep machine free of grass, leaves, or
other debris build-up.
4. If you strike a foreign object, stop and
inspect the machine. Repair, if necessary,
before starting.
5. Never make any adjustments or repairs
with the engine (motor) running.
6. Check grass catcher components and the
discharge guard frequently and replace
with manufacturer’s recommended parts,
when necessary.
7. Mower blades are sharp. Wrap the blade or
wear gloves, and use extra caution when
servicing them.
8. Maintain or replace safety and instruction
labels, as necessary.
SAVE THESE INSTRUCTIONS
Safe Operation Practices for Walk-Behind
Mowers
1. Safety Instructions
1.1 Training
a) Read the operating and service instruction
manual carefully. Be thoroughly familiar
with the controls and the proper use of the
equipment.
b) Never allow children to operate a power
mower.
c) Keep the area of operation clear of all
persons, particularly small children, and
pets.
d) Do not use a mower for any job except that
for which it is intended.
1.2 Preparation
a) Thoroughly inspect the area where the
equipment is to be used and remove all
stones, sticks, wires, bones, and other
foreign objects.
b) Do not operate the equipment when
barefoot or wearing sandals. Always wear
substantial footwear.
c) Disengage the self-propelled mechanism
or drive clutch on units so equipped before
starting the motor.
d) Never attempt to make a wheel height
adjustment while the motor is running.
e) Mow only in daylight or in good artificial
light.
f) Never operate the equipment on wet grass.
Always be sure of your footing. Keep a firm
hold on the handle and walk, never run.
1.3 Operation
a) Do not put hands or feet near or under
rotating parts. Keep clear of the discharge
opening at all times.
b) Stop the blade(s) when crossing gravel
drives, walks, or roads.
c) After striking a foreign object, stop the
motor, unplug, thoroughly inspect the
mower for any damage, and repair the
damage before restarting and operating
the mower.
d) If the equipment should start to vibrate
abnormally, stop the motor and check
immediately for the cause. Vibration is
generally a warning of trouble.
e) Stop the motor and unplug whenever you
36V 19” Cordless lawn mower EN
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leave the equipment, before cleaning the
mower housing, and before making any
repairs or inspections.
f) Shut the motor off and wait until the blade
comes to a complete stop before removing
the grass catcher or before unclogging the
chute.
g) Mow across the face of slopes, never up
and down. Exercise extreme caution when
changing direction on slopes. Do not mow
excessively steep slopes.
h) Never operate the mower without proper
guards, plates, or other safety protective
devices in place.
i) Do not wash with a hose, avoid getting
water in motor and electrical connections.
1.4 Maintenance
a) Check the blade and the engine mounting
bolts at frequent intervals for proper
tightness.
b) Keep al nuts, bolts, and screws tight to
be sure the equipment is in safe working
condition.
c) Check bag frequently for deterioration and
wear, and replace worn bags. Check that
replacement bags comply with the original
manufacturer’s recommendations or
specifications.
d) Replace the blade if it is bent or cracked.
An unbalanced blade causes vibration
that could damage the motor drive unit or
cause personal injury.
e) Sharpen a dull blade equally at each end to
maintain the balance.
f) Clear the blade thoroughly and check its
balance by supporting it horizontally on a
thin nail through its centre hole. The mail
should also be in a horizontal position. If
either end of the blade rotates downward,
remove some metal from the heavy or
lower end until the blade is balanced. It is
balanced when neither end drops.
SYMBOLS
Safety alert
Read the operator’s manual
Blade continues to rotate after
the machine is switched off. Wait
until all machine components
have completely stopped before
touching them.
Do not expose to rain or water
Do not burn
Do not dispose of batteries. Return
exhausted batteries to your local
collection or recycling point.
Contains Pb battery. Battery must
be recycled or disposed of properly.
Slip on slope
KEEP HANDS AND FEET AWAY
GARDER MAINS ET PIEDS À DISTANCE
CPSC Danger label
Severing of toes or fingers-Rotary
mower blade.
Keep bystanders/children away.
Thrown objects from mower deck.
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CHARGER SAFETY RULES
1. Plug charger directly into an electrical
outlet. DO NOT ABUSE THE CORD. Never
carry charger by cord. Do not disconnect the
charger from the outlet or mower by pulling it
by the cord.
2. CAUTION: To reduce the risk of fire,
electrical shock, or personal injury do
not attempt to use this charger with any other
product.
Likewise, do not attempt to charge the mower
with any other charger.
3. Do not service mower with charger or safety
key installed.
4. Do not operate a damaged charger. Replace
damaged cords or charger immediately by
calling the WORX Helpline at 1-866-354-9679.
5. Always charge the mower in a dry area
protected from the weather. Do not expose
the mower or charger to rain. Do not charge
in wet locations. Do not charge mower when
temperature is above 104°F (40°C) or below
41°F (5°C).
6. Keep the mower and charger away from
water, heat sources, (Such as radiators,
heaters, stoves...etc.) flames, or chemicals.
Be careful not to damage the charger cord, by
keeping cord away from sharp edges.
CHARGING PROCEDURE (See A, B1, B2)
1. Charging can be carried out either with the
battery FITTED (See A) or REMOVED from the
machine (See B1).
2. Plug the charger connector into the
receptacle on the battery. (See A, B1).
3. Insert the plug of the charger into the wall
receptacle.
4. Press the button (f) on the charger for
several seconds till the red light come on
indicating that you have power and the battery
is being charged.(See B2).
5. The red light (19) will turn off and the green
light (18) will come on when charging is
complete (approximately 16 hours to charge a
fully discharged battery) (See B2)
6. After the battery is fully charged the green
light will turn on and stay it for 15 seconds
to indicate a full charge. After 15 seconds the
green light and charges will turn off to save
power.
NOTE: If the battery is defective, the red
light on the charger will flash. The lights
will only function when the charger is
connected to both the battery and wall
receptacle.
7. The charger is a smart charger and can stay
connects to the battery and wall receptacle
for extant periods of time without fear of
damaging the battery or charger. The charger
will automatically cycle on and off periodically
to ensure the battery is fully charged.
BATTERY CARE
The battery in your cordless lawnmower is a
36-volt sealed lead acid system. The mower
can be stored in any position without fear of
leakage.
• Foroptimalbatterylifeandperformance
the battery should be fully charged every 2
months during storage
• Foroptimalbatterylifeandperformance
the battery should be fully charged after
each use
• Storethebatteryinacooldrylocation.
• Thebatterycanbesafelystoreddownto
14°F (-10°C).
• Thebatterydoesnotneedtobefully
discharged before recharging.
• Initially2to3chargingcyclesmay
be required after purchase to achieve
maximum run time capacity.
The battery is maintenance free.
ADDITIONAL BATTERIES can be obtained
from the Customer Helpline 1-866-354-
9679.
ASSEMBLY/ADJUSTMENT
WARNING! Do not connect the battery
and/or the safety key before product is
completely assembled.
1. ASSEMBLING THE HANDLE
(See C1, C2)
Remove the packaging endcap (See C1).
Raise the handle section into place and secure
by tightening the two Lock cam levers.
Check that the handle is FULLY secured.
The cam lever (5) pressure can be adjusted
by adjusting the screw knob (14) clockwise/
36V 19” Cordless lawn mower EN
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counter-clockwise. DO NOT OVER TIGHTEN
2. ASSEMBLING THE GRASSBAG (See
D1, D2 & D3)
1) Before starting to assemble the grass bag
(a) to the frame (b), check that the grass bag is
positioned to slip over the frame.
2) Slide the grass bag onto the frame.
3) Assemble the top clips to the frame, then
assemble the two side clips and the bottom
clip last.
3. FITTING/REMOVING BATTERY
(See E1, E2)
REMOVING BATTERY
Disconnect the connector (c), then rotate the
battery locking knob (d) counter-clockwise.
Remove the battery by lifting it out of the
mower by the battery handle. (See E2)
NOTE: Be careful not to drop the battery onto
your foot or on the ground when removing it.
FITTING BATTERY
Put the battery into the battery container,
press the battery connector (c) and then rotate
the battery locking knob (d). (See E1)
4. HANDLE ADJUSTMENT (See F)
The upper handle can be adjusted to 3
different height positions. Release the locking
cam lever, set the upper handle to one of the
three height positions, and make sure to insert
the pin into the hole. Then reset the locking
cam lever.
Note: Always check that the upper handle is
fixed firmly.
ensure that it is completely installed.
REMOVING/EMPTYING
Lift the safety guard and hold it up. The grass
bag will drop automatically.
6. ADJUSTING THE CUTTING HEIGHT
(See H)
WARNING! Stop, release switch lever
and wait until the motor stops before
adjusting height. The blades continue to rotate
after the machine is switched off, a rotating
blade can cause injury.
CAUTION: Do not touch rotating blade.
For the first cutting of the season, a high
cutting adjustment should be selected.
The lawnmower can be set to 6 cutting heights
between 1.5” (38mm) and 3.5” (88mm).
For this purpose, move the cutting height
adjustment lever outwards then adjust to the
preferred position.
OPERATION
1. STARTING AND STOPPING (See I1, I2)
WARNING! The blade continues
to rotate for a few seconds after the
machine is switched off. Allow the motor/blade
to stop rotating before switching “on” again.
Do not rapidly switch off and on.
STARTING:
5. INSTALLING THE GRASS BAG (See
G1, G2 & G3)
FITTING
1. Turn the mower off, wait until blade stops
and remove safety key.
2. Raise the safety flap and hold it up, ensure
that the mulching insert has been removed.
3. Pick up the grass bag by the handle, and
position grass bag on the lower hooks (e) on
the mower deck.
4. Release the safety guard to lock the grass
bag into position. Ensure the grass bag is
installed securely.
NOTE: Depress the grass bag slightly to
WARNING! The battery is disconnected
from your lawn mower and you must
insert the connector into the battery socket
before use.
1. Insert safety key (3) into the housing of the
switch box.
2. Push down the key, until safety key is fully
seated inside housing.
3. Press and hold the safety key, squeeze the
switch lever bar (2) towards the handle and
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the mower will start.
4. Release the safety key.
STOPPING
Release the switch lever bar (2).
2. BATTERY STATUS LED’S (See J)
NOTE: Battery Status LED’s are not active in
charging mode. The Status LED’s will indicate
the battery condition when the button on the
battery is pressed.
The LED’s constantly senses and displays the
battery condition as follows:
Press the button “POWERTEST”, the light
button is illuminated.
When the three green lights are illuminated,
the battery is in a highly charged condition.
When two lights ( ) are illuminated, the
battery is in a moderately charged condition.
When only one green light ( ) is illuminated,
the battery charge is depleted.
Before using your new mower for the first
time, it is recommended that the unit be
charged overnight to ensure that the battery is
fully charged.
IMPORTANT
When only one light is illuminated,
your battery is overly discharged, even
though the mower may still be capable
of cutting grass. Continuing to operate
your lawnmower with the battery in this
discharged condition may reduce the life
and performance of your battery.
3. REMOVING MULCHING INSERT
(See K1)
To remove the mulching insert (12) so that
you can bag the grass or discharge with the
optional discharge chute, follow the steps
listed below:
1. Shut the mower off, wait until the blade
stops and remove the safety key.
2. Raise the safety guard and hold it up.
3. Grasp the middle of the insert, lift and pull
out the mulching insert completely.
4. The safety guard is spring loaded. When
you release it, the guard will return to the
closed position.
4. INSTALLING MULCHING INSERT
(See K2)
1. Turn the mower off, wait until the blade
stops and remove the safety key.
2. Raise the safety guard and hold it up.
3. Slide the mulching insert (12) into the
discharge opening until it is firmly in contact
with the deck.
4. Release safety guard and ensure it is
properly closed.
5. WORK MODE DIAL (See L)
Status1: QUIET mode
Select QUIET mode (17) when mowing in
everyday conditions, removing approximately
1 inch of grass at a time.
Status2: POWER mode
Set the dial to POWER mode (17) when
cutting dense or overgrown grass.
6. INSTALLING SIDE-DISCHARGE CHUTE
(See M1 & M2)
Using the mulching insert and side-discharge
chute (13), the grass can be discharged from
the side of the machine.
To assemble the side-discharge insert, raise
the side-discharge cover (9) and hold it up,
position the side-discharge chute (13) onto the
hooks, then release the cover to lock the sidedischarge insert into position.
7. MOWING TIPS
NOTE: ALWAYS INSPECT AREA WHERE
MOWER IS TO BE USED AND REMOVE
ALL STONES, STICKS, WIRE, METAL
AND OTHER DEBRIS WHICH MIGHT BE
THROWN BY THE ROTATING BLADE.
1. Mow across the face of slopes, never upand-down. Exercise extreme caution when
changing direction on slopes. Do not mow
excessively steep slopes. Always maintain
good footing.
2. Release switch lever to turn mower “OFF”
when crossing any graveled area (stones can
be thrown by the blade).
3. Set mower at highest cutting height when
mowing in rough ground or in tall weeds.
Removing too much grass at one time can
cause circuit breaker to trip, which stops
mower.
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