Snapper 20SPWM48 User manual

Not for
Reproduction
20" 48V Cordless Self-propelled Mower
2691565 & 80076017 / 20SPWM48
1688022 / 20SPWM48K
Read all safety rules and instructions carefully before operating this tool.
Owner’s Manual
TOLL-FREE HELPLINE: 1-800-317-7833
www.snapper.com

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Product Specications..............................................................................2
Safety Information....................................................................................3
Symbols...................................................................................................8
Features and Controls............................................................................10
Assembly ...............................................................................................11
Operation...............................................................................................18
Maintenance ..........................................................................................25
Environmentally Safe Battery Disposal...................................................29
Troubleshooting......................................................................................30
Warranty ................................................................................................31
Exploded View .......................................................................................34
Parts List................................................................................................35
PRODUCT SPECIFICATIONS
48 V 20" CORDLESS SELF-PROPELLED MOWER
Battery type ................................................................48 V Lithium-ion
No-load speed .....................................................................2800 RPM
Self propelled speed ....................................2.3-4.44 fps (0.7-1.35 m/s)
Deck size .........................................................................20” (50.8 cm)
Height adjustments .....................................1 3/8 - 3 3/4” (3.5 - 9.5 cm)
Torque (for the blade bolt)..................................24-27 lb-ft (33-37 Nm)
Functions .............................. 3-in-1: Mulch, side discharge or rear bag
Weight (without battery) ................................................60 lbs (27.2 kg)
CONTENTS
Disclaimer: *Maximum initial battery voltage (measured without a
workload) is 48 volts. Nominal voltage is 43.

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SAFETY INFORMATION
READ ALL INSTRUCTIONS
WARNING
This mower is capable of amputating hands and feet and throwing objects.
Failure to observe the following safety instructions could result in serious
injury or death.
WARNING
When using electric lawn mowers, basic safety precautions should always be
followed to reduce the risk of re, electric shock, and personal injury, including
the following:
1. GENERAL OPERATION
•Avoid Dangerous Environment – Don’t use lawn mowers in damp or wet
locations.
•Don’t Use In Rain.
•Keep Children Away – All visitors should be kept a safe distance from work
area.
•Dress properly. Do not wear loose clothing or jewelry that can get caught
in moving parts. The wearing of protective gloves and safety footwear is
recommended.
•Use Safety Glasses – Always use face or dust mask if operation is dusty.
•Use Right Appliance – Do not use lawn mower for any job except that for
which it is intended.
•Don’t Force Lawn Mower – It will do the job better and safer at the rate for
which it was designed.
•Don’t Overreach – Keep proper footing and balance at all times.
•Stay Alert – Do not operate the mower when you are tired. Pay attention to
what you are doing. Use common sense.
•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.
•Maintain Lawn Mower With Care – Keep cutting edges sharp and clean for
best and safest performance.
•Follow instructions for lubricating and changing accessories.
•Keep handles dry, clean, and free from oil and grease.

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SAFETY INFORMATION
•Keep safety devices (guards, shields, switches etc.) in place and working.
•Keep blades sharp.
•Keep hands and feet away from cutting area.
•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.
•If lawn mower strikes a foreign object, follow these steps:
i) Stop lawn mower. Release the switch.
ii) Remove battery.
iii) Inspect for damage.
iv) Repair any damage before restarting and operating the lawn mower.
•Use identical replacement blades only.
•Do not charge lawn mower in rain, or in wet locations.
•Remove or disconnect battery before servicing, cleaning, or removing
material from the lawn mower.
•Use only approved replacement batteries, other batteries may cause injury
or damage to the mower. For use only with Briggs & Stratton batteries
BSB2AH48 or BSB5AH48 and Briggs & Stratton charger BS2AC48.
•Do not dispose of the battery in a re. The cell may explode. Check with
local codes for possible special disposal instructions.
•Do not open or mutilate the battery. Released electrolyte is corrosive and
may cause damage to the eyes or skin. It may be toxic if swallowed.
•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.
•Read, understand, and follow all instructions on the machine and in the
manual(s) before starting.
•Only allow responsible adults who are familiar with the instructions to
operate this machine.
•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.
•Be sure the area is clear of bystanders before operating. Stop machine if
anyone enters the area.

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SAFETY INFORMATION
•Do not operate machine barefooted or while wearing sandals. Always wear
substantial footwear.
•Do not pull machine backward unless absolutely necessary. Always look
down and behind before and while moving backward.
•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.
•Do not operate machine without the entire grass catcher, discharge guard,
rear guard, or other safety protective devices in place and working.
•Never leave a running machine unattended.
•Stop the motor and wait until the blade comes to a complete stop before
removing the grass catcher or unclogging the chute.
•Operate machine only in daylight or good articial light.
•Do not operate machine while under the inuence of alcohol or drugs.
•Never operate mower in wet grass. Always be sure of your footing; walk,
never run.
•Disengage the drive system, if so equipped, before starting the motor.
•If the machine should start to vibrate abnormally, stop the motor and check
for the cause immediately. Vibration is generally a warning of trouble.
•Always wear eye protection when operating machine.
•See manufacturer’s instructions for proper operation and installation of
accessories. Only use accessories approved by the manufacturer.
2. 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.
•Mow across the face of slopes; never up and down. Exercise extreme
caution when changing direction on slopes.
•Watch for holes, ruts, bumps, rocks, or other hidden objects. Uneven terrain
could cause a slip and fall accident. Tall grass can hide obstacles.
•Do not mow on wet grass or excessively steep slopes. Poor footing could
cause a slip and fall accident.

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SAFETY INFORMATION
3. 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.
•Keep children out of the mowing area and under the watchful care of a
responsible adult.
•Stay alert, and turn the mower off if a child or any other person enters the
mowing area.
•Never allow children to operate the machine
•Use extreme care when approaching blind corners, doorways, shrubs,
trees, or other objects that may obscure your view of a child who may run
into the path of the mower.
4. SERVICE
•Keep all nuts, bolts, and screws tight in order to be sure that the equipment
is in safe working condition.
•Never remove or tamper with safety devices. Check their proper operation
regularly. Never do anything to interfere with the intended function of a
safety device or to reduce the protection provided by a safety device.
•Keep machine free of grass, leaves, or other debris build up. Allow machine
to cool before storing.
•After striking a foreign object, stop the motor. Thoroughly inspect the mower
for any damage. Repair any damage before operating the mower.
•Never make any adjustments or repairs with the motor running.
•Always remove battery pack from mowers before adjusting, cleaning, or
repairing.
•Check grass catcher components and the discharge guard frequently and
replace with manufacturer’s recommended parts, when necessary.
•Mower blades are sharp, and can cut. Wrap the blades or wear gloves, and
use extra caution when servicing.
•Maintain or replace safety and instruction labels, as necessary.

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SAFETY INFORMATION
WARNING(PROPOSITION65)
This product contains a chemical known to the state of California to cause
cancer, birth defects or other reproductive harm.
Some dust created by power sanding, sawing, grinding, drilling and other
construction activities contains chemicals known to cause cancer, birth
defects or other reproductive harm. Some examples of these chemicals are:
• Lead from lead-based paints,
• Crystalline silica from bricks and cement and other masonry products, and
• Arsenic and chromium from chemically-treated lumber.
Your risk of exposure to these chemicals varies depending on how often you do
this type of work. To reduce your exposure to these chemicals, work in a well-
ventilated area, and work with approved safety equipment, such as dust masks
that are specially designed to lter out microscopic particles.
SAVE THESE INSTRUCTIONS

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Some of the following symbols may be used on this product. Please study
them and learn their meaning. Proper interpretation of these symbols will
allow you to operate the product better and safer.
SYMBOL NAME DESIGNATION/EXPLANATION
V Volts Voltage
A Amperes Current
Hz Hertz Frequency (cycles per second)
W Watt Power
min Minutes Time
Alternating
Current Type of current
Direct
Current Type or a characteristic of current
n
o
No Load
Speed Rational speed, at no load
Class II
Construction Double-insulated construction
/min Per Minute Revolutions, strokes, surface speed, orbits
etc., per minute
Wet
Conditions
Alert
Do not expose to rain or use in damp
locations.
Read The
Operator’s
Manual
To reduce the risk of injury,user must read
and understand operator’s manual before
using this product.
Safety Alert Precautions that involve your safety.
Eye
Protection
Always wear eye protection with side shields
marked to comply with ANSI Z87.1 when
operating this equipment.
SYMBOLS

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SYMBOLS
Keep Hands
and Feet
Away
Keep hands and feet away from blade and
cutting area.
No Reach Do not reach hands or feet under mower
deck.
No Slope Do not operate on inclines greater than 15º.
Mow across the face of slopes, never up and
down.
Keep
Bystanders
Away Keep all bystanders at least 100 ft. away.
Ricochet Pay attention that bystanders are not injured through foreign objects thrown from the
mower.
The following signal words and meanings are intended to explain the levels of
risk associated with this product.
SYMBOLS SIGNAL MEANING
DANGER Indicates an imminently hazardous situation,
which, if not avoided, will result in death or
serious injury.
WARNING Indicates a potentially hazardous situation,
which, if not avoided, could result in death or
serious injury.
CAUTION Indicates a potentially hazardous situation,
which, if not avoided, may result in minor or
moderate injury.
CAUTION (Without Safety Alert Symbol) Indicates a
situation that may result in property damage.
SAVE THESE INSTRUCTIONS

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Fig. 1
Read this operator's manual and safety rules before operating your mower.
Compare the illustration in Figure 1 to your mower in order to familiarize
yourself with the location of various controls and adjustments. Save this
manual for future reference.
FEATURES AND CONTROLS
Lower handle
Grass catcher bag
Rear cover
Height adjustment
lever Battery door
Side discharge
cover
Rear wheel
Mulching plug
Side
discharge
chute
Front wheel
Safety lock-out
button
Bail lever
Upper handle
Self-Propel
Speed
Controls
Self propel
lever

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UNPACKING
•Carefully remove the product and any accessories from the box. Make sure
that all items listed in the packing list are included.
•Inspect the product carefully to make sure no breakage or damage occurred
during shipping.
•Do not discard the packing material until you have carefully inspected and
satisfactorily operated the product.
•If any parts are damaged or missing, please call 1-800-317-7833 for
assistance.
WARNING
If any parts are damaged or missing do not operate this product until the parts
are replaced. Using a product with damaged or missing parts could result in
serious personal injury.
WARNING
Do not attempt to modify this product or create accessories not recommended
for use with this product. Any such alteration or modication is misuse and
could result in a hazardous condition leading to possible serious personal
injury.
WARNING
Do not insert battery until assembly is complete and you are ready to mow.
Failure to comply could result in accidental starting and possible serious
personal injury.
WARNING
To prevent accidental starting that could cause serious personal injury, always
remove the battery pack from the product when assembling parts.
WARNING
Never operate the mower without the proper safety devices in place and
working. Never operate the mower with damaged safety devices. Operation
of this product with damaged or missing parts could result in serious personal
injury.
ASSEMBLY

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ASSEMBLY
Fig. 2
UNFOLDING AND ADJUSTING LOWER HANDLE
(See Figure 2)
WARNING
Folding or unfolding the handle improperly can damage the cables, causing
an unsafe operating condition.
• Do not damage the cables when folding or unfolding the handle.
• If a cable is damaged, contact an Authorized Service Dealer.
•Pull and rotate the handle knobs (1) 90° on both sides to loosen the lower
handles (2) on both sides.
•Move the lower handles to the operating position. You may raise or lower
the handle to a position comfortable for you. There are 3 positions (3) for
you to choose. Release the handle knobs to lock the lower handle into
position.
Note: Ensure both sides are set at the same position for proper assembly.
(1)
(2)
(3)

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INSTALLING THE UPPER HANDLE (See Figure 3)
•Align the mounting holes on the upper handle (1) and the lower handle
(2). Insert the bolts (3) and use the knobs (4) to tighten them. Repeat the
operation on the other side.
ASSEMBLY
Fig. 3
(1)
(2)
(4) (4)
(3) (3)

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ASSEMBLY
Fig. 4
(1)
(5)
(2)
(3)
(4)
INSTALLING THE GRASS CATCHER BAG (See Figure 4)
•Lift the rear cover (1).
•Lift the grass catcher by its handle (2) and place under the rear cover so that
the hooks (3) on the grass catcher (4) are seated on the door rod (5).
•Release the rear cover. When installed correctly, the hooks on the grass
catcher will extend through the openings on the rear cover.
NOTE: When using the grass catcher, do not install either the side discharge
deector or the mulching plug.

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(2) Fig. 5
ASSEMBLY
INSTALLING/REMOVING THE MULCHING PLUG (See Figure 5)
•To remove the mulching plug, lift the rear cover (1).
•Grasp the handle (2) of the mulching plug. Lift and pull the mulching plug
out using the handle.
•The mulching plug (3) is inserted at an angle, so it requires some force to
remove it.
•The mulching plug must be removed in order to install the grass catcher
bag.
•The mulching plug must be re-installed when the grass catcher bag is
removed.
(3)
(1)

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Fig. 6
ASSEMBLY
INSTALLING SIDE DISCHARGE CHUTE (See Figure 6)
•Lift the side discharge cover (1).
•Align the grooves (2) on the discharge chute (3) with the pins (4) on the
underside of the discharge cover (1).
•Lower the discharge chute until the hooks on the mower deck are secured
in the openings in the discharge chute.
•Release the side discharge cover.
(1)
(2)
(4)
(3)

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Fig. 7
ASSEMBLY
TO INSTALL BATTERY PACK (See Figure 7)
•Lift and hold up the battery door (1).
•Align the battery (2) with the mower’s battery port.
•Make sure the battery release button (3) snaps in place and that battery is
fully seated and secure in the mower before beginning operation.
•Insert the safety key (4). If the machine is not going to be used immediately,
do not insert the safety key.
•Close the door.
TO REMOVE BATTERY PACK (See Figure 7)
•Release the bail lever to stop the mower.
•Open the battery door. Remove the safety key.
•Press the battery release button (3) on the mower. This will cause the
battery to raise out of the tool slightly.
•Remove battery from the mower.
(3)
(1)
(2)
(4)

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OPERATION
STARTING/STOPPING THE MOWER (See Figure 8)
To start the motor:
•Open the battery door. Insert the battery. Insert the safety key.
•Press and hold the safety lock-out button (1).
•Pull the bail lever (2) upward to the handle to start the mower and release
the button.
To stop the motor:
•Release the bail lever.
SELF-PROPELLED MOWING (See Figure 8)
To engage the self-propelled feature:
•Open the battery door. Insert the battery. Insert the safety key.
•Pull the self propel lever (3) upward to meet the handle.
To disengage the self-propelled feature:
•Release the self propel lever.
To adjust the speed of self-propelled feature:
•Pull the variable speed control lever (4) towards the Rabbit Symbol to
increase speed.
•Push the variable speed control lever (4) towards the Turtle Symbol to
decrease speed.
Fig. 8
(1)
(2)
(3)
(4)

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OPERATION
Soft-Start
This LI-ION mower is equipped with a “soft-start” feature. When initially
starting up, the mower will take approx. 3 seconds to get up to full speed. If
the mower does not initially start: Remove the battery and check under the
mower deck to ensure there is nothing obstructing the blade and that the
blade can spin freely by hand. Even a small amount of grass on start up will
prevent the “softstart” from turning the mower on.
CAUTION
Do not attempt to override the operation of the safety lock-out button or bail
lever.
WARNING
The operation of any mower can result in foreign objects being thrown into the
eyes, which can cause severe eye damage. Always wear safety glasses while
operating the mower and while performing any adjustments or repairs.
INSPECT THE CUTTING AREA. Remove all stones, sticks, wire, bones, and
other debris that might be thrown by the rotating blades.

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CUTTING HEIGHT ADJUSTMENT (See Figure 9)
When shipped, the wheels on the mower are set to a low-cutting position.
Before using the mower for the rst time, raise the cutting position to the
height best suited for your lawn. The average lawn should be between 1 1/2"
to 2" (3.8 to 5 cm) during cool months and between 2" and 3 1/2" (5 cm to 8.3
cm) during hot months.
To adjust the blade height:
•To raise the blade height, grasp the height adjustment lever (1) and move it
toward the back of the mower.
•To lower the blade height, grasp the height adjustment lever (1) and move it
toward the front of the mower.
OPERATION
Fig. 9
Height Adjustments 1 3/8 - 3 3/4"
1st setting 1 3/8"
2nd setting 1 7/8"
3th setting 2 1/8"
4th setting 2 5/8"
5th setting 3"
6th setting 3 3/8"
7th setting 3 3/4"
(1)