Briggs & Stratton 7800950-01, 7800950-00, 7800951-00, 7800951-01, 7800952-00 Operator's Manual
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Operator’s Manual - Rear Engine Rider Mower
fr
Manuel d’utilisation - Tracteur de pelouse à moteur arrièr
Copyright © 2015 Briggs & Stratton Corporation.
Milwaukee, WI, USA. All rights reserved.
BRIGGS & STRATTON POWER PRODUCTS is a registered
trademark of Briggs & Stratton Corporation.
7106180USCN
Revision B
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Thank you for purchasing this quality-built Rear Engine
Rider. We’re pleased that you’ve placed your confidence in
the brand. When operated and maintained according to the
manuals, your product will provide many years of dependable
service.
The manuals contain safety information to make you aware of
the hazards and risks associated with the unit and how to
avoid them. This Rear Engine Rider was designed to be used
as described in operator’s manual and is not intended for any
other purpose. It is important that you read and understand
the instructions thoroughly before attempting to start or operate this equipment. Save these original instructions for future
reference.
This product requires final assembly before use. Refer to the
setup guide for instructions on final assembly procedures.
Follow the instructions completely.
Products Covered by This Manual
The following products are covered by this manual:
7800950-00, 7800950-01, 7800951-00, 7800951-01,
7800952-00, 7800952-01, 7800953-00, 7800953-01,
7800954-00, 7800954-01
Manual Contents:
Operator Safety ..................................................................9
Features and Controls .................................................... 15
Safety Interlock Systems Checks .................................. 16
Operation ......................................................................... 16
Maintenance .................................................................... 22
Troubleshooting .............................................................. 29
Specifications .................................................................. 30
The images in this document are representative, and are
meant to complement the instructional text they accompany.
Your unit may vary from the images displayed. LEFT and
RIGHT are as seen from the operator’s position.
Operator Safety
WARNING indicates a hazard which, if not avoided, could
result in death or serious injury.
CAUTION indicates a hazard which, if not avoided, could
result in minor or moderate injury.
NOTICE indicates an action that could result in damage to the
product.
Rear Engine Rider Hazard Symbols
General Operator Safety Warning
Symbol Meaning Symbol Meaning
Safety information about hazards that can
result in personal
injury.
Thrown objects
hazard.
Amputation hazard - do not touch
moving parts.
Keep bystanders and children
away.
Fire hazard. Explosion hazard.
Battery explosion
hazard.
Hot surface hazard.
Read and understand the operator’s manual
before operating
or servicing the
unit.
Amputation
hazard - rotating
blade. Keep feet
away.
Amputation
hazard - rotating blade. Keep
hands away.
Toxic fume hazard.
Shock hazard.
Explosion hazard.
Safety Alert Symbol and Signal Words
The safety alert symbol indicates a potential personal
injury hazard. A signal word (DANGER, WARNING, or
CAUTION) is used with the alert symbol to designate a
degree or level of hazard seriousness. A safety symbol may
be used to represent the type of hazard. The signal word
NOTICE is used to address practices not related to personal
injury.
DANGER indicates a hazard which, if not avoided, will
result in death or serious injury.
Shock hazard. Kickback hazard.
Eye protection
recommended.
Remove the key
before performing service.
Ear protection
recommended for
extended use.
Remove the
spark plug wire
before performing
service.
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Symbol Meaning Symbol Meaning
Remove the key
before performing service.
WARNING
This powerful cutting machine is capable of amputating
hands and feet and can throw objects that can cause
injury and damage! Failure to comply with the following
SAFETY instructions could result in serious injury or death
to the operator or other persons. The owner of the machine
must understand these instructions and must allow only
persons who understand these instructions to operate
machine. Each person operating the machine must be of
sound mind and body and must not be under the influence
of any substance, which might impair vision, dexterity or
judgment.
Remove the
spark plug wire
before performing
service.
Carbon Monoxide Warning
WARNING
POISONOUS GAS HAZARD. Engine exhaust contains
carbon monoxide, a poisonous gas that could kill
you in minutes. You CANNOT see it, smell it, or taste
it. Even if you do not smell exhaust fumes, you could
still be exposed to carbon monoxide gas. If you start
to feel sick, dizzy, or weak while using this product,
shut it off and get to fresh air RIGHT AWAY. See a
doctor. You may have carbon monoxide poisoning.
• Operate this product ONLY outside far away from windows, doors and vents to reduce the risk of carbon
monoxide gas from accumulating and potentially being
drawn towards occupied spaces.
• Install battery-operated carbon monoxide alarms or
plug-in carbon monoxide alarms with battery back-up
according to the manufacturer’s instructions. Smoke
alarms cannot detect carbon monoxide gas.
• DO NOT run this product inside homes, garages,
basements, crawlspaces, sheds, or other partiallyenclosed spaces even if using fans or opening doors
and windows for ventilation. Carbon monoxide can
quickly build up in these spaces and can linger for
hours, even after this product has shut off.
• ALWAYS place this product downwind and point the
engine exhaust away from occupied spaces.
Protection for 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. Children who have been
given rides in the past may suddenly appear in the mowing
area for another ride and be run over or backed over by the
machine. 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. DO NOT allow children in yard when machine is operated (even with the blade OFF).
3. DO NOT allow children or others to ride on machine,
attachments or towed equipment (even with the blades
OFF). They may fall and be seriously injured.
4. DO NOT allow pre-teenage children to operate machine.
5. ALLOW only responsible adults & teenagers with mature
judgment under close adult supervision to operate
machine.
6. DO NOT operate blades in reverse unless absolutely
necessary. STOP BLADES. LOOK and SEE behind and
down for children, pets and hazards before and while
backing.
7. USE EXTRA CARE when approaching blind corners,
shrubs, trees, or other objects that may obscure vision.
Protection Against Tip-Overs/Roll-Overs
Slopes are a major factor related to loss-of-control and
tipover/roll-over accidents, which can result in severe injury or
death. All slopes require extra CAUTION. If you cannot back
up the slope or if you feel uneasy on the slope, DO NOT mow
it. Use extra care with grass catchers or other attachments;
these affect the handling and the stability of the machine.
1. DO NOT operate machine on slopes exceeding 10
degrees (18% grade).
2. Turn blades OFF when traveling uphill. Use a slow speed
and avoid sudden or sharp turns.
3. DO NOT operate machine back and forth across face of
slopes. Operate up and down. Practice on slopes with
blades off.
4. AVOID starting, stopping or turning on slopes. If machine
stops going uphill or tires lose traction, turn blades OFF
and back slowly straight down the slope.
5. STAY ALERT for holes and other hidden hazards. Tall
grass can hide obstacles. Keep away from ditches, washouts, culverts, fences and protruding objects.
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6. KEEP A SAFE DISTANCE (at least two mower widths)
away from edge of ditches and other drop offs. The
machine could turn over if an edge caves in.
7. Always begin forward motion slowly and with caution.
8. DO NOT begin forward motion while the machine is rolling backwards. A rearward tip-over may result.
9. Use weights or a weighted load carrier in accordance
with instructions supplied with a grass catcher or other
attachments. DO NOT operate machine on slopes
exceeding 10 degrees (18% grade) when equipped with
grass catcher or other attachments.
10. DO NOT put your foot on the ground to try to stabilize
the machine.
11. DO NOT operate machine on wet grass. Reduced traction could cause sliding.
12. Choose a low enough speed setting so that you will not
have to stop or shift on a slope. Tires may lose traction
on slopes even though the brakes are functioning properly.
13. DO NOT operate machine under any condition where
traction, steering or stability is doubtful.
14. Always keep the machine in gear when going down
slopes. DO NOT shift to neutral (or actuate hydro roll
release) and coast downhill.
15. Machine stability is tested in accordance with the applicable ANSI B71 standard using an operator weight of
200 lbs. To minimize the risk of a tip-over or roll-over,
operators weighing more than 200 lbs. should further limit
the ground speed and the degree of slope to be mowed.
Preparation
1. Read, understand, and follow instructions and warnings
in this manual and on the machine, engine and attachments. Know the controls and the proper use of the
machine before starting.
2. Only mature, responsible persons shall operate the
machine and only after proper instruction.
3. Data indicates that operators age 60 and above, are
involved in a large percentage of mower-related injuries.
These operators should evaluate their ability to operate
the mower safely enough to protect themselves and others from serious injury.
4. Handle fuel with extra care. Fuels are flammable and
vapors are explosive. Use only an approved fuel container. DO NOT remove fuel cap or add fuel with engine
running. Add fuel outdoors only with engine stopped and
cool. Clean spilled fuel from machine. DO NOT smoke.
5. Practice operation of machine with BLADES OFF to learn
controls and develop skills.
6. Check the area to be mowed and remove all objects
such as toys, wire, rocks, limbs and other objects that
could cause injury if thrown by blade or interfere with
mowing.
7. Keep people and pets out of mowing area. Immediately
STOP blades, STOP engine, and STOP machine if anyone enters the area.
8. Check shields, deflectors, switches, blade controls and
other safety devices frequently for proper operation and
location.
9. Make sure all safety decals are clearly legible. Replace if
damaged.
10. Protect yourself when mowing and wear safety glasses,
a dust mask, hearing protection, long pants and substantial footwear.
11. Know how to STOP blades and engine quickly in preparation for emergencies.
12. Use extra care when loading or unloading the machine
into a trailer or truck.
13. Check grass catcher components frequently for signs of
wear or deterioration and replace as needed to prevent
injury from thrown objects going through weak or worn
spots.
Safe Handling of Gasoline
To avoid personal injury or property damage, use extreme
care in handling gasoline. Gasoline is extremely flammable
and the vapors are explosive.
1. Extinguish all cigarettes, cigars, pipes and other sources
of ignition.
2. Use only an approved fuel container.
3. DO NOT remove fuel cap or add fuel with the engine running. Allow the engine to cool before refueling.
4. DO NOT refuel the machine indoors.
5. DO NOT store the machine or fuel container inside
where there is an open flame, spark or pilot light such as
on a water heater or other appliances.
6. DO NOT fill fuel containers inside a vehicle or on a truck
or trailer bed with a plastic liner. Always place the containers on the ground away from the vehicle before filling.
7. Remove gas-powered equipment from the vehicle or
trailer and refuel it on the ground. If this is not possible,
then refuel equipment using a portable container, rather
than a gasoline dispenser nozzle.
8. DO NOT start gas powered equipment in enclosed vehicles or trailers.
9. Keep the nozzle in contact with the rim of the fuel tank or
container opening at all times until fueling is complete.
DO NOT use a nozzle lock-open device.
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10. If fuel is spilled on clothing, change clothing immediately.
11. Never overfill a fuel tank. Replace fuel cap and tighten
securely.
Operation
1. Mount and dismount machine from left side. Keep clear
of discharge opening at all times.
2. Start engine from operator’s seat, if possible. Make sure
blades are OFF and parking brake is set.
3. DO NOT leave machine with engine running. STOP
engine, STOP blades, SET brake, and remove key before
leaving operators position of any reason.
4. DO NOT operate machine unless properly seated with
feet on feet rests or pedal(s).
5. STOP BLADES and ENGINE and make sure blades
have stopped before removing grass catcher or unclogging mower to prevent loss of fingers or hand.
6. Blades must be OFF except when cutting grass. Set
blades in highest position when mowing over rough
ground.
7. Keep hands and feet away from rotating blades underneath deck. DO NOT place foot on ground while
BLADES are ON or machine is in motion.
8. DO NOT operate machine without entire grass catcher or
guards in place and working. DO NOT point discharge at
people, passing cars, windows or doors.
9. Slow down before turning.
10. Watch out for traffic when near or crossing roadways.
11. STOP engine immediately after striking an obstruction.
Inspect machine and repair damage before resuming
operation.
12. Operate machine only in daylight or with good artificial
light.
13. Exercise CAUTION when pulling loads. Limit loads to
those you can safely control and attach loads to hitch
plate as specified with attachment instructions.
14. On slopes, the weight of the towed equipment may
cause loss of traction and loss of control. When towing,
travel slowly and allow extra distance to stop.
15. DO NOT operate engine in enclosed areas. Engine
exhaust gases contain carbon monoxide, a deadly poison.
16. DO NOT discharge material against a wall or obstruction. Material may ricochet back towards the operator.
17. Only use accessories approved by the manufacturer.
See manufacturer’s instructions for proper operation and
installation of accessories.
18. Duration of machine operation may need to be limited
due to exposure to noise and vibration.
19. DO NOT operate machine when the risk of lightning is
present.
Towing
1. Tow only with a machine that has a hitch designed for
towing. DO NOT attach towed equipment except at the
hitch point.
2. Refer to “Towing Implements” in the Operation section
regarding weight limits for towed equipment and towing
on slopes.
3. DO NOT allow children or others on towed equipment.
4. On slopes, the weight of the towed equipment may cause
loss of traction and loss of control. Use caution while
operating on slopes.
5. Travel slowly and allow extra distance to stop.
Maintenance
1. DO NOT store machine or fuel container inside where
fumes may reach an open flame, spark or pilot light such
as in a water heater, furnace, clothes dryer or other gas
appliance. Allow engine to cool before storing machine
in an enclosure. Store fuel container out of the reach of
children in a well ventilated, unoccupied building.
2. Keep engine and machine free of grass, leaves or excess
grease to reduce fire hazard and engine overheating.
3. When draining fuel tank, drain fuel into an approved container outdoors and away from open flame.
4. Check brakes frequently; adjust, repair or replace as
needed.
5. Keep all bolts, nuts and screws properly tight. Check that
all cotter pins are in proper position.
6. Always provide adequate ventilation when running
engine. Exhaust gases contain carbon monoxide, an
odorless and deadly poison.
7. Disconnect negative (black) cable from battery before
performing maintenance or service. Cranking engine
could cause injury.
8. DO NOT work under machine without safety blocks.
9. DO NOT stand unit on end.
10. Service engine and make adjustments only when engine
is stopped. Remove spark plug wire(s) from spark plug(s)
and secure wire(s) away from spark plug(s).
11. DO NOT change engine governor speed settings or
overspeed engine.
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12. Lubricate machine at intervals specified in manual to
prevent controls from binding.
13. Mower blades are sharp and can cut. Wrap the blades
or wear heavy leather gloves and use CAUTION when
handling them.
14. DO NOT test for spark by grounding spark plug next
to spark plug hole; spark plug could ignite gas exiting
engine.
15. Have machine serviced by an authorized dealer at least
once a year and have the dealer install any new safety
devices.
16. Maintain or replace safety and instruction labels as necessary.
17. Use only factory authorized replacement parts or equivalent when making repairs.
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Safety and Instructional Decals Domestic
Before operating your unit, read and understand the safety
and instructional decals (compare Figure 1 with the table
below). The cautions, warnings, and instructions are for your
safety. To avoid personal injury or damage to the unit, understand and follow all the decals.
WARNING
If any safety or instructional decals become worn or damaged, and cannot be read, order replacement decals from
your dealer.
A Clutch/Brake Operation
Blade Engage Operation
General Warnings
G Engine Speed Control
Choke Control (Select
Models)
H Discharge Safety (2 - 1
on each side of deck)
I Cutting Height
Safety and Instructional Decals - ANSI
Export
B Forward Speed (Manual
Drive Models)
C Reverse Speed (Manual
Drive Models)
D Use Caution When
Refueling
A
H
J
1 2
3
5 6
7
4
8
9
10
E Transmission Release
(Hydro Drive Models)
F Weight Limitation
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1. WARNING: Read and understand the Operator’s Manual
before using this machine. Know the location and function
of all controls. Do not operate this machine unless you are
trained.
2. DANGER - LOSS OF TRACTION, SLIDING, STEERING
AND CONTROL ON SLOPES HARZARD: If machine stops
forward motion or starts sliding on a slope, stop the blades
and drive slowly off the slope.
3. DANGER: FIRE HAZARD: Keep unit free of grass, leaves
and excess oil. Do not add fuel while engine is hot or running. Stop engine, remove key and allow to cool for at least
3 minutes prior to adding fuel. Do not add fuel indoors, in an
enclosed trailer, garage or other enclosed areas. Clean up
spilled fuel. Do not smoke while operating this machine.
4. DANGER - TIPPING AND SLIPPING HAZARD: Mow up
and down slopes not across. Do not operate on slopes over
10 degrees. Avoid sudden and sharp (fast) turns while on
slopes.
DANGER - AMPUTATION AND DISMEMBERMENT
5.
HAZARD: To avoid injury from rotating blades and moving
parts, keep safety devices (guards, shields and switches) in
place and working.
6. Do not mow when children or others are around. Never
carry riders especially children even with the blades off. Do
not mow in reverse unless absolutely necessary. Look down
and behind – before and while backing.
7. Consult technical literature before performing technical
repairs or maintenance. When leaving the machine, shutoff
engine, set the parking brake to the lock position and remove
the ignition key.
Keep by-standers and children a safe distance away. Remove
8.
objects that can be thrown by the blade. Do not mow without
discharge chute in place.
9. Do not mow without discharge chute or entire grass catcher
in place.
10. To avoid injury from rotating blades, stay clear of deck edge
and keep others away.
Features and Controls
Compare the features and controls in Figure 2 with the table
below.
Ref. Description Icon(s) Icon Definition
A Operator Seat -- --
B Steering Wheel -
controls direction of
unit
C Engine Speed
Control (hidden
from view) - controls
engine speed
D Cutting Height Adjust
Lever - adjusts cutting height
E Parking Brake Latch
(hidden from view) locks brake
F Blade Control -
engages mower
blade
G Clutch/Brake Pedal
- engages clutch
(manual drive models) and brake
-- --
Choke on (closed)
- if equipped
Engine speed fast
Engine speed low
Cutting height low
Cutting height
high
Parking brake on
(engaged)
Blade on
(engaged)
Blade off (disengaged
Clutch engaged
(manual drive
models)
Brake on
(engaged)
H Headlight (not shown;
select models)
I Mulching Cover -- --
-- --
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Ref. Description Icon(s) Icon Definition
Safety Interlock Systems Checks
J Ignition Switch -
starts engine
K Transmission
Release Lever (hidden from view;
hydro drive models)
- releases transmission so unit can roll
freely
L Reverse Mowing
Switch - temporarily
allows mower blade
to operate with transmission in reverse
M Recoil Start Handle
(hidden from view)
N Transmission Shift
Lever (manual drive
models) - selects
transmission speed
and direction
O Fuel Tank -- --
P Forward Ground
Speed Pedal (hydro
drive models) - controls forward ground
speed
Q Reverse Ground
Speed Pedal (hydro
drive models) - controls reverse ground
speed
-- --
-- --
Engine off
Engine on (run)
Engine start
Transmission
engaged (locked)
Transmission
released
(unlocked)
Forward ground
speed
Neutral (no ground
speed)
Reverse ground
speed
Forward ground
speed
Reverse ground
speed
DANGER
DO NOT operate machine if any safety interlock or safety
device is not in place and functioning properly. Contact
your dealer immediately for assistance. DO NOT attempt
to defeat, modify or remove any safety device.
Engine must not start if:
1. The Clutch/Brake Pedal is not fully depressed OR,
2. The Blade Control is in the ON (engaged) position.
Engine should start if:
1. The Blade Control is in the OFF (disengaged) position
AND,
2. The Clutch/Brake Pedal is fully depressed.
Engine and blade must stop if:
1. The operator rises off of the operator seat while the
Blade Control is in the ON (engaged) position OR,
2. The operator rises off of the operator seat while the
Clutch/Brake Pedal is not fully depressed OR,
3. The operator attempts to drive the unit in reverse with the
mower blade engaged and the reverse mowing option
function (RMO) not activated.
WARNING
Once mower blade is disengaged, it should come to a
complete stop in 5 seconds or less. If the blade continues
to rotate after 5 seconds, DO NOT operate the machine.
Return the machine to an authorized dealer for adjustment.
Operation
Before Starting
Make the following checks and perform the service required
before each start-up:
1. Check the tire pressure; add or release air as needed. Refer to “How To Check Tire Pressure” in the
Maintenance section.
2. Check guards, deflectors and covers to make sure all are
in place and securely tightened.
3. Check engine oil and add oil as needed. Refer to “How
To Check/Add Oil”.
4. Add fuel to the fuel tank as needed. Refer to “How to Add
Fuel”.
5. Adjust the operator seat as needed to the most comfortable position. Refer to “How To Adjust The Operator
Seat”.
6. Check all operator controls to ensure they operate freely
without binding.
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7. Perform the Safety Interlock System Checks. Refer to
Synthetic 5W-30
“Safety Interlock System Checks”.
Oil Recommendations
We recommend the use of Briggs & Stratton Warranty
Certified oils for best performance. Other high-quality detergent oils are acceptable if classified for service SF, SG, SH,
SJ or higher. Do not use special additives.
Outdoor temperatures determine the proper oil viscosity for
the engine. Use the chart to select the best viscosity for the
outdoor temperature range expected.
A
SAE 30 *
†
B
10W-30
C
D
5W-30
Before adding or checking the oil
• Place engine level.
• Clean the oil fill area of any debris.
1. Remove the dipstick (A, Figure 3) and wipe with a clean
cloth.
NOTE: On some models, the dipstick is accessible through
an opening behind the operator seat.
2. Insert and tighten the dipstick.
3. Remove the dipstick and check the oil level. It should be
at the top of the full indicator (B) on the dipstick.
4. If low, add oil slowly into the engine oil fill (C). Do not
overfill. After adding oil, wait one minute and then
recheck the oil level.
5. Replace and tighten the dipstick.
Fuel Recommendations
Fuel must meet these requirements:
• Clean, fresh, unleaded gasoline.
• A minimum of 87 octane/87 AKI (91 RON). High altitude
use, see below.
• Gasoline with up to 10% ethanol (gasohol) is acceptable.
A SAE 30 - Below 40°F (4°C) the use of SAE 30 will
result in hard starting.
B 10W-30 - Above 80°F (27°C) the use of 10W-30 may
cause increased oil consumption. Check oil level more
frequently.
C Synthetic 5W-30
D 5W-30
How To Check/Add Oil
Before adding or checking the oil
• Place engine level.
• Clean the oil fill area of any debris.
1. Remove the dipstick (A, Figure 3) and wipe with a clean
cloth.
NOTE: On some models, the dipstick is accessible through
an opening behind the operator seat.
2. Insert and tighten the dipstick.
3. Remove the dipstick and check the oil level. It should be
at the top of the full indicator (B) on the dipstick.
4. If low, add oil slowly into the engine oil fill (C). Do not
overfill. After adding oil, wait one minute and then
recheck the oil level.
5. Replace and tighten the dipstick.
NOTICE Do not use unapproved gasolines, such as E15
and E85. Do not mix oil in gasoline or modify the engine to
run on alternate fuels. Use of unapproved fuels will damage
the engine components, which will not be covered under warranty.
To protect the fuel system from gum formation, mix a fuel stabilizer into the fuel. See Storage. All fuel is not the same. If
starting or performance problems occur, change fuel providers or change brands. This engine is certified to operate on
gasoline.
The emissions control system for this engine is EM (Engine
Modifications).
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