Toro 22157 User manual

Operator’s Manual
FORM NO. 3319–569GB
ProLine 53cm RecyclerII
Walk-behind Power Mower
Model No. 22157 — 8900001 & Up

EThe Toro Company – 1998
Printed in USA
All Rights Reserved i
Figures
224
1
1. Model and serial number decal
534
1
2
3
4
1. Handle latch
2. Bag support rod 3. Cap locknut 4. Handle
530
3
4
5
1
2
1. Tank bracket
2. Slots
3. Plastic clips
4. Gas tank
5. Self-tapping screw
1
3
2
2045
1. Fuel line clamp
2. Fuel line 3. Elbow fitting
1
2
3
4

Figures
ii
m–210
1
2
1. Rope guide 2. Starter rope
m–262
2
1
1. Discharge door handle 2. Plug rotated clockwise
m–275
1
1. Spring clip
m–3845
12
1. Oil fill tube 2. Dipstick
5
6
7
8

Figures
iii
976
#4!4#4!4#4!4
1992
1
2
3
1. Blade/self-propelled
control bar 2. Throttle
3. Fingertip starter
224
1
1. Ground speed control
m–3662
1 2
1. Primer 2. Spark plug wire
9
10
11
12

Figures
iv
m-3769



m–261
1
3
2
1. Bag frame on retaining
post
2. Pin engaged in catch
3. Handle fully forward.
Discharge door closed.
m–260
1
1. Pin locked in bag notch
225
1
1. Height-of-cut adjuster
13
14
15
16

Figures
v
ÎÎÎÎ
ÎÎÎÎ
m–3664
1
2
3
4
1. Knob
2. Cover 3. Foam pre–cleaner 4. Paper cartridge
110
1
1. .020 in. (.5 mm)
m–3848
1
2
1. Oil fill tube 2. Oil filter
m-3862
1
1. Gasket
17
18
19
20

Figures
vi
m-3638




1. Cable clamp screw
2. Governor control lever 3. Throttle cable 4. Casing
228
1
1. Control knob
1
m–1992
1. One inch
796
2
3
4
1
1. Blade
2. Blade nuts 3. Anti-scalp cup 4. Accelerator
21
22
23
24

Figures
vii
270
1
1
1
2
3
4



1. Sail
2. Flat part of blade 3. Wear 4. Slot formed
153
1
1. Sharpen at this angle only
232
1
1. Grease fitting
224
1
2
1. Grease fitting 2. Belt cover
25
26
27
28

Figures
viii
278
1
2
3
1. Spring
2. Cable clamp screw 3. Cable conduit
1
2
3
m-2858
1. Washout fitting
2. Quick disconnect coupling 3. Hose
m–3844
1
3
2
2
1. Hose clamp
2. Fuel line 3. Filter
796

1. Kicker plates
29
30
31
32

Figures
ix
796
1
2
3
1. BBC shield
2. Tabs and nuts 3. Tab and bolt
296
12 3 45
67 5 7 8 9
1
1. Locknuts
2. Wheel spacer
3. Bearing/hub assembly
4. Bearing spacer
5. Wheel half
6. Plastic cover (rear wheels
only)
7. Lug
8. Bearing (2)
9. Capscrew
20471
1. Side discharge chute
33
34
35

GB–1
Contents
Page
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Training 2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparation 2. . . . . . . . . . . . . . . . . . . . . . . . .
Operation 2. . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance And Storage 3. . . . . . . . . . . . .
Sound Pressure Level 4. . . . . . . . . . . . . . . . .
Sound Power Level 4. . . . . . . . . . . . . . . . . .
Vibration Level 4. . . . . . . . . . . . . . . . . . . . .
Symbol Glossary 5. . . . . . . . . . . . . . . . . . . .
Assembly 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handle 8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Tank 8. . . . . . . . . . . . . . . . . . . . . . . . . .
Discharge Tunnel Plug 8. . . . . . . . . . . . . . . .
Before Starting 8. . . . . . . . . . . . . . . . . . . . . . . . . .
Fill Crankcase With Oil 8. . . . . . . . . . . . . . .
Fill Fuel Tank With Gasoline 9. . . . . . . . . . .
Recycling Tips 10. . . . . . . . . . . . . . . . . . . . . . . . . .
General Tips 10. . . . . . . . . . . . . . . . . . . . . . . .
Operation 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Tips 11. . . . . . . . . . . . . . . . . . . . . .
Controls 11. . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting, Stopping, And Self–propelling 11. .
Using Discharge Tunnel Plug 11. . . . . . . . . .
Using Grass Bag 12. . . . . . . . . . . . . . . . . . . . .
Adjusting Height-of-cut 13. . . . . . . . . . . . . . .
Maintenance 13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing Air Cleaner 13. . . . . . . . . . . . . . . .
Replacing Spark Plug 14. . . . . . . . . . . . . . . . .
Draining Gasoline 14. . . . . . . . . . . . . . . . . . .
Changing Crankcase Oil 14. . . . . . . . . . . . . .
Replacing Oil Filter 14. . . . . . . . . . . . . . . . . .
Adjusting Throttle 15. . . . . . . . . . . . . . . . . . .
Cleaning Cooling System 15. . . . . . . . . . . . . .
Adjusting Wheel Drive 15. . . . . . . . . . . . . . .
Inspecting/Removing/Sharpening Blade 15. .
Lubrication 16. . . . . . . . . . . . . . . . . . . . . . . . .
Lubricating Gear Case 16. . . . . . . . . . . . . . . .
Adjusting Blade Brake Cable 16. . . . . . . . . . .
Cleaning Mower 17. . . . . . . . . . . . . . . . . . . . .
Cleaning Blade Brake Clutch Shield 18. . . . .
Servicing Wheels 18. . . . . . . . . . . . . . . . . . . .
Fuel Filter 19. . . . . . . . . . . . . . . . . . . . . . . . . .
Storage 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories 20. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Thank you for purchasing a Toro product.
All of us at Toro want you to be completely satisfied
with your new product, so feel free to contact your
local Authorized Service Dealer for help with service,
genuine Toro parts, or other information you may
require.
Whenever you contact your Authorized Service
Dealer or the factory, always know the model and
serial numbers of your product. These numbers will
help the Service Dealer or Service Representative
provide exact information about your specific
product. You will find the model and serial number
decal located in a unique place on the product
(Fig. 1).
For your convenience, write the product model and
serial numbers in the space below.
Model No:
Serial No.
Read this manual carefully to learn how to operate
and maintain your product correctly. Reading this
manual will help you and others avoid personal injury
and damage to the product. Although Toro designs,
produces and markets safe, state-of-the-art products,
you are responsible for using the product properly
and safely. You are also responsible for training
persons who you allow to use the product about safe
operation.
The Toro warning system in this manual identifies
potential hazards and has special safety messages that
help you and others avoid personal injury, even death.

GB–2
DANGER, WARNING and CAUTION are signal
words used to identify the level of hazard. However,
regardless of the hazard, be extremely careful.
DANGER signals an extreme hazard that will cause
serious injury or death if the recommended
precautions are not followed.
WARNING signals a hazard that may cause serious
injury or death if the recommended precautions are
not followed.
CAUTION signals a hazard that may cause minor or
moderate injury if the recommended precautions are
not followed.
Two other words are also used to highlight
information. “Important” calls attention to special
mechanical information and “Note” emphasizes
general information worthy of special attention.
The left and right side of the machine is determined
by standing behind the handle in the normal
operator’s position.
Safety
Training
1. Read the instructions carefully. Be familiar with
the controls and the proper use of the equipment.
2. Never allow children or people unfamiliar with
these instructions to use the lawnmower. Local
regulations may restrict the age of the operator.
3. Never mow while people, especially children, or
pets are nearby.
4. Keep in mind that the operator or user is
responsible for accidents or hazards occurring to
other people or their property.
Preparation
1. While mowing, always wear substantial
footwear and long trousers. Do not operate the
equipment when barefoot or wearing open
sandals.
2. Always wear safety glasses or eye shields during
operation to protect eyes from foreign objects
that may be thrown from the machine. Keep
face, hands, and feet away from the mower
housing and cutter blade when the engine is
running. Stay behind the handle until the engine
stops.
3. Thoroughly inspect the area where the
equipment is to be used and remove all objects
which may be thrown by the machine.
4. WARNING – Petrol is highly flammable.
•Store fuel in containers specifically designed for
this purpose.
•Refuel outdoors only and do not smoke while
refuelling.
•Add fuel before starting the engine. Never
remove the cap of the fuel tank or add petrol
while the engine is running or when the engine is
hot.
•If petrol is spilled, do not attempt to start the
engine but move the machine away from the are
of spillage and avoid creating any source of
ignition until petrol vapors have dissipated.
•Replace all fuel tanks and container caps
securely.
5. Replace faulty silencers.
6. Before using, always visually inspect to see that
the blades, blade bolts and cutter assembly are
not worn or damaged. Replace worn or damaged
blades and bolts in sets to preserve balance.
7. On multi-bladed machines, take care as rotating
one blade can cause other blades to rotate.
Operation
1. Do not operate the engine in a confined space
where dangerous carbon monoxide fumes can
collect.

GB–3
2. Mow only in daylight or in good artificial light.
3. Avoid operating the equipment in wet grass,
where feasible.
4. Always be sure of your footing on slopes.
5. Walk, never run.
6. For wheeled rotary machines, mow across the
face of slopes, never up and down.
7. Exercise extreme caution when changing
direction on slopes.
8. Do not mow excessively steep slopes.
9. Use extreme caution when reversing or pulling
the lawnmower towards you.
10. Stop the blade(s) if the lawnmower has to be
tilted for transportation when crossing surfaces
other than grass, and when transporting the
lawnmower to and from the area to be mowed.
11. Never operate the lawnmower with defective
guards or shields, or without safety devices for
example deflectors and/or grass catchers in
place.
12. Do not change the engine governor settings or
overspeed the engine.
13. Disengage all blade and drive clutches before
starting the engine.
14. Start the engine or switch on the motor carefully
according to instructions and with feet well away
from the blade(s).
15. Do not tilt the lawnmower when starting the
engine or switching on the motor, except if the
lawnmower has to be tilted for starting. In this
case, do not tilt it more than absolutely necessary
and lift only the part which is away from the
operator.
16. Do not start the engine when standing in front of
the discharge chute.
17. Do not put hands or feet near or under rotating
parts. Keep clear of the discharge opening at all
times.
18. Never pick up or carry a lawnmower while the
engine is running.
19. Stop the engine and disconnect the spark plug
wire.
•before clearing blockages or unclogging chute;
•before checking, cleaning or working on the
lawnmower;
•after striking a foreign object. Inspect the
lawnmower for damage and make repairs before
restarting and operating the lawnmower;
•if lawnmower starts to vibrate abnormally (check
immediately).
20. Stop the engine
•whenever you leave the lawnmower;
•before refuelling.
21. Reduce the throttle setting during engine shut
down and, if the engine is provided with a
shut-off valve, turn the fuel off at the conclusion
of mowing.
22. Go slow when using a trailing seat.
Maintenance And Storage
1. Keep all nuts, bolts and screws tight to be sure
the equipment is in safe working condition.
2. Never store the equipment with petrol in the tank
inside a building where fumes may reach an
open flame or spark.
3. Allow the engine to cool before storing in any
enclosure.
4. To reduce the fire hazard, keep the engine,
silencer, battery compartment and petrol storage
area free of grass, leaves, or excessive grease.
5. Check the grass catcher frequently for wear or
deterioration.

GB–4
6. Replace worn or damaged parts for safety.
7. If the fuel tank has to be drained, this should be
done outdoors.
Sound Pressure Level
This unit has an equivalent continuous A-weighted
sound pressure at the operator ear of: 85 dB(A), based
on measurements of identical machines per ANSI
B71.5-1984 procedures.
Sound Power Level
This unit has a sound power level of: 100 dB(A)/1
pW, based on measurements of identical machines per
Directive 84/538/EEC and amendments.
Vibration Level
This unit has a maximum hand-arm vibration level of
4.20 m/s@, based on measurement of identical
machines per ISO 5349 procedures.

GB–5
Symbol Glossary
Safety alert triangle —
symbol within triangle
indicates a hazard.
Do not open or
remove safety shields
while engine is
running.
Safety alert symbol
Rotating blade can cut
off toes or fingers.
Stay clear of mower
blade as long as
engine is running.
Read operator’s
manual.
To avoid blade failure
when mulching, use
blade stiffener when
mower is equipped
with mulching plug.
Consult technical
manual for proper
service procedures. Transmission
Stay a safe distance
from the machine. Oil
Stay a safe distance
from the mower. On/Run
Throw or flying
objects — Whole body
exposure Engage
Thrown or flying
objects — Rotary
side-mounted mower.
Keep deflector shield
in place.
Disengage

GB–6
Stop engine before
leaving operator
position.
Battery charging
condition
Hourmeter/elapsed
operating hours Fuel
Fast Neutral
Slow First gear
Decreasing/Increasing Second gear
Grease lubrication
point Third gear
Engine start Cutting element —
basic symbol
Engine stop Cutting element —
height adjustment
Choke Pull rope.

GB–7
Primer (start aid) Wheel
Push primer three
times. Wheel traction
Properly dispose of
batteries. Lower control bar.
Insert key in ignition
switch. Raise control bar.
Turn key in ignition
switch. Raise/lower control bar.
Move control. Raise/lower control
bar.
Move control forward. Raise control bar.
Move control
rearward. Raise control bar.
Lower control bar.

GB–8
Assembly
Handle
1. Mount handle to outside of mower housing,
using bottom hole, with (2) 5/16–18 x 1–1/4” lg.
capscrews, washers, and thin nylon insert
locknuts (Fig. 2).
2. Secure handle latches to handle with (2) 5/16–18
x 1–1/2” lg. capscrews, washers and nylon insert
locknuts (Fig. 2).
Note: Handle height is adjustable for
operator comfort. Stand behind mower
handle to gauge height. To adjust
handle height, reposition capscrews
and locknuts securing handle latches to
handle into other mounting holes in
latches.
3. Slide bag support rod thru top mounting holes in
handle and secure each end with a cap locknut
(Fig. 2).
4. Use a cable tie to secure the control cables to left
handle below the bag support rod.
5. Pull starter rope through rope guide on handle
(Fig. 5).
Gas Tank
1. Start self–tapping screws into bottom of gas tank
and then remove screws.
2. Hook plastic clips on front of gas tank into slots
on rear of engine (Fig. 3).
3. Secure gas tank to tank base with (2)
self–tapping screws (Fig. 3). Do not overtighten
screws.
4. Remove red cap from end of fuel line and from
end of elbow fitting on gas tank. Slide end of
fuel line onto elbow fitting (Fig. 4). Secure fuel
line in place with fuel line clamp.
Discharge Tunnel Plug
1. Open the discharge door by pulling forward on
the handle and moving it rearwards (Fig. 6).
Hold the discharge door handle to prevent the
spring–loaded door from closing while inserting
the plug.
2. Since the plug is slightly wider than the
discharge tunnel opening, rotate the plug
clockwise slightly while inserting it (Fig. 6).
Make sure the arrow on the plug decal is
pointing upwards.
3. Push the plug all the way in until the spring clip
on the bottom of the plug clicks into place,
locking the plug securely into the discharge
tunnel (Fig. 6). Release discharge door handle to
lock top of plug.
Before Starting
Fill Crankcase With Oil
Fill crankcase with SAE 30 or 10W30 oil until oil
level reaches FULL mark on dipstick as shown in
(Fig. 8). The maximum crankcase capacity is 26
ounces (0.77 liters) of oil with the oil filter installed
and 22 ounces (0.65 liters) without the oil filter
installed. Use any high quality detergent oil having
the American Petroleum Institute (API) “service
classification” — SF, SG, SH or SJ.
Before each use, ensure oil level is between ADD and
FULL marks on dipstick (Fig. 8). Add oil if level is
low.
1. Position mower on level surface and clean
around oil dipstick.
2. Remove dipstick by rotating cap
counterclockwise 1/4 turn.
3. Wipe dipstick and insert it into filler neck.
Rotate cap clockwise 1/4 turn. Then remove
dipstick and check level of oil (Fig. 8). If level is
low, add only enough oil to raise level to FULL
mark on dipstick. DO NOT FILL ABOVE
FULL MARK BECAUSE ENGINE COULD
BE DAMAGED WHEN STARTED. POUR
OIL SLOWLY.

GB–9
4. Insert dipstick into filler neck and rotate cap
clockwise 1/4 turn to lock.
Note: Check oil level each time mower is
used or after every 5 operating hours.
Initially, change oil after the first 5
hours of operation; thereafter, change
oil after every 50 hours of operation.
More frequent oil changes are required
in dusty or dirty conditions.
Fill Fuel Tank With Gasoline
POTENTIAL HAZARD
•In certain conditions gasoline is extremely
flammable and highly explosive.
WHAT CAN HAPPEN
•A fire or explosion from gasoline can burn
you, others, and cause property damage.
HOW TO AVOID THE HAZARD
•Use a funnel and fill the fuel tank outdoors,
in an open area, when the engine is cold.
Wipe up any gasoline that spills.
•Do not fill the fuel tank completely full.
Add gasoline to the fuel tank until the level
is 1/4” to 1/2” (6 mm to 13 mm) below the
bottom of the filler neck. This empty space
in the tank allows gasoline to expand.
•Never smoke when handling gasoline, and
stay away from an open flame or where
gasoline fumes may be ignited by a spark.
•Store gasoline in an approved container
and keep it out of the reach of children.
•Never buy more than a 30-day supply of
gasoline.
This engine is certified to operate on unleaded
gasoline. Toro strongly recommends the use of fresh,
clean, UNLEADED regular grade gasoline with an
octane rating of 85 or higher in Toro gasoline
powered products. Unleaded gasoline burns cleaner,
extends engine life, and promotes good starting by
reducing the build-up of combustion chamber
deposits. In countries other than U.S.A., leaded
gasoline may be used if it is commercially available
and unleaded is unavailable.
IMPORTANT: Do not mix oil with the gasoline.
Do not use gasoline that has been stored in an
approved container from one season to the next.
Toro also recommends that Toro
Stabilizer/Conditioner be used regularly in all Toro
gasoline powered products during operation and
storage seasons. Toro Stabilizer/Conditioner cleans
the engine during operation and prevents gum–like
varnish deposits from forming in the engine during
periods of storage.
IMPORTANT: Some fuels, called oxygenated or
reformulated gasolines, are gasolines blended with
alcohols or ethers. Excessive amounts of these
blends can damage the fuel system or cause
performance problems. Never use methanol,
gasoline containing methanol, gasohol containing
more than 10% ethanol or white gas because
engine fuel system damage could result. If any
undesirable operating symptoms occur, use
gasoline with a lower percentage of alcohol or
ether.
Do not use fuel additives other than those
manufactured for fuel stabilization during storage
such as Toro’s Stabilizer/Conditioner or a similar
product. Toro’s Stabilizer/Conditioner is a
petroleum distillate based conditioner/stabilizer.
Toro does not recommend stabilizers with an
alcohol base such as ethanol, methanol or
isopropyl. Additives should not be used to try to
enhance the power or performance of machine.
1. Clean around fuel tank cap and remove cap from
tank. Using unleaded gasoline, add fuel to 1/4”
to 1/2” (6 to 13 mm) from top of tank, not into
the filler neck. Do not fill the tank full.
2. Reinstall fuel tank cap and wipe up any spilled
gasoline.
3. Connect spark plug wire (if disconnected)
(Fig. 12).

GB–10
Recycling Tips
General Tips
Follow these instructions whether cutting grass or
leaves for the best cutting results and lawn
appearance:
•Maintain a sharp blade throughout the cutting
season. Periodically file down nicks on blade.
•Only mow dry grass or leaves. Wet grass and
leaves tend to clump on yard and may cause
mower to plug or engine to stall. They also may
be slippery to walk on and could cause you to
slip and fall.
POTENTIAL HAZARD
•Wet grass or leaves can cause you to slip
and contact blade.
WHAT CAN HAPPEN
•Blade contact can seriously injure you.
HOW TO AVOID THE HAZARD
•Mow only in dry conditions.
•Set engine speed to fastest position. Maximum
horsepower provides best cutting results.
•Clean clippings or leaves from underside of
mower deck after each mowing.
•Keep engine in good running condition. Cutting
and recutting requires more horsepower.
•Clean air filter more frequently. Cutting and
recutting stirs up more clippings and dust which
clogs the air filter and reduces engine
performance.
Cutting Grass
•Grass grows at different rates at different times
of the year. In the heat of the summer, it is
generally best to cut grass at the 1-#/4”, 2-!/4” or
2-#/4” height-of-cut settings (Fig. 9). Only about
!/3of the grass blade should be cut off. Cutting
below the 1-#/4” setting is not recommended
unless grass is sparse or it is late fall when grass
growth begins to slow down.
•When cutting grass over six inches tall, you may
want to first mow using the highest height-of-cut
setting and a slower walking speed; then mow
again at a lower setting for best lawn appearance.
If grass is too long and leaves clumps on top of
lawn, mower may plug and cause engine to stall.
•Alternate mowing direction. This helps disperse
clippings over lawn for even fertilization.
If the finished cut lawn appearance is unsatisfactory,
try one or more of the following:
•Sharpen the blade.
•Walk at a slower pace while mowing.
•Raise the height-of-cut setting on your mower.
•Cut grass more frequently.
•Overlap cutting swaths instead of cutting a full
swath with each pass.
•Mow across the marginal areas a second time.
•Set height-of-cut on front wheels one notch
lower than rear wheels. (example: set front
wheels at 1-#/4” setting and rear wheels at 2-!/4”
setting)
Cutting Leaves
•When cutting is complete, always be sure that
50% of the lawn shows through the cut leaf
cover. This may require one or more passes over
the leaves.
•For light leaf coverage, position all wheels at the
same height-of-cut setting.
•If there are more than five inches of leaves on
lawn, set the front wheels one or two notches
higher than the rear wheels. This makes it easier
to feed leaves under mower deck.
•Walk at a slower mowing speed if leaves are not
being cut up finely enough to be hidden down in
the grass.