Toro 616-Z Tractor Riding Product Operator's Manual

 ENGLISH FORM NO. 3320-673
MODEL NO. 116YOEE3 - 1000001 & UP
MODEL NO. 116YOEE4 - 2000001 8 UP
OPERATOR'S
MANUAL
N
TORO WHEEL HORSE”
616-Z TRACTOR
©The TORO Company - 1991
и
ENGLISH
TABLE OF CONTENTS
Page
SAFE OPERATION PRACTICES — RIDING
VEHICLES ......... iii, EN-1
General ee EN-1
Fuel/Fire Precautions ................... EN-1
Equipment Use And Operation ........... EN-2
Stability/Tip Over/Traction ............... EN-2
AttachmentUse ....................... EN-3
Maintenance ................. cc... EN-3
616--Z SPECIFICATIONS ................... EN-4
MODEL AND SERIAL NUMBER LOCATIONS ... EN-5
OWNER REGISTRATION AND WARRANTY ..... EN-5
INSTRUMENTS AND CONTROLS ............ EN-6
BEFORE OPERATING ...................... EN-8
Check The Fuel ....................... EN-8
Спеск Тпе ОИ ......................... EN-9
Check The Safety interlock System ....... EN-9
Adjusting The Seat .................. EN-9
OPERATING ......... iii, EN-10
Starting The Engine ................... EN-10
Using The Throttle Control .............. EN-10
Using The Choke Control .............. EN-10
Going Forward Or Backward ............ EN-10
Changing Speed Or Direction ........... EN-10
Stopping ......... a aa e 6 EN-11
Shutting Off The Engine ................ EN-11
Hand Pushing The Machine ............ EN-11
Page
USING ATTACHMENTS ................... EN-12
UsingAMower ....................... EN-12
Operating With Drawbar-Type
Attachments ......................... EN-13
Dump Cart Load Limits ................ EN-13
Operating With A Rear Vacuum ....... ... EN-13
MAINTENANCE ............ aa 406 EN-14
Maintenance Check List ............... EN-14
Engine .......... e see ea aan 06 EN-15
Cooling ........... e... ..0reerrie EN-15
Oil RK EN-15
Air Filter ......... 2... rada. EN-16
Crankcase Breather ................... EN-17
Spark Plug ........012101 1111 11e EN-17
Carburetor Adjustment ................. EN-18
Fuel System ......................... EN-18
The Exhaust System ................... EN-18
The Electrical System ................. EN-19
Hydrostatic Transmission ............... EN-20
Lubrication .......................... EN-20
PTO Electric Clutch/Brake .............. EN-21
The Parking Brake Adjustment .......... EN-21
Cleaning And Storage ................. EN-21
TROUBLESHOOTING CHECK LIST .......... EN-22
EN-i
FAN CAUTION
follow these instructions carefully.
the tractor seat.
This symbol marks important instructions concerning your personal safety. To avoid injury, read and
When the manual refers to the left or right side of the vehicle, it means your left or right when sitting on
SAFE OPERATION PRACTICES —RIDING VEHICLES
GENERAL
1. This machine can amputate hands and feet and
throw objects that can cause injury and damage.
KNOW the controls and how to stop the machine
quickly. READ THIS OPERATOR'S MANUAL and obey
all safety messages appearing on the machine and in
the operator's manual. LEARN from your operator's
manual and from CAREFUL EXPERIENCE how to
operate your equipment correctly. Know your
machine's limitations.
2. Keep hands, feet, hair and loose clothing away
from the attachment discharge area, the underside of
the mower deck or any moving parts while the engine
is running.
3. For your personal safety: Do not operate this
machine while taking drugs or medication or while
drinking alcoholic beverages.
4. Only responsible persons with mature judgment
and proper physical capabilities should be allowed to
operate this machine, and only after instruction in the
correct use of this equipment.
5. Do not allow children to operate the machine.
6. Do not carry passengers.
7. The purpose of this machine is work. Do not use it
for sport or recreation.
8. Do not mow when people or pets are in the area.
9. Clear the work area of objects (wire, rocks, etc.)
that might be picked up and thrown.
10. Take all possible precautions when leaving the
machine unattended. Disengage the power-take-off,
lower attachments, shift into NEUTRAL, set the
parking brake, stop the engine and remove the key.
11. Watch out for traffic when crossing or near
roadways.
12. Stop and inspect the machine and attachments for
damage after striking a foreign object. Damage
should be repaired before restarting and operating the
equipment.
13. Do not change the engine’s governor settings or
overspeed the engine.
14. Wear appropriate protective clothing when
operating equipment. Long pants and substantial
footwear, not bare feet or open sandals, are essential.
15. Do not operate the machine unless properly
seated with your feet on the footrests or pedals.
16. Keep your eyes and mind on your machine, its
attachment and the working area. Do not let other
interests distract you.
17. Safety switch(es) stop or prevent engine starting
to help prevent accidents. TAKE PRECAUTIONS —
DON’T RELY ENTIRELY ON SAFETY SWITCH(ES).
18. Take care not to touch the equipment or
attachment parts that may be hot from operation. The
muffler and nearby areas may exceed 150° F. Let the
engine and other parts cool before attempting to
maintain, adjust or service them.
19. Stereo headphones, ear protection or other sound
aitering/dampening devices may limit your ability to
hear warning sounds (horns, shouts, etc.).
FUEL/FIRE PRECAUTIONS
20. Handle gasoline with care —it is highly flammable.
21. Use an approved gas container. Place it out of
children's reach.
22. Use gasoline only as a fuel —never as a cleaner.
23. Never remove the fuel cap or add gasoline to a
running or hot engine, or an engine that has not
cooled for several minutes after running.
24. Never fill the fuel tank indoors. Wipe up spilled
gasoline.
25. Open doors if you run the engine in a garage —
exhaust fumes are dangerous. Do not run the engine
indoors.
26. Do not fill the machine with gasoline while
smoking or when near an open flame or sparks.
27. Never store equipment with gasoline in the fuel
tank inside a building where fumes may reach an
open flame or spark.
EN-1
SAFE OPERATION PRACTICES — RIDING VEHICLES
28. Allow the engine to cool before storing it in any
enclosure.
29. To reduce fire hazard, keep the engine and
attachments free of grass, leaves or excessive grease.
30. Battery acid is a poison and can cause burns.
Avoid contact with skin, eyes and clothes and protect
your face, eyes and clothing when working around the
battery.
31. Battery gases can explode. Keep cigarettes,
sparks and flames away from battery.
EQUIPMENT USE AND OPERATION
32. We recommend that you first operate the
equipment at a slow speed with any attachment
disengaged until you are thoroughly familiar with the
controls and have developed operating skills.
33. Disengage all attachment clutches, set the
parking brake and shift into NEUTRAL before starting
the engine.
34. Disengage power to the attachment(s), set the
parking brake and stop the engine before leaving the
operator position. |
35. Disengage power to the attachment(s) and stop
the engine before making any repairs or adjustments.
36. Disengage power to the attachment(s) when
transporting the machine or when it is not in use.
37. Disengage the attachment clutch before removing
the mower from a hole or other obstruction.
38. Disengage power to the attachment(s) before
backing. Do not mow in reverse unless it is
absolutely necessary and then only after careful
observation of the entire area behind the machine.
39. LOOK behind the machine to make sure the area
is clear before placing the transmission in reverse and
continue looking behind white backing.
40. Always back the machine up loading ramps and
tilt bed trailers.
41. The parking brake is designed to hold the vehicle
in place at rest, with the engine off. The parking brake
will not restrain the vehicle with the engine running
and the transmission engaged.
STABILITY/TIP OVER/TRACTION
42. Know the terrain on which you operate your
equipment. There are areas on which you cannot
safely operate your equipment.
EN-2
43. Avoid operating the machine on hillsides, slopes
or rough terrain. DO*NOT operate the machine on
hillsides or slopes exceeding 15° (27% grade). If
safety is in doubt— STAY OFF THE SLOPE.
44. Reduce speed and exercise extreme caution on
slopes above 10° (18% grade) to prevent tipping or
loss of control. Never mow uphill on these
slopes —mow downhill only. If you must climb a steep
hill, back the machine up the hill, and drive the
machine forward down the hill, keeping the vehicle in
gear. If necessary to turn on hill, always turn downhill.
45. Mow up and down the face of slopes greater than
5° (9% grade), never across the face. Be especially
cautious when changing directions on all slopes.
46. Operate your machine smoothly and at a ground
speed slow enough to ensure complete control.
Avoid erratic operation and excessive speed.
47. Sharp turns on any terrain may cause loss of
control. Reduce speed and use caution on sharp
turns.
48. Do not stop or start suddenly when going uphill or
downhill. Avoid uphill starts. If machine stops when
going up a slope, turn the attachment off and back
slowly down the slope, keeping the machine in gear.
Do not stop or change gears (speed) on slopes.
49. Know the terrain. Find hidden obstacles by
walking through and inspecting the area before
operating your equipment in that area. Plainly mark
obstacles, such as rocks, roots or holes and stay well
clear of these obstacles when operating.
50. While operating, stay alert for holes, rocks or
roots, which may damage equipment or cause it to
upset. Keep at least three (3) feet away from
drop-offs, ditches, creeks, culverts, washouts and
public highways.
51. Exercise care when mowing around a fixed object
to prevent the equipment or attachment from striking it.
When mowing, never deliberately run over any foreign
object.
52. Areas wet with dew, rain or snow will be more
slippery than when dry. Areas covered with loose
gravel are more slippery than firm, dry ground.
Greater stopping distances are required in these
slippery areas.
53. Learn to expect changes in operating conditions.
Adding or removing attachments or weight to your
equipment will make your machine operate differently.
Rain, snow, loose gravel, wet grass, etc., change the
terrain’s tractive conditions. Changing tractive
conditions require you to change your operating
technique — including deciding not to operate on that
terrain sometimes.
SAFE OPERATION PRACTICES —RIDING VEHICLES
54. Use care when pulling loads or using heavy
equipment.
A. Use only approved drawbar hitch points.
B. Limit loads to those you can safely control.
C. Do not turn sharply. Use care when backing.
D
Use counterweight(s) or wheel weights when
suggested in the operator's manual.
ATTACHMENT USE
55. When using attachments, never direct the
discharge of material toward bystanders, nor allow
anyone near the vehicle while it operates.
56. When using the machine with a mower:
A. Mow only in daylight or in good artificial light.
B. Never adjust cutting-height while the engine
is running if you must dismount to do so.
C. Shut off the engine when unclogging the
chute.
D. Check the blade mounting bolts for proper
tightness at frequent intervals,
57. Keep hands and feet away from rotating blade(s)
underneath the mower deck. Never place your foot on
the ground when the mower is engaged or in motion.
58. DO NOT operate the mower attachment without
the chute deflector or complete bagger in place.
59. Exercise care while maneuvering with the grass
catcher. Front-to-rear stability may change.
60. If you use the machine with a snowthrower and
the auger becomes plugged or jammed:
A. Declutch the snowthrower and stop the
vehicle engine immediately.
Disconnect the spark plug wire(s).
C. Clear snow from the discharge chute if it is
plugged.
D. If the auger is jammed, remove the foreign
object and repair any damage to the
snowthrower before you continue.
E. Reconnect the spark plug wire(s) and resume
operation.
61. Never permit anyone to stand near the
snowthrower auger or discharge opening. Objects
may be present in snow, which when thrown, could
cause injury.
62. When using snow/dozer blades:
A. Do not hit solid objects. This can damage
blades and injure the operator.
B. Always travel at a safe, slow speed.
63. Keep all persons at safe distance away when
operating tillers. Always disengage the PTO, lower
the attachment and remove the ignition key before
making any adjustments.
64. If the tiller starts to push the vehicle, disengage
the PTO clutch immediately.
65. Use chains, counterweight(s) or wheel weights
when necessary.
MAINTENANCE
66. Keep all nuts, bolts, fasteners and screws tight to
ensure the equipment is in safe working condition and
check them frequently. Repair or replace worn,
damaged, distorted or broken parts as needed.
67. Keep the vehicle and its attachments in good
operating condition and keep safety devices in place
and working.
68. Under normal usage, the grass catcher bag's
material will wear and deteriorate. Check often to see
if the bag needs to be replaced.
69. Use only genuine TORO Wheel Horse
replacement parts to maintain original standards.
70. Shields, deflectors, switches, blade controls and
other safety devices must be in their proper position
and functional.
71. Do not operate without a muffler or damper on the
exhaust system. Damaged mufflers or spark arresters
can create a fire hazard. Periodically inspect and
replace whenever necessary.
72. If the equipment begins to vibrate abnormally,
disengage power to the attachments and stop the
engine immediately. Repair any damage before
starting or continuing operation.
73. Periodically inspect all shafts, levers, friction
devices and other moving parts that are subject to
wear. Adjust or replace these parts if they are
damaged, distorted or broken, or when wear affects
the normal operation of the vehicle or attachment. DO
NOT use equipment that is not operating properly.
EN-3
616-Z SPECIFICATIONS
ENGINE:
RATED DISPLACEMENT BORE STROKE
ENGINE MODEL* Н.Р** cu. in./cc In./mm in./mm IGNITION
P-216V-1/10959A 16 43.3/710 3.25/82.6 2.62/66.6 Electronic
* Basic engine model number shown; type and serial numbers from engine |.D. plate are required to
completely identify engine.
** Engine manufacturer’s rating at 2500 RPM.
TRANSMISSION: APPROXIMATE GROUND SPEEDS (AT FULL THROTTLE)
Type: Hydrostatic
Forward: Variable 0-7.2 mph (11.6 kph)
Reverse: Variable 0-7.2 mph (11.6 kph)
ELECTRICAL SYSTEM:
Type: 12 Volt D.C. Negative Ground
Alternator: 12 Volt, 20 amp. Regulated
Battery: 12 Volt 280 CCA
TIRES:
SIZE — FRONT SIZE — REAR PRESSURE/FRONT PRESSURE/REAR
11 x 4.00-5 18 x 9.50-8 8 psi (57 kg/cm?) 8 psi (57 kg/cm?)
PHYSICAL DATA:
WHEEL INSIDE TURNING NET WEIGHT
HEIGHT LENGTH WIDTH BASE RADIUS (APPROXIMATE)
41.2 in. 71.7 in. 40 in. 42 in. O in. 590 165.
(104.9 ст) (182.1 cm) — (191.6 ст) (106.7 cm) (О ст) | (268 kg)
TUNE-UP/GENERAL MAINTENANCE SPECIFICATIONS:
SPARK
POINT TIMING IGNITION SPARK PLUG DIRECTION OF IDLE GOVERNED
GAP MARK TIMING PLUG GAP ROTATION RPM MAX. RPM
in./mm LOCATION (BTDC) TYPE* in./mm (Fac. DR.P) (No Load) (No Load)
N/A N/A Fixed RS14YC* .025/.64 Counterclockwise 1400 2800
* Or equivalent (Champion number shown)
LUBRICANT/FUEL CAPACITIES:
CRANKCASE FUEL TANK CHASSIS
1.7 ats. (1.6 |) without Filter 3 Gallons (11.21) Grease Fittings: 6
2.0 gts. (1.9 1) with Filter
EN-4
MODEL AND SERIAL NUMBER LOCATIONS
Model and serial numbers identify your new tractor
and major attachments. Always refer to these
numbers when consulting your dealer or factory about
service, parts, or other information. If the plates
showing the model! and serial numbers are removed
during repair operations, they should always be
replaced.
The tractor vehicle identification number plate is just
below the seat on the rear fender. The engine
identification numbers are on the engine shrouding
and show your tractor's model, specification or type
number and the serial number of your tractor's engine.
Major attachments also have a model and serial
number plate attached to them.
For your convenience and ready reference, enter the
tractor and engine numbers below.
Model and Serial Number Plate Location
1. Model and serial number plate
Tractor Model and Serial Number
WHEEL HORSE PRODUCTS
SOUTH BEND. INDIANA 46680
NU
MADE IN USA
Engine Identification Number
Model
Type or Spec. No.
Serial No.
OWNER REGISTRATION AND WARRANTY
Service and warranty assurance are as important to
TORO Wheel Horse as it is to you. To simplify
warranty service at an Authorized TORO Wheel Horse
Dealer, TORO Wheel Horse requires factory
registration. We supply a registration card with each
new tractor and attachment. Either you or your
dealer must supply the required information and
mail the card to TORO Wheel Horse.
The TORO Wheel Horse Limited Warranty Statement is
on a “hang tag” attached to each product. This
statement describes the items covered by the TORO
Wheel Horse Limited Warranty, your rights and
obligations, and the procedure for obtaining warranty
service. Please familiarize yourself with the warranty
statement. We want you to be satisfied with your
TORO Wheel Horse tractor; please don’t hesitate
to contact us for assistance.
EN-5
INSTRUMENTS AND CONTROLS
1. Throttle control
2. Ignition switch
3. Choke
1. THROTTLE CONTROL
The throttle is on top of the right panel below the seat.
Move the throttle forward all the way to the OPERATE
position to operate the machine. Move the throttle all
the way to rear position before shutting the engine off.
2. IGNITION SWITCH
The ignition switch is on the right panel below the
seat. It has three positions: (1) OFF, (2) RUN,
(3) START. To start the engine, turn the key ail the way
to START. Release the key when the engine starts and
it will automatically return to the RUN position. Turn
the switch to the OFF position to stop the engine.
3. THE CHOKE CONTROL
The choke control is on the right panel next to the
ignition switch. Pull the choke knob out when starting
the engine. Slowly push the knob in after the engine
starts. If the engine is warm and has been running,
choking may not be necessary to restart it.
4. RIGHT AND LEFT MOTION CONTROL LEVERS
The lever control levers move right, left, forward, and
rearward. To enter the seat, move the levers ali the
way left and right. Enter the seat and move the levers
in toward the center of the machine.
EN-6
4. Motion control levers
. PTO Switch
Ur
The left lever controis left rear wheel and the right
lever controls the right rear wheel. To go forward,
push both levers forward evenly; the further you push
the levers forward, the faster the machine will travel.
To move in reverse, pull both levers to the rear evenly;
the further you pull the levers, the faster the machine
will travel. To turn, slow the machine and pull one
lever back far enough to cause it to rotate backward at
the same speed that the opposite wheel is turning
forward.
5. PTO (POWER TAKE-OFF) ELECTRIC CLUTCH/
BRAKE SWITCH
The PTO switch is on the right panel below the seat.
The switch engages and disengages the mower.
To engage the PTO, raise the switch cover and move
the switch to the ON position. To disengage the PTO,
lower position. The switch must be in the OFF
position to start the engine.
INSTRUMENTS AND CONTROLS
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6. Parking Brake
6. THE PARKING BRAKE LEVER
The parking brake lever is on the left side, below the
seat. To engage the parking brake, place the motion
control levers in the neutral position and move the
brake lever back. To disengage the parking brake,
move the lever forward.
The parking brake must be engaged to start the
engine.
8. Fuel Valve
8. THE FUEL TANK VALVE
The fuel tank valve is at the bottom of the tank. The
valve is usually left open unless service on fuel
system becomes necessary.
7. Hour Meter
7. THE HOUR METER
An hour meter is on the back of the seat support in
front of the engine. The hour meter is a gauge that
shows operating hours of tractor.
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BEFORE OPERATING
MÍ CHECK THE FUEL
THE TORO COMPANY STRONGLY RECOMMENDS
USING ONLY FRESH, CLEAN UNLEADED REGULAR
GRADE GASOLINE. UNLEADED GASOLINE BURNS
CLEANER, EXTENDS ENGINE LIFE AND PROMOTES
GOOD STARTING BY REDUCING BUILD-UPS OF
COMBUSTION CHAMBER DEPOSITS. IF UNLEADED
GASOLINE IS NOT AVAILABLE, YOU CAN USE
LEADED GAS. NEVER USE METHANOL, GASOLINE
CONTAINING METHANOL OR MORE THAN 10%
ETHANOL, GASOLINE ADDITIVES, PREMIUM
GASOLINE OR WHITE GAS BECAUSE THE ENGINE
FUEL SYSTEM MAY BE DAMAGED. ALSO, DO NOT
USE GASOLINE DE-ICERS. THEY CAN CAUSE
INTERNAL DAMAGE TO CARBURETOR AND FUEL
PUMP PARTS.
If you use regular leaded gasoline continually, you
should remove carbon and lead deposits from the
cylinder heads because of engine power loss. You
can safely use unleaded gasoline after lead deposits
have been removed.
EN-6
A DANGER
Gasoline is highly flammable, use caution
when storing or handling it.
Do not fill the fuel tank while the engine is
running, hot, or when the machine is in an
enclosed area. Vapors may build up and
be ignited by a spark or flame source
many meters (feet) away.
DO NOT SMOKE while filling the tank.
Always fill the fuel tank outside and wipe
up any spilled fuel before starting the
engine.
To prevent spilling fuel, use a funnel or
spout and fill the tank to about 25 mm
(1 in.) below the filler hole. DO NOT
OVERFILL.
Use gasoline for the engine only, not for
any other purpose.
Store gasoline in a clean, safety approved
container and keep the container capped.
Keep gasoline in a cool, well-ventilated
place. Never store gasoline in an
enclosed area such as a hot storage shed.
Never buy more than 30 days’ supply to
assure volatility.
Because many children like the smell of
gasoline, keep it out of their reach
because the fumes are explosive and
dangerous to inhale.
BEFORE OPERATING
+ CHECK THE OIL
To protect your tractor’s engine, check the oil level
before each use. Complete information on
recommended oils and how to check the oil level is in
the Maintenance section of this manual.
CHECK THE SAFETY INTERLOCK
SYSTEM
Safety Interlock Switches
1. PTO switch
2. Seat switch
3. Parking brake switch
The safety interlock system has two switches for safe
starting, and a seat switch that shuts off the engine if
you rise off the seat with the PTO engaged.
The PTO switch must be “OFF” and the parking brake
engaged before the engine will start.
If the machine won't start, make sure the parking
brake is engaged and the PTO switch is in the OFF
position.
Test the safety interlock system periodically. To test it,
observe the following functions. (For your protection,
if you do not get the results described, have repairs
done immediately by an authorized TORO Wheel
Horse Dealer.
1. The engine should NOT start if:
A. The parking brake is disengaged.
B. The PTO switch is ON.
Test each of the above, one at a time.
2. With the engine running and the PTO switch in the
ON position, test the seat switch by rising off the seat.
The engine should shut off.
ADJUSTING THE SEAT
The seat can be adjusted for optimum comfort.
1. Loosen the two knobs.
2. Slide the seat to desired position.
3. Tighten the knobs.
3
en
a
CE
A CAUTION
Before starting the engine, become familiar
with all controls. Read this Operator’s Manual
thoroughly. Always check oil level before
starting the engine.
A DANGER
Care should be taken to avoid inhaling exhaust
gases as they contain carbon monoxide gas,
which is colorless and odorless. Carbon
monoxide is a dangerous gas that can cause
unconsciousness and is potentially lethal. Do
not run the engine in confined areas such as a
closed garage.
EN-9
OPERATING
STARTING THE ENGINE
Because of the safety interlock system, your tractor
will not start unless you engage the parking brake and
switch the PTO switch OFF.
To start the engine, engage the parking brake. Move
the throttle control lever to the LOW idle position. Pull
the choke control all the way out to the COLD
position. Turn the ignition key to START to engage
starter. When the engine starts, release the key. The
switch is spring loaded and will return to the RUN
position automatically.
IMPORTANT: If the engine fails to start after 10
seconds of continuous cranking, turn the key to
OFF and let the starter motor cool. Consult the
Troubleshooting Check List.
After the engine has started, raise the throttle to half
position and lower the choke. If the engine stalls at
LOW, or hesitates during acceleration, apply the
choke until the engine reaches its normal operating
temperature.
USING THE THROTTLE CONTROL
The throttle control regulates the engine speed as
measured in RPM (Revolutions Per Minute). This
control should not be used to regulate the tractor’s
ground speed.
The engine in your new TORO Wheel Horse tractor
has a special governor that limits its RPM. This allows
the engine to operate most efficiently at a set speed
and protects it from damage caused by excessive
RPM. Always operate your machine with the throttle
control set at full speed.
USING THE CHOKE CONTROL
The choke controls a “butterfly” valve in the carburetor.
When the choke is partially or completely closed, less
air is admitted to the engine. This results in a higher
fuel-to-air (richer) mixture that is easier to ignite when
the engine is cold. Warm engines may not need
choking.
EN-10
GOING FORWARD OR BACKWARD
The machine has a separate transmission for each
rear wheel. The transmissions are controlled with the
motion control levers —one for each wheel.
A CAUTION
Always move the lever control levers slowly
when placing the machine into motion.
Sudden starts can damage equipment and
cause you to lose control. For safe operation,
never move the motion control levers too
rapidly, especially on grades.
To begin moving, release the parking brake; move the
motion control levers inward from their PARK position
to place them in front of you. To go forward, push
both levers forward evenly. To go in reverse, pull back
on both levers evenly.
CHANGING SPEED OR DIRECTION
To change the machine’s direction, slowly move the
levers to NEUTRAL, then move them in the direction
you want to go.
The farther the levers are moved away from their
NEUTRAL positions, the faster the machine will travel.
To turn the machine left or right, pull one lever back far
enough to cause it to rotate backward at same speed
the opposite wheel is turning forward. Practice turning
in a low-visibility hard surface area before trying to
turn on a lawn surface.
OPERATING
STOPPING
To stop the machine, return both levers evenly to
neutral position. Always engage the parking brake,
shut off the engine and remove the ignition key before
leaving the machine.
SER
Transmission Push Valve Levers
1. Transmission push valve levers
SHUTTING OFF THE ENGINE
To shut off the engine, return the throttle lever to the
Idle position and tum the ignition key to OFF. If the
engine has been working hard or is hot, let it idle a
short time before turning off the key. This will help
cool the engine before stopping.
Note: In an emergency, the engine may be stopped
by turning the ignition key to OFF.
A CAUTION
Always remove the key and set the parking
brake when leaving the tractor unattended,
even if just for a few minutes. Prevent
accidents; don’t give children or unauthorized
persons an opportunity to operate this
machine.
HAND PUSHING THE MACHINE
Note: Hand push the machine only. Do not tow.
Towing can cause severe damage to transmissions.
The machine can be pushed at a slow speed.
Transmission push valves are under the main frame in
front of rear wheels. To release pressure in each
transmission, lift the levers up and to the right into lock
positions. To resume operation, release the levers so
that they are in lowered position.
EN-11
USING ATTACHMENTS
A CAUTION
Read the manuals provided with attachments
before using them. These manuals give a
more detailed description of operation and
stress other areas of caution. Famillarize
yourself thoroughly with equipment before
using it.
USING A MOWER
A WARNING
Keep all shields and the mower discharge
chute in place. Never put your hands or feet
under the mower deck. Never try to clear
discharge areas or mower blades without
disengaging the PTO clutch and removing the
ignition key.
IMPORTANT: Each time you install the mower,
check for correct operation of the PTO clutch and
brake.
For best operation on most lawns, operate the engine
at full throttle while controlling your ground speed with
the transmission. Excessive ground speed often
causes uneven cutting. To get a more even cut, use
the transmission to reduce your ground speed.
Mowing Speed
The mower operates most efficiently at maximum
blade speeds. The machine's speed should allow the
mower blades to maintain this maximum speed while
mowing across turf.
Slow the machine for cutting tall grass, grass that is
heavy with moisture, or when moving uphill. If the
ground speed is too fast, or the blade speed is too
slow, mowing will be uneven because the mower
blades won't able to lift grass into the cutting position
as the mower passes.
EN-12
Mowing Height
You probably know the best cutting height for your
lawn from previous experience. The first time you
mow, set the mower to cut a little higher than you have
in the past. This will help you decide the best
approach to uneven areas and ensure that a wider cut
doesn’t result in scalping the high spots.
When cutting very tall or damp grass, set the mower in
its highest cutting position and enter the area slowly.
If necessary, cut at only a half width, overlapping a
previously cut area on each pass. Then, with the
mower set to the desired height, make a final cut over
the entire area.
Mowing Pattern
The machine will cut an area quickly and efficiently if
you plan the mowing pattern to take full advantage of
the machine’s capabilities. Use a pattern that will
permit as much continuous forward motion and long
straight runs as possible. Avoid repeated tight turns
whenever you can by swinging wide over previously
cut areas after each pass. The system illustrated
below can be used on most lawns and eliminates tight
turn and constant direction changes. Leave tight
corners and close trimming until last.
Efficient Mowing Pattern
USING ATTACHMENTS
OPERATING WITH DRAWBAR-TYPE
ATTACHMENTS
Many attachments use the machine as a towing
vehicle. They are attached or removed from the
machine by installing or removing a single drawbar
hitch pin.
Some of these attachments are powered by a
separate gasoline engine, some are “ground driven”
and some are simply towed, such as a fawn sweeper
or dump cart.
In any case, all attachments should be approached
with the same amount of caution given any
mechanical device. Always read each “Operating
Instruction Manual” carefully before using an
attachment. Keep children and pets away from the
machine when it is operating. Never allow any
unauthorized personnel to operate your equipment.
DUMP CART LOAD LIMITS
Wheel Horse recommends you observe the following
load limits when using the machine with a dump cart.
Load limits have been set to provide for safe braking
on slopes.
275 Ibs (127 kg)
OPERATING WITH A REAR VACUUM
An optional rear-mount vacuum can affect the way the
machine operates. Because of the vacuum's added
weight, it may be necessary to operate the machine at
a slower ground speed.
EN-13
MAINTENANCE
A CAUTION
To minimize chance of injury, do all maintenance and adjustment on your rider with the engine off and
the ignition key removed, unless instructed otherwise in this section. Use extreme care when working
near operating machinery. Do not wear loose fitting clothing. Remove your watch and any jewelry
before beginning work and observe common safety practices when using tools.
MAINTENANCE CHECK LIST
Note: These service intervals are MAXIMUM under normal conditions. Increase frequency under extremely dirty
or dusty conditions.
Service Operation
Before
Each
Use
After
Each
Use
Every
25 Hours
Every
50 Hours
Every
100
Hours
Every
200
Hours/
1 year (2)
Every
1000
Hours
CHECK:
Safety Interlock System
Engine Oil Level
Battery Water Level (3)
Automatic Transmission Oil
Level
General Unit Condition
Parking Brake Adjustment
Tire Pressure (3)
Fasteners Placed & Tight
PTO Electric Clutch & Brake
Adjustment
CLEAN:
Air Filter/Precleaner
Engine Chaff Screen
Engine Exterior & Fins
Breather Valve & Baffle
Cylinder Head Deposits
REPLACE:
Engine Oil Filter
Spark Plugs
Air Filter
In-Line Fuel Filter
LUBRICATE:
Chassis
CHANGE:
Engine Oil (1)
(1) Refer to text for initial service interval for new tractors.
(2) Whichever occurs first.
(3) Or monthly.
EN-14
MAINTENANCE
ENGINE
A COOLING
Check the chaff screen on the engine each time you
use the machine. Restricted air flow through the
engine can cause overheating and engine damage.
yr”: OIL
For maximum engine protection in all operating
conditions, use AP! Service Classification SF oil. This
designation will appear on the oil can.
IMPORTANT: Check oil level of the engine each
time you use the rider. An incorrect oil level can
cause extensive internal damage to the engine.
The oil filler dipstick and oil drain for the engine are
shown in the following illustrations.
To check the engine oil level, stop the machine where
the engine is level. Shut off the engine, set the
parking brake, and remove the ignition key.
A DANGER
Crankcase pressure can blow out hot oli and
cause serious burns. Do NOT check the oil
while the engine is operating.
Remove the oil dipstick from the engine.
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Correct Oil Level
1. Safe range 2. Full mark
Wipe the dipstick with a clean, lint-free cloth; reinstall
it all the way into the block. Remove the dipstick
again and read the scale on the lower portion of the
stick.
Add oil through the oil dipstick tube.
IMPORTANT: Do not overfill the crankcase. Excess
oil causes high oil consumption and oil
accumulation in the air cleaner housing.
Oil Changes
Change the engine oil after the first 25 hours of
operation. After that, change the oil at
50-operating-hour intervals. Change the oil filter after
every 100 hours. If operating conditions are extremely
dusty or dirty, change the oil more often.
IMPORTANT: Failure to change the engine oil at
recommended intervals can seriously damage the
engine.
Before changing the oil, start the engine and let it
warm up. This will cause the oil to flow easier. Then
shut off the engine and remove the key.
To Drain Oil:
Remove the drain plug. After the oil has drained
completely, reinstail the drain piug.
Engine Oil Drain
1. Oil drain plug
EN-15
MAINTENANCE
Engine Oil Dipstick/Fill Tube And Filter
1. Oil dipstick/fill tube 2. Of filter
When replacing the oil filter, unscrew the used filter
and install the new filter on the engine.
Remove the dipstick/oil fill cap and add about 80
percent of the oil specified in following chart. Also
use the correct oil type and viscosity. When using the
temperature/viscosity chart, select the air temperature
you will most likely encounter during the next 50 hours
of operation.
Engine Oil Type Crankcase Oil Capacity
API Service SF or
SF/CC
1.75 gts (1.6 1) without Filter
2 ats (1.9 1) with Filter
ор-20 0 20 32 40 60 80 100
Li т T
2-20 -10 0 10 20 30
TEMPERATURE RANGE ANTICIPATED BEFORE THE NEXT
OIL CHANGE
Engine Oil Temperature-Viscosity Chart
EN-16
After adding 80 percent of the oil, check the oil level.
Add oil as necessary to bring the oil to the “Full” level.
IMPORTANT: Never overfill the engine crankcase
with oil. The oil level must not exceed the “F” level
on the dipstick.
AIR FILTER
Dirt coming through incorrectiy installed, poorly
serviced, or inadequate air filter elements is very
harmful to the engine. Also, a clogged element
causes a richer fuel mixture, which wastes gasoline
and may lead to formation of harmful sludge deposits.
Clean the engine air filter after every 25 hours of
operation (more often if you operate the machine in
extremely dusty conditions).
Replace air filter elements at 200-hour intervals.
Replace them more often in dusty operating
conditions. To protect your engine, use only the
manufacturer's replacement filter or replacement filters
with the same specifications.
Check the following when installing a new or serviced
element:
1. The base must be securely tightened to the
carburetor. Replace the base if it is bent or cracked.
2. Gasket surfaces of the element must be flat
against the base and cover to seal effectively.
3. Tighten screws securely.
4. Be sure cover seals and gaskets are in good
condition and seal properly. Bad gaskets and seals
can let unfiltered air into the carburetor.
IMPORTANT: To prevent any dirt or other
contaminants from entering the engine, always
cover the carburetor air horn when you remove the
air cleaner.
Clean the dry-type air filter element by tapping it
lightly on a flat surface to remove loose dirt particles.
Replace the element if dirt does not drop off easily.
DO NOT wash the elements in liquid. DO NOT try to
blow dirt off with compressed air because this can
puncture the filter element.
MAINTENANCE
Foam pre-cleaners cover the filter elements on some
engines. Clean the pre-cleaner at 25-hour intervals.
Wash the pre-cleaner in a solution of liquid
dishwashing detergent and water. Squeeze out
excess water and let it dry. Coat the pre-cleaner
evenly with two tablespoons of SAE 30 oil, kneading
the oil into the pre-cleaner. Wring out excess oil from
the pre-cleaner, then install the pre-cleaner over the
air cleaner element.
616-Z Air Cleaner Assembly
1. Wing nut 4. Element cover
2. Hood 5. Air cleaner element
3. Wing nut 6. Base
CRANKCASE BREATHER
The engine uses a crankcase breather valve for
maintaining crankcase vacuum. If the crankcase
becomes pressurized as evidenced by oil leaks at the
seals, clean the baffle pack and valve in a solvent.
Check and clean the valve and baffle after every 1,000
hours of operation.
Crankcase Breather
1. Crankcase breather
SPARK PLUG
A spark plug in poor condition or with an incorrect gap
setting often causes engine misfires or generally poor
operation. Spark plugs should be checked after each
100 hours of operation. Replace a spark plug if you
see fouling or excessive deterioration.
Always clean the area around a spark plug before you
remove it to prevent dirt from entering the engine. Use
a spark plug wrench to remove and install piugs.
Check the spark plug. Good operating conditions are
suggested by a light coating of gray or tan deposit. A
dead white, blistered coating could suggest engine
overheating. A biack coating could suggest an
“over-rich” fuel mixture caused by a clogged air
cleaner, or incorrect carburetor adjustment.
Replace spark plugs that are in poor condition. Never
sandblast, wire brush, scrape or otherwise service
a spark plug in poor condition. New plugs give the
best results.
Always check the spark plug gap before installing a
new plug or reinstalling the original plug. Use a spark
plug gap gauge to adjust the electrode air gap to
specification for the engine.
EN-17
MAINTENANCE
CARBURETOR ADJUSTMENT
Your tractor's carburetor was adjusted at the factory
and should not need to be readjusted. However, if
you notice one of the conditions listed below, have the
carburetor readjusted immediately. Continued
operation with an incorrect setting causes fouled
spark plugs, overheating, excessive valve wear or
other problems.
Note: If you notice black exhaust smoke, check the
air cleaner first— an “over-rich” mixture is usually
caused by a poorly serviced, clogged air cleaner
element, not an incorrectly adjusted carburetor.
CONDITION
A. Black, sooty exhaust smoke, engine
sluggish.
B. The engine misses and backfires at high
speed.
C. The engine starts, sputters and dies under
cold weather starting.
D. The engine runs rough or stalls at idle
speed.
POSSIBLE CAUSE/PROBABLE REMEDY
Mixture too rich —readjust main fuel needle.
Mixture too lean —readjust main fuel needle.
Mixture too lean — readjust main fuel needle.
о о W >
Idle speed too low or incorrect idle
adjustment— readjust speed then idie
adjustment screw, if needed.
Carburetor Adjustment Chart
Correct carburetor adjustment requires a specialized
knowledge and equipment. Also, other adjustments
such as governor settings may be necessary after
adjusting carburetor. For these reasons, we
recommend an authorized TORO Wheel Horse dealer
do carburetor adjustments.
EN-18
FUEL SYSTEM
À fine-mesh, screen-type strainer in the fitting at the
bottom of the fuel tank filters foreign matter from
gasoline before it reaches the carburetor. This strainer
requires service only if the fuel supply becomes
contaminated.
Fuel Strainer
1. Fuel strainer in tank
Always clean the area around the fuel cap before you
remove it to prevent dirt from entering the fuel system.
Also make sure your fuel storage container is clean
and in good condition.
Keep the fuel tank full during winter. (Cold and damp
weather can cause moisture to condense in the tank.)
THE EXHAUST SYSTEM
Make regular visible and audible inspections of the
exhaust system throughout the machine's life. Look
for leaks in the muffler and piping while the engine is
running. For your personal safety, repair all leaks
immediately after you find them.
A DANGER
Inhaling exhaust gases can cause serious
personal injury or death. Inspect the exhaust
system for leaks and repair any leaks you find
immediately.
MAINTENANCE
THE ELECTRICAL SYSTEM
The Alternator
An alternator charges the battery. This charging
system normally needs no service — other than
periodic checks that all exposed wiring and electrical
connections are clean, tight and in good condition.
IMPORTANT: Correct polarity is critical with an
alternator-type charging system. Always
disconnect the battery ground cable (negative)
before you work on any part of the electrical
system. Make sure all components are connected
correctly before reconnecting the ground cable
(negative). Otherwise, you may damage the
alternator system.
Never run the engine if the battery is removed, or if
the battery is not connected to the charging
system. Serious damage to charging system
components may result.
Fuses
Three fuses protect the machine's electrical system
and components from excessive current and short
circuits. These fuses are in a fuse holder clipped to
the machine’s frame under the seat:
e A 10-amp fuse protects the clutch & hour meter.
e A 20-amp fuse protects the switch circuit.
e A 30-amp fuse protects the charging circuit.
Fuse Locations
1. Fuse block
A “blown” fuse indicates short circuits or current
overloads.
Battery
IMPORTANT: When servicing the battery or any
other part of the electrical system, or if you must
remove the battery for any reason, always
disconnect the negative (ground) cable FIRST and
reconnect it LAST to avoid electrical shorts.
Keep the electrolyte level above the plates in each
cell by adding distilled water. The best time to add
water is just before you operate the tractor so the
water will mix with the solution. Do not overfill the
battery. Electrolyte solution is corrosive; overfilling
can damage surrounding metal parts. The battery
should be maintained at a 1.265 specific gravity
charge.
When the battery has been out of the tractor for
servicing, take care to re-connect cables to the
battery exactly as they were before removal.
For longest service life, keep the battery clean by
wiping it off with a paper towel. Any corrosion around
the battery terminals should be removed by applying a
solution of one-part baking soda to four-parts water.
A light coating of grease or petroleum jelly applied to
all exposed terminal surfaces can prevent corrosion.
IMPORTANT: At temperatures below 32° F (0° C),
a full charge state must be maintained to prevent
cell electrolyte from freezing and causing
permanent battery damage.
EN-19
MAINTENANCE
HYDROSTATIC TRANSMISSION
Separate transmissions control each rear wheel.
Check the lubricant level in both reservoirs before
each use. Check levels when the oil is COLD. The
transmission's oil level should be at the line on the
reservoirs.
Note: Use care to prevent dint, clippings or other
foreign material from entering the transmission during
oil level checks, oil fillings, or oil changes.
Changing oil in transmissions is not recommended
except for major service. If you add oil often, a leak is
probable and should be corrected immediately.
Oil capacity for each transmission is 1.5 gt. (1.4 |).
Oil specifications are: SAE 20 A.PI. Service SC, SD,
SE, SF.
Transmission Oil Level
1. Transmission oil level
Transmission Cooling Fans
A cooling fan is bolted to each transmission input
shaft. The fan forces air over the transmission cooling
fins to cool the transmission oil. Replace a cooling
fan if it becomes cracked or broken. Be sure to install
it so that maximum airflow is directed across the
transmission.
Keep the cooling fins on transmissions clean for best
cooling efficiency. Periodically inspect them for dirt
build-up, and brush or wash out any accumulated dirt
or clippings. If you use pressure-washing equipment,
avoid directing the spray at joints and seal areas to
prevent forcing water into the reservoir system.
EN-20
LUBRICATION
Grease Fittings
Lubricate all grease fittings after every 25 hours of
operation with #2 multi-purpose lithium base grease.
Lubricate other pivoting arms and levers at the same
intervals with light machine oil applied directly to wear
surfaces. Before using the grease gun, clean zerk
fittings carefully to prevent dirt from being forced into
them. Wipe off any excess grease.
Front Grease Fittings
MAINTENANCE
PTO ELECTRIC CLUTCH/BRAKE
The PTO electric clutch/brake may require periodic
adjustment due to normal wear of friction surfaces.
Check the PTO electric clutch/brake adjustment every
100 hours.
To adjust the PTO Electric Clutch/Brake:
1. Stop the engine, set the parking brake and
remove the ignition key.
2. The clutch has three springs and adjustment nuts.
All three must be adjusted equally
3. Insert a .010 in. feeler gauge into the three air gap
inspection slots, one at a time, and turn the
adjustment nuts until a small amount of resistance is
felt on the feeler gauge.
PTO Electric Clutch/Brake Adjustment
1. Adjustment Nut (3) 2. Inspection slot (3)
THE PARKING BRAKE ADJUSTMENT
Each rear wheel has a separate parking brake. Adjust
both sides simultaneously. To adjust the parking
brake:
1. Block both rear wheels. Loosen the lock nuts and
adjustment bolts.
2. Engage the parking brake.
3. Tighten the adjustment boits to 10-20 in. Ibs
(1-1/2 turns after you feel resistance on the bolts).
4. Hold the adjustment boits and tighten the lock
nuts.
5. Remove the blocks. Both rear wheels should
slide when the machine is pushed.
6. With the parking brake released, the machine
should move freely. Engage the transmission push
valves.
CLEANING AND STORAGE
After 30 days, wax your rider's painted surfaces to
protect the luster of the original finish. Wash the rider
regularly with a mild automotive-type detergent and
water. Coat exposed bare metal surfaces with oil or a
light coating of grease to prevent rust until you can
make permanent repairs. Aerosol cans of touch-up
paint are available through your authorized TORO
Wheel Horse dealer.
Parking Brake Adjustment
1. Lock nut 2. Adjustment bolt
When you will not use the tractor for an extended
period, take the following steps to ensure minimum
difficulty when you return the unit to service:
1. Do the required maintenance steps described in
the “Maintenance Check List.”
2. Check the tires for correct inflation.
3. Wash the machine and repaint all bare metal
surfaces.
4. Start the machine and engage the mower for one
(1) minute to remove excess water from belts and
pulleys. Let the engine run out of gas. (As gasoline
grows old, it becomes less volatile and forms harmful
gums and varnish deposits in the carburetor and fuel
system.) DO NOT STORE GASOLINE FOR MORE
THAN 2 MONTHS.
5. Charge the battery. In temperatures lower than
40° F (4° C), a battery will keep a charge for about 60
days. in temperatures above 40° F (4° C), the water
level should be checked and the battery “trickle
charged” every 30 days (more often in higher
temperatures). The battery must be fully charged to
prevent freezing and internal damage in weather
below 32° F(0° С).
6. Remove the key from the tractor.
EN-21
TROUBLESHOOTING CHECK LIST
Symptom
Possible Cause
Possible Remedy
The engine will not turn over.
The engine turns over but will
not start.
Dead battery.
Safety interlock switch.
Fuse.
Starter or solenoid.
Ignition switch.
Spark plug is not firing.
Ignition system.
No fuel in tank.
Incorrect carburetor adjustment.
Charge or replace the battery.
Be sure the mower is disengaged and
the parking brake is engaged.
Replace the fuse.
Consult an authorized dealer.
Consult an authorized dealer.
Check the spark plug condition and
reset the gap.
Consult an authorized dealer.
Fill the tank.
Reset the carburetor adjustment.
The engine is hard to start.
Spark plug wire is grounded or loose.
Ignition system.
Spark plug is faulty or incorrectly
gapped.
Fuel line is clogged.
Carburetor dirty or incorrectly adjusted.
Check spark plug wires.
Consult an authorized dealer.
Check spark plug condition and reset
gap.
Clean the fuel line.
Readjust the carburetor. Consult an
authorized dealer for carburetor
service.
The engine starts, but operates
erratically.
Clogged fuel line.
Water in the fuel
Vent in fuel cap is closed or plugged.
Incorrect carburetor adjustment.
Clean the fuel line.
Drain old fuel and replace it with fresh
fuel.
Check the cap vent.
Readjust the carburetor.
The engine knocks.
Fuel's octane is too low.
Ignition system.
Engine overheated.
Drain fuel and replace it with a higher
octane supply.
Consult an authorized dealer.
Shut off the engine and allow to cool.
The engine occasionally
“skips” at high speed.
The spark plug is fouled, faulty or its
gap is too wide.
Ignition system.
Incorrect carburetor adjustment.
Check spark plug condition and gap.
Consult an authorized dealer.
Readjust carburetor.
Engine overheating.
Clogged air intake screen or fins.
Oil level is too high or too low.
Fuel mixture is too lean.
Ignition system.
Engine is overloaded.
Clean intake screen and fins.
Adjust the oil level as necessary.
Readjust the carburetor.
Consult an authorized dealer.
Reduce the load.
The engine idles poorly.
Incorrect carburetor adjustment.
Incorrect spark plug gap.
Readjust the carburetor.
Check the condition and gap of the
spark plug.
The engine backfires.
Incorrect carburetor adjustment.
Ignition system.
Readjust the carburetor.
Consult an authorized dealer.
Engine runs fine, but rider will
not move.
Faulty transmission/drive belt.
Transmission push valve is engaged.
Consult an authorized dealer.
Release push valve.
EN-22