MTD RZT Series User manual

Safe Operation Practices • Set-Up • Operation • Maintenance • Service • Troubleshooting • Warranty
L
RZT Series Tractor
MTD LLC, P.O. BOX 361131 CLEVELAND, OHiO 44136-0019
PrintedInUSA FormNo.769-05418
(June8,2010)

ToTheOwner 1
ThankYou
Thank you for purchasing an MTD Zero Turn Tractor. It was
carefully engineered to provide excellent performance when
properly operated and maintained.
Please read this entire manual prior to operating the equipment.
It instructs you how to safely and easily set up, operate and
maintain your machine. Please be sure that you, and any other
persons who will operate the machine, carefully follow the
recommended safety practices at all times. Failure to do so could
result in personal injury or property damage.
All information in this manual is relative to the most recent
product information available at the time of printing. Review
this manual frequently to familiarize yourself with the machine,
its features and operation. Please be aware that this Operator's
Manual may cover a range of product specifications for various
models. Characteristics and features discussed and/or illustrated
in this manual may not be applicable to all models. We reserve
the right to change product specifications, designs and
equipment without notice and without incurring obligation.
If you have any problems or questions concerning the machine,
phone your local authorized MTD service dealer or contact us
directly. MTD's Customer Support telephone numbers, website
address and mailing address can be found on this page. We want
to ensure your complete satisfaction at all times.
Throughout this manual, all references to right and left side of the
machine are observed from the operating position
The engine manufacturer is responsible for all engine-related
issues with regards to performance, power-rating, specifications,
warranty and service. Please refer to the engine manufacturer's
Owner's/Operator's Manual, packed separately with your
machine, for more information.
Table of Contents
Safe Operation Practices ........................................ 3
Assembly &Set-Up .................................................. 9
Controls & Features ................................................ 12
Operation ................................................................ 15
Maintenance &Adjustment. ................................ 22
Service .................................................................... 29
Troubleshooting .................................................... 35
Replacement Parts ................................................ 37
Attachments & Accessories .................................. 39
Warranties ............................................................. 42
RecordProductinformation
Before setting up and operating your new equipment, please
locate the model plate on the equipment and record the
information in the provided area to the right. Pivot the seat
assembly forward to locate the model plate on the underside of
the seat pivot bracket. This information will be necessary, should
you seek technical support via our web site, Customer Support
Department, or with a local authorized service dealer.
MODEL NUMBER
DIqFllqFllqFllqNIqD
SERIALNUMBER
DIqFIIqFIIqFIIqFIIqD
CustomerSupport
Please do NOT return the machine to the retailer or dealer without first contacting our Customer Support Department.
If you have difficulty assembling this product or have any questions regarding the controls, operation, or maintenance of
this machine, you can seek help from the experts. Choose from the options below:
0 Visit us on the web at www.mtdproducts.com
0 Call a Customer Support Representative at (800) 800-7:310 or (330) 220-468:3
0 Write us at MTD LLC •RO. Box :3611:31 •Cleveland, OH •441:36-0019

ImportantSafeOperationPractices 2
,A
WARNING! This symbol points out important safety instructions which, if not followed,
could endanger the personal safety and/or property of yourself and others. Read and follow
all instructions in this manual before attempting to operate this machine. Failure to comply
with these instructions may result in personal injury.
When you see this symbol. HEED ITS WARNING!
CALIFORNIA PROPOSITION 65
WARNING! Engine Exhaust, some of its constituents, and certain vehicle components
contain or emit chemicals known to State of California to cause cancer and birth defects
or other reproductive harm.
WARNING! Battery posts, terminals, and related accessories contain lead and lead
compounds, chemicals known to the State of California to cause cancer and reproductive
harm. Wash hands after handling
DANGER! This machine was built to be operated according to the safe operation practices in
this manual. As with any type of power equipment, carelessness or error on the part of the
operator can result in serious injury. This machine is capable of amputating hands and feet
and throwing objects. Failure to observe the following safety instructions could result in
serious injury or death.
GeneralOperation
1. Read, understand, and follow all instructions on the
machine and in the manual(s) before attempting to
assemble and operate. Keep this manual in a safe place for
future and regular reference and for ordering replacement
parts.
2. Be familiar with all controls and their proper operation.
Know how to stop the machine and disengage them
quickly.
3. Never allow children under 14 years of age to operate this
machine. Children 14 and over should read and understand
the instructions and safe operation practices in this manual
and on the machine and should be trained and supervised
by an adult.
4. Never allow adults to operate this machine without proper
instruction.
5_ To help avoid blade contact or a thrown object injury,
keep bystanders, helpers, children and pets at least 75 feet
from the machine while it is in operation. Stop machine if
anyone enters the area.
6. Thoroughly inspect the area where the equipment is to be
used. Remove all stones, sticks, wire, bones, toys, and other
foreign objects which could be picked up and thrown by
the blade(s). Thrown objects can cause serious personal
injury.
7. Plan your mowing pattern to avoid discharge of material
toward roads, sidewalks, bystanders and the like. Also,
avoid discharging material against a wall or obstruction
which may cause discharged material to ricochet back
toward the operator.
8. Always wear safety glasses or safety goggles during
operation and while performing an adjustment or repair
to protect your eyes. Thrown objects which ricochet can
cause serious injury to the eyes.
9. Wear sturdy, rough-soled work shoes and close-fitting
slacks and shirts. Loose fitting clothes and jewelry can be
caught in movable parts. Never operate this machine in
bare feet or sandals.
10. Be aware of the mower and attachment discharge direction
and do not point it at anyone. Do not operate the mower
without the discharge cover or entire grass catcher in its
proper place.
11. Do not put hands or feet near rotating parts or under the
cutting deck. Contact with the blade(s) can amputate
hands and feet.

23.
24.
12. Amissingordamageddischargecovercancauseblade
contactorthrownobjectinjuries.
13. Stoptheblade(s)whencrossinggraveldrives,walks,or
roadsandwhilenotcuttinggrass.
14. Watchfortrafficwhenoperatingnearorcrossing
roadways.Thismachineisnotintendedforuseonany
publicroadway.
15. Donotoperatethemachinewhileundertheinfluenceof
alcoholordrugs.
16. Mowonlyindaylightorgoodartificiallight.
17. Nevercarrypassengers.
18. Backupslowly.Alwayslookdownandbehindbeforeand
whilebackingtoavoidaback-overaccident.Beaware
andpayattentiontothesafetysystemfunctionthat
stopspowertothebladeswhendrivinginreverse.Ifnot
fuctioningproperly,contactanauthorizeddealerforsafety
systeminspectionandrepair.
19. Slowdownbeforeturning.Operatethemachinesmoothly.
Avoiderraticoperationandexcessivespeed.
20. Disengageblade(s),setparkingbrake,stopengineandwait
untiltheblade(s)cometoacompletestopbeforeremoving
grasscatcher,emptyinggrass,uncloggingchute,removing
anygrassordebris,ormakinganyadjustments.
21. Neverleavearunningmachineunattended.Alwaysturnoff
blade(s),placedrivecontrolleversinneutral,setparking
brake,stopengineandremovekeybeforedismounting.
22. Useextracarewhenloadingorunloadingthemachineinto
atrailerortruck.Thismachineshouldnotbedrivenupor
downramp(s),becausethemachinecouldtipover,causing
seriouspersonalinjury.Themachinemustbepushed
manuallyonramp(s)toloadorunloadproperly.
Mufflerandenginebecomehotandcancauseaburn.Do
nottouch.
25.
26.
Checkoverheadclearancescarefullybeforedrivingunder
lowhangingtreebranches,wires,dooropeningsetc.,
wheretheoperatormaybestruckorpulledfromthe
machine,whichcouldresultinseriousinjury.
Disengageallattachmentclutches,settheparkingbrake
tothe'ON'positionandmovetheRHandLHdrivecontrol
leverstotheneutralpositionbeforeattemptingtostartthe
engine.
Yourmachineisdesignedtocutnormalresidentialgrassof
aheightnomorethan10".Donotattempttomowthrough
unusuallytall,drygrass(e.g.,pasture)orpilesofdryleaves.
Drygrassorleavesmaycontacttheengineexhaustand/
orbuilduponthemowerdeckpresentingapotentialfire
hazard.
27. Useonlyaccessoriesandattachmentsapprovedforthis
machinebythemachinemanufacturer.Read,understand
andfollowallinstructionsprovidedwiththeapproved
accessoryorattachment.
28. Dataindicatesthatoperators,age60yearsandabove,are
involvedinalargepercentageofridingmower-related
injuries.Theseoperatorsshouldevaluatetheirability
tooperatetheridingmowersafelyenoughtoprotect
themselvesandothersfromseriousinjury.
29. Ifsituationsoccurwhicharenotcoveredinthismanual,use
careandgoodjudgment.Contactyourcustomerservice
representativeforassistance.
SlopeOperation
Slopes are a major factor related to loss of control and tip-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 it, do not mow it.
For your safety, use the slope gauge included as part of this
manual to measure slopes before operating this machine on
a sloped or hilly area. If the slope is greater than 15 degrees as
shown on the slope gauge, do not operate this machine on that
area or serious injury could result.
Do:
I. Mow across slopes, not up and down. Exercise extreme
caution when changing direction on slopes.
2. Watch for holes, ruts, bumps, rocks, or other hidden
objects. Uneven terrain could overturn the machine. Tall
grass can hide obstacles.
3. Use slow speed. Choose a low enough speed so that you
will not have to stop while on the slope. Avoid starting
or stopping on a slope. If the tires are unable to maintain
traction, disengage the blades and proceed slowly and
carefully straight down the slope.
4. Follow the manufacturer's recommendations for wheel
weights or counterweights to improve stability.
5. Use extra care with grass catchers or other attachments.
These can change the stability of the machine.
6. Keep all movement on the slopes slow and gradual. Do
not make sudden changes in speed or direction. Rapid
acceleration or deceleration could cause the front of the
machine to lift and rapidly roll over backwards, which
could cause serious injury.
DoNot:
I. Do not turn on slopes unless necessary; then turn slowly
uphill and use extra care while turning.
2. Do not mow near drop-offs, ditches or embankments. The
mower could suddenly turn over if a wheel is over the edge
of a cliff, ditch, or if an edge caves in.
3. Do not try to stabilize the machine by putting your foot on
the ground.
4. Do not use a grass catcher on steep slopes.
5. Do not mow on wet grass. Reduced traction could cause
sliding.
6. Do not tow heavy pull behind attachments (e.g. loaded
dump cart, lawn roller, etc.) on slopes greater than 5
degrees. When going down hill, the extra weight tends
to push the tractor and may cause you to loose control
(e.g. tractor may speed up, braking and steering ability are
reduced, attachment may jack-knife and cause tractor to
overturn).
4 I SECTION 2 -- IMPORTANT SAFE OPERATION PRACTICES

Children
1. Tragic accidents ca n occur if the operator is not alert to the
presence of children. Children are often attracted to the
machine and the mowing activity. They do not understand
the dangers. Never assume that children will remain where
you last saw them.
a. Keep children out of the mowing area and in
watchful care of a responsible adult other than the
operator.
b. Be alert and turn machine off if a child enters the
area.
c. To avoid back-over accidents, always look behind
and down for small children.
d. Never carry children, even with the blade(s) shut off.
They may fall offand be seriously injured or interfere
with safe machine operation.
e. Use extreme care when approaching blind corners,
doorways, shrubs, trees or other objects that may
blockyour vision of a child who may run into the
path of the machine.
f. Keep children away from hot or running engines.
They can suffer burns from a hot muffler.
g. Remove key when machine is unattended to
prevent unauthorized operation.
2. Never allow children under 14 years of age to operate this
machine. Children 14 and over should read and understand
the instructions and safe operation practices in this manual
and on the machine and should be trained and supervised
by an adult.
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. Follow the manufacturers recommendation for weight
limits for towed equipment and towing on slopes.
3. Never allow children or others in or on towed equipment.
4. On slopes, the weight of the towed equipment may cause
loss of traction and loss of control.
5.
6.
7.
Travel slowly and allow extra distance to stop.
Do not shift to neutral and coast downhill.
Do not tow heavy pull behind attachments (e.g. loaded
dump cart, lawn roller, etc.) on slopes greater than 5
degrees. When going down hill, the extra weight tends
to push the tractor and may cause you to loose control
(e.g. tractor may speed up, braking and steering ability are
reduced, attachment may jack-knife and cause tractor to
overturn).
Service
SafeHandling of 6as01ine:
1. To avoid personal injury or property damage use extreme
care in handling gasoline. Gasoline is extremely
flammable and the vapors are explosive. Serious
personal injury can occur when gasoline is spilled on
yourself or your clothes which can ignite. Wash your skin
and change clothes immediately.
a. Use only an approved gasoline container.
b. Never fill containers inside a vehicle or on a truck
or trailer bed with a plastic liner. Always place
containers on the ground away from your vehicle
before filling.
c. When practical, remove gas-powered equipment
from the truck or trailer and refuel it on the ground.
If this is not possible, then refuel such equipment on
a trailer with a portable container, rather than from a
gasoline dispenser nozzle.
d. 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.
e. Extinguish all cigarettes, cigars, pipes and other
sources of ignition.
f. Never fuel machine indoors.
g. Never remove gas cap or add fuel while the engine
is hot or running. Allow engine to cool at least two
minutes before refueling.
h. Never over fill fuel tank. Fill tank to no more than 1/2"
below bottom of filler neck to allow space for fuel
expansion.
i. Replace gasoline cap and tighten securely.
j. If gasoline is spilled, wipe it off the engine and
equipment. Move machine to another area. Wait 5
minutes before starting the engine.
k. To reduce fire hazards, keep machine free of grass,
leaves, or other debris build-up. Clean up oil or fuel
spillage and remove any fuel soaked debris.
I. Never store the machine or fuel container inside
where there is an open flame, spark or pilot light
as on a water heater, space heater, furnace, clothes
dryer or other gas appliances.
m. Allow a machine to cool at least five minutes before
storing.
6eneral Service
1. Never run an engine indoors or in a poorly ventilated area.
Engine exhaust contains carbon monoxide, an odorless,
and deadly gas.
2. Before cleaning, repairing, or inspecting, make certain the
blade(s) and all moving parts have stopped. Disconnect the
spark plug wire and ground against the engine to prevent
unintended starting.
3. Periodically check to make sure the blades come to
complete stop within approximately (5) five seconds after
operating the blade disengagement control. If the blades
do not stop within the this time frame, your machine
should be serviced professionally by an authorized dealer.
4. Regularly check the safety interlock system for proper
function, as described later in this manual. If the safety
interlock system does not function properly, have your
machine serviced professionally by an authorized dealer.
SECTION 2 -- IMPORTANT SAFE OPERATION PRACTICES S

5. Check the blade(s) and engine mounting bolts at frequent
intervals for proper tightness. Also, visually inspect blade(s)
for damage (e.g., excessive wear, bent, cracked). Replace
the blade(s) with the original equipment manufacturer's
(O.E.M.)blade(s) only, listed in this manual. "Use of parts
which do not meet the original equipment specifications
may lead to improper performance and compromise
safety!"
6. Mower blades are sharp. Wrap the blade or wear gloves,
and useextra caution when servicing them.
7. Keep all nuts, bolts, and screws tight to be sure the
equipment isin safeworking condition.
8. Never tamper with the safety interlock system or other
safety devices. Check their proper operation regularly.
9. After striking aforeign object, stop the engine, disconnect
the spark plug wire(s) and ground against the engine.
Thoroughly inspect the machine for any damage. Repair
the damage before starting and operating.
10. Never attempt to make adjustments or repairs to the
machine while the engine is running.
11. Grasscatcher components and the discharge cover are
subject to wear and damage which could expose moving
parts or allow objects to be thrown. For safety protection,
frequently check components and replace immediately
with original equipment manufacturer's (O.E.M.)parts only,
listed in this manual. "Use of parts which do not meet the
original equipment specifications may lead to improper
performance and compromise safety!"
12. Do not change the engine governor settings or over-speed
the engine. The governor controls the maximum safe
operating speed of the engine.
13. Maintain or replace safety and instruction labels, as
necessary.
14. Observe proper disposal laws and regulations for gas,oil,
etc. to protect the environment.
15. According to the Consumer Products Safety Commission
(CPSC)and the U.S.Environmental Protection Agency (EPA),
this product hasan Average UsefulLife of seven (7)years,
or 270 hours of operation. At the end of the Average Useful
Life havethe machine inspected annually by an authorized
service dealer to ensure that all mechanical and safety
systems are working properly and not worn excessively.
Failure to do so can result in accidents, injuries or death.
Donotmodifyengine
To avoid serious injury or death, do not modify engine in any
way. Tampering with the governor setting can lead to a runaway
engine and cause it to operate at unsafe speeds. Never tamper
with factory setting of engine governor.
NoticeRegardingEmissions
Engines which are certified to comply with California and federal
EPA emission regulations for SORE (Small Off Road Equipment)
are certified to operate on regular unleaded gasoline, and
may include the following emission control systems: Engine
Modification (EM) and Three Way Catalyst (TWC) if so equipped.
SparkArrestor
i_lh WARNING! This machine is equipped with an
internal combustion engine and should not be used
on or near any unimproved forest-covered, brush-
covered or grass-covered land unless the engine's
exhaust system is equipped with a spark arrester
meeting applicable local or state laws (if any).
If a spark arrester is used, it should be maintained in
effective working order by the operator. In the State of California
the above is required by law (Section 4442 of the California
Public Resources Code). Other states may have similar laws.
Federal laws apply on federal lands.
A spark arrester for the muffler is available through your
nearest engine authorized service dealer or contact the service
department, RO. Box 361131 Cleveland, Ohio 44136-0019.
6ISECTION 2 -- IMPORTANT SAFE OPERATION PRACTICES

Safety Symbols
This page depicts and describes safety symbols that may appear on this product. Read, understand, and follow all instructions on the
machine before attempting to assemble and operate.
M
®
!!l"
N
READ THE OPERATOR'S MANUAL(S)
Read, understand, and follow all instructions in the manual(s) before attempting to
assemble and operate
WARNING-- ROTATING BLADES
Do not put hands or feet near rotating parts or under the cutting deck. Contact with the
blade(s) can amputate hands and feet.
WARNING--THROWN OBJECTS
This machine may pick up and throw and objects which can cause serious personal injury.
WARNING--THROWN OBJECTS
This machine may pick up and throw and objects which can cause serious personal injury.
BYSTANDERS
Keep bystanders, helpers, children and pets at least 75 feet from the machine while it is in
operation.
WARNING-- SLOPE OPERATION
Do not operate this machine on a slope greater than 15 degrees.
DANGER -- ROTATING BLADES
To reduce the risk of injury, keep hands and feet away. Do not operate unless discharge cover
or grass catcher is in its proper place. If damaged, replace immediately.
WARNING! Your Responsibility-- Restrict the use of this power machine to persons who read, understand and
follow the warnings and instructions in this manual and on the machine.
SAVETHESEINSTRUCTIONS!
SECTION 2 -- IMPORTANT SAFE OPERATION PRACTICES 7

co
R
-4
6
Z
I
o
6
Z
-4
!
|
|
|
or a corner of a building...
|
15°
Use this page as a guide to determine slopes where you may not operate safely.
WARNING! Do not operate your lawn mower on such slopes. Do not mow on inclines with a slope in excess of 15 degrees (a
rise of approximately 2-1/2 feet every 10 feet).
OPERATE zero turn tractors across the face of slopes rather than up and down. Begin with the first pass across the bottom of
the slope and turn uphill at the end of each pass whenever possible.

Assembly& Set-Up 3
Contents of Crate
One Lawn Tractor
One RZT Tractor Operator's
Manual
One Oil Drain Hose (If Equipped)
One Engine Operator's Manual
One Deck Wash Hose Coupler
NOTE:This Operator's Manual covers several models. Tractor
features may vary by model. Not all features in this manual are
applicable to all tractor models and the tractor depicted may
differ from yours.
TractorPreparation
Remove the upper crating material from the shipping pallet, and
cut any bands or tie straps securing the tractor to the pallet.
Use the lift handle to raise the deck to its highest position.
Engage the transmission bypass rods on each side of the
tractor; then carefully roll the tractor off the shipping pallet.
The transmission bypass rods (one for each the RH and LH
transmission) are located beneath the frame platform, just inside
each rear wheel. Disengage the bypass rods. See Fig. 3-1.
RH Transmission
Bypass Rod
Pull Out Bypass
Rod Then Lower i
into Slot
Keyhole Slot
i
J
Figure 3-1
Remove the deck wash system nozzle adapter and oil drain tube
from the manual bag and store for future use.
Install Operator'sSeat
To install the seat proceed as follows:
NOTE:The seat is shipped with the seat switch and seat pan
attached.
1. Cut any straps securing the seat assembly and the drive
control levers to the tractor. Remove any packing material.
NOTE: Be careful not to cut the wiring harness connecting the
seat and the seat switch in the bottom of the seat.
2.
r"
3.
Remove the two shoulder bolts and lock nuts in the seat
_an as shown in Fig. 3-2.
Shoulder
Bolt
Seat Pan
Figure 3=2
Rotate the seat into position and secure the seat into place
with the previously removed shoulder bolts and lock nuts.
Be careful not to crimp or damage the wire harness while
installing the seat. See Fig. 3-3.
Shoulder
Bolts
Figure 3=3
J

Position DriveControllevers
2.
The drive control levers of the tractor are lowered for shipping
purposes. The flange lock nuts, hex screws, and flat washers that
normally secure the control levers in their operating position
are unfastened and installed in the slotted holes of the control
levers for shipment. The control levers must be repositioned to
operate the tractor. To reposition the control levers for operation,
proceed as follows:
Remove the hex screw, flat washer, and flange lock nut
from the slot of one of the drive control levers.
Lift and swing that control lever upward until the slotted
hole in the lever bracket aligns with one of the holes in the
pivot bracket. See Fig. 3-4.
Lift Control
Lever Upwa rd
Pivot
Figure 3-4
3. Slide the flat washer onto the hex screw. From the outside,
insert the hex screw with washer through the control lever
slot and the hole of the pivot bracket. Secure with the
flange lock nut. See Fig. 3-4.
4. Note the relative position of the control lever to the pivot
bracket, then repeat the previous steps to reposition the
other control lever in approximately the same position.
5. Refer to "Adjusting the Drive Control Levers" in the
Maintenance & Adjustments section for instructions on the
final adjustment of the levers.
Connectingthe BatteryCables
CALIFORNIA PROPOSITION 65 WARNING:
Battery posts, terminals, and related accessories
contain lead and lead compounds, chemicals known
to the State of California to cause cancer and
reproductive harm. Wash hands after handling.
CAUTION: When attaching battery cables, always
connect the POSITIVE (Red) wire to its terminal first,
followed by the NEGATIVE (Black) wire.
For shipping reasons, both battery cables on your equipment
may have been left disconnected from the terminals at the
factory. To connect the battery cables, proceed as follows:
NOTE:The positive battery terminal is marked Pos. (+). The
negative battery terminal is marked Neg. (-).
NOTE: If the positive battery cable is already attached, skip
ahead to step 2.
1. Remove the plastic cover, if present, from the positive
battery terminal and attach the red cable to the positive
battery terminal (+) with the bolt and hex nut. See Fig. 3-5.
r
Figure 3-5
2. Remove the plastic cover, if present, from the negative
battery terminal and attach the black cable to the negative
battery terminal (-) with the bolt and hex nut. See Fig. 3-5.
3. Position the red rubber boot over the positive battery
terminal to help protect it from corrosion.
NOTE: If the battery is put into service after the date shown
on top/side of battery, charge the battery as instructed in the
Maintenance section your Operator's Manual prior to operating
the tractor.
SECTION 2-- ASSEMBLY&SET-UP

LowerDeckDischargeChuteDeflector
WARNING! Never operate the mower deck without
the chute deflector installed and in the down
position.
Check the mower deck for a shipping brace (with tag) that may
be holding the chute deflector upward for shipment. Ira brace
is present, it must be removed before operating the tractor.
Holding the chute deflector fully upward, remove the shipping
brace by grasping it and rotating it clockwise. Lower the chute
deflector. See Fig. 3-6.
Figure 3=6
SECTION 2 -- ASSEMBLY&SET-UP 11

ControlsandFeatures 4
F
Throttl_
Parking Brake
Deck Height
index
Deck Lift
Handle
O
Hour Meter/
indicator
LH Drive RH Drive
Control Lever Control Lever
Switch
nition Switch
Seat Adjustment Lever
I
Fuel Tank Ca
Cup Holder
Tray
Figure 4-1
NOTE:This Operator's Manual covers several models. Tractor
features may vary by model. Not all features in this manual are
applicable to all tractor models and the tractor depicted may
differ from yours.
NOTE: References to LEFT, RIGHT, FRONT, and REAR indicate that
position on the tractor when facing forward while seated in the
operator's seat.
RHandLHDriveControl Levers
The RH and LH control levers are located on each side of the
operator's seat. These hinged levers pivot outward to open
space to permit the operator to either sit in the tractor seat, or to
dismount the tractor. The levers must be fully opened out and in
the neutral position to start the tractor engine.
Each lever controls the respective RH or LH transmission.
Consequently, these levers control all of the movements of the
tractor. Driving and steering utilizing these control levers is
quite different from conventional tractors, and will take some
practice to master. Refer to Operation for instructions on using
the control levers.
DeckHeightIndex
The deck height index consists of six index notches
located on the front/right of the seat box frame. Each
notch corresponds to a 1/S'change in the deck height
position ranging from 1-1/2"at the lowest notch to 4" at
the highest notch.
DeckLift Handle
The deck lift handle is located on the front/right of
the seat box frame, and is used to raise and lower the
mower deck.
Pull the handle to the left out of the index notch and
push downward to lower the deck, or pull upward to
raise the deck. When the desired height is attained,
move the lift handle to the right until fully in the index
notch.

ignition Switch
The ignition switch is located on the RH console
to the right of the operator's seat. The ignition
switch has three positions as follows:
OFF -- The engine and electrical system is
turned off.
RUN -- The tractor electrical system is energized.
START-- The starter motor will turn over the engine. Release the
key immediately when the engine starts
NOTE:To prevent accidental starting and/or battery discharge,
remove the key from the ignition switch when the tractor is not
in use.
PowerTake-Off(PTO)Switch
The PTO switch is located on the RH console to
the right of the operator's seat.
The PTO switch operates the electric PTO
clutch mounted on the bottom of the engine
crankshaft. Pull the switch knob upward to
engage the PTO clutch, or push the knob
downward to disengage the clutch.
The PTO switch must be in the "disengaged"
position when starting the engine.
PTO
I Q
0-J
Transmission BypassRods(Not Visible)
The transmission bypass rods (one for each the RH and LH
transmission) are located beneath the frame platform, just inside
each rear wheel.
When engaged, the two rods open a bypass within the
hydrostatic transmissions, which allows the tractor to be pushed
short distances by hand. Refer to the Maintenance & Adjustments
section for instructions on using the bypass feature.
CAUTION: Never tow your tractor. Towing the
tractor with the rear wheels on the ground may
cause severe damage to the transmissions.
CupHolder
The cup holder is located toward the rear of the RH console to
the right of the operator's seat.
StorageTray
The storage tray is located at the rear of the RH console.
SeatAdjustmentLever(Not Seen)
The seat adjustment lever is located below the front/left of the
seat. The lever aIlows for adjustment of the fore to aft position
of the operator's seat. Refer to the Maintenance & Adjustments
section for instructions on adjusting the seat position.
FuelTankCap
The fuel tank cap is located near the middle of the LH console.
Turn the fill cap approximately 1/4turn and pull upward to
remove. The fuel cap is tethered to the tractor to prevent its loss.
Do not attempt to remove the cap from the tractor.
Push the cap downward on the fuel tank fill neck and turn
approximately 1/4turn clockwise to tighten Always re-install the
fuel cap tightly onto the fuel tank after removing.
ill_li WARNING! Never fill the fuel tank when the engine
is running. If the engine is hot from recently running,
allow to cool for several minutes before refueling.
Highly flammable gasoline could splash onto the
engine and cause a fire.
HourMeter/IndicatorPanel
The hour meter/indicator panel is
located on the LH console to the left of
the operator's seat.
HourMeter Features
The hour meter records the hours that
the tractor has been operated in the
digital display (tenths of an hour- right
most digit).
NOTE:The hour meter is activated whenever the ignition switch
is turned to the "ON" position. Keep a record of the actual hours
of operation to assure all maintenance procedures are completed
according to the instructions in this manual and the engine
manual.
When key is turned to the "ON" position, the battery indicator
light briefly illuminates and the battery voltage is briefly
displayed. The display then changes to the accumulated hours.
The Indicator Monitor will also remind the operator of
maintenance intervals for changing the engine oil. The LCD
will alternately flash, "CHG" ; "OIL" and the recorded hours for
five minutes after every 50 hours of recorded operation. The
maintenance interval lasts for two hours (from 50-52,100-102,
150-152, etc.). The LCD will flash as described for five minutes
every time the tractor's engine is started during this maintenance
interval. Follow the oil change intervals provided in the engine
manual.
SECTION4 -- CONTROLS AND FEATURES 13

Indicator Panel Features
Battery Indicator
Illuminates and the battery voltage is displayed briefly when the
ignition switch it turned to the "ON" position.
Illuminates to indicate the battery voltage has dropped below
11.5 (+0.5/-1.0) volts. The battery voltage is also displayed on
the hour meter. If this indicator and display come on during
operation, check the battery and charging system for possible
causes and/or contact your Cub Cadet dealer.
Oil Pressure Indicator (If Engine So Equipped)
This warning lamp indicates low engine oil pressure. If the
indicator comes on while the engine is running, stop the engine
immediately and check for possible causes. Do not run the
engine while this indicator is illuminated. Contact your Cub
Cadet dealer to have the tractor and engine inspected.
NOTE:The oil pressure indicator may illuminate when the
ignition switch is in the ON position, but should turn offwhen
the engine is started.
PTO Engaged Indicator
This indicator illuminates when the PTO switch is pulled upward
in the "ENGAGED" position and the ignition switch is turned
to the "START" position. Check this indicator if the engine will
not crank with the ignition switch in the "START" position. If
necessary, move the PTO switch to the "DISENGAGED" position.
Parking Brake Engaged Indicator
This indicator illuminates when the parking brake is in the
DISENGAGED position and the ignition switch is turned to the
"START" position. Check this indicator if the engine will not crank
with the ignition switch in the "START" position. If necessary,
move the parking brake to the ENGAGED position.
This indicator also illuminates when the ignition switch is turned
to the "START" position and the RH and/or LH drive control levers
are in a position other than the fully out in neutral position. Move
the control levers fully outward.
ThrottleControl (if Equipped)
The throttle control is located on the LH console to the
left of the operator's seat. When set in a given position, a
uniform engine speed will be maintained.
Push the throttle control handle forward to increase the
engine speed. The tractor is designed to operate with the
throttle control in the fast position (full throttle) when the
tractor is being driven and the mower deck is engaged.
Pull the throttle control handle rearward to decrease the
engine speed.
Throttle/ChokeControl (if Equipped)
ChokeControl(If Equipped)
The choke knob controls the position of the
engine choke. Pull the knob out to choke the
engine; push the knob in to open the choke.
The throttle/choke control is located on the LH console to _,m
the left of the operator's seat. When set in a given position,
a uniform engine speed will be maintained.
Push the throttle/choke control handle forward to
increase the engine speed. The tractor is designed
to operate with the throttle/choke control in the
fast position (full throttle) when the tractor is being
driven and the mower deck is engaged.
Pull the throttle/choke control handle rearward to slow
decrease the engine speed.
When starting the engine, push the control handle fully
forward into the "CHOKE" position.
After starting and warming the engine, move the control
handle rearward until you feel it move past the choke
detent.
ParkingBrake EngagementLever
The parking brake engagement lever is located on the
front/left of the seat box frame, and is used to engage
the parking brake.
Pull the lever fully upward and to the left; then lower
into the short "J" slot to engage the brake.
Pull the lever up out of the "J" slot and to the right; then
lower completely to disengage the parking brake.
NOTE: If the LH and RH drive control levers are not fully
opened out in the neutral position when engaging the
parking brake, the engine will stop. The parking brake
must be placed in the engaged position when starting
the tractor engine.
TransmissionOilExpansionReservoir
The transmission oil expansion reservoir is connected by hoses to
the RH and LH transmission assemblies, and is located beneath
the seat box. The function of the reservoir is to hold the natural
expansion of transmission oil that occurs as the transmission
warms up during operation. DO NOT FILL THE RESERVOIR.
I Under normal operating conditions, no oil should be added
to the reservoir. The COLD oil level should be no higher than
approximately 1/4"(the "Full Cold" mark) above the bottom of the
reservoir.
m
SLOW
NOTE: Prior to the initial operation of the tractor, the oil level in
the reservoir may be slightly higher than the maximum due to air
in the oil lines. Operation of the tractor will eventually purge the
air from the lines and the oil level will settle to the maximum.
SECTION 4-- CONTROLS AND FEATURES

Operation 5
GeneralSafety
RECEIVE INSTRUCTION -- Entirely read this operator's
manual. Learn to operate this machine SAFELY.Do not risk
INJURY or DEATH. Allow only those who have become
competent in its usage to operate this tractor.
Before starting the engine or beginning operation, be
familiar with the controls. The operator should be in the
operator's seat. The PTO switch must be in the disengaged
position, the parking brake engaged, and the RH and LH
drive control levers moved fully outward in the neutral
position.
Keep all shields in place. Keep away from moving parts.
NO RIDERS! Keep all people and pets a safe distance away.
Look behind and down to both sides of the tractor before
and while backing up.
DO NOT direct the mower discharge at people.
Avoid slopes where possible. Never operate on slopes
greater than 15°.Slopes with a greater incline present
dangerous operating conditions. Tractors can be rolled
over.
Before leaving the operator's seat: Shut off the PTO, move
the RH and LH drive control levers fully outward in the
neutral position, engage the parking brake, shut off the
engine and remove the ignition key. Wait for all movement
to stop before servicing or cleaning.
Operate the drive control levers smoothly and avoid
any sudden movements of the levers when starting and
stopping. Keep a firm grip on the control levers.
Be careful when operating near roadways. Stop the tractor
motion and wait for vehicles to pass before operating
along the road.
Do not operate the tractor with the mower deck removed.
Removal of the deck will change the balance of the tractor,
and could contribute to a tractor rollover.
Avoid operation on traction surfaces that are unstable; use
extreme caution if the surface is slippery.
Slow down before turning and come to a complete stop
before any zero turn maneuver.
Do not stop the tractor or park the tractor over
combustible materials such as dry grass, leaves, debris, etc.
Do not fill the fuel tank when the engine is running or
while the engine is hot. Allow the engine several minutes
to cool before refueling. Tighten the fuel cap securely.
BeforeOperatingYourTractor
Before you operate the tractor, study this manual carefully
to familiarize yourself with the operation of all the
instruments and controls. It has been prepared to help you
operate and maintain your tractor efficiently.
This engine is certified to operate only on clean, fresh,
unleaded regular gasoline. For best results, fill the fuel
tank with only clean, fresh, unleaded gasoline with a pump
sticker octane rating of 87 or higher.
Unleaded gasoline is recommended because it leaves
less combustion chamber deposits and reduces harmful
exhaust emissions. Leaded gasoline is not recommended
and must not be used where exhaust emissions are
regulated.
NOTE: Purchase gasoline in small quantities. Do not use
gasoline left over from the previous season, to minimize
gum deposits in the fuel system.
Gasohol (up to 10% ethyl alcohol, 90% unleaded gasoline
by volume) is an approved fuel. Other gasoline/alcohol
blends are not approved.
Methyl Tertiary Butyl Ether (MTBE) and unleaded gasoline
blends (up to a maximum of 15% MTBE by volume) are
approved fuels. Other gasoline/ether blends are not
approved.
Check the engine oil level.
Clean the air cleaner element if necessary.
Check the tire inflation pressures.
Adjust the seat for operator's maximum comfort, visibility
and for maintaining complete control of the tractor.
SafetyinterlockSystem
This tractor is equipped with a safety interlock system for the
protection of the operator. If the interlock system should ever
malfunction, do not operate the tractor. Contact your authorized
Cub Cadet Dealer.
The safety interlock system prevents the engine from
cranking or starting unless the RH and LH drive control
levers are moved fully outward in the neutral position, the
parking brake is engaged, and the PTO is disengaged.
To avoid sudden movement when disengaging the parking
brake, the safety interlock system will shut offthe engine
if the RH and/or LH drive control levers are moved to a
position other than the fully out in the neutral position
when the parking brake is engaged.
The safety interlock system will shut off the engine if the
operator leaves the seat before engaging the parking
brake.
15

The safety interlock system will shut offthe engine if the
operator leaves the seat with the PTO engaged, regardless
of whether the parking brake is engaged.
NOTE:The PTO switch must be moved to the "OFF"
position to restart the engine.
The safety interlock system will shut offthe PTO and the
mower blades will stop if both drive control levers are
moved into the reverse position. The PTO will re-engage
when one or both of the levers are moved back to the
neutral or forward position.
Starting the Engine
WARNING! This tractor is equipped with a safety
interlock system designed for the protection of the
operator. Do not operate the tractor if any part of
the interlock system is malfunctioning. Periodically
check the functions of the interlock system for
proper operation.
WARNING! For personal safety, the operator must
be sitting in the tractor seat when starting the
engine.
SeparateThrottleand Choke
1. Operator must be sitting in the tractor seat.
2. Engage the parking brake. Refer to Fig. 5-1.
LH Control Lever
Out in Neut__L_ral Parking Brake
Throttle/Choke
_Control or Throttle
Control
'Choke J /
/__J PTO Switch
(Disengaged) Position
RH Control Lever
Out in Neutral
)
in Down
_J
Figure 5-1
3. Make certain the PTO switch is in the disengaged (down)
position. Refer to Fig. 5-1.
4. Pull the choke control upward into the full choke position
NOTE: If the engine is warmed up, it may not be necessary
to place the throttle control in the choke position.
5. Move the throttle control to midway between its SLOW and
FAST positions.
6. Turn the ignition key clockwise to the "START" position
and release it as soon as the engine starts; however, do not
crank the engine continuously for more than 5 seconds at
a time. If the engine does not start within this time, turn
the key to "OFF" and wait at least 15 seconds to allow the
engine's starter motor to cool. Try again after waiting. If
after a few attempts the engine fails to start, do not keep
trying to start it with the choke closed as this will cause
flooding and make starting more difficult.
7. As the engine warms up, gradually push the choke control
into the off position. Do not use the choke to enrich the
fuel mixture, except as necessary to start the engine.
8. Allow the engine to run for a few minutes at mid throttle
before putting the engine under load.
9. Observe the hour meter /indicator panel. If the battery
indicator light or oil pressure light come on, immediately
stop the engine. Have the tractor inspected by your Cub
Cadet dealer.
Thr0ttle/Ch0ke ControlLeverSet-Up
1. Operator must be sitting in the tractor seat.
2. Engage the parking brake. Refer to Fig. 5-1.
3. Make certain the PTO switch is in the disengaged (down)
position. Refer to Fig. 5-1.
4. Insert the tractor key into the ignition switch module.
5. Turn the ignition key clockwise to the "START" position
and release it as soon as the engine starts; however, do not
crank the engine continuously for more than 5 seconds at
a time. If the engine does not start within this time, turn
the key to "OFF" and wait at least 15 seconds to allow the
engine's starter motor to cool. Try again after waiting. If
after a few attempts the engine fails to start, do not keep
trying to start it with the choke closed as this will cause
flooding and make starting more difficult.
6. As the engine warms up, gradually pull the throttle control
lever rearward past the choke detent position. Do not use
the choke position to enrich the fuel mixture, except as
necessary to start the engine.
7. Allow the engine to run for a few minutes at mid throttle
before putting the engine under load.
8. Observe the hour meter /indicator panel. If the battery
indicator light or oil pressure light come on, immediately
stop the engine. Have the tractor inspected by your Cub
Cadet dealer.
ColdWeatherStarting
When starting the engine at temperatures near or below
freezing, ensure the correct viscosity motor oil is used in the
engine and the battery is fully charged. Start the engine as
follows:
1. Be sure the battery is in good condition. A warm battery
has much more starting capacity than a cold battery.
2. Use fresh winter grade fuel. Winter grade gasoline has
higher volatility to improve starting. Do not use gasoline
left over from summer.
3. Follow the previous instruction for Starting the Engine.
SECTION S-- OPERATION

UsingJumperCablesToStart Engine
WARNING! Batteries contain sulfuric acid and
produce explosive gasses. Make certain the area is
well ventilated, wear gloves and eye protection, and
avoid sparks or flames near the battery.
If the battery charge is not sufficient to crank the engine,
recharge the battery. Ira battery charger is unavailable and
the tractor must be started, the aid of a booster battery will be
necessary. Connect the booster battery as follows:
I. Connect the end of one cable to the disabled tractor
battery's positive terminal; then connect the other end of
that cable to the booster battery's positive terminal.
2. Connect one end of the other cable to the booster
battery's negative terminal; then connect the other end of
that cable to the frame of the disabled tractor, as far from
the battery as possible.
3. Start the disabled tractor following the normal starting
instructions previously provided; then disconnect
the jumper cables in the exact reverse order of their
connection.
4. Have the tractor's electrical system checked and repaired
as soon as possible to eliminate the need for jump starting.
Stoppingthe Engine
I. Place the PTO switch in the "OFF" position.
2. Move the RH and LH drive control levers fully outward in
the neutral position.
3. Engage the parking brake.
4. Move the throttle control to the SLOW position and allow
the engine to idle for about one minute.
5. Turn the ignition key to the "OFF" position and remove the
key from the ignition switch.
NOTE: Always remove the key from the ignition switch to prevent
accidental starting or battery discharge if the equipment is left
unattended.
PracticeOperation(Initial Use)
Operating a zero-turn tractor is not like operating a conventional
type riding tractor. Although and because a zero turn tractor is
more maneuverable, getting used to operating the control levers
takes some practice.
We strongly recommend that you locate a reasonably large,
level and open "practice area" where there are no obstructions,
pedestrians, or animals. You should practice operating the
tractor for a minimum of 30 minutes.
Carefully move (or have moved) the tractor to the practice area.
When performing the practice session, the PTO should not be
engaged. While practicing, operate the tractor at approximately
1/2-3Athrottle and at less than full speed in both forward and
reverse.
Carefully practice maneuvering the tractor using the instructions
in the following section "Driving the Tractor." Practice until you
are confident that you can safely operate the tractor.
Drivingthe Tractor
i_ WARNING! Avoid sudden starts, excessive speed
and sudden stops.
1. Adjust the operator's seat to the most comfortable
position that allows you to operate the controls. See seat
adjustment in the Maintenance & Adjustments section.
2. Release the parking brake.
3. Move the RH and LH drive control levers inward in the
neutral position. Refer to Figure 5-2.
Control Lever Moved
inward and in Neutral
/
J
Figure 5-2
NOTE: If the control levers are not even in the neutral position,
refer to Maintenance & Adjustments for instructions to adjust the
levers so that they are even.
4. Move the throttle control lever forward to the full throttle
position (3300-3500 RPM).
NOTE:Although the tractor's engine is designed to run at
full throttle, when performing a practice session the tractor
must be operated at less than full throttle (approximately
2500-3000 RPM). This only applies to practice.
_IILI WARNING! Always maintain a firm grip on the
control levers. DO NOT release the control levers to
slow or stop the tractor; move levers to neutral
position using your hands.
5. To drive the tractor, firmly grasp the respective drive
control levers with your right and left hands and continue
with Driving the Tractor Forward on the following page.
SECTION S -- OPERATION 17

Drivingthe TractorForward
WARNING! Keep all movement of the drive control
levers slow and smooth. Abrupt movement of the
control levers can affect the stability of the tractor
and could cause the tractor to flip over, which may
result in serious injury or death to the operator.
1. Slowly and evenly move both drive control levers forward.
The tractor will start to move forward. See Fig. 5-3.
Driving Forward
Faster
1. To turn to the left, move the left drive control lever
rearward of the right lever. See Fig. 5-4.
Forward Left Turn
F---12
,,. j
Figure 5-4
2. To turn to the right, move the right drive control lever
rearward of the left lever. See Fig. 5-5.
f
2.
3.
Figure 5-3
As the control levers are pushed farther forward the speed
of the tractor will increase.
To slow the tractor move the controls lever rearward to
attain the desired speed, or move the levers to the neutral
position to stop the tractor.
WARNING! Always maintain your grasp on the
drive control levers. Do not release the levers to slow
the tractor or to return to neutral.
Turningthe TractorWhile Driving Forward
WARNING! When reversing the direction of travel,
we recommend performing gradual 'U' turns where
possible. Sharper turns increase the possibility of
turf defacement, and could affect control of the
tractor. ALWAYS slow the tractor before making
sharp turns.
To turn the tractor while driving forward, move the control
levers as necessary so that one lever is rearward of the other. The
tractor will turn in the direction of the rearward control lever.
Forward Right Turn
Figure 5-5
3. The greater the fore-to-aft distance between the two
levers, the sharper the tractor will turn.
4. To execute a "pivot turn," move the turn side drive control
lever to the neutral position, while moving the other
control lever forward.
NOTE: Making a "pivot turn" on grass will greatly increase
the potential for defacement of the turf.
SECTION 5-- OPERATION

Driving the Tractorin Reverse
WARNING! Always look behind and down on both
i_ sides of the tractor before backing up. Always look
behind while traveling in the reverse direction.
1. Slowly and evenly move both drive control levers rearward.
The tractor will start to move in the reverse direction. See
Fig. 5-6.
S---q .°°-°,
IoPosition _ ol _'_
Figure 5-6
2. As the control levers are pushed farther rearward the speed
of the tractor will increase.
3. To slow the tractor move the controls lever forward to
attain the desired speed, or move the levers to the neutral
position to stop the tractor.
TurningWhile DrivingRearward
To turn the tractor while driving rearward, move the control
levers as necessary so that one lever is forward of the other. The
tractor will turn in the direction of the forward control lever.
1. To turn to the left while traveling in reverse, move the left
drive control lever forward of the right lever. See Fig. 5-7.
Rearward Left Turn
j
Figure 5-7
2. To turn to the right while traveling in reverse, move the
right drive control lever forward of the left lever. See Fig.
5-8.
Rearward Right Turn
J
Figure 5-8
3. The greater the fore-to-aft distance between the two
levers, the sharper the tractor will turn.
4. To execute a "pivot turn," move the turn side drive control
lever to the neutral position, while moving the other
control lever rearward.
NOTE; Making a "pivot turn" on grass will greatly increase
the potential for defacement of the turf.
SECTION S -- OPERATION 19

Executinga Zer0Turn
WARNING! When executing a zero turn, the tractor
MUST BE STOPPED. Executing a zero turn while the
tractor is moving can significantly reduce your
control of the tractor and will cause severe turf
defacement to occur.
1.
2.
Stop the forward or reverse motion of the tractor by
moving the two drive control levers to neutral.
To turn clockwise, move the left control lever forward while
simultaneously moving the right control lever rearward.
See Fig. 5-9.
Clockwise Zero Turn
3.
J
Figure 5-9
To turn counterclockwise, move the right control lever
forward while simultaneously moving the left control lever
rearward. See Fig. 5-10.
Counterclockwise
Zero Turn
Stoppingthe Tractor
1. Move both drive control levers to the neutral position to
stop the motion of the tractor.
2. Push the PTO switch downward to the disengaged
position.
3. Use the deck lift handle to raise the deck to its highest
position.
4. If dismounting the tractor, move the drive control handles
fully outward in the neutral position, engage the parking
brake, move the throttle control lever to the fast position,
turn the ignition switch to "OFF'" and remove the key from
the switch.
WARNING! Do not leave the seat of the tractor
without disengaging the PTO, moving drive control
levers fully outward in the neutral position, and
engaging the parking brake. If leaving the tractor
unattended, turn the ignition key off and remove
the key.
DrivingOnSlopes
Refer to the slope gauge in the Safe Operation Section to help
determine slopes where you may not operate safely.
WARNING! Do not operate on inclines with a slope
in excess of 15 degrees (a rise of approximately 2-_/2
feet every 10 feet). The tractor could overturn and
cause serious injury.
1. Always drive across slopes, never up and down. Control
the speed and direction of the tractor using primarily the
control lever on the downhill side of the tractor, with the
uphill control lever remaining essentially in a fixed position.
2. Avoid turning downhill if possible. Start at the bottom of a
slope and work upward. Always slow down before turning.
3. Use extra care and go slowly when turning downhill.
OperatingThePT0
Operate the PTO clutch as follows:
I. Move the throttle control lever to approximately the mid
throttle position.
2. Pull the PTO switch upward to the "ENGAGED" position.
3. Advance the throttle lever to the operating speed (full
engine speed).
4. The operator must remain in the tractor seat at all times. If
the operator should leave the seat without turning off the
power take-off switch, the tractor's engine will shut off.
5. The PTO clutch cannot be operated when the tractor is
driving in the reverse direction. The PTO will disengage
when both drive control levers are moved to the reverse
position, and will re-engage when one (or both) control
lever(s) is moved to the neutral or forward position.
Figure S-lO
SECTION 5-- OPERATION