Wright Manufacturing ZTO series User manual

Wright Manufacturing Inc.
Instruction Manual
Wright Manufacturing
4600X Wedgewood Blvd
Frederick, Md 21703
Wright ZTO serial # 62995 and higher
WARNING: READ THIS MANUAL BEFORE USING
For your safety and for proper operation and maintenance read
carefully and keep readily available for future reference.
01/2013

Wright Manufacturing Inc.
Foreword
Welcome to the progressive group of mowing professionals who use Wright mowers. We are focused on
giving you advanced engineering and quality construction in each mower we build.
This manual explains the features and promotes safer use of the mower. Please read it in its entirety and
follow the instructions carefully so that you can have many years of safe and productive operation with your
Wright product. This manual may contain information pertaining to European models also. All information
referencing “CE” only applies to European units.
For service, remember that your Wright dealer knows your mower best and is interested in your
satisfaction. Your dealer can provide you with quality maintenance and other assistance that you may
need.
Please provide this manual to anyone who may operate the mower for them to study before operation.
Additionally, make the manual and service documents available to anyone to whom you may sell the
mower in the future. It is important that the next owner receive this information also.
As Wright Manufacturing, Inc. is constantly seeking ways to improve its products, the mower you have may
differ slightly from the information and specifications in this manual. Wright reserves the option to make
changes at any time without notice, in the process of continually improving our products.
Wright Manufacturing, Inc.
SAFETY ALERT
This is the safety alert symbol. It is used throughout this manual and on the mower’s safety labels
to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol
to avoid possible injury or death. Read these instructions carefully. It is essential that you read the
instructions and safety precautions before you attempt to work on or use this unit.
WARNING
This symbol with the “WARNING” indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
This symbol with the word “CAUTION” indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
WRIGHT MOWER USERS & OWNERS: READ THIS MANUAL BEFORE USING
PLEASE BE CAREFUL!
1998-2013 Wright Manufacturing, Inc. All rights reserved. This material may not be reproduced or copied, in whole or part, without
written permission from Wright Manufacturing, Inc. Grass Gobbler, Gobbler, Leaf Gobbler, Velke, Pro 1, X2, SuperPro, Stander, and
Sentar are trademarks of Wright Manufacturing, Inc.

1
TABLE OF CONTENTS
PRE-DELIVERY SERVICE OF MOWER BY DEALER ...............................................................................................................3
1 INTRODUCTION.......................................................................................................................................................................5
1.1 Technical Data ..................................................................................................................................................................5
1.2 General Safety Rules........................................................................................................................................................5
1.2.1 Do’s and Don’ts..............................................................................................................................................................6
1.2.2 Warnings........................................................................................................................................................................6
1.3 Important Information........................................................................................................................................................6
1.4 Owner/User Notice............................................................................................................................................................6
1.5 Safety for Operation..........................................................................................................................................................6
1.6 User Qualifications............................................................................................................................................................7
1.7 User Clothing.....................................................................................................................................................................7
1.8 Inspect the Mower Before Each Use.................................................................................................................................7
1.9 Regular Mower Safety.......................................................................................................................................................7
1.10 Prevent Fires ...................................................................................................................................................................8
1.11 Work Area Conditions and Inspection.............................................................................................................................8
1.12 Initial Operating Safety Guidelines..................................................................................................................................8
1.13 Safety for Maintenance ...................................................................................................................................................8
1.14 Operating in Forward Direction........................................................................................................................................9
1.15 Operating in Reverse ......................................................................................................................................................9
1.16 Zero-Radius Turn Operation............................................................................................................................................9
1.17 Operating on Slopes........................................................................................................................................................9
1.18 Fuel Safety....................................................................................................................................................................10
1.19 Hydraulic Safety............................................................................................................................................................11
1.20 Responsibly Handling Waste Product and Chemicals...................................................................................................11
1.21 Using a Spark Arrester..................................................................................................................................................11
1.22 Replacement Parts........................................................................................................................................................11
2 WARNING, SAFETY AND INSTRUCTIONAL DECALS........................................................................................................12
3 SPECIFICATIONS..................................................................................................................................................................13
4 MACHINE DESCRIPTION & OVERVIEW ..............................................................................................................................15
4.1 Model & Serial Location ..................................................................................................................................................16
4.2 Operator’s Area...............................................................................................................................................................16
4.3 Steering Control Levers...................................................................................................................................................17
4.4 Fuel System / Shut-Off Valve..........................................................................................................................................17
4.5 Seat ................................................................................................................................................................................17
4.6 Digital Hour Meter ...........................................................................................................................................................18
4.7 Deck Lift Lever ................................................................................................................................................................18
4.8 ROP’s..............................................................................................................................................................................18
4.9 Safety Switches...............................................................................................................................................................19
5 OPERATING INSTRUCTIONS...............................................................................................................................................19
5.1 Inspect Mower Before Each Use.....................................................................................................................................19
5.2 How to Start the Mower...................................................................................................................................................20
5.3 How to Drive the Mower..................................................................................................................................................20
5.4 How to Stop and Park the Mower....................................................................................................................................20
5.5 Driving the Mower Over a Curb.......................................................................................................................................21
5.5.1 Never Drive Straight Onto or Off a Curb....................................................................................................................21
5.6 Mowing on Varying Terrain .............................................................................................................................................21
5.7 How to Adjust Neutral......................................................................................................................................................21
5.8 How to Perform the Tracking Adjustment........................................................................................................................22
5.9 How to Test/Use the Blade Clutch/Brake Switch.............................................................................................................22
5.10 How to Test the Operator Presence Control (OPC) Switch...........................................................................................22
6 SERVICE AND ADJUSTMENTS..........................................................................................................................................23
6.1 Tire Maintenance and Pressure .....................................................................................................................................23
6.2 Height of Cut..................................................................................................................................................................23
6.2.1 Deck Lift Spring Adjustment.....................................................................................................................................23
6.2.2 Deck Adjustments ....................................................................................................................................................23
6.3 Belt Tension Adjustment ................................................................................................................................................24
6.3.1 Replacing the Drive Belt............................................................................................................................................24
6.3.2 Replacing the Cutter Deck Belt.................................................................................................................................24
6.4 Lubrication......................................................................................................................................................................24
6.5 How to Move the Mower if the Engine Won’t Start.........................................................................................................25
6.6 Hydraulic System ...........................................................................................................................................................25
6.7 Transaxle Fluid Change Procedure................................................................................................................................25
6.8 Transaxle Purging Procedure.........................................................................................................................................26

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6.9 Battery Service...............................................................................................................................................................26
6.10 Cutting Blades..............................................................................................................................................................27
6.11 Transporting / Tie Down Locations...............................................................................................................................27
6.12 Loading and Unloading ................................................................................................................................................27
6.13 ROPS...........................................................................................................................................................................27
6.14 Spindle and Drive Pulley Split Hub R&R......................................................................................................................29
6.15 Fuel Evaporation System.............................................................................................................................................29
6.16 Kawasaki / Briggs Maintenance Schedule ...................................................................................................................30
6.17 Cleaning the Mower .....................................................................................................................................................31
7 Electrical Schematic .............................................................................................................................................................32
8 Consumables/Maintenance Items........................................................................................................................................33
9 Decals.....................................................................................................................................................................................34
10 MAINTENANCE INTERVAL CHART ...................................................................................................................................35
MAINTENANCE RECORD ........................................................................................................................................................36
WRIGHT MFG POWER EQUIPMENT LIMITED WARRANTY..................................................................................................37
FEDERAL & CALIFORNIA EMISION CONTROL WARRANTY STATEMENT ........................................................................38
CUT QUALITY & MOWING TIPS..............................................................................................................................................40

3
PRE-DELIVERY SERVICE OF MOWER BY DEALER
Before proceeding with the Pre-Delivery Service of your mower, please
read the safety instructions manual in its entirety. Only your authorized
Wright dealer should perform the Pre-Delivery Service of the mower .
The Wright ZTO is shipped completely assembled and has been adjusted and tested at the factory. However,
due to the jostling of the shipping process and the delivery time lapse, the following items need to be repeated
again before starting the mower. After you have uncrated the mower, raise and lock the ROP’s to the upright
position. Follow these procedures in the order indicated:
Inspect the mower for any damage, unusual conditions or missing parts.
Inspect the mower for all of its decals, especially the warning decals. There should be one blade warning
decal on each side of the deck, the “shield missing” decal under the blade belt cover, and the dash decal.
Check service, parts and recall bulletins to ensure unit does not need any updates.
Check (and fill if necessary) engine oil level according to the engine manufacturer’s recommendation.
Check hydraulic expansion tanks oil levels. Use motor oil: 20W-50 (see Hydro Check/Fill section of this
manual).
Check rear tire pressure – 18 – 22 psi. is recommended. Use the higher pressures for heavier operators.
Front Casters are equipped with non-pneumatic tires and do not require any air. Lowering tire pressure will
affect deck pitch. Always check pitch any time tire pressure is set below recommended pressures.
Lubricate all appropriate moving parts (see the Lubrication section of this manual).
Check the battery to see that the cables are tight and connected properly. The battery is 12 volts and is a
maintenance-free battery. Only charge the battery if it will not start the mower properly.
Check the “Quick Cut Height” deck adjustment system for proper operation.
Add regular unleaded gasoline to fuel tank. (use a minimum of 87 octane gasoline) (You may use gasoline
containing up to 10% ethanol and gasoline containing up to 5% of methanol.)
Check brake safety interlock.
Put the control handles in the”Drive” (handles in) position, this releases the internal parking brake. Try
starting the engine. (Engine should not start. If engine starts, service the parking brake locking system)
Apply parking brake by moving the control handles to the “Park/Brake” (Handles out) position.
Start the engine according to the engine manufacturer’s recommendation. Let the engine run at low - mid
RPM for several minutes to ensure the engine oil reaches all of the engine parts and gets the hydraulic fluid
circulating through the transaxles, etc.
Release the parking brake by moving the control handles to the drive position. Next, move the
hand control levers, one at a time, to make the wheels move in forward and backward rotation.
Before testing the blade clutch/brake operation, make sure the area is clear and there is nothing vulnerable
to possible thrown objects from under the mower. No one should be near the mower deck or in its line of
discharge at this or at any time. The discharge chute deflector should be in the down position.
Move the engine throttle control to ¾ RPM speed setting.
Move the control handles to the “Inward” operational position.
WARNING

4
Turn on the blade clutch switch. Run blades for approximately one minute. Next, engage and disengage
the blades a few times about 10 seconds apart. If the blades do not start and stop in a few seconds each
time, service the blade brake system.
With the blades on, disengage the OPC switch to test the Operator Presence Control switch (OPC). A
time delay has been added to the OPC system. The engine should die and the blades should stop with-in
4-7 seconds after leaving the seated position. If not, service the OPC system.
Disengage the blades.
Drive the mower around on a level parking lot. Check that the mower drives in a straight line when both
hand controls are at the full speed position. (If not, refer to How to Perform The Tracking Adjustment
section of this manual) (The control handles may not line up perfectly)
As you drive the mower, listen for any unusual noises and test for irregular operation and adjust or
service as necessary.
Go over the safety information and operating procedures in this manual with the customer. Instruct each
customer in proper operation and observe the customer during their initial operation on a level parking lot.
Repeat until the customer is familiar and comfortable with the basic operation and use of the mower.
•Dealer:
Register the mower online within 14 days from the date of retail purchase.
(If unable to use the online registration process, contact your Distributor to
register for you)
Registering the product indicates you have successfully completed the pre-delivery
service checklist.
The limited warranty is considered invalid unless the unit is registered and the above
steps are taken.
Remember, the purchaser is both your customer and our customer and his/her
satisfaction is very important. Thank you for supporting our products.
The mower is now ready for delivery to your customer

5
1 Introduction
This mower is built to the highest standards in the industry. However, carelessness or operator error may
result in serious bodily injury or death. Accident and hazard prevention are dependent upon the awareness,
concern, wisdom, and proper training of the personnel involved in the operation, transport, maintenance, and
storage of the equipment. Make sure every operator is properly trained and thoroughly familiar with all of the
information in this manual before operating the equipment.
This machine is constructed only for mowing grass on lawns without obstacles such as stones, tree stumps
etc. The machine can also be used for other tasks when equipped with special accessory attachments;
Grass Gobbler, Rear Bagging System and JRCO attachments. All other types of uses are incorrect. The
manufacture’s directions concerning operation, maintenance, and repairs must be carefully followed.
Lawn mowers and all power equipment can be potentially dangerous if used improperly. Safety requires
good judgment, careful use in accordance with these instructions and common sense.
The machine must only be operated, maintained and repaired by persons familiar with the machine’s special
characteristics and who are also knowledgeable about the safety instructions. Use only approved repair
parts to maintain.
Accident prevention regulations, other general safety regulations, occupational safety rules, and traffic
regulations must be followed without fail.
Unauthorized modifications to the design of the machine will absolve the manufacturer from liability for any
resulting personal injury or property damage.
This machine is not intended for use in extreme environments, as a tow vehicle, on steep slopes or in an
enclosed area without good ventilation.
1.1 Technical Data
Weight of overall machine 48” (122 cm) = 1015 lbs (460 kg)
52” (132 cm) = 1025 lbs (465 kg)
61” (155 cm) = 1060 lbs (481 kg)
Machine dimensions 48” (122 cm) = 78” (198 cm) L x 49” *59" (124 cm *150 cm) W
*Chute Deflector Down 52” (132 cm) = 78” (198 cm) L x 53” *63” (135 cm *160 cm) W
61” (155 cm) = 78” (198 cm) L x 62” *72” (157 cm *183 cm) W
Speeds Fwd. 10.5 mph (17 km h), Rev. 4 mph (6 km h)
Power supply 12V DC
1.2 General Safety Rules
The Wright ZTO is designed with your safety in mind. It has the following safety systems with which you
should become familiar:
•The warning decals on the mower including the parking brake and general warning decal
•DO NOT disable any of the safety features
•The blade switch must be “off” before starting the engine
•You must be seated with the control levers in the “Park/Brake” position to start engine. Park/ Brake refers
to the control handles in the outward position.
•You must be seated to engage the blades
•If you lift off the seat while the blades are running the engine will stop and the blades will brake in seconds
•Spring loaded chute deflector helps reduce trajectory of thrown objects
•Belt/pulley covers on cutter deck
•Low center-of-gravity (CG) to improve stability on hills
•Rollover Protection System (ROP’s) must be pinned securely in upright position and used with seat belt.

6
WARNING
Do's Don'ts
Read the operators manual before attempting to operate this machine Don't disable safety switches
Use all PPE's, eye protection, ear protection and safety shoes Don't operate when lightening is seen
Ensure all safety switches are operational Don't lift with a forklift
Keep all shields andcovers in place Don’t change RPM's outside of operating limits
Clean flammable material from machine Don’t removethe ROP's
Inspect fuel system and fuel lines for cracks, leaks and dryrott Don’t tow or push
Inspect area to be mowed for hazards Don’t operate on slopes when wet
Only operate in daylight Don’t leave a running machine unattended
Mow safe distances away from drop-offs and other hazards Don’t change the engines governor setting or overspeed the engine
Maintain a safe distance from people and pets Don’t operate the machine wearing sandals, sneakers or any loose fitting clothes
Follow daily and weekly maintenance checklists Don’t back up without being aware of what is behind themachine
Remainseated while operating Don’t suddenly push in forward direction while machine is in a rearwardmotion
Observe traffic laws while driving machine from one location to another Don’t operate a poorly maintain machine
Thoroughly inspect the machine after striking a foreign object Don’t allow persons to operate this machine without reading the operator manuals
Turn off blades when not mowing Don’t put hands or feet under any part of the machine while it is running
Slow down before turning Don’t ever carry passengers
Stop engine before removing Grass Gobbler or cleaning under deck Don’t discharge material towards anyone
Use caution when loading or unloading the machine onto a truck or trailer Don’t operate the machine if you are sick, fatigued or under the influence of alcohol or drugs
1.2.1 Do’s and Don’ts
1.2.2 Warnings!
These warnings are provided to improve safety and should be carefully read before using or maintaining the
machine.
1.3 Important Information
It is vital that these instructions are available to machine users. It is also important to retain with the machine
if the machine is sold or transferred to another user.
1.4 Owner/User Notice
The owner’s/user’s obligation is to instruct themselves and all potential users in the safe operation of this
equipment and be sure they read and follow the instructions in this safety manual and other material
provided by Wright Manufacturing, Inc. before using or allowing others to operate the equipment. Do not
operate this unit unless you carefully read, understand and follow the assembly, installation, and safety
instructions contained in this manual and the warning decals provided on the unit. Do not allow other
persons to use this unit unless you make sure they carefully read, understand and follow these instructions.
Never allow children to operate or play on the unit.
1.5 Safety for Operation
The ZTO should only be used by fully trained operators to prevent the risk of injury to themselves or other
personnel. The owner’s/user’s obligation is to instruct themselves and all potential users in the safe
WARNING
This symbol with the word “WARNING”
indicates a potentially hazardous situation
which, if not avoided, could result in death
or serious injury.
CAUTION
This symbol with the word “CAUTION”
indicates a potentially hazardous situation
which, if not avoided, could result in minor
or moderate injury.

7
WARNING
WARNING
WARNING
WARNING
operation of this equipment and be sure they read and follow the instructions in this safety manual and other
material provided by Wright Manufacturing, Inc. before using or allowing others to operate the equipment.
DO NOT operate this unit unless you carefully read, understand and follow the operation and safety
instructions contained in this manual and the warning decals provided on the unit. DO NOT allow other
persons to use this unit unless you make sure they carefully read, understand and follow these instructions.
Never allow children to operate or play on the unit.
1.6 User Qualifications
This product is designed for use by physically fit, experienced, professional commercial mower operators
who have a minimum of 160 hours of experience operating twelve horsepower and greater industrial
mowers. Operators must be 18 years or older and weigh at least 120 pounds and no more than 350
pounds. They must have read and understood this manual. DO NOT allow children to operate the mower.
Never allow passengers on the mower. DO NOT allow adults to operate the mower without proper
instruction as mentioned above.
1.7 User Clothing
DO NOT operate the mower while wearing sandals, tennis shoes, sneakers, or shorts. Always wear long
non-baggy pants. Wear high-top leather steel-toed work boots with thick, textured tread, soft-rubber soled at
all times. Hard or smooth soled shoes are too slippery for a good footing on mower platform. NEVER wear
loose-fitting clothing or jacket pockets that can get caught on the handlebars or control levers of any mower
you drive. Wearing safety glasses, ear protection and safety shoes is advisable and required by some local
ordinances and insurance regulations.
1.8 Inspect the Mower Before Each Use
DO NOT use the mower if any parts are not maintained in good operating condition. Examine the moving
parts prior to each use. Look for excessive wear, bald or worn tires, cracks in parts, loose or missing bolts,
cotter pins, linchpins or “hair” pins or cable yoke pins, control system ball joints and replace before operating
the mower. Make sure all safety equipment provided with the mower is in good operating order, including all
the warning decals and the required operator-presence device which stops the engine and blades when the
seat-operated Operator Presence Control (OPC) switch is released. (To test the OPC, follow instructions in
the Operating Instructions section of this manual.) Be sure that all parts of the hand-operated hydraulic
control system are tight and secure. This is to reduce the possibility that the mower could have a loss of
control during operation and compromise operator safety.
1.9 Regular Mower Safety
Keep your Wright mower in good operating condition, and keep safety devices and shields in place and in
working condition. Replace worn tire(s) with less than 3/32” of any tread groove left. Use tires with the
tread pattern specified by Wright Mfg., Inc. only. DO NOT change the engine governor settings or over-rev
the engine contrary to engine manufacturer specifications. Failure to comply can compromise operator
safety, shorten equipment life and void your manufacturer’s warranty. Keep all nuts, bolts, and screws tight
to be sure the equipment is in safe working condition. Check the blade mounting bolts for proper tightness
every eight (8) hours of operation. Check the blades for excessive wear and sharpness every four to eight
(4-8) hours of operation. Sharpen dull blades. Replace blades when they become excessively worn. The
mower should not be used after the blades or other part of the mower strikes a foreign object, until
conducting a thorough inspection and any damage is repaired. Make sure the chute deflector is always in
place and operating properly. Replace if the deflector becomes worn or ceases to properly deflect the
grass in a safe manner. See the instructions in the Recommended Maintenance section of this manual for
other items of required maintenance.

8
WARNING
WARNING
WARNING
1.10 Prevent Fires
Machine fires and structural fires can occur if a machine is stored before allowing it to cool, if debris is not
removed from critical areas of the machine, or if the machine is stored near combustible materials.
•Remove grass and debris completely from engine compartment and muffler area, and from on top of the
mower deck, before and after operating machine, especially after mowing or mulching in dry conditions.
•Always shut off fuel when storing or transporting.
•Do not store Stander near an open flame or source of ignition, such as a water heater or furnace.
•Check fuel lines, tank, cap and fittings frequently for cracks or leaks. Replace immediately if necessary.
1.11 Work Area Conditions and Inspection
Prior to operating the unit, carefully inspect all lawn/ground areas where you plan to use the mower for
hidden, hard-to-see objects or uneven ground that may be hidden in the grass. Clear the work area of
moveable objects such as wires, rocks, glass, toys, etc. that might be picked up by the mower and
dangerously thrown. Remove, if possible, or mark the location of all immovable objects or irregular areas and
be sure not to hit them with any part of the mower, its deck or the blades. Obstacles such as holes, abrupt
changes in ground contour, tree trunks, stumps or roots, pipes protruding from the ground, paving edges, etc.
in the path of operation can abruptly turn or stop the mower. This could possibly throw you into the control
levers or even off the mower, causing serious injury or death. The faster you are moving the more potential
there is for injury. Mow only in daylight or in good artificial light. Keep away from drop-offs, the edges of
ponds, streams, pools, etc. especially at the bottom of slopes. DO NOT mow when children or others are
nearby. When the Wright mower is in use, never direct the grass discharge toward bystanders, traffic, cars
or buildings nor allow anyone within 50 feet of the machine while in operation. Thrown objects can pass
through glass windows and some walls of buildings. There is extreme risk of danger from thrown objects or
being cut by the blades of the mower. Never operate the mower in an enclosed area without good, approved
ventilation. Exhaust fumes are dangerous.
1.12 Initial Operating Safety Guidelines
•Read and understand the warnings on the general warning decal on the mower.
•Regularly check and test the safety devices for correct function.
•Recommended PPE is safety shoes, safety glasses and ear protection.
•Use seat belts with the roll bar in the raised and locked position.
•Keep both feet on the foot platform at all times.
•Know the controls and how to stop quickly.
•Before attempting to start the engine, follow all starting instructions below and in the engine operator’s
manual.
•Look behind before backing up.
•Before leaving the operator’s seat, even momentarily, turn off the blade clutch engagement switch and
move the control handles to the outward “Park/Brake position. Keep others from coming near the mower.
Get back on the mower as soon as possible.
•When leaving the Wright mower unattended, turn off the blade clutch engagement switch, move the control
handles to the Park/Brake position, stop the engine and remove the key. Never leave the machine
unattended on a slope in case someone moves the control handles to the inward (Brake Off) position. This
could create a rollover hazard.
•When transporting, driving onto transport vehicles, into buildings, across parking lots or otherwise not
mowing grass, raise deck and lock in the transport position and turn off the blade clutch engagement
switch to reduce risk of thrown objects and rotating blade hazard. After coming to a stop, move the
controls to the Park/Brake position, stop the engine and remove the key.
•Before performing any maintenance or repair service, disengage power to blades, stop the engine, remove
ignition key and spark plug wire from spark plug(s).

9
WARNING
WARNING
WARNING
WARNING
•All operators of this mower should exercise caution when driving this mower at high speeds. Sudden
acceleration or deceleration may cause serious injury.
•DO NOT allow inexperienced persons to operate the mower until they have read and understood these
safety instructions. Operate the mower at slower speeds while becoming familiar with it.
•The grass discharge chute deflector must be installed at all times and in the down position except that it
may be raised when cleaning out the deck, or a grass catcher is installed or a mulch kit and block-off plate
is properly installed.
•If the mower discharges grass clogs, turn off the blade clutch switch, move the control levers to the
Park/Brake position, stop the engine and remove the key before removing obstruction(s).
•Keep all shields and covers in place, namely, all blade and belt covers, engine shields, and grass
discharge chute deflector.
•Keep hands, feet and clothing away from rotating parts, especially the rear wheels, blades, engine
flywheel, belts and pulleys.
•DO NOT touch engine, muffler or hydraulic transaxle system while engine is running or soon after it is
stopped. These areas can be so hot as to cause severe burns.
•Clean grass, leaves and lubricant spills from surfaces after use to prevent fire hazard.
•Be alert for traffic when crossing roads or operating near roadways.
•Before climbing curbs, crossing gravel drives, sidewalks or roads, turn off the blades and wait for them to
stop, and then place deck into transport position.
•Inspect/Deploy/Packout ROP’s prior to operation. Additional operational safety guidelines with regards to
the ROP’s may also be found in this manual.
1.13 Safety for Maintenance
•Repairs carried out by untrained or unauthorized personnel may result in personal injury or serious
malfunction of the ZTO.
•If Guarding is removed for inspection and component replacement, ensure the control levers are in the
Park/Brake position and the key is removed prior to inspecting or making repairs and that the guarding is
replaced before operation.
1.14 Operation in Forward Direction
Operate the mower slowly until you become familiar with how the mower operates. The control system is not
equipped with a return to neutral system for forward motion. Do not operate the mower faster than
conditions allow. For example, hills, wet or bumpy ground, dim light or high grass are all conditions requiring
slower speeds. Never operate the mower at the highest speed unless you are on level, wide, open areas of
clearly visible ground or transporting on paved areas. Speeding with any mower is dangerous, and so is
traveling faster than conditions should permit on this mower. Sudden stops from excessive speed or falling
off the mower may cause serious injury or death.
1.15 Operation in Reverse
Keep both feet on the foot platform at all times. Look behind you before backing to prevent injuring yourself
or anyone behind you. Operate the mower very slowly, inching it backward until you become familiar with
how the mower operates. Always operate slowly if in an awkward location or position. The control system is
equipped with a return to neutral from reverse spring. This is to aid the operator in returning the mower to
neutral after a reverse maneuver.
1.16 Zero-Radius Turn Operation
During zero-radius turns (when one mower wheel rotates backwards while the other rotates forward) drive
extra slowly to reduce the possibility of losing traction, or control, or becoming dizzy. This will help prevent
you from being thrown off the mower or into the control levers. Be aware that if you do a turn on a slope you
may go through all of the orientations to a slope mentioned below and must handle the mower accordingly.

10
WARNING
WARNING
1.17 Operation on Slopes
DO NOT operate on steep slopes. DO NOT operate the mower on slopes steeper than you can feel secure
about the traction of the tires and the stability of the mower. DO NOT operate the mower on slopes at all
when the grass is wet. DO NOT mow near drop-offs or near water. Keep the roll bar in the raised and locked
position and use seat belt. There is a danger of suddenly sliding sideways or down the hill. When operating
on a slope, travel across the grade whenever possible, not in an up or down pattern. Reduce speed and
exercise extreme caution on slopes and in sharp turns to prevent tipping or loss of control. Be especially
cautious when changing direction on slopes. The operator is responsible for safe operation on slopes.
When pointing up a slope, your mower has the most weight on the drive wheels and therefore the most
traction at the tires. However, this is the angle that it has the most tendency to tip back (“pop a wheelie.”)
This is the preferred angle for mowing small areas of steeper slopes.
Recommendations for this angle:
•Lean as far forward in the seat as possible to shift your weight to the front of the mower.
•Accelerate gently. DO NOT accelerate quickly to avoid “popping a wheelie”.
•If backing down the hill, DO NOT stop suddenly but slow down gradually.
When pointing down a slope, your mower has the least weight on the rear drive wheels and therefore the
least traction at the tires. This is the angle that the mower has the most tendency to slide. However, this is
the angle that it has the least tendency to tip back. Avoid this angle, as it has the least advantage for your
mower.
Recommendations for this angle:
•Sit back as far as you can on the seat. This adds more of your body weight to the drive wheels for more
traction.
•DO NOT change speed suddenly to minimize the tendency of going into a slide. Accelerate and decelerate
gently. If you ever go into an uncontrolled slide while pointing down a slope, control the mower gently and
stay off slopes that tend to make the wheels slide.
When crossing a slope sideways, your mower has the average amount of weight on the drive wheels
versus the front wheels, similar to level ground. However, this angle leaves the least weight on the higher
side drive wheel, tending to make it slip. This is the preferred angle for mowing large areas of gentle slopes.
Recommendations for this angle:
•Sit back, as far as you can on the seat and angle yourself to the higher side. This adds weight to the rear
drive wheels and will allow you to mow more quickly across the slope without sliding. Remember it is
recommended that operators weigh at least 120 pounds and not more than 350 pounds. These are general
guidelines only. The mower function and comfort will vary depending on mowing environment, operator
driving style and preference.
•To reduce the chances of “popping-a-wheelie”, do not accelerate quickly.
Note: Excessively worn tire tread is dangerous. Replace tire(s) with less than 3/32” of any tread groove left.
Use tires with the tread pattern recommended by Wright Mfg., Inc. only. Keep the tire pressure in the drive
tires between 18 and 22 psi. Higher pressures will cause the tires to have less traction which may prevent
safe operation. The front caster tires do not require air.
1.18 Fuel Safety
Handle gasoline with care – it is highly flammable. Do not smoke
while handling gasoline. Use an approved gasoline container.
Never remove the fuel cap or add gasoline to a running or hot engine
or an engine that has not been allowed to cool for several minutes
after running. Never fill the tank indoors and always clean up spilled
gas. NEVER store the equipment with gasoline in the tank inside a
building where fumes may reach an open flame or spark. Allow the
engine to cool before storing in any enclosure.

11
WARN
ING
WARNING
1.19 Hydraulic Safety
The hydraulic system on the Wright ZTO is not equipped with high pressure hydraulic hoses or any external
high pressure hydraulic exposure. However, always use caution when servicing any hydraulic systems.
1.20 Responsibly Handling Waste Product and Chemicals
Waste products, such as used oil, fuel, coolant, brake fluid and batteries, can harm the environment and
people:
•Do Not use beverage containers for waste fluids – someone may drink from them.
•See your local Recycling Center or authorized dealer to learn how to recycle or get rid of waste products.
1.21 Using a Spark Arrester
The engine in this machine is not equipped with a spark arrester muffler. It is in violation of California
Public Resources Code Section 4442 to use or operate the engine on or near any forest-covered, brush-
covered, or grass covered land unless the exhaust system is equipped with a spark arrester meeting any
applicable local or state laws. Other states or federal area may have similar laws.
1.22 Replacement Parts
Use of parts other than specified parts supplied by Wright Manufacturing, Inc. may compromise the safe use
of the mower, are not recommended and their use could void the warranty. Always check with your Dealer
or the Wright Mfg website for the latest Illustrated Parts List for your equipment.
Wright is fully concerned with your safety. Please read the above again and again until you fully
understand the methods to promote the safest operation possible.
REMEMBER – YOUR MOWER CAN BE ONLY AS SAFE AS THE OPERATOR.
FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT IN
SERIOUS INJURY OR DEATH.
WARNING
CALIFORNIA
Proposition 65 Warning
The engine exhaust from this product
contains chemicals known to the state of
California to cause cancer, birth defects
or other reproductive harm.

12
76490050 DECAL, FIRE
HAZARD WARNING
76490088 DECAL,
Warning Label - Fuel 76490089 DECAL,
Danger Label - Fuel
2 Warning, Safety and Instructional Decals
•Specific safety warning decals are located on the equipment near immediate areas of potential hazards.
•Keep all safety signs legible. Remove all grease, dirt and debris from safety signs and instructional
decals.
•Replace worn, damaged or missing safety decals.
•If an attachment or accessory has been installed, make sure current safety decals are visible.
1 - Blade engage/disengage switch
2 - Fast / Full throttle
3 - Slow / Idle throttle
4 - Choke
5 – Apply Parking Brake to Start
6 - Ignition switch, Start
7 – Ignition switch, Run
8 - Ignition, off
Dash Panel, 76490065
1
3
4
5
7
6
2
General Safety, 76490115
8
Shield Missing 76490001
Blade Hazard 76460001
Parking Brake
76490114

13
Warning, shield missing, DO NOT
operate with shields missing. Keep
shields and covers in place.
Warning, rotating blades, Keep
hands, feet and clothing away from
rotating blades. Use safety
glasses to avoid thrown material.
To inspect blades or clean under
side of cutter deck, apply parking
brake and remove ignition key.
Warning, crush hazard. Be aware
of your surroundings at all times.
Always stop the machine if
someone enters the area.
Warning, denotes potential hazardous situation which, if not
avoided, could result in minor to serious injury or death
Caution, rotating pulleys and belts. Keep shields and
covers in place while machine is in operation. Keep hands
feet and clothing away from rotating pulleys and belts.
Caution, Battery hazard. Avoid skin contact with battery
acid. Do not allow open flame near the battery when
charging. Always where eye protection when checking the
battery.
Caution, hot surface! Avoid skin contact with hot surface
Warning, potential fire, clean flammable material away from
machine. Clean engine fins and exhaust heat shield of any
debris build up. Inspect fuel lines for wear and replace when
worn. Always clean up spilled fuel and oil.
Caution, hydraulic fluid under pressure, potential skin
puncture. Do not check for leaks with mower running.
Caution, denotes potential hazardous impeller condition
when using the rear bagging system, could result in cutting
of fingers or hand while machine is in operation. Keep all
shields and covers in place.
Warning, thrown objects. Never operate the mower deck
with the chute deflector damaged, altered, removed or in the
raised position, except when using a Grass Gobbler, rear
collection system or mulching system is being used.
Warning, rollover. DO NOT operate near drop-offs, retaining
walls, drainage ditches, water and other types of hazards to
avoid a wheel dropping over the edge or to avoid the ground
from breaking away.
Warning, reduce speed and exercise extreme caution on
slopes and on sharp turns to prevent tipping or loss of
control
3 Specifications
Engine
•See your Engine’s Owner’s Manual
•RPM: Full Speed:
•Kawasaki: 3600 +/- 50 RPM (no load) / Idle: 1550 RPM
•Briggs and Stratton: 3600 +/- 50 RPM (no load) / Idle: 1550 RPM
Electrical System
•Charging System: Internal Stator Coil
•Battery Type: Maintenance Free
•Battery Voltage: 12 volts
•Fuses: Two, 20 amp blade type

14
Width (Deflector Down) 49" (59") / 124 cm (150 cm)
Length 78" (198 cm)
Weight 1015 lbs (460 kg)
Width (Deflector Down) 53" (63") / 135 cm (160 cm)
Length 78" (198 cm)
Weight 1025 lbs (465 kg)
Width (Deflector Down) 62" (72") / 157 cm (183 cm)
Length 78" (198 cm)
Weight 1060 lbs (481 kg)
48" (122 cm) ZTO
ZTO SPECS
52" (132 cm) ZTO
61" (155 cm) ZTO
Application Thread
Locker Torque Range
Clutch to engine shaft Loctite 2760 50-55 ft lbs / 68-75 Nm
Wheel lug nuts N/A 80-90 ft lbs / 108-122 Nm
Split hubs (Spindle & Drive) (Gr 8) N/A 13-17 ft lbs / 18-23 Nm
Blade Bolts (lubricate with anti-seize) N/A 70-80 ft lbs / 95-108 Nm
Engine mounting bolts Loctite 2760 33-35 ft lbs / 45-47 Nm
ROP's Mounting Bolts N/A 80-90 ft lbs / 108-122 Nm
ZTO Torque Specifications
Application
Thread
Locker Torque Range (In-lbs)
Oil Filter N/A 110-130 In lbs / 12.4-14.7 Nm
Oil level port plug N/A 180-240 In lbs / 20.3-27.1 Nm
Cooling Fan Nut N/A 540-660 In lbs / 61.0-74.5 Nm
ZTO Transaxle Torque Specifications
Fuel System
•Capacity: 14.5 Gal. (54.9 L)
•Type of Fuel: Unleaded regular gasoline, minimum 85 octane. Do not use gasoline containing
more than 10% ethanol. Do not mix oil with gasoline.
•Fuel Filter: In line
•Fuel Shut Off: On / Off, In line
•Fuel gauge in left side fuel tank
Safety Interlock System
•PTO switch must be disengaged, control handles in the OUT position to start the engine.
•Operator MUST be in the seat to engage the PTO, brake is off when the control levers are moved
to the IN position or the engine will stop.
Drive System
•Two Hydro Gear Hydrostatic Transaxles ZT3400.
Hydro Oil System
•Hydro Oil Type: Motor oil: 20W-50
•Hydro Filter: Spin-on, WMI P/N, 39410007
•Total Capacity: 2.4 qts / 2.9 liter, does not include expansion tank.

15
4 Machine Description & Overview
The Wright ZTO is meant to solely cut, bag or mulch grass. The use for any other purpose is not
recommended. Always keep the Roll Over Protection in the full up position and always wear your seatbelt.
1 – Flexible Chute Deflector 2 – Rear Drive Tire 3 – Right Fuel Tank w/ Cap
4 – Battery Box 5 - Roll Bar 6 – Seat w/ Seat Belt
7 – Left Fuel Tank w/ Cap 8 – Motion control levers 9 – Foot Platform
10 – Front Caster Tires 11 – Anti Scalp Roller 12 – Deck Lift Lever
13 – Cutter Deck Cover 14 – Aero-Core Cutter Deck
1
2
1
1
1
0
1
1
11
7
3
1
0
4
9
8
6
5
12
13
14

16
4.1 Model and Serial Location
1. The plate is affixed on the right side in the engine compartment.
2. Stated on the plate will be the Model, date of assembly and
serial number, these will be needed when ordering parts.
4.2 Operator’s Area
1 – Seat, Armrests and Seat Belt 2 – Fuel Cap 3 – Left Fuel Tank w/ Gauge & Cup-Holder
4 – Motion Control Handles 5 – Foot Platform 6 – Deck Lift Lever and Height Adj.
7 – Control Panel 8 – Right Fuel Tank w/ Control Panel
1
3
2
2
4 4
5
6
7 8

17
4.3 Steering Control Levers
The ZTO’s speed and direction are controlled by using two steering control handles. The handles can be
moved forward and backward about a neutral position. Moving the control handle equal distance forward or
backward the machine moves in a straight line.
4.4 Fuel System / Shut Off Valve
The fuel shut off valve is located at the left rear behind the seat compartment. The fuel valve should be in the
“Off” position at all times when the mower is not in use. Do not fill fuel tanks completely. Fill until level is 1
inch below the bottom of the fill neck. This will allow for the gas to expand and prevent fuel from soaking the
vent valve. A fuel gauge is located on the left tank. The fuel system is equipped with two check valves, they
will improve equal traction and allow the tanks to drain at the same time.
4.5 Seat
The seat is equipped with a seat belt, Flip-up armrests, forward and
rearward adjustment.
•Forward and Rearward Adjustment – Located under the right
front side of the seat, pull the lever to the side, slide seat
forward or backward.
Inward Drive
Position
Right Turn
Left Turn
On
Off

18
4.6 Digital Hour Meter
The ZTO is equipped with a digital hour meter. Refer to operating/reset instructions below.
The programming specified is:
Default display: Hours
Press once (TMR1): Timer 1, press for 3 sec to reset
Press twice (TMR2): Timer 2, press for 3 sec to reset
Press three times (svc ENG): Will display time remaining until next service
point, hold down to reset. The first interval is 8hr, thereafter 100hr.
Beginning 5hr before service point the meter will flash “svc ENG, in
[remaining hours]” every 5 sec.
Shut off engine: Will display how many times the engine has started.
4.7 Deck Lift Lever
The foot operated deck lift is used to raise and lower the deck. Deck is to be in the up position when in
transport, go over curbs, loading and unloading on to a truck or trailer. The ZTO has a deck lift assist spring
but optional Deck Lift Foot Lever Extension Kits are available thru all Wright Dealers. (P/N 95460011)
4.8 ROP’s
A Roll Over Protection System (ROP’s, P/N 98410135) and seat belt is provided with the Wright ZTO. Do not
remove the ROP’s and the seat belt.
•Inspect ROP’s and seat hardware after the first 100 hrs of
operation and every 6 months for loose or missing hardware.
•Inspect the seat latch to make sure it is functioning properly.
•Make sure Retaining ring and clevis pin are fully installed and
lanyard is in good condition.
•Keep ROP’s fully extended.
•Use seat belt
Deck
Lift
Lever
Retaining
Ring
Pull Pin
w/
spring