Wright Manufacturing Wright Z 31897 User Manual
Commercial Mower Owner’s Manual
For the Wright Z serial #31897 and higher until superseded
WARNING: READ THIS MANUAL BEFORE USING
For your safety and for proper operation and maintenance read
carefully and keep readily available for future reference.
Revised 06/2007
Additional replacement owner’s manuals as well as illustrated parts lists are available from your
authorized Wright Dealer for a nominal charge. Also check www.wrightmfg.com
to date product literature. Please note the model number and serial number of your Wright
product.
For reference please note the following information at the time of purchase:
SERIAL # _________________________
MODEL # _________________________
DATE OF PURCHASE ______________________
for the most up
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.
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.
©1998-2005 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, Stander,
and Sentar are trademarks of Wright Manufacturing, Inc.
TABLE OF CONTENTS
PRE-DELIVERY SERVICE OF MOWER BY DEALER............................................................. 1
SAFETY INSTRUCTIONS......................................................................................................... 3
INTRODUCTION......................................................................................................................... 3
ENERAL SAFETY INSTRUCTIONS .............................................................................................. 3
G
O
WNER/USER NOTICE.............................................................................................................. 3
USER QUALIFICATIONS.............................................................................................................. 3
USER CLOTHING....................................................................................................................... 4
INSPECT MOWER BEFORE EACH USE......................................................................................... 4
REGULAR MOWER SAFETY MAINTENANCE.................................................................................. 4
WORK AREA CONDITIONS & INSPECTION.................................................................................... 4
INITIAL OPERATING SAFETY GUIDELINES .................................................................................... 5
OPERATION IN FORWARD DIRECTION ......................................................................................... 5
OPERATION IN REVERSE ........................................................................................................... 6
ERO-RADIUS TURN OPERATION ............................................................................................... 6
Z
O
PERATION ON SLOPES............................................................................................................ 6
FUEL SAFETY........................................................................................................................... 7
HYDRAULIC SAFETY.................................................................................................................. 7
REPLACEMENT PARTS .............................................................................................................. 7
OPERATING INSTRUCTIONS ................................................................................................. 9
HOW TO START THE MOWER ...................................................................................................... 9
Before starting the engine .................................................................................................. 9
Starting the engine ............................................................................................................. 9
HOW TO DRIVE THE MOWER....................................................................................................... 9
HOW TO STOP AND PARK THE MOWER..................................................................................... 10
DRIVING THE MOWER OVER A CURB ........................................................................................ 10
MOWING ON VARYING TERRAIN ............................................................................................... 10
HOW TO ADJUST NEUTRAL...................................................................................................... 11
HOW TO PERFORM THE TRACKING ADJUSTMENT....................................................................... 11
OW TO TEST/USE THE BLADE CLUTCH/BRAKE SWITCH............................................................ 11
H
HOW TO TEST THE OPERATOR PRESENCE CONTROL (OPC) SWITCH ......................................... 11
SERVICE AND ADJUSTMENTS................................................................................................... 12
Tire Maintenance and Pressure ....................................................................................... 12
Height-of-Cut.................................................................................................................... 12
Belt Tension Adjustment................................................................................................... 12
How to Move the Mower if the Engine Won’t Start........................................................... 12
Bleeding Air from the Hydraulic System........................................................................... 12
Battery Service................................................................................................................. 12
Cleaning the Mower.......................................................................................................... 13
MAINTENANCE INTERVAL CHART...................................................................................... 15
MAINTENANCE RECORD...................................................................................................... 16
* * This Page Intentionally Left Blank * *
Pre-Delivery Service of Mower by Dealer
If you are not completely familiar with the Safety Instruction
Manual read it now before proceeding with the Pre-Delivery
WARNING
The Wright Z is shipped assembled and has been adjusted and tested at the factory. However, due to
jostling during 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, follow these procedures in the
order indicated:
• Remove spark plug wire from spark plug(s).
• Inspect the mower for any damage, unusual conditions or missing parts. Seat may be detached for
crating purposes. Make sure all hardware is present.
• 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” under the blade belt covers, and the
dash decal. The Park Brake and General Safety Decal should in place near the brake lever.
• Check (and fill if necessary) engine oil level according to the engine manufacturer’s recommendation.
• Check (and fill if necessary) hydraulic fluid level. The level should be about 1”-1.5” below the top of the
oil fill. Use synthetic oil: Mobil1 15W-50.
• Check rear tire pressure - 18 to 22 psi. is recommended. It should be even on both sides. Use the
higher pressures for heavier operators. The front caster tires are a non-pneumatic style wheel, and
do not require air pressure.
• 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 sufficiently start the mower.
• Remove the blade belt covers and inspect the belt and idler arm for smooth operation.
• Rotate the blade pulleys slightly to see if they rotate freely and all turn together. There will be
resistance due to the clutch brake.
• Replace the blade belt covers.
• Check the Rapid-Hite deck height adjustment mechanism for proper operation. Pressing the lift pedal
all the way down will engage the latch mechanism. Releasing pressure from the pedal should
allow the latch to lock the deck in the transport position. Pressing on the pedal again should
release the latch mechanism and allow the deck height to be set according to the location of the
deck-height detent pin.
• Lubricate all moving parts (see Maintenance Items
• Fill fuel tank with regular unleaded gasoline. Turn fuel tank selector valve left or right, depending which
tank is filled with gas. Note: the downward position is off. The fuel tank selector valve is located in
the rear of the seat frame on the left side.
• DO NOT START THE ENGINE AT THIS TIME. FOLLOW THE NEXT PROCEDURE BEFORE
STARTING. The hydraulic system MUST be checked for proper operation before allowing wheels
to operate on the ground.
• Set the rear of the machine on jack stands or blocks to raise rear wheels off the ground two or three
inches and check to be sure that the mower will not fall off the supports you devise. The stand(s)
must be able to secure the mower from rolling off or away during the next procedures. Check
under the mower deck for any debris or unusual conditions.
• With hand controls in the neutral and outward position, apply the parking brake.
• Open the manual bypass valves on front-side of each pump a half-a-turn counterclockwise. The pump
bypass valves are accessible by lifting the seat tray.
• Reattach spark plug wires to spark plugs.
Service of the mower. Only your authorized Wright dealer
should perform the Pre-Delivery Service of the mower.
section of this manual).
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• Before starting the engine be ready to stop it if the wheels begin to turn with the brake on. (If this
happens, check that the manual bypass valves on side of each pump are open at least a half-a-turn
counterclockwise.)
• Start the engine according to the engine manufacturer’s recommendation. Let the engine run at low
RPM for several minutes to get the hydraulic fluid circulating through the pumps. It will be
necessary to use a pair of locking pliers to activate the seat OPC plunger switch while standing
beside the unit. Release the Parking Brake cautiously as the wheels may start to move. Now
gradually tighten the manual bypass valves on the front of each pump one at a time and see if the
wheels start to move. If the wheels move when the hand controls are in neutral position, adjust the
pump neutral adjustment Allen screw. This procedure is described in the Operating instructions
portion of this manual. The manual bypass valves on side of each pump should now be firmly
closed. (Do not tighten these bypass valves with a wrench. Only hand tighten). Now try moving
the hand control levers, one at a time, forward and backward. Check to see if the wheels move
forward and backward according to position of the levers. If not, service the hand control system.
If the wheels stop when the hand controls are in the neutral position, the parking brake should now
be applied. Remove locking pliers from OPC, the blade testing will require that you are seated on
the unit for your safety. Failure to comply could result in serious injury.
• Before testing the blade clutch/brake operation, make sure the area is clear and there is nothing
vulnerable to being thrown from under the mower. No one should be near the mower deck or in its
line of discharge at this time or at any time. The discharge chute deflector should be in the down
position. Move the engine throttle to ¾ speed setting. Note: the Blades will not operate in with the
parking brake engaged.
• Be sure that you are sitting on the operator seat and turn on the blade clutch switch. Run blades for a
minute or so. Try engaging and disengaging the blades a few times about 10 seconds apart. If the
blades do not start and stop in a short amount of time, service the blade brake system. With the
blades on, now try lifting your weight off the operator seat to test the Operator Presence Control
switch (OPC). The engine should die and the blades should begin to stop after a ½ second delay.
The blades should come to a stop in several seconds. If not, service the OPC system. Try this a
couple of times.
• Disengage the blades, set the parking brake, shut off the engine and remove the mower from the
stand(s).
• Drive the mower around on a level parking lot. Be sure that the mower drives in a straight line when
both hand controls are held to the full speed position. If not, see further in this manual for
information on tracking adjustment.
• As you drive the mower, listen for any unusual noises and test for irregular operation and adjust or
service as necessary. Next, go over the safety information and operating procedures in this
manual with the customer. Instruct the customer in proper operation and observe the customer
during their initial operation on a level parking lot. Make sure the customer is familiar and
comfortable with the basic operation and use of the mower.
• Dealer: Please fill out and
customer fill out their portion of the form. After the Product Registration Form is filled out and
signed by the customer and a representative from your dealership, please send or fax it within 14
days to your Wright Manufacturing Distributor according to the directions on the Form. Give the
customer their copy of the registration form and keep your copy for your records. The remaining
copies of the forms should be mailed to your Wright Manufacturing Distributor. The limited
warranty is not valid unless the mower is registered and all of the above steps are taken.
Remember, the purchaser is both your and our customer and his satisfaction is very important.
Thank you for supporting our products.
follow the instructions
on the Product Registration Form and have the
The mower is now ready for delivery to your customer
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SAFETY INSTRUCTIONS
WRIGHT MOWER USERS & OWNERS: READ THIS MANUAL BEFORE USING
PLEASE BE CAREFUL!
This symbol with the word “WARNING”
indicates a potentially hazardous situation
which, if not avoided, could result in death or
serious injury.
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.
The Wright Z 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 blade switch must be “off” before starting
• You must be seated with the Park brake on
• You must be seated to engage the blades
• If you lift off the seat while the blades are
• Spring loaded chute deflector helps reduce
• Belt/pulley covers on cutter deck
• Low center-of-gravity (CG) to improve stability
WARNING
Introduction
General Safety Instructions
the parking brake and general warning decal
the engine
and control levers in neutral to start engine.
Neutral refers to the outward lever position.
running the engine will stop and the blades
will brake in seconds
trajectory of thrown objects
on hills
CAUTION
This symbol with the word “CAUTION”
indicates a potentially hazardous situation
which, if not avoided, could result in minor
or moderate injury.
WARNING
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 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.
WARNING
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 300 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.
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