OCDWB01
OPERATOR CONTROLLED
DISCHARGE FOR
WALK-BEHIND UNITS
Part No. 4500-569 Rev. A
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Introduction
CONGRATULATIONS on the purchase of your
Exmark equipment. This product has been carefully
designed and manufactured to give you a maximum
amount of dependability and years of trouble-free
operation.
This manual contains operating, maintenance,
adjustment, and safety instructions for your Exmark
equipment.
BEFORE OPERATING YOUR MOWER,
CAREFULLY READ THIS MANUAL IN ITS
ENTIRETY.
By following the operating, maintenance, and
safety instructions, you will prolong the life of your
equipment, maintain its maximum efficiency, and
promote safe operation.
If additional information is needed, or should you
require trained mechanic service, contact your
authorized Exmark equipment dealer or distributor.
Exmark parts manuals are available online at
All Exmark equipment dealers and distributors are
kept informed of the latest methods of servicing
and are equipped to provide prompt and efficient
service in the field or at their service stations. They
carry ample stock of service parts or can secure them
promptly for you from the factory.
All Exmark parts are thoroughly tested and inspected
before leaving the factory, however, attention is
required on your part if you are to obtain the fullest
measure of satisfaction and performance.
Whenever you need service, genuine Exmark parts,
or additional information, contact an Authorized
Service Dealer or Exmark Customer Service.
3
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Contents
Introduction ........................................................... 3
Assembling Discharge Deflector to
Installing OCDWB01 on Mower
4
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Safety
• Never let children or untrained people operate
Safety
Safety Alert Symbol
this manual and on the machine to identify important
safety messages which must be followed to avoid
accidents
or service the equipment. Local regulations may
restrict the age of the operator.
• Only adults and mature teenagers should operate
a mower, and even mature teenagers should have
adult supervision. Be sure a teenager:
1. has read and understands the Operator’s
Manual and recognizes the risks involved;
This symbol means: ATTENTION! BECOME
ALERT! YOUR SAFETY IS INVOLVED!
2. is sufficiently mature to use caution; and
3. is of sufficient size and weight to operate
the controls comfortably and to manage the
mower without taking risks.
Figure 1
• The owner/user can prevent and is responsible
for accidents or injuries occurring to himself or
herself, other people or property.
1. Safety alert symbol
The safety alert symbol appears above information
which alerts you to unsafe actions or situations
and will be followed by the word DANGER,
WARNING, or CAUTION.
Preparation
• Evaluate the terrain to determine what accessories
and attachments are needed to properly and
safely perform the job. Only use accessories and
attachments approved by Exmark.
DANGER: White lettering / Red background.
Indicates an imminently hazardous situation which, if
not avoided, Will result in death or serious injury.
• Wear appropriate clothing including safety glasses,
substantial footwear, long trousers, and hearing
protection. Do Not operate when barefoot or
when wearing open sandals.
WARNING: Black lettering / Orange background.
Indicates a potentially hazardous situation which, if
not avoided, Could result in death or serious injury.
CAUTION: Black lettering / Yellow background.
Indicates a potentially hazardous situation which, if
not avoided, May result in minor or moderate injury.
CAUTION
The machine that the OCDWB01 attaches to
produces sound levels in excess of 85 dBA at
the operator’s ear and can cause hearing loss
through extended periods of exposure.
This manual uses two other words to highlight
information. Important calls attention to special
mechanical information and Note emphasizes
general information worthy of special attention.
Wear hearing protection when operating this
machine.
Safe Operating Practices
• Inspect the area where the equipment is to be
used and remove all rocks, toys, sticks, wires,
bones, and other foreign objects which can be
thrown by the machine and may cause personal
injury to the operator or bystanders.
Training
• Read the OCDWB01 and tractor Operator’s
Manuals and other training material. If the
operator(s) or mechanic(s) can not read English
it is the owner’s responsibility to explain this
material to them.
Operation
• Operate only in daylight or good artificial light,
keeping away from holes and hidden hazards.
• Become familiar with the safe operation of the
equipment, operator controls, and safety signs.
• All operators and mechanics should be trained.
The owner is responsible for training the users.
• Never mow with the discharge deflector raised,
removed or altered unless there is a grass
5
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Safety
collection system or mulch kit in place and
working properly.
WARNING
Removing standard original equipment
parts, or using non-Exmark replacement
parts and accessories may alter the warranty,
traction, and safety of the machine. Failure
to use original Exmark parts could cause
serious injury or death.
• Stop engine, wait for all moving parts to stop,
remove key and engage parking brake:
– Before checking, cleaning or working on the
mower.
– After striking a foreign object or abnormal
vibration occurs (inspect the mower for
damage and make repairs before restarting
and operating the mower).
Replace all parts with original Exmark parts.
– Before clearing blockages.
– Whenever you leave the mower.
WARNING
Hands, feet, hair, clothing, or accessories can
become entangled in rotating parts. Contact
with the rotating parts can cause traumatic
amputation or severe lacerations.
• Do Not operate the machine without
guards, shields, and safety devices in
place and working properly.
• Keep hands, feet, hair, jewelry, or clothing
away from rotating parts.
• NEVER carry passengers. DO NOT operate
the mower when people, especially children, or
pets are in the area.
Maintenance and Storage
• Disengage PTO, set parking brake, stop engine
and remove key or disconnect spark plug wire.
Wait for all movement to stop before adjusting,
cleaning or repairing.
• Use care when checking blades. Wrap the blade(s)
or wear gloves, and use caution when servicing
them. Only replace damaged blades. Never
straighten or weld them.
• Keep all guards, shields and all safety devices in
place and in safe working condition.
• Check all bolts frequently to maintain proper
tightness.
• Frequently check for worn or deteriorating
components that could create a hazard.
6
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Safety
Safety and Instructional Decals
• Keep all safety signs legible. Remove all grease,
dirt and debris from safety signs and instructional
labels.
• New safety signs may be obtained from
your authorized Exmark equipment dealer or
distributor or from Exmark Mfg. Co. Inc.
• Replace all worn, damaged, or missing safety
signs.
• Safety signs may be affixed by peeling off the
backing to expose the adhesive surface. Apply
only to a clean, dry surface. Smooth to remove
any air bubbles.
• When replacement components are installed, be
sure that current safety signs are affixed to the
replaced components.
• Familiarize yourself with the following safety signs
and instruction labels. They are critical to the safe
operation of your Exmark commercial mower.
• If an attachment or accessory has been installed,
make sure current safety signs are visible.
98-5954
116-1537
7
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Setup
Setup
Assembling Discharge
Deflector to OCDWB01
Insert the rod through the first tab on the gate link
frame, discharge deflector, and second tab on the gate
that the loop will rest in the notch on the discharge
deflector. Continue to push the rod into the linkage
cover. Orient and install the hairpins into the ends of
Figure 3
1. Knock out tab
1. Flip up the existing discharge deflector.
Important: The OCDWB01 comes with its
own discharge deflector. When using the
OCDWB01, Exmark recommends the original
discharge deflector to remain installed on the
unit and in the flipped up position. There are
some instances where the existing discharge
deflector must be removed when installing
the OCDWB01. If the original discharge
deflector is removed during the OCDWB01
installation, retain the discharge deflector
and its hardware for reinstallation once the
OCDWB01 is removed.
2. Install the OCDWB01 assembly by inserting the
mounting pin into the tube welded to the rear
Figure 2
1. Hairpin
2. Rod
3. Discharge deflector
6. Second tab
7. Linkage cover
8. Spring
4. Gate link frame
5. First tab
9. Notch
Installing OCDWB01 on
Mower Deck
For 32 inch, 36 inch, or Vantage decks: Use a
hammer and chisel to knock out the tab, as shown in
Knocking out the tab allows the OCDWB01 frame
to fit properly to these decks.
Figure 4
1. Flip up discharge chute
2. Mounting pin inserted
into deck tube
3. OCDWB01 assembly
4. Rotate
3. Pivot the assembly towards the deck. The front
pin should engage into the slot in the deck as
8
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Setup
storage position for potential later use on
other mower decks.
A. Remove the shim located on the front of
the gate link frame and loosely reinstall
the nut.
B. Loosen the nut on the left adjustment slot
of the gate link frame.
C. Install the shim between the gate link
frame and the pivot mount assembly.
Position the center tab of the shim
between the two mounting bolts as shown
Figure 5
D. Tighten hardware.
1. Latch
2. OCDWB01 assembly
3. Front pin
4. Slot
4. Rotate the latch downward to lock the assembly
tension on the latch to hold the assembly up to
the deck, yet allow for release by hand. Tension
can be adjusted by tightening or loosening the
hardware that retains the latch.
• If the front pin does not engage in the slot
in the deck, loosen or completely remove the
hardware in the gate link frame as shown in
the front pin aligns with the slot. Reinstall
hardware, if removed, and tighten. Pivot the
assembly towards the deck and engage the
front pin into the slot.
5. Install the mounting bracket to the unit.
• For all Walk-Behind Units except Vantage:
A. Position the mounting bracket vertically,
with the wide opening of the bracket
pointed upward, and install on the front of
Figure 6
1. Gate link frame
2. Adjustment slots
3. Hardware
4. Shim (storage position)
5. Pivot mount assembly
6. Shim (installed position)
• Due to manufacturing variance, the gate
link frame may not close and have complete
contact all around the discharge opening.
Any gaps are to be minimized. If the rear of
the gate link frame contacts the mower deck
while rotating it towards the deck creating a
gap at the front, use the steps below to install
a shim. If the gate link frame has complete
contact all around the discharge opening, the
shim is not necessary. It can remain in the
Figure 7
1. Drill
2. 5/16-18 x 5/8 inch
carriage bolt
3. Mounting bracket
4. 5/16 inch nyloc nut
B. Using the mounting bracket as a template,
mark the two hole locations on the front
9
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Setup
there will be room to tighten the nut on
the upper hole, on the underside of the
front panel.
C. Drill two 11/32 inch diameter holes on
D. Align the two holes in the mounting
bracket with the front panel of the unit.
Install 5/16-18 x 5/8 inch carriage bolt
through the upper hole and secure with
5/16 inch nyloc nut.
E. Insert the handle assembly into the
Figure 9
3. Handle assembly cable
1. Knob
2. Loom clip
H. Use velcro straps to secure the cable as
Important: Keep the cable away from
heat sources such as the muffler and
manifold.
Important: Belt shields must be in
place before operating the OCDWB01.
Figure 8
1. Handle assembly
2. Mounting bracket
3. Clevis pin
4. Hairpin
F. Insert the clevis pin through the handle
assembly hole, into the bottom hole of the
mount bracket and through the front panel
of the unit. Install the hairpin through the
G. If the mower deck is not equipped with
belt shield knobs, skip to step H. If the
deck does have belt shield knobs, secure
the loom clip by removing the rear knob
on the belt shield. Place the loom clip
onto the belt shield stud and reinstall the
Figure 10
1. Velcro strap
• For Vantage Units:
A. The bracket is installed on the left side
panel with the wide opening pointed
toward the rear of the machine as shown
10
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Setup
B. Align the existing hole at the rear of the
unit with the right hole on the bracket.
C. Position the bracket horizontally or with
the narrow end pointed slightly downward.
D. Using the mounting bracket as a template,
mark the left hole location onto the side
panel of the unit and drill 11/32 inch
Figure 12
3. Clevis pin
4. Hairpin
1. Handle assembly
2. Mounting bracket
G. Insert the clevis pin through the handle
assembly hole, into the left hole of the
mounting bracket, and through the panel
of the unit. Secure the handle assembly
H. Remove the nut from the front panel
guard, install the loom clip, and replace
Figure 11
1. Drill
2. 5/16-18 x 5/8 inch
carriage bolt
3. Mounting bracket
4. 5/16 inch nyloc nut
E. Align the two holes in the mounting
bracket with the panel of the unit. Install
5/16-18 x 5/8 inch carriage bolt and 5/16
inch nyloc nut in the hole on the right side.
F. Insert the handle assembly into the
Figure 13
1. Front panel guard
2. Loom clip
3. Nut
I. Use velcro straps to secure the cable as
Important: Keep the cable away from
heat sources such as the muffler and
manifold.
Important: Belt shields must be in
place before operating the OCDWB01.
11
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Operation
Opening the Discharge Gate
For all Walk-Behind Units except Vantage: Rotate
Operation
Use the discharge gate to temporarily stop or deflect
grass clippings away from sidewalks, parking lots,
patios, or anywhere grass clippings are not desired to
be discharged. The handle allows the discharge gate
to be held in any position from fully closed to fully
open.
the handle upward to open the gate.
Important: Make sure the mower is in neutral
before operating the handle of the discharge
gate.
Important: Always mow with the discharge
deflector installed and in the down position.
DANGER
An uncovered discharge opening will allow
objects to be thrown in an operator’s or
bystanders’s direction. Also contact with the
blade could occur. Thrown objects or blade
contact can cause serious injury or death.
Figure 16
1. Rotate upward
2. Handle in gate open
position
For Vantage Units: Rotate the handle rearward to
Never operate the mower with the discharge
deflector raised, removed, or altered unless
there is a grass collection system or mulch
kit in place and working properly.
open the gate.
DANGER
The rotating blades under the mower deck
are dangerous. Blade contact can cause
serious injury or kill you.
Do Not put hands or feet under the mower
or mower deck when the blades are engaged.
Figure 17
1. Rotate rearward
2. Handle in gate open
position
13
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Operation
Closing the Discharge Gate
For all Walk-Behind Units except Vantage: Push
Removing the OCDWB01
1. Remove and retain the velcro straps that secure
the handle assembly cable to the mower. If
installed, remove and retain the loom clip from
the deck and replace the rear knob.
down on the handle to close the gate.
2. Remove the hairpin and clevis pin from the
handle assembly.
3. Remove the handle assembly:
• For all Walk-Behind Units except Vantage:
Slide the handle assembly upward and out of
Note: The mounting bracket does not have
to be removed from the front panel.
Figure 18
1. Push down
2. Handle in gate closed
position
For Vantage Units: Push forward on the handle to
close the gate.
Figure 20
1. Clevis pin
2. Hairpin
3. Handle assembly
4. Mounting bracket
• For Vantage Units: Slide the handle
assembly rearward and out of the mounting
Note: The mounting bracket does not have
to be removed from the side panel.
Figure 19
1. Push forward
2. Handle in gate closed
position
14
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Operation
Figure 21
3. Clevis pin
4. Hairpin
1. Handle assembly
2. Mounting bracket
4. Unlock the assembly and pivot it away from the
mower deck. Lift the OCDWB01 out of the deck
mounting tube.
5. Lower the existing discharge deflector.
Important: Reinstall the original discharge
deflector if it was removed during the
OCDWB01 installation.
6. The machine can now be used for side discharge
mowing.
15
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Maintenance
Maintenance
Note: Determine the left and right sides of the machine from the normal operating position.
WARNING
While maintenance or adjustments are being
made, someone could start the engine.
Accidental starting of the engine could
seriously injure you or other bystanders.
Remove the key from the ignition switch,
engage parking brake, and pull the wire(s)
off the spark plug(s) before you do any
maintenance. Also push the wire(s) aside
so it does not accidentally contact the spark
plug(s).
Recommended Maintenance Schedule(s)
Maintenance Service
Maintenance Procedure
Interval
• Check for loose hardware.
Before each use or daily
• Check discharge gate closure.
Periodic Maintenance Adjustments
Note: Disengage PTO, shut off engine, wait for
Check for Loose Hardware
Service Interval: Before each use or daily
all moving parts to stop, engage parking brake, and
remove key before servicing, cleaning, or making any
adjustments to the unit.
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
Handle Adjustment
The handle allows the gate to be held in any position.
Adjust the tension of the pivot bolt and nut as shown
2. Visually inspect machine for any loose hardware
or any other possible problem. Tighten hardware
or correct the problem before operating.
Check Discharge Gate
Closure
Service Interval: Before each use or daily
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Visually inspect that the discharge gate closes flat
against the discharge opening. If not, reshape
the discharge gate so it closes properly and
completely.
16
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Maintenance
1
2
3
4
G012592
7
6
Figure 22
5
1. Pivot bolt and nut
Figure 23
1. Cable nuts
2. Linkage cover (shown hidden for clarity)
3. Lock nut
4. Pivot adjuster
5. Discharge deflector
6. Gate pivot
7. Cotter pin
Discharge Gate Adjustment
The discharge gate is properly adjusted in the closed
position when the discharge gate is flat against the
discharge opening.
If the discharge gate does not close flat follow the
steps below:
5. If more adjustment is necessary, remove the cotter
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
6. Remove the pivot adjuster from the gate pivot.
7. Loosen the lock nut.
2. Place the handle in the closed position, refer to
Closing the Discharge Gate in the Operation
section.
8. Thread the pivot adjuster forward or backward
until desired result is achieved.
3. Unlock the OCDWB01 assembly and pivot it
away from the mower deck.
9. Tighten the lock nut and reinstall the pivot
adjuster into the gate pivot and secure with the
cotter pin.
4. Adjust the cable nuts located behind and under
desired gate position is achieved.
10. Repeat steps 4 through 9 until the discharge gate
is properly adjusted.
The discharge gate is properly adjusted in the open
position when the gate handle hits the fully open
stop and the discharge gate makes contact, or almost
makes contact, with the discharge deflector.
If the discharge gate does not open fully, repeat steps
4 through 9 to readjust. The discharge gate will not
close as tight against the discharge opening after this
adjustment is made.
17
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Troubleshooting
Troubleshooting
Important: It is essential that all operator safety mechanisms be connected and in proper operating
condition prior to mower use.
The following table lists some of the common causes of trouble. If assistance is needed, contact your
Exmark Service Dealer.
Problem
Possible Cause
Corrective Action
1. Discharge gate is deformed.
1. Reshape the discharge gate.
Discharge gate does not open and/or close.
2. Discharge gate is not adjusted properly.
2. Adjust the cable nuts and/or pivot gate.
3. Cable is disconnected at one or both ends. 3. Reconnect cable.
Handle is too loose or tight.
1. Pivot bolt and nut not adjusted properly.
1. Adjust the bolt and nut for proper
resistance.
18
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Exmark Commercial Attachments and Accessories
90 Day Limited Warranty
Conditions and Products Covered
Owner’s Responsibilities
Exmark Mfg. Co. Inc. and its affiliate, Exmark Warranty
Company, pursuant to an agreement between them, jointly
warrant on the terms and conditions herein, that we will repair,
replace or adjust any part on these products and found by us
(in the exercise of our reasonable discretion) to be defective in
factory materials or workmanship for a period of 90 days.
If your product requires warranty service it must be returned
to an authorized Exmark service dealer within the warranty
period. This warranty extends only to commercial attachments
and accessories operated under normal conditions. You must
read the operator’s manual. You must also properly service
and maintain your Exmark product as described in the
operator’s manual or other operational instructions provided
by Exmark. Such routine maintenance, whether performed by
a dealer or by you, is at your expense.
This warranty applies to Exmark commercial attachments and
accessories sold in the U.S. or Canada. This warranty may
only be assigned or transferred to a second (or third) owner by
an authorized Exmark dealer. The warranty period commences
upon the date of the original retail purchase.
General Conditions
The sole liability of Exmark and Exmark Warranty Company
with respect to this warranty shall be repair or replacement of
defective components as set forth herein. Neither Exmark
nor Exmark Warranty Company shall be liable for any
incidental or consequential loss or damage.
This warranty only includes the cost of parts and labor.
Items and Conditions Not Covered
This warranty does not cover the following:
• Pickup and delivery charges to and from any authorized
Exmark Service Dealer.
• Any damage or deterioration due to normal use, wear and
tear, or exposure.
• Cost of regular maintenance service or parts, such as filters,
fuel, lubricants, tune-up parts, and adjustments.
• Any product or part which has been altered or misused or
required replacement or repair due to normal wear,
accidents, or lack of proper maintenance.
• Any repairs necessary due to use of parts, accessories or
supplies, including gasoline, oil or lubricants, incompatible
with the attachment or accessory or other than as
recommended in the operator's manual or other operational
instructions provided by Exmark.
Such damages include but are not limited to:
• Expenses related to gasoline, oil or lubricants.
• Travel time, overtime, after hours time or other
extraordinary repair charges or charges relating to repairs or
replacements outside of normal business hours at the place
of business of the authorized Exmark Service Dealer.
• Rental of like or similar replacement equipment during the
period of any warranty, repair or replacement work.
• Any telephone or telegram charges or travel charges.
• Loss or damage to person or property other than that
covered by the terms of this warranty.
• Any claims for lost revenue, lost profit or additional cost as
a result of a claim of breach of warranty.
• Attorney's fees.
All warranty work must be performed by an authorized
Exmark Service Dealer using Exmark approved replacement
parts.
No Claim of breach of warranty shall be cause for cancellation
or rescission of the contract of sale of any Exmark attachment
or accessory.
Instructions for Obtaining Warranty Service
The product must be registered with original proof of purchase
by an Exmark Service Dealer before obtaining any warranty
service.
All implied warranties of merchantability (that the
product is fit for ordinary use) and fitness for use (that the
product is fit for a particular purpose) are limited to the
duration of the express warranty.
Contact any Exmark Service Dealer to arrange service at their
dealership. To locate a dealer convenient to you, access our
also call 402-223-6375.
Some states do not allow exclusions of incidental or
consequential damages, or limitations on how long an
implied warranty lasts, so the above exclusions and
limitations may not apply to you.
If for any reason you are dissatisfied with the Service Dealer’s
analysis or with the assistance provided, contact us at:
This warranty gives you specific legal rights, and you may
also have other rights which vary from state to state.
Exmark Customer Service Department
The Exmark Warranty Company
2101 Ashland Avenue
Beatrice, NE 68310
402-223-6375 or
G4500-427_B
19
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SEE EXMARK’S COMPLETE LINE OF ACCESSORIES AND OPTIONS
MID-MOUNT RIDING ACCESSORIES AND OPTIONS
CUSTOM RIDE SEAT SUSPENSION SYSTEM
FULL SUSPENSION SEAT
DECK LIFT ASSIST KIT
HITCH KIT
OPERATOR CONTROLLED DISCHARGE
ROLL OVER PROTECTION SYSTEM (ROPS)
SUN SHADE
TRASH CONTAINER
LIGHT KIT
TURF STRIPER
12V POWER PORT
ULTRA VAC COLLECTION SYSTEM
ULTRA VAC QUICK DISPOSAL SYSTEM
MICRO-MULCH SYSTEM
OUT-FRONT RIDING ACCESSORIES AND OPTIONS
CUSTOM RIDE SEAT SUSPENSION SYSTEM
DUAL-TAIL WHEEL
SNOW BLADE
SNOWBLOWER
FLOOR PAN EXTENDER
HITCH KIT
SUN SHADE
TRASH CONTAINER
LIGHT KIT
ULTRA VAC COLLECTION SYSTEM
ULTRA VAC QUICK DISPOSAL SYSTEM
WEATHER CAB
MICRO-MULCH SYSTEM
ROLL OVER PROTECTION SYSTEM (ROPS)
WALK-BEHIND ACCESSORIES AND OPTIONS
GRASS CATCHER
TURF STRIPER
STANDON
MICRO-MULCH SYSTEM
Place Model No. and Serial No.
Label Here (Included in the Literature
Pack) or Fill in Below
Date Purchased
Model No.
Serial No.
© 2010 Exmark Mfg. Co., Inc.
Industrial Park Box 808
Beatrice, NE 68310
Part No. 4500-569 Rev. A
(402) 223-6300
Fax (402) 223-5489
Printed in the USA
All Rights Reserved
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