Exmark Vacuum Cleaner LAZER Z HP User Manual

ULTRA VAC®  
LAZER Z® HP MODELS  
For Serial Nos.  
850,000 & Higher  
Part No. 4500-599 Rev. A  
 
Introduction  
CONGRATULATIONS on the purchase of your  
Exmark Ultra Vac. 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  
Ultra Vac.  
BEFORE OPERATING YOUR MOWER,  
CAREFULLY READ THIS MANUAL IN ITS  
ENTIRETY.  
Figure 1  
1. Model and serial number location  
By following the operating, maintenance, and safety  
instructions, you will prolong the life of your Ultra  
Vac, maintain its maximum efficiency, and promote  
safe operation.  
Model No.  
Serial No.  
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 and have  
the model and serial numbers of your product ready.  
Figure 1 identifies the location of the model and serial  
numbers on the product. Write the numbers in the  
space provided.  
3
 
   
Contents  
Introduction ........................................................... 3  
Periodic Maintenance ....................................... 15  
Check Blower Housing/Impeller................... 15  
4
 
Safety  
• Never let children or untrained people operate  
Safety  
Safety Alert Symbol  
This Safety Alert Symbol (Figure 2) is used both in  
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 2  
• 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 on machines 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  
This machine 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 tractor and Ultra Vac 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
 
       
Safety  
collection system or mulch kit in place and  
working properly.  
Slope Operation  
Use Extreme caution when mowing and/or turning  
on slopes as loss of traction and/or tip-over could  
occur. The operator is responsible for safe operation  
on slopes.  
DANGER  
There are rotating blades in the blower and  
under the mower deck. Blade contact can  
cause serious operator or bystander injury  
or even death.  
DANGER  
Operating on wet grass or steep slopes can  
cause sliding and loss of control. Wheels  
dropping over edges, ditches, steep banks, or  
water can cause rollovers, which may result  
in serious injury, death or drowning.  
• Do Not reach into blower unless rotation  
indicator has stopped. Disengage PTO,  
stop engine, remove key, wait for all  
moving parts to stop. engage parking  
brake.  
• Do Not mow slopes when grass is wet.  
• Do Not mow near drop-offs or near water.  
• Never operate mower unless discharge  
deflector, entire grass collection system,  
or mulch kit is installed.  
• Do Not mow slopes greater than 15  
degrees.  
• Stop engine, wait for all moving parts to stop,  
remove key and engage parking brake:  
• Reduce speed and use extreme caution  
on slopes.  
– Before checking, cleaning or working on the  
mower.  
• Avoid sudden turns or rapid speed  
changes.  
– After striking a foreign object or abnormal  
vibration occurs (inspect the mower for  
damage and make repairs before restarting  
and operating the mower).  
• Keep the roll bar in the raised and locked  
position and use seat belt.  
• See inside the back cover to determine the  
approximate slope angle of the area to be mowed.  
– Before clearing blockages.  
– Whenever you leave the mower.  
• Use a walk behind mower and/or a hand trimmer  
near drop-offs, ditches, steep banks or water.  
(Figure 3).  
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.  
• Stop the blades, slow down, and use caution when  
crossing surfaces other than grass and when  
transporting the mower to and from the area to  
be mowed.  
• Be aware of the mower discharge path and direct  
discharge away from others.  
6
 
Safety  
progressively greater care on slopes as the hopper  
fills.  
Maintenance and Storage  
• Disengage drives, 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.  
Figure 3  
1. Safe Zone-Use the mower here on slopes less than 15  
degrees  
2. Danger Zone-Use a walk behind mower and/or hand  
trimmer on slopes greater than 15 degrees, near  
drop-offs and water.  
• Check all bolts frequently to maintain proper  
tightness.  
• Frequently check for worn or deteriorating  
components that could create a hazard.  
3. Water  
• All replacement parts must be the same as  
or equivalent to the parts supplied as original  
equipment.  
• Remove or mark obstacles such as rocks, tree  
limbs, etc. from the mowing area. Tall grass can  
hide obstacles.  
• Watch for ditches, holes, rocks, dips and rises that  
change the operating angle, as rough terrain could  
overturn the machine.  
• Avoid sudden starts when mowing uphill because  
the mower may tip backwards.  
• Be aware that operating on wet grass, across steep  
slopes or downhill may cause the mower to lose  
traction. Loss of traction to the drive wheels may  
result in sliding and a loss of braking and steering.  
• Always avoid sudden starting or stopping on a  
slope. If tires lose traction, disengage the blades  
and proceed slowly off the slope.  
• Follow the manufacturer’s recommendations for  
wheel weights or counter weights to improve  
stability. Always install and remove the Ultra Vac,  
including counter weights, as instructed. Failure  
to do so will cause a reduction in stability or  
traction. Do Not operate the mower with only a  
portion of the Ultra Vac installed.  
• Use extreme care with grass catchers or  
attachments. These can change the stability of the  
machine and cause loss of control. The stability  
and traction of the machine will change as the  
Ultra Vac hopper fills with grass clippings. Use  
7
 
 
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.  
1-653558  
98-5954  
103-6604  
For Units with a 2 Post ROPS Only  
103-6605  
For Units with a 2 Post ROPS Only  
103-3508  
8
 
 
Specifications  
Specifications  
Model Numbers  
Serial Nos: 850,000 and Higher  
LHPUV4448; LHPUV4650; LHPUV5256  
Systems  
Curb Weight:  
156 lb (71 kg), including the front weight.  
Bagging System  
• Collection Bins:  
Torque Requirements  
– Commercial grade, cloth mesh bags with  
reinforced bottoms.  
Bolt Location  
Torque  
– Capacity: 8 bushels (2 bags and hood)  
• Dump Mechanism: Manual lift off  
Impeller Spindle Bottom 55-60 ft-lb (75-81 N-m)  
Nut  
Impeller Spindle Top Nut 75-80 ft-lb (102-108 N-m)  
• Blower Tube: Fixed, abrasion resistant molded  
polyethylene.  
• Impeller: 5–bladed, 1/4 inch (6.4 mm) thick  
abrasion resistant steel, with vertical axis.  
• Impeller bearings: 1 inch (2.5 cm) sealed  
non-greaseable bearings.  
Dimensions  
Overall Width:  
w/Ultra Vac  
44 inch Deck  
46 inch Deck  
48 inch Deck  
50 inch Deck  
52 inch Deck  
56 inch Deck  
58.47 inches (148.5 cm)  
60.67 inches (154.1 cm)  
61.73 inches (159.8 cm)  
64.66 inches (164.2 cm)  
66.47 inches (168.8 cm)  
70.85 inches (180.0 cm)  
Overall Length:  
w/Ultra Vac  
44 inch Deck  
46 inch Deck  
48 inch Deck  
50 inch Deck  
52 inch Deck  
56 inch Deck  
91.76 inches (233.1 cm)  
94.69 inches (240.5 cm)  
91.76 inches (233.1 cm)  
95.12 inches (241.6 cm)  
93.00 inches (236.2 cm)  
97.86 inches (248.6 cm)  
9
 
         
Operation  
Product Overview  
Operation  
Note: Determine the left and right sides of the  
machine from the normal operating position.  
Pre-Start  
Make sure you understand the controls, their  
locations, their functions, and their safety  
requirements.  
Ensure the blower, belt cover, bags, tube and hood  
are in good condition, properly attached, and latched.  
For units above Serial Nos. 600,000 with Triton  
decks: Make sure that the adjustable dog leg baffle is  
closed to match the intake into the Ultra Vac Blower.  
Figure 4  
1. Bag  
2. Hood  
4. Blower  
5. Tube  
WARNING  
3. Weight  
If the blower intake opening is not correct it  
will allow objects to be thrown in operator’s  
or bystander’s direction. Also, contact with  
blade could occur. Thrown objects or blade  
contact can cause serious injury or kill you  
or bystanders.  
Adjust dog leg baffle to match intake  
opening.  
Refer to the Maintenance section and perform all the  
necessary inspection and maintenance steps.  
Operating Instructions  
Mowing  
1. The Ultra Vac blower operates when deck drive  
is engaged. Be sure that all persons are clear  
of the mower deck before engaging the cutting  
blades. Set the throttle to “midway” position. Pull  
outward on the PTO switch to the “ROTATE”  
position. Accelerate to full throttle to begin  
mowing.  
2. To disengage the deck drive and blower, set the  
throttle to “midway” position. Push in on the  
PTO switch to the “STOP” position to stop the  
cutting blades and blower. The cutting blades will  
require a slightly longer amount of time to come  
to a complete stop when the blower is installed  
on the deck.  
10  
 
     
Operation  
3. To remove the bags, shut off deck drive, stop  
the engine and wait for all moving parts to stop.  
Open the hood and remove the bags by lifting up  
on the rear of the bag, then unhooking the front  
clip. Empty bags by inverting them.  
4. Reinstall bags, close and latch the hood before  
continuing mowing.  
Tips for mowing conditions:  
• When mowing in areas with sandy soil, use  
low lift blades on the cutting deck and higher  
cutting heights to minimize wear on the blower  
components.  
• When mowing in wet conditions, such as just after  
a rain or in heavy dew, use low lift blades on the  
cutting deck to minimize plugging of the blower.  
Figure 5  
4. Hairpin  
1. Hood  
• Maintaining a ground speed that does not pull  
down the engine RPM will allow for the highest  
productivity and best quality of cut. Bogging the  
engine RPM down by going too fast will cause  
plugging and quality of cut issues.  
2. Blower  
3. Tube  
5. Clevis Pin  
6. Bag  
3. Remove the belt cover by loosening the knobs  
(see Figure 6).  
• When the bags get full, the sound of the blower  
will change and there will be slight blowout from  
the front right corner of the deck. Emptying the  
bags at this point will minimize the potential for  
the tube to plug.  
For units below SN 600,000: Anti-blowout  
kits are available for leaf collection. They help  
to prevent “chasing” the leaves. To reduce  
“plowing” leaves, raise the deck slightly.  
On Triton: Raise front adjustable baffle to  
reduce plowing. Lowering front adjustable baffle  
may prevent “chasing”. Match discharge opening  
to Ultra Vac intake for best performance.  
Bagger Removal for Side Discharge  
Figure 6  
1. Chute Pivot Pin  
2. Knob  
3. Discharge Chute  
5. Belt  
6. Belt Cover  
7. Deck Sheave  
1. Shut off the deck drive, stop engine and wait for  
all moving parts to stop. Remove key.  
4. Hairpin  
2. Remove the discharge tube by releasing the  
latches at the blower. Slide the tube off the blower  
outlet and remove the upper end from the hood.  
11  
 
 
Operation  
8. Remove the hair pins and clevis pins holding the  
hood assembly to the mount weldment.  
CAUTION  
The deck sheave will become very hot.  
Touching a hot deck sheave can cause severe  
burns.  
9. Lift the bag and hood assembly off the mount.  
10. For units with a 2 post ROPS installed:  
Remove the hairpins and lift the front weight off  
of the mount plates (see Figure 8).  
Allow the deck sheave to cool completely  
before removing the belt.  
4. Pull the idler release handle and remove the belt  
from the upper groove of the deck sheave.  
5. Unlatch the front end of the blower. Pivot the  
blower back and lift it off the deck.  
6. Install the discharge chute using the chute pivot  
pin and hairpin (see Figure 7).  
Figure 8  
1. Weight  
2. Hairpin  
Note: The portions of the Ultra Vac bagger that  
are not bolted to the mower are designed to be  
installed or removed in their entirety. Do Not  
operate the mower with only a portion of the  
Ultra Vac installed.  
11. The machine can now be used for side discharge  
mowing.  
Figure 7  
Bagger Installation for Bagging  
Viewed from the right side  
1. Stop engine, remove key, and wait for all moving  
parts to stop.  
1. Hairpin  
2. Chute Pivot Pin  
3. Discharge Chute  
2. Remove hairpin and chute pivot pin. Remove  
discharge chute. Pivot pin and hair pin may be  
stored in the pivot holes of the discharge chute  
during bagging operation.  
Note: Install chute with the tabs to the rear of  
the deck tabs as shown.  
3. Slide tube ends of hood assembly into the tubes  
of the mount weldment. Install two clevis pins  
through holes in tubes. Retain with two hair pins.  
WARNING  
An uncovered discharge opening will  
allow objects to be thrown in operator’s or  
bystander’s direction. Also, contact with  
blade could occur. Thrown objects or blade  
contact can cause serious injury or kill you  
or bystanders.  
4. Hang the two bag assemblies from the slots in the  
bagger upright. Close and latch hood.  
5. Remove the belt cover on the right side of the  
deck. Install the blower by inserting the mounting  
pin into the tube welded to the rear corner of the  
deck. Pivot the blower until the front pin engages  
the slot in the deck. Adjust the position of the  
front pin if necessary to engage the slot. Use the  
latches to lock the blower in this position.  
Never operate mower unless discharge  
deflector, or entire grass collection system, or  
mulch kit is installed.  
7. Re-install the plastic belt cover and tighten the  
knobs.  
6. Pull the idler release handle and install the belt in  
the upper groove of the deck sheave.  
12  
 
   
Operation  
7. Install the belt cover using the two knobs. Install  
the discharge tube assembly by slipping the upper  
end into the hood, then sliding the lower end over  
the blower discharge opening. Use the latches to  
retain the lower end to the blower.  
WARNING  
Loading a unit on a trailer or truck increases  
the possibility of backward tip-over.  
Backward tip-over could cause serious injury  
or death.  
8. For Units 600,000 and Higher with Triton  
Decks: Adjust position of dog leg baffle to match  
the intake of the Ultra Vac blower baffle adjusted  
too wide may allow objects to be thrown from  
under deck. Baffle adjusted too narrow may cause  
plugging issues.  
• Use extreme caution when operating a  
unit on a ramp.  
• Use only a single, full width ramp; Do  
Not use individual ramps for each side  
of the unit.  
For units with a 2 post ROPS installed: Install  
the weight.  
• If individual ramps must be used, use  
enough ramps to create an unbroken  
ramp surface wider than the unit.  
Note: The portions of the Ultra Vac bagger that  
are not bolted to the mower are designed to be  
installed or removed in their entirety. Do Not  
operate the mower with only a portion of the  
Ultra Vac installed.  
• Do Not exceed a 15° angle between ramp  
and ground or between ramp and trailer  
or truck.  
• Avoid sudden acceleration while driving  
unit up a ramp to avoid tipping backward.  
Transporting  
• Avoid sudden deceleration while backing  
unit down a ramp to avoid tipping  
backward.  
Transporting a Unit  
Use a heavy-duty trailer or truck to transport the  
machine. Lock brake and block wheels. Securely  
fasten the machine to the trailer or truck with straps,  
chains, cable, or ropes. Be sure that the trailer or truck  
has all necessary lighting and marking as required by  
law. Secure a trailer with a safety chain.  
Loading a Unit  
Empty grass bags before attempting to load  
unit on trailer or truck. Use extreme caution when  
loading units on trailers or trucks. One full width  
ramp that is wide enough to extend beyond the rear  
tires is recommended instead of individual ramps for  
each side of the unit. The lower rear section of the  
tractor frame extends back between the rear wheels  
and serves as a stop for tipping backward. Having  
a full width ramp provides a surface for the frame  
members to contact if the unit starts to tip backward.  
If it is not possible to use one full width ramp, use  
enough individual ramps to simulate a full width  
continuous ramp.  
CAUTION  
This unit does not have proper turn  
signals, lights, reflective markings, or a  
slow moving vehicle emblem. Driving on a  
street or roadway without such equipment  
is dangerous and can lead to accidents  
causing personal injury. Driving on a street  
or roadway without such equipment may also  
be a violation of State laws and the operator  
may be subject to traffic tickets and/or fines.  
Ramp should be long enough so that the angles  
between the ramp and the ground and the ramp and  
the trailer or truck do not exceed 15°. A steeper angle  
may cause mower deck components to get caught as  
the unit moves from ramp to trailer or truck. Steeper  
angles may also cause the unit to tip backward. If  
loading on or near a slope, position the trailer or  
truck so it is on the down side of the slope and the  
ramp extends up the slope. This will minimize the  
Do Not drive a unit on a public street or  
roadway.  
13  
 
 
Operation  
ramp angle. The trailer or truck should be as level  
as possible.  
Important: Do Not attempt to turn the unit  
while on the ramp, you may lose control and  
drive off the side.  
Avoid sudden acceleration when driving up a ramp  
and sudden deceleration when backing down a ramp.  
Both maneuvers can cause the unit to tip backward.  
14  
 
Maintenance  
Maintenance  
Note: Determine the left and right sides of the machine from the normal operating position.  
WARNING  
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.  
The engine can become very hot. Touching  
a hot engine can cause severe burns.  
Allow the engine to cool completely before  
service or making repairs around the engine  
area.  
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 the blower housing/impeller.  
• Check condition of bags.  
• Clean muffler and rear frame area.  
Before each use or daily  
• Clean rear screen in the hood.  
• Grease idler bushings.  
Every 25 hours  
Every 50 hours  
• Inspect the belt position on the idler arm.  
• Check condition of belt.  
• Clean blower.  
Yearly or before storage  
Periodic Maintenance  
Check Condition of Bags  
Service Interval: Before each use or daily  
Check Blower  
Housing/Impeller  
1. Stop engine, wait for all moving parts to stop, and  
remove key. Engage parking brake.  
2. Inspect the bags for wear, tears, or damage.  
Service Interval: Before each use or daily  
1. Stop engine, wait for all moving parts to stop, and  
remove key. Engage parking brake.  
WARNING  
Under normal use the bag will deteriorate  
and wear. Objects could exit a worn bag  
at high speeds. Thrown objects can cause  
serious injury or kill you or bystanders.  
2. Inspect for wear or damage daily. Replace or  
repair worn parts as needed  
Note: When mowing in areas with sandy soil,  
use low lift blades on the cutting deck and higher  
cutting heights to minimize wear on the blower  
components.  
Check bag frequently for tears and holes.  
Replace worn bag.  
15  
 
       
Maintenance  
Lubricate Grease Fittings  
Check Condition of Belt  
Note: See chart for service intervals.  
Service Interval: Every 50 hours  
1. Stop engine, wait for all moving parts to stop, and  
remove key. Engage parking brake.  
1. Stop engine, wait for all moving parts to stop, and  
remove key. Engage parking brake.  
2. Lubricate fittings with NGLI grade #2  
multi-purpose gun grease.  
2. Inspect the belt for damage or wear. Replace belt  
with one of the following:  
Refer to the following chart for fitting locations  
and lubrication schedule.  
Part No.  
1-653332  
1-653438  
1-653333  
103-0866  
1-653438  
109-1242  
Deck  
44 inch  
46 inch  
48 inch  
50 inch  
52 inch  
56 inch  
Lubrication Chart  
Fitting  
Locations  
Initial  
Pumps  
Number of  
Places  
Service  
Interval  
1–2  
1
25 Hours  
1. Idler  
Bushings  
3. To replace belt, remove the belt guide on the  
blower.  
Inspect Belt Position on Idler  
Arm  
4. Install the belt (from the Drive Kit) onto the  
Blower Assembly as shown in Figure 9.  
Service Interval: Every 50 hours  
The idler arm may become bent during use or  
transport. A bent idler arm could cause the belt to  
jump off of the idler and be damaged.  
1. Make sure the belt cover is installed and run the  
blower for one to two minutes.  
2. Shut off the deck drive, stop engine, wait for  
all moving parts to stop, and remove key.  
Engage parking brake. Remove the belt cover and  
check to make sure that the belt is riding near the  
center of the flat idler on the idler arm.  
Figure 9  
View from Top of Blower  
1. Spring Loaded Idler  
2. Impeller Sheave  
3. Fixed Idler  
4. Belt Guide  
5. Deck Sheave  
3. If the belt is not riding near the center of the  
idler, remove the blower, and bend the idler arm  
slightly.  
4. Reinstall the blower and belt cover and repeat  
steps 1 through 3 until the belt is positioned near  
the center of the idler.  
5. Reinstall the belt guide removed previously.  
16  
 
         
Maintenance  
Cleaning  
Clean Muffler and Rear  
Frame Area  
Service Interval: Before each use or daily  
Stop engine, wait for all moving parts to stop, and  
remove key. Engage parking brake.  
WARNING  
Operating engine parts, especially the  
muffler, become extremely hot. Severe burns  
can occur on contact and debris, such as  
leaves, grass, brush, etc. can catch fire.  
• Allow engine parts, especially the muffler,  
to cool before touching.  
• Remove accumulated debris from muffler  
and engine area.  
• Install and maintain in working order a  
spark arrester before using equipment  
on forest-covered, grass-covered,  
brush-covered unimproved land.  
Clean Rear Screen In Hood  
Service Interval: Before each use or daily  
1. Stop engine, wait for all moving parts to stop, and  
remove key. Engage parking brake.  
2. Open hood and remove clippings that are stuck  
to the screen.  
Clean Blower  
Service Interval: Yearly or before storage  
Grass build up may cause problems with the impeller  
when the unit is put back into operation.  
1. Stop engine, wait for all moving parts to stop, and  
remove key. Engage parking brake.  
2. Remove grass buildup from around the impeller  
before placing it in storage.  
17  
 
       
Troubleshooting  
Troubleshooting  
Important: It is essential that all operator safety mechanisms be connected and in proper operating  
condition prior to mower use.  
When a problem occurs, do not overlook the simple causes. For example: starting problems could be caused  
by an empty fuel tank.  
The following table lists some of the common causes of trouble. Do Not attempt to service or replace major  
items or any items that call for special timing or adjustment procedures (such as valves, governor, etc.). Have  
this work done by your Engine Service Dealer.  
Note: When disconnecting electrical connectors Do Not pull on the wires to separate the connectors.  
Problem  
Abnormal vibration.  
Possible Cause  
Corrective Action  
1. Install new cutting blade(s).  
1. Cutting blade(s) is/are bent or unbalanced.  
2. Blade mounting bolt is loose.  
3. Loose blower pulley or pulley assembly.  
4. Blower impeller blades are bent.  
2. Tighten the blade mounting bolt.  
3. Tighten the appropriate pulley.  
4. Contact an Authorized Service Dealer.  
Blower drive belt snaps or breaks frequently.  
Excessive grass blowout from the deck.  
1. Idler arm is out of alignment.  
1. Correct the alignment of the idler arm.  
1. Dump more frequently.  
1. Bags are full.  
2. Plugged screen in bagger hood.  
2. Remove debris, leaves or grass clippings  
from the screen.  
3. Ground speed is too fast.  
4. Blower belt is worn, loose, or broken.  
5. Plugged tube or blower.  
6. Conditions are dry.  
3. Drive slower at full throttle.  
4. Install new blower belt.  
5. Locate and remove plugged debris.  
6. Use lower lift blade.  
Blower and tubes plug too frequently.  
1. Bags are too full.  
1. Dump more frequently  
2. Ground speed is too fast.  
3. Grass is too wet.  
2. Drive slower at full throttle.  
3. Cut grass when it is dry.  
4. Grass is too long.  
4. Cut grass more frequently or at higher cut  
height.  
5. Plugged screen in bagger hood.  
5. Remove debris, leaves, or grass clippings  
from the screen.  
6. Blower drive belt is worn, loose, or  
broken.  
6. Install new belt.  
7. Blower is plugged.  
7. Use low lift blades in wet conditions.  
Blower impeller does not spin freely.  
Plowing leaves.  
1. Plugged blower.  
1. Remove debris, leaves, or grass clippings  
from the blower impeller.  
2. Impeller not aligned.  
1. Deck is too low.  
2. Contact an Authorized Service Dealer.  
1. LHP below S/N 600,000:  
Raise the deck slightly.  
Triton: Raise the front adjustable  
baffle.  
Chasing leaves.  
1. Blowout from deck.  
1. LHP below S/N 600,000: Install  
an anti-blowout kit–contact  
an Authorized Service Dealer.  
Triton: Lower the front adjustable  
baffle. Match discharge opening to Ultra  
Vac intake.  
Blower components show signs of wear  
and/or air cleaners and cooling fins are dirty.  
1. Sand or dry conditions.  
1. Use low lift blades on the cutting  
deck and higher cutting heights.  
Clean air cleaners and cooling fins  
frequently.  
18  
 
 
Exmark Commercial Attachments and Accessories  
1Year 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 one year.  
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.  
Warranty Exceptions  
• Bags, Belts and Tires  
Warranty Period  
90 days  
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.  
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 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.  
• Any claims for lost revenue, lost profit or additional cost as  
a result of a claim of breach of warranty.  
• Attorney's fees.  
No Claim of breach of warranty shall be cause for cancellation  
or rescission of the contract of sale of any Exmark attachment  
or accessory.  
All warranty work must be performed by an authorized  
Exmark Service Dealer using Exmark approved replacement  
parts.  
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.  
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.  
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.  
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.  
This warranty gives you specific legal rights, and you may  
also have other rights which vary from state to state.  
If for any reason you are dissatisfied with the Service Dealer’s  
analysis or with the assistance provided, contact us at:  
Exmark Customer Service Department  
The Exmark Warranty Company  
2101 Ashland Avenue  
Beatrice, NE 68310  
402-223-6375 or  
G4500-433_B  
19  
 
Notes:  
20  
 
Notes:  
21  
 
Service Record  
Date:  
Description of Work Done:  
Service Done By:  
22  
 
Figure 10  
This page may be copied for personal use.  
1. The maximum slope you can safely operate the machine on is 15 degrees. Use the slope indicator to determine the  
degree of slope of hills before operating. Do Not operate this machine on a slope greater than 15 degrees. Fold  
along the appropriate line to match the recommended slope.  
2. Align this edge with a vertical surface, a tree, building, fence pole, etc.  
3. Example of how to compare slope with folded edge.  
23  
 
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.  
© 2009 Exmark Mfg. Co., Inc.  
Industrial Park Box 808  
Beatrice, NE 68310  
Part No. 4500-599 Rev. A  
(402) 223-6300  
Fax (402) 223-5489  
Printed in the USA  
All Rights Reserved  
 

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