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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.

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

Possible Cause

Corrective Action

1. Cutting blade(s) is/are bent or unbalanced.

1. Install new cutting blade(s).

2. Blade mounting bolt is loose.

2. Tighten the blade mounting bolt.

3. Loose blower pulley or pulley assembly.

3. Tighten the appropriate pulley.

Abnormal vibration.

4. Blower impeller blades are bent.

4. Contact an Authorized Service Dealer.

Blower drive belt snaps or breaks frequently.

1. Idler arm is out of alignment.

1. Correct the alignment of the idler arm.

1. Hopper is full.

1. Dump more frequently.

2. Plugged screen in bagger hopper.

2. Remove debris, leaves or grass clippings

from the screen.

3. Ground speed is too fast.

3. Drive slower at full throttle.

4. Blower belt is worn, loose, or broken.

4. Install new blower belt.

5. Plugged tube or blower.

5. Locate and remove plugged debris.

Excessive grass blowout from the deck.

6. Conditions are dry.

6. Use lower lift blade.

1. Hopper is too full.

1. Dump more frequently

2. Ground speed is too fast.

2. Drive slower at full throttle.

3. Grass is too wet.

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 hopper.

5. Remove debris, leaves, or grass clippings

from the screen.

6. Blower drive belt is worn, loose, or

broken.

6. Install new belt.

Blower and tubes plug too frequently.

7. Blower is plugged.

7. Use low lift blades in wet conditions.

1. Plugged blower.

1. Remove debris, leaves, or grass clippings

from the blower impeller.

Blower impeller does not spin freely.

2. Impeller not aligned.

2. Contact an Authorized Service Dealer.

Plowing leaves.

1. Deck is too low.

1. Raise the deck slightly.

1. Blowout from deck.

1. Check for clogged tubes.

Chasing leaves.

2. Hopper is full.

2. Dump more frequently.

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.

26

 

Summary of Contents for ULTRAVAC LZUVQD11

Page 1: ...N SYSTEM LZUVQD7 LZUVQD11 For UltraVac Serial Nos 406 294 345 Higher To fit Lazer Z Units Serial Nos 790 000 Higher 7 Bushel Fits units with 48 or 52 inch deck 11 Bushel Fits units with 60 or 72 inch deck Part No 4504 776 Rev A ...

Page 2: ...ts products at any time without incurring any obligation to make such changes to products manufactured previously Exmark or its distributors and dealers accept no responsibility for variations which may be evident in the actual specifications of its products and the statements and descriptions contained in this publication 2019 Exmark Mfg Co Inc 2101 Ashland Ave Beatrice NE 68310 2 Contact us at w...

Page 3: ...on such as safety tips training materials and Operator s manuals 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 i...

Page 4: ...ration 18 Maintenance 19 Maintenance Safety 19 Recommended Maintenance Schedule s 19 Periodic Maintenance 20 Check Blower Housing Impeller 20 Check Door Cloth Mesh 20 Check Exhaust Diverter 20 Lubricate Grease Fittings 20 Check Condition of Belt 21 Adjustments 22 Adjusting the Blower Drive Belt Position 22 Adjusting the Door Linkage 22 Cleaning 24 Clean Muffler and Rear Frame Area 24 Clean Rear Sc...

Page 5: ...utating hands and feet and of throwing objects Exmark designed and tested this machine to offer reasonably safe service however failure to comply with safety instructions may result in injury or death Read understand and follow all instructions and warnings in the mower and UltraVac Operator s Manuals and other training material on the machine engine and attachments All operators and mechanics sho...

Page 6: ...n dry surface Smooth to remove any air bubbles Familiarize yourself with the following safety signs and instruction labels They are critical to the safe operation of your Exmark commercial mower decal106 5517 106 5517 1 Warning do not touch the hot surface decal112 9028 112 9028 1 Warning stay away from moving parts keep all guards and shields in place decal126 4659 126 4659 1 Warning Hot pulley a...

Page 7: ...ller Rotating Blades hazard Keep hands away from moving parts Keep all safety devices in place and working Do Not reach into blower unless rotation indicator has stopped decal133 8061 133 8061 decal126 4584 126 4584 1 Impeller Rotating Blades hazard Keep hands away from moving parts Keep all safety devices in place and working Do Not reach into blower unless rotation indicator has stopped Disengag...

Page 8: ... 172 1 cm 11 Bushel w UltraVac Lazer Z w 60 inch Deck 75 00 inches 190 5 cm Lazer Z w 72 inch Deck 87 25 inches 221 6 cm Overall Length 7 Bushel w UltraVac Lazer Z w 48 inch Deck 102 00 inches 259 1 cm Lazer Z w 52 inch Deck 102 00 inches 259 1 cm 11 Bushel w UltraVac Lazer Z w 60 inch Deck 106 50 inches 270 5 cm Lazer Z w 72 inch Deck 109 50 inches 278 1 cm Curb Weight 7 Bushel UltraVac Weight Fo...

Page 9: ...ing Brake procedure in the Maintenance section of the tractor Operator s manual Before Operation Before Operation Safety General Safety 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 Wear appropriate personal protective equipment such as safety glasses substantial slip resistant footwear a...

Page 10: ... place and working properly 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 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 Never operate mower unless discharge deflector entire grass collection...

Page 11: ...o empty the hopper first disengage the PTO Lift up on the handle to open the door and empty the hopper Important Do Not transport the machine with the hopper full Empty the hopper before attempting to load machine on trailer or truck This will reduce the chance of rearward tip up 4 Close and latch the door before continuing mowing Do Not engage the cutting blades while the door is in the open posi...

Page 12: ...ll become very hot Touching a hot deck sheave can cause severe burns Allow the deck sheave to cool completely before removing the belt 5 Pull the idler release handle and remove the belt from the upper groove of the deck sheave 6 Unlatch the front end of the blower Pivot the blower back and lift it off the deck g032035 Figure 7 1 Blower latch 2 Pivot the blower away from the deck 7 Install the dis...

Page 13: ...ly towards the unit and pull the hairpins and mount pins from frame mount barrel located on each side of the frame legs WARNING When the mount pins have been removed the hopper assembly may fall A falling hopper assembly may cause injury Use care when the mount pins are removed and if necessary use assistance when lowering the hopper assembly to the ground B If necessary use assistance and careful...

Page 14: ...wn as shown in Figure 10 g007997 Figure 10 1 Lower mount bar 2 Frame notch Note For 7 Bushel Units Make sure the handle is unfolded before installing the hopper assembly 4 Remove the hairpin from the mount pin and pull the mount pin out of the frame mount barrel 5 Pick up the frame legs and hook the notch onto the lower mount bar see Figure 10 6 Lift the hopper assembly and pivot it upward toward ...

Page 15: ...he belt cover on the right side of the deck 15 Mount the blower on the deck by inserting the mounting pin into the tube welded to the rear corner of the deck see Figure 13 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 latch to lock the blower in this position Adjust the tension on the latch to hold the...

Page 16: ...groove of the top spindle sheave The belt should be routed as shown in Figure 15 g007017 Figure 15 Small Decks View from Top of Blower 1 Spring loaded idler 4 Belt guide 2 Impeller sheave 5 Deck sheave 3 Fixed idler For Large Decks Pull the spring loaded idler back and slip the belt over the top deck sheave g009311 Figure 16 Large Decks View from Top of Blower 1 Impeller sheave 3 Spring loaded idl...

Page 17: ...s three 10 washers and three 10 24 nyloc nuts The screw head should be installed to the inside of the tube to provide minimum obstruction to flow Make sure that the upper and the lower ends are oriented properly as the tubes are assembled Parting lines should roughly be lined up g007028 Figure 20 1 Drill the holes here 28 Slide the lower end of the tube assembly over the blower outlet and align th...

Page 18: ...ght is clamped securely to the caster arm g032038 Figure 22 1 Clevis pin 3 Hairpin 2 Knob 4 Caster weight After Operation General Safety Park machine on level ground disengage drives set parking brake stop engine remove key or disconnect spark plug wire Wait for all movement to stop and allow the machine to cool before adjusting cleaning repairing or storing Never allow untrained personnel to serv...

Page 19: ...h the manufacturer s recommended parts when necessary WARNING Removal or modification of original equipment parts and or accessories may alter the warranty controllability and safety of the machine Unauthorized modifications to the original equipment or failure to use original Exmark parts could lead to serious injury or death Unauthorized changes to the machine engine fuel or venting system may v...

Page 20: ...ous injury or kill you or bystanders Check cloth mesh frequently for tears and holes Replace worn cloth mesh Check Exhaust Diverter Service Interval Before each use or daily CAUTION The exhaust diverter is hot Touching a hot exhaust diverter can cause severe burns Allow the exhaust diverter to cool completely before performing maintenance 1 Stop engine wait for all moving parts to stop and remove ...

Page 21: ...0 hours All Units 1 Stop engine wait for all moving parts to stop and remove key Engage parking brake 2 Inspect the belt for damage or wear Replace belt with one of the following Deck Part No 48 inch 1 653333 52 inch 1 653438 60 inch 103 0866 72 inch 103 0867 21 ...

Page 22: ...s not riding near the center of the idler remove the blower and bend the idler arm slightly 6 Reinstall the blower and belt cover and perform steps 3 5 again to verify belt position Adjusting the Door Linkage 7 Bushel Unit 1 If the door does not close properly adjust the rods as shown in Figure 23 Shorten the rod to increase over center force Lengthen the rod to reduce Adjust the rods on both side...

Page 23: ...force With the door closed both links should be slightly tight to minimize rattling 2 Door opening After adjusting the hinge links for door closing the handle link can be adjusted to obtain maximum door opening see Figure 24 Lengthen the link to open the door farther Shorten the link to open the door less The maximum door opening is limited by the contacting arm hitting the stop This stop is non a...

Page 24: ...uching Remove accumulated debris from muffler exhaust diverter and engine area Clean Rear Screen In Hopper 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 door 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 impelle...

Page 25: ...lt from the handle bracket and rotate the handle bracket and rotate the handle inward g007995 Figure 25 7 Bushel Unit Only 1 Knob and carriage bolt 3 Handle 2 Rotate inward When storing the 11 Bushel unit either unlatch or remove the handle entirely from the unit see step 9 in the Collection System Removal for Side Discharge section in Operation 25 ...

Page 26: ...opper 2 Remove debris leaves or grass clippings from the screen 3 Ground speed is too fast 3 Drive slower at full throttle 4 Blower belt is worn loose or broken 4 Install new blower belt 5 Plugged tube or blower 5 Locate and remove plugged debris Excessive grass blowout from the deck 6 Conditions are dry 6 Use lower lift blade 1 Hopper is too full 1 Dump more frequently 2 Ground speed is too fast ...

Page 27: ...estaurants grocery stores hotels schools and hospitals and on a wide variety of products Additionally some online and mail order retailers provide Prop 65 warnings on their websites or in catalogs How do the California warnings compare to federal limits Prop 65 standards are often more stringent than federal and international standards There are various substances that require a Prop 65 warning at...

Page 28: ...CCESSORIES AND OPTIONS CUSTOM RIDE SEAT SUSPENSION SYSTEM DUAL TAIL WHEEL FLOOR PAN EXTENDER HITCH KIT LIGHT KIT MICRO MULCH SYSTEM ROLL OVER PROTECTION SYSTEM ROPS SNOW BLADE SNOWBLOWER SUN SHADE TRASH CONTAINER ULTRA VAC COLLECTION SYSTEM ULTRA VAC QUICK DISPOSAL SYSTEM WEATHER CAB Some accessories and options not available for some models Place Model No and Serial No Label Here Included in the ...

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