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40

TROUBLESHOOTING

While normal care and regular maintenance will extend
the life of your equipment, prolonged or constant use
may eventually require that service be performed to allow
it to continue operating properly.  The troubleshooting
guide below lists the most common problems, their
causes and remedies.

If you prefer, all of these procedures can be performed
by your local authorized dealer.  

WARNING

To avoid serious injury, perform maintenance on
the rider or mower only when the engine is
stopped, the ground speed levers are set to
START/PARK, and the parking brake lever is set to
ENGAGE. 
Always remove the ignition key, disconnect the
spark plug wire and fasten it away from the plug
before beginning the maintenance, to prevent
accidental starting of the engine.

Troubleshooting the Rider

PROBLEM

CAUSE

REMEDY

Engine will
not turnover.

Ignition switch not turned fully to START position. Turn ignition switch fully to START position.

Ground speed levers not set to START/PARK.

Set to START/PARK.

Mower blade switch in ON position.

Place in OFF position.

Parking brake lever in DISENGAGE position.

Set to ENGAGE position.

Battery terminals require cleaning. 

Clean the battery terminals

Battery discharged or dead.

Recharge or replace.

Wiring loose or broken; connector separated. 

Visually check wiring & replace broken or frayed
wires. Tighten loose connections.

Safety interlock switch faulty. 

Replace. Contact your local authorized dealer.  

Solenoid or starter motor faulty.

Replace.  Contact your local authorized dealer.

Engine will
turnover but
will not start.

Engine is cold; choke not in CLOSED position.

Move choke to CLOSED position.

Engine is warm; choke not in OPEN position.

Move choke to OPEN position.

Engine flooded. 

Set choke to OPEN position when cranking engine.

Out of fuel. 

Allow engine to cool, then refill the fuel tank.

Fuel is old or stale, or water in fuel.

Drain fuel & replace with fresh fuel. Contact your
local authorized dealer.

Spark plug(s) faulty, fouled or incorrectly gapped. Clean and gap or replace. 

Safety interlock switch faulty. 

Replace. Contact your local authorized dealer.  

Engine starts
hard or runs
poorly.

Air filter plugged

Service pre-cleaner and/or replace air filter
element.

Choke not set to CLOSED position when
cranking the engine, OR choke not set to OPEN
after engine starts.  

Set choke to CLOSED when cranking.  Set choke
to OPEN when engine is running.  A warm engine
may not require choking.

Spark plug faulty, fouled, or incorrectly gapped.

Clean and gap or replace.  

Engine
knocks.

Low oil level. 

Check/add oil as required.

Using wrong grade oil. 

See "Change Engine Oil" in the Maintenance
Section.

Excessive oil
consumption.

Engine running too hot.

Clean engine cooling fins, blower screen and air
cleaner.

Using wrong weight oil.

See "Change Engine Oil" in the Maintenance
Section.

Too much oil in crankcase.

Drain excess oil.

Engine
exhaust is
black.

Dirty air filter or pre-cleaner, or both. 

Service or replace as required.  See Maintenance
Section.

Choke set to CLOSED when engine is running.

Set choke to OPEN as soon as engine starts.

Not 

for  

Reproduction

Summary of Contents for CSC18533

Page 1: ... 7800612 Simplicity Axion Model ZT2142 21HP w 42 Mower 7800617 Simplicity Axion Model CZT2142 21HP w 42 Mower California Model 7800615 Simplicity Axion Model ZT2142 21HP w 42 Mower Australia Model 7800621 Snapper 150Z Model SC2142 21HP w 42 Mower 7800626 Snapper 150Z Model CSC2142 21HP w 42 Mower California Model 7800624 Snapper 150Z Model SC2142 21HP w 42 Mower Australia Model 7800630 Snapper 150...

Page 2: ...N o t f o r R e p r o d u c t i o n ...

Page 3: ...om Engine Cooling Areas 19 Check Tire Pressure 19 Lubrication 20 Clean Deck Check Replace Mower Blades 21 Clean the Battery Cables 24 Check Rider Safety System 24 Check Adjust PTO Clutch 25 Engine Maintenance Check Engine Oil Level 26 Change Engine Oil 26 Change Engine Oil Filter 26 Service Air Filter Pre Cleaner 27 Replace Spark Plug 29 Service Adjustments Ground Speed Control Lever Adjustment 30...

Page 4: ...twear and trousers Never operate when barefoot or wearing sandals 23 Before using always visually check that the blades and blade hardware are present intact and secure Replace worn or damaged parts 24 Disengage attachments before refueling removing an attachment making adjustments unless the adjustment can be made from the operator s position 25 When the machine is parked stored or left unattende...

Page 5: ...o stop or change speeds while on the slope 4 Do not mow on wet grass Tires may loose traction 5 Avoid starting stopping or turning on a slope If tires lose traction i e machine stops forward motion on a slope disengage the blade s PTO and drive slowly off the slope 6 Keep all movement on slopes slow and gradual Do not make sudden changes in speed or direction which could cause the machine to rollo...

Page 6: ...duce speed on slopes 1 Fold this page along dotted line indicated above 2 Hold page before you so that its left edge is vertically parallel to a tree trunk or other upright structure 3 Sight across the fold in the direction of hill slope you want to measure 4 Compare the angle of the fold with the slope of the hill ONLY RIDE UP AND DOWN HILL NOT ACROSS HILL FOLD ALONG DOTTED LINE THIS IS A 10 DEGR...

Page 7: ...as necessary 11 Do not remove the fuel filter when the engine is hot as spilled gasoline may ignite Do not spread fuel line clamps further than necessary Ensure clamps grip hoses firmly over the filter after installation 12 Do not use gasoline containing METHANOL gasohol containing more than 10 ETHANOL gasoline additives or white gas because engine fuel system damage could result 13 If the fuel ta...

Page 8: ...rt No 1734276 Decal Hot Surfaces Part No 1734273 Located on RH side Decal Transmission Release Part No 1734532 Located on rear frame Decal Control Panel Part No 7103082 DANGER Amputation Hazard 1704276 To avoid injury from rotating blades stay clear of deck edge DANGER Amputation and Thrown Objects Hazard 17 04 27 7 To avoid injury from rotating blades and thrown debris stay clear of deck edge and...

Page 9: ...s and engine serial numbers in the space provided for easy access The identification tag is located on the underside of the seat Tilt the seat forward to access the ID tag S A M P L E PRODUCT REFERENCE DATA Model Description Name Number Part Number Unit Serial Number Date Purchased ENGINE REFERENCE DATA Engine Make Engine Model Engine Type Spec Engine Code Serial Number N o t f o r R e p r o d u c...

Page 10: ... must be disengaged before operating the ground speed levers Engine Speed Control Choke The engine speed control choke controls the engine speed and choke Always set the engine speed to FAST for driving and mowing Move the engine speed control back to SLOW to decrease engine speed Move the engine speed control choke control to the CHOKE position for starting a cold engine A warm engine may not req...

Page 11: ...ades on and off To turn the mower blades ON pull the switch up To turn the mower blades OFF push the switch down Always set the engine speed control to FAST before turning the mower blades ON and while mowing Transmission Release Levers The transmission release levers deactivate the transmissions so that the unit can be pushed by hand See PUSHING THE UNIT BY HAND for operational information Fuel T...

Page 12: ...r could tip over injuring the operator or bystanders WARNING TRAILERS CHECKS BEFORE STARTING Check that the crankcase oil is filled to full mark on dipstick see CHECK ENGINE OIL in the Maintenance section Fill the fuel tank with fresh fuel FUEL RECOMMENDATIONS For daily operation Use only unleaded gasoline with a pump sticker octane rating of 87 or higher Gasohol up to 10 ethyl alcohol 90 unleaded...

Page 13: ...PARK positions to stop rider movement 2 Engage the parking brake 3 Turn off the mower blades by pushing the mower blade switch down to the OFF position 4 Move the engine speed control to SLOW position and turn the ignition switch to OFF Remove the key STARTING THE ENGINE 1 While sitting in the seat make sure the mower blade switch is OFF the ground speed control levers are locked in START PARK pos...

Page 14: ...WAYS operate at full throttle when mowing and turn slowly to prevent tire slippage and damage to your lawn We suggest you begin with the Smooth Travel procedure to the right and then advance through the forward reverse and turning maneuvers Forward Travel Practice Gradually move both ground speed control levers evenly FORWARD from neutral Slow down and repeat Reverse Travel Practice LOOK DOWN BEHI...

Page 15: ... As you become more familiar and experienced with operating the zero turn rider you will learn more maneuvers that will make your mowing time easier and more enjoyable Remember the more you practice the better your control of the rider will be Practice Turning Around a Corner While traveling forward allow one handle to gradually return back toward neutral Practice several times before mowing NOTE ...

Page 16: ...oth sides of the mower 11 Remove the front hitch rod C from the front hitch brackets 12 Slide the mower deck out from under the rider Installing the Mower Deck 1 Slide the mower deck under the right side of the rider Align the holes in the front hitch brackets and insert the front hitch rod C Figure 10 Secure with hair pin clip A 2 Connect the rear lift arms to the mower deck Secure with hair pin ...

Page 17: ...he hitch bracket 11 Slide the mower deck out from under the rider Installing the Mower Deck 1 Slide the mower deck under the right side of the rider Slide the mower forward and hook the front hitch rod C Figure 12 to the front mower deck hooks 2 Slide the mower deck backwards and connect the rear lift arms to the mower deck Secure with hair pin clips A 3 Insert the key into the ignition switch Tur...

Page 18: ...eck Repeat for both sides of mower 10 Remove hair pin clip B securing the front hitch rod C Separate the front hitch rod from the mower deck Repeat for both sides of mower 11 Slide the mower deck out from under the rider Installing the Mower Deck 1 Slide the mower deck under the right side of the rider Slide the mower forward and hook the front hitch rod C Figure 15 to the front mower deck hooks 2...

Page 19: ... Deck Check Replace Mower Blades Clean Battery Cables Check Rider Safety System Check Adjust PTO Clutch ENGINE MAINTENANCE 18 5 21HP Briggs Stratton 8 Hours or Daily 25 Hours or Every Season 50 Hours or Every Season 100 Hours or Every Season Yearly Check Engine Oil Level Service Air Pre Cleaner Change Oil Service Air Filter Change Oil Filter Clean Cooling Fins Replace Air Filter Replace Spark Plug...

Page 20: ...of the engine A Figure 17 exposed engine cooling fins and around the air filter assembly Also open the air filter cover B and remove any debris that has accumulated in the air filter compartment CHECK TIRE PRESSURE Service Interval 25 Hours Tire pressure should be checked periodically and maintained at the levels shown in Figure 18 Note that these pressures may differ slightly from the Max Inflati...

Page 21: ...mower arbors Use grease fittings when present Not all greases are compatible Use automotive type lithium grease Oil hydro linkage brake linkage mower deck height adjustment linkage ground speed control linkage Generally all moving metal parts should be oiled where contact is made with other parts Keep oil and grease off belts and pulleys Remember to wipe fittings and surfaces clean both before and...

Page 22: ...22 Figure 23 Lubricating Rider Figure 24 Lubricating Rider Figure 25 Lubricating Mower Lift N o t f o r R e p r o d u c t i o n ...

Page 23: ...e blade is not balanced continue to sharpen the heavy side until it balances 7 Reinstall the blade with the lift wings D Figure 30 E Figure 31 pointing up toward the mower deck as shown 8 Reinstall the hardware as noted in Figures 29 through 31 Use a wooden block to prevent blade rotation while tightening the hardware to the following torque 33 Blade 30 40 ft lbs 41 54 Nm 42 Blade 80 90 ft lbs 108...

Page 24: ...shers D Lift Wings A B C D Figure 29 Blade Installation 33 Deck A Blade B Blade Mounting Bolts C Lockwashers D Hex Nuts Figure 31 Blade Installation 52 Deck A 4x4 Wood Block B Spring Washer C Blade Capscrew D Lift Wings B D C A D C C B A A B C D N o t f o r R e p r o d u c t i o n ...

Page 25: ...Do not attempt to bypass safety switches and never tamper with safety devices Check their operation regularly Operational SAFETY Checks TEST 1 ENGINE SHOULD NOT CRANK IF Mower blades switch is ON OR Ground speed control levers are not in their START PARK positions OR Parking brake lever is in DISENGAGE position TEST 2 ENGINE SHOULD CRANK IF Mower blade switch is OFF AND Ground speed control levers...

Page 26: ... B Figure 33 until the rotor face and armature face just contacts the gauge 5 Check the windows for an equal amount of tension when the gauge is inserted and removed and make any necessary adjustments by tightening or loosening the adjustment nuts NOTE The actual air gap between the rotor and armature may vary even after performing the adjustment procedure This is due to dimensional variations on ...

Page 27: ...he engine off and allow it to cool from hot to warm 1 Clean the area around the dip stick C Figure 36 and oil drain tube A 2 Remove the oil drain plug A from the end of the oil drain tube Remove the dip stick C Allow ample time for complete drainage 3 Reinstall the oil drain plug A and route the hose next to the engine 4 Fill the crankcase with oil See CHECK ENGINE OIL LEVEL above 5 Start and run ...

Page 28: ...ure 37 or 38 and flip the latch away from the cover 2 Remove the cover B Remove the filter C Figure 38 and pre cleaner D 3 Install the pre cleaner D with the mesh side up Install the filter C as shown 4 Install the cover B Figure 38 making sure the tabs are inserted into their slots Secure with the latch A 1 2 3 Figure 37 Air Filter Assembly Briggs Stratton Single Cylinder Models A Air Filter Latc...

Page 29: ... or damage If the thin foam sleeve surrounding the filter is damaged replace the filer DO NOT oil the foam sleeve or cartridge If there is oil of heavy dirt on the cartridge replace it DO NOT use pressurized air or solvents to clean the filter cartridge Remove any dirt from the air filter housing 4 Replace the cartridge by aligning the hole of the cartridge with the air vent A Figure 41 5 Push the...

Page 30: ...orized Briggs Stratton Service Center remove combustion deposits from the cylinder cylinder head top of piston and around the valves Figure 43 Spark Plug Gapping Pre Cleaner Service NOTE Replace a worn or damaged pre cleaner 1 Figure 42 Wash the pre cleaner in liquid detergent and water 2 Squeeze the pre cleaner dry and saturate with engine oil Remove all excess oil by squeezing the pre cleaner in...

Page 31: ...If the rider veers to the right or left when the ground speed control levers are in the maximum forward position the top speed of the right lever can be balanced by turning the adjustment knob E Figure 44 Loosen the jam nut and turn the knob COUNTERCLOCKWISE to increase speed or CLOCKWISE to decrease speed Tighten the jam nut when complete CUTTING HEIGHT ADJUSTMENT To increase the mower cutting he...

Page 32: ...e such as a water heater electric motor or a lit cigarette Wear Protective Equipment Always wear gloves and safety glasses when handling the battery and battery cables BATTERY CHARGING A dead battery or one too weak to start the engine may be the result of a defect in the charging system or other electrical component If there is any doubt about the cause of the problem contact your local dealer If...

Page 33: ...so that it is pointing from side to side Figure 48 5 Measure the distance between the tips of the blade and the ground Figures 47 48 If there is more than 1 8 3mm difference between the measurements on each side proceed to step 6 If the difference is 1 8 3mm or less proceed to Front To Back Leveling 6 See Figure 49 Side to side leveling is accomplished using the threaded rods A Figure 49 and trunn...

Page 34: ...re pointing from side to side Figure 51 5 Measure the distance between the tips of the outside blades and the ground Figures 50 51 If there is more than 1 8 3mm difference between the measurements on each side proceed to step 6 If the difference is 1 8 3mm or less proceed to Front To Back Leveling 6 See Figure 52 Side to side leveling is accomplished using the threaded rods A and trunnion B on the...

Page 35: ...om the ground to front tip of blade and from ground to rear tip of blade Figures 53 Front tip should be 1 8 1 4 3 6 mm higher than rear tip If not proceed to step 2 2 The front mower hitch rod A Figure 54 is used to adjust front to back leveling To raise or lower the front of mower deck adjust the front jam nuts C on both sides of the hitch rod A to adjust the deck level Figure 54 Front to Back Le...

Page 36: ...5 Front tips should be 1 8 1 4 3 6 mm higher than rear tips If not proceed to step 2 2 The front mower hitch rod A Figure 56 is used to adjust front to back leveling To raise or lower the front of mower deck loosen the two rear jam nuts B on both sides of the hitch rod A Adjust the front jam nuts C on both sides of the hitch rod A to adjust the deck level When adjusted correctly tighten the rear j...

Page 37: ...speed control levers to START PARK and set the parking brake lever to ENGAGE Remove the key 2 Use the idler pulley arm C Figure 58 to release belt tension and remove the mower drive belt A from the PTO pulley E 3 Remove the belt from the remaining deck pulleys Note It is not necessary to remove the mower deck 4 Install the new belt A as shown in Figure 58 WARNING Before inspecting or servicing the...

Page 38: ... PORT 52 decks only NOTE The washout port allows you to connect a typical garden hose to the trim side L H of the mower deck to remove grass and debris from the underside This ensures proper and safe operation of the mower 1 Place the lawn tractor on a smooth level surface Figure 60 Mower Deck Washout Port A Quick Disconnect B Hose C Washout Port WARNING Before running the mower make sure the hose...

Page 39: ...sed if it is removed put in a cool dry place and fully charged about once a month If the battery is left in the unit disconnect the negative cable It is important to prevent gum deposits from forming in the essential fuel system parts such as the carburetor fuel filter fuel line and fuel tank during storage Also alcohol blended fuels called gasohol or using ethanol or methanol can attract moisture...

Page 40: ...olenoid or starter motor faulty Replace Contact your local authorized dealer Engine will turnover but will not start Engine is cold choke not in CLOSED position Move choke to CLOSED position Engine is warm choke not in OPEN position Move choke to OPEN position Engine flooded Set choke to OPEN position when cranking engine Out of fuel Allow engine to cool then refill the fuel tank Fuel is old or st...

Page 41: ...g with cut grass Cut grass with discharge pointing toward previously cut area Excessive mower vibration Blade mounting nuts are loose Torque as per instructions See Maintenance Section Mower blades arbors or pulleys are bent Check and replace as necessary Mower blades are out of balance Replace or balance blades See Maintenance Section Belt installed incorrectly Reinstall correctly Mower drive bel...

Page 42: ...code J1940 Small Engine Power Torque Rating Procedure and rating performance has been obtained and corrected in accordance with SAE J1995 Revision 2002 05 Torque values are derived at 3060 RPM horsepower values are derived at 3600 RPM Actual gross engine power will be lower and is affected by among other things ambient operating conditions and engine to engine variability Given both the wide array...

Page 43: ...ue values are also included For applicable manuals currently available for your model contact our Customer Publications Department at 877 249 6647 Have the information listed in the box at left available when phoning in your request Technical manuals can be downloaded from www simplicitymfg com www snapper com Engine Oil Touch Up Paint Grease Gun Kit 8 oz Grease Tube Tire Sealant Degrimer Degrease...

Page 44: ...44 NOTES N o t f o r R e p r o d u c t i o n ...

Page 45: ...45 NOTES N o t f o r R e p r o d u c t i o n ...

Page 46: ...er AERATING YOUR LAWN Consider aerating your lawn in spring Using an aerator to remove cores of soil from the lawn increases the speed of clipping decomposition and encourages deeper root growth by opening up the soil and permitting greater movement of water fertilizer and air TP 600 2136 03 UV SMA HOW HIGH TO MOW THE GRASS Cutting the grass too short causes weak thin grass plants which are easily...

Page 47: ...e grass is wet moist grass does not mulch well and clumps beneath the mower deck Note Always operate the engine at full throttle when mowing PROPER MOWING SPEED ENGINE SPEED GROUND SPEED Always operate the engine at full throttle when mowing If you hear the engine slowing down you are mowing too fast maintaining a slower ground speed will improve the cutting efficiency of the blades and prevents m...

Page 48: ... 53074 0997 www SimplicityMfg com Briggs Stratton Yard Power Products Group Copyright 2009 Briggs Stratton Power Products Group LLC Milwaukee WI USA All Rights Reserved PRODUCTS INC 535 Macon Street McDonough GA 30253 www Snapper com N o t f o r R e p r o d u c t i o n ...

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