Jonsered JNA1542A Owner'S Manual Download Page 1

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OWNER'S MANUAL

MODEL NO. LT15 (JNA1542A)
14.5 HP 42 Inch
Lawn Tractor

532175736 01.16.01 RH

PRINTED IN U.S.A.

Summary of Contents for JNA1542A

Page 1: ...OWNER S MANUAL MODEL NO LT15 JNA1542A 14 5 HP 42 Inch LawnTractor 532175736 01 16 01 RH PRINTED IN U S A ...

Page 2: ...facturer s recommendations for wheel weights or counterweights to improve stability Useextracarewithgrasscatchersorotherattachments These can change the stability of the machine Keep all movement on the slopes slow and gradual Do not make sudden changes in speed or direction Avoidstartingorstoppingonaslope Iftireslosetraction disengage the blades and proceed slowly straight down the slope DO NOT D...

Page 3: ...tires lose traction disengage the blades and proceed slowly straight down the slope If machine stops while going uphill disengage blades shift into reverse and back down slowly Do not turn on slopes unless necessary and then turn slowly and gradually downhill if possible Look for this symbol to point out im portant safety precautions It means CAUTION BECOMEALERT YOUR SAFETY IS INVOLVED CAUTION Ino...

Page 4: ...dtech nicians and the proper tools to service or repair this tractor Please read and retain this manual The instructions will enable you to assemble and maintain your tractor properly Always observe the SAFETY RULES CUSTOMER RESPONSIBILITIES Read and observe the safety rules Followaregularscheduleinmaintaining caringforand using your tractor Follow the instructions under Customer Responsibili ties...

Page 5: ...1 Hex Bolt 3 8 16 x 1 1 Lock washer 3 8 Steering Wheel Insert Steering Extension Shaft Steering Sleeve Steering Wheel Steering Wheel Adapter 1 Knob 1 Washer 17 32 x 1 3 16 x 12 Gauge Seat 2 Keys Keys Slope Sheet 1 Oil Drain Tube For Future Use CONTENTS OF HARDWARE PACK ...

Page 6: ...REMOVING TRACTOR FROM SKID ATTACH STEERING WHEEL See Fig 1 ASSEMBLE EXTENSION SHAFT AND BOOT Slide extension shaft onto lower steering shaft Align mountingholesinextensionandlowershaftsandinstall 5 16 hex bolt and locknut Tighten securely Place tabs of steering boot over tab slots in dash and push down to secure INSTALL STEERING WHEEL Position front wheels of the tractor so they are pointing strai...

Page 7: ...AKE position and hold Move gearshift lever to 1st gear Slowly release clutch brake pedal and slowly drive tractor off skid Apply brake to stop tractor set parking brake and place gearshift lever in neutral position Turn ignition key to OFF position Continue with the instructions that follow BATTERY BOX DOOR SEAT PAN LABEL TERMINAL TERMINAL SEAT PAN SHOULDER BOLT ADJUSTMENT KNOB FLAT WASHER SEAT FI...

Page 8: ... THE FOLLOWING IMPORTANT ITEMS 3 Engine oil is at proper level 3 Fuel tank is filled with fresh clean regular unleaded gasoline 3 Become familiar with all controls their location and function Operate them before you start the engine 3 Be sure brake system is in safe operating condition CHECK TIRE PRESSURE The tires on your tractor were overinflated at the factory for shipping purposes Correct tire...

Page 9: ...ARD FAST SLOW ENGINE ON ENGINE OFF OIL PRESSURE LIGHTS ON FUEL CHOKE MOWER HEIGHT PARKING BRAKE LOCKED UNLOCKED REVERSE NEUTRAL HIGH LOW ATTACHMENT CLUTCH ENGAGED MOWER LIFT DANGER KEEP HANDS AND FEET AWAY FREE WHEEL Automatic Models only OVER TEMP LIGHT PARKING BRAKE IGNITION ATTACHMENT CLUTCH DISENGAGED P KEEP AREA CLEAR SLOPE HAZARDS 15 15 15 SEE SAFETY RULES SECTION ...

Page 10: ... starting the engine PARKINGBRAKE Locksclutch brakepedalintothebrake position HEIGHTADJUSTMENTKNOB Usedtoadjustthemower cutting height GEARSHIFT LEVER Selects the speed and direction of the tractor ATTACHMENT LIFT LEVER Used to raise and lower the mower deck or other attachments mounted to your tractor LIFT LEVER PLUNGER Used to release attachment lift lever when changing its position IGNITION SWI...

Page 11: ...GAGED POSITION FIG 5 CLUTCH BRAKE PEDAL DRIVE POSITION STOPPING See Fig 5 MOWER BLADES To stop mower blades move attachment clutch lever to DISENGAGED position GROUNDDRIVE To stop ground drive depress clutch brake pedal into full BRAKE position Move gearshift lever to neutral N position ENGINE Move throttle control to slow position NOTE Failure to move throttle control to slow position and allowin...

Page 12: ...dandcauseyoutolosecontrolofyourtractor BEFORE STARTING THE ENGINE CHECK ENGINE OIL LEVEL The engine in your tractor has been shipped from the factory already filled with summer weight oil Check engine oil with tractor on level ground Remove oil fill cap dipstick and wipe clean reinsert the dipstick and screw cap tight wait for a few seconds remove and read oil level If necessary add oil until FULL...

Page 13: ...during the engine warm upperiod NOTE If at a high altitude above 3000 feet or in cold temperatures below 32 F the carburetor fuel mixture may need to be adjusted for best engine performance See TO ADJUST CARBURETOR in the Service and Adjustments section of this manual MOWING TIPS Mower should be properly leveled for best mowing performance See TO LEVEL MOWER HOUSING in the Service and Adjustments ...

Page 14: ...t bolt to 35 ft lbs maximum Do not overtighten 1 12 3 2 5 5 6 7 GENERAL RECOMMENDATIONS The warranty on this tractor does not cover items that have beensubjectedtooperatorabuseornegligence Toreceive full value from the warranty operator must maintain tractor as instructed in this manual Some adjustments will need to be made periodically to properly maintain your tractor All adjustments in the Serv...

Page 15: ...engine Whentheengineisrunningandtheattachmentclutchis engaged any attempt by the operator to leave the seat should shut off the engine Theattachmentclutchshouldneveroperateunlessthe operator is in the seat BLADE CARE Forbestresultsmowerbladesmustbekeptsharp Replace bent or damaged blades BLADE REMOVAL See Fig 9 Raise mower to highest position to allow access to blades Removehexbolt lockwasherandfl...

Page 16: ... of this manual CLEAN AIR SCREEN Air screen must be kept free of dirt and chaff to prevent enginedamagefromoverheating Cleanwithawirebrushor compressedairtoremovedirtandstubborndriedgumfibers ENGINE COOLING FINS See Fig 13 Remove any dust dirt or oil from engine cooling fins to preventenginedamagefromoverheating Remove oil fill cap dipstick Remove hex bolts from blower housing and lift housing off...

Page 17: ...ypositioned Immediately wipe up any spilled gasoline FIG 15 FUEL FILTER CLAMP CLAMP FOAM PRE CLEANER COVER KNOB COVER CARTRIDGE NUT FIG 14 PAPER CARTRIDGE BASE AIR FILTER See Fig 14 Yourenginewillnotrunproperlyusingadirtyairfilter Clean the foam pre cleaner after every 25 hours of operation or every season Service paper cartridge every 100 hours of operation or every season whichever occurs first ...

Page 18: ...pring slide collar off and push housing guide out of bracket Disconnect anti swaybar from chassis bracket by re movingretainerspring Disconnect suspension arms from rear deck brackets by removing retainer springs Disconnect front links from deck by removing retainer springs Raise lift lever to raise suspension arms Slide mower out from under tractor IMPORTANT IF AN ATTACHMENT OTHER THAN THE MOWER ...

Page 19: ...h other If adjustment is necessary make adjustment on one side of mower only To raise one side of mower tighten lift link adjustment nut on that side To lower one side of mower loosen lift link adjustment nut on that side NOTE Each full turn of adjustment nut will change mower height about 1 8 Recheck measurements after adjusting BOTTOM EDGE OF MOWER TO GROUND FIG 17 SUSPENSION ARM LIFT LINK ADJUS...

Page 20: ...ageparkingbrake Measuredistancebetweenbrakeoperatingarmandnut A on brake rod If distance is other than 1 1 2 loosen jam nut and turn nut A untildistancebecomes1 1 2 Retightenjamnut against nut A Road test tractor for proper stopping distance as stated above Readjust if necessary If stopping distance is still greater than six 6 feet in highest gear further maintenance is necessary Contact your near...

Page 21: ...wheel Position the gear shift lever in the neutral N position Tighten adjustment bolt securely NOTE Ifadditionalclearanceisneededtogettoadjustment bolt move mower deck height to the lowest position ADJUSTMENT BOLT NEUTRAL LOCK GATE GEARSHIFT LEVER FIG 24 TO START ENGINE WITH A WEAK BATTERY See Fig 26 CAUTION Lead acidbatteriesgenerate explosive gases Keep sparks flame and smoking materials away fr...

Page 22: ...ctor Grasp hood at sides tilt toward engine and lift off of tractor To replace reverse above procedure REPLACING BATTERY See Figs 27 and 28 CAUTION Do not short battery termi nals by allowing a wrench or any other object to contact both terminals at the same time Before connecting battery remove metal bracelets wristwatch bands rings etc Lift seat pan to raised position and open battery box door D...

Page 23: ...N BE DANGEROUS IF YOU THINK THE ENGINE GOVERNED HIGH SPEED NEEDS ADJUSTING CONTACT YOUR NEAREST AUTHORIZED SERVICE CENTER DEPARTMENT WHICH HAS PROPER EQUIPMENT AND EXPERIENCE TO MAKE ANY NECESSARY ADJUSTMENTS ENGINE CLAMP SCREW TO ADJUST THROTTLE CONTROL CABLE See Fig 30 The throttle control has been preset at the factory and adjustment should not be necessary Check adjustment as described below b...

Page 24: ...NG IN ESSENTIAL FUEL SYSTEM PARTS SUCH AS CARBURETOR FUEL FILTER FUEL HOSE OR TANK DURING STORAGE ALSO EXPERIENCE INDICATES THAT ALCOHOL BLENDED FUELS CALLED GASOHOL OR USING ETHANOL OR METHANOL CAN ATTRACT MOISTURE WHICH LEADS TO SEPARATION AND FORMATION OF ACIDS DURING STORAGE ACIDIC GAS CAN DAMAGE THE FUEL SYSTEM OF AN ENGINE WHILE IN STORAGE Drain the fuel tank Start the engine and let it run ...

Page 25: ...lty ignition switch 7 Check replace ignition switch 8 Faulty solenoid or starter 8 Check replace solenoid or starter 9 Faulty operator presence switch es 9 Contact an authorized service center department Engine clicks but will not 1 Weak or dead battery 1 Recharge or replace battery start 2 Corroded battery terminals 2 Clean battery terminals 3 Loose or damaged wiring 3 Check all wiring 4 Faulty s...

Page 26: ... Mower deck not level 4 Level mower deck 5 Low uneven tire air pressure 5 Check tires for proper air pressure 6 Worn bent or loose blade 6 Replace sharpen blade Tighten blade bolt 7 Buildup of grass leaves and trash under mower 7 Clean underside of mower housing 8 Mower drive belt worn 8 Replace mower drive belt 9 Blades improperly installed 9 Reinstall blades sharp edge down 10 Improper blades us...

Page 27: ...YOUR TRACTOR IS EQUIPPED WITH A SPECIAL ALTERNATOR SYSTEM THE LIGHTS ARE NOT CONNECTED TO THE BATTERY BUT HAVE THEIR OWN ELECTRICAL SOURCE BECAUSE OF THIS THE BRIGHTNESS OF THE LIGHTS WILL CHANGE WITH ENGINE SPEED AT IDLE THE LIGHTS WILL DIM AS THE ENGINE IS SPEEDED UP THE LIGHTS WILL BECOME THEIR BRIGHTEST WIRING INSULATED CLIPS NOTE IF WIRING INSULATED CLIPS WERE REMOVED FOR SERVICING OF UNIT TH...

Page 28: ...28 REPAIR PARTS TRACTOR MODEL NUMBER LT15 JNA1542A ELECTRICAL 28 29 26 24 42 43 27 27 25 41 27 27 40 33 30 8 2 1 27 52 16 48 22 21 16 ...

Page 29: ...32124780 Cable Battery 6 Ga 11 red 25 532146147 Cable Battery 6 Ga 44 red w 16 wire 26 532175158 Fuse 27 873510400 Nut Keps Hex 1 4 20 Unc 28 532124773 Cable Ground 6 Ga 12 black 29 532121305 Switch Plunger Nc Gray 30 532175566 Switch Ign 33 532140401 Key Ign Generic 40 532170217 Harness Ign 41 871110408 Bolt Blk Fin Hex 1 4 20 x 1 2 42 532131563 CoverTerminalRed 43 532175141 Solenoid 48 532140844...

Page 30: ... LT15 JNA1542A CHASSIS AND ENCLOSURES 64 74 60 30 51 57 53 52 54 55 17 29 28 12 3 31 1 3 2 9 208 208 5 5 207 144 25 26 26 10 26 144 25 26 60 3 3 3 142 208 13 208 11 143 60 211 114 3 115 3 142 145 37 37 18 206 14 14 38 212 58 207 20 207 23 ...

Page 31: ... 2 TYT 38 532175710 Bracket Asm Pivot Mower Rear 51 873800400 Nut Lock w Insert 1 4 20 Unc 52 819091416 Washer 9 32 x 7 8 x 16 Ga 53 532144697 Bracket Grille Lh 54 532161464 Screw Hex Wsh 8 18 x 7 8 55 532144696 Bracket Grille Rh 57 874780412 Bolt Hex 1 4 20 x 3 4 58 532150127 Air Duct Engine P L 60 872140606 Bolt Rdhd Sqnk 3 8 16 x 3 4 64 532154798 Dash Lower STLT 74 873680600 NutCrownlock3 8 16 ...

Page 32: ...9 57 51 74 75 78 76 77 1 25 19 24 2 53 35 34 37 36 35 62 36 64 65 59 56 212 55 63 116 70 77 61 22 27 26 6 113 18 51 5 18 6 85 52 30 32 32 30 52 11 85 80 4 3 6 81 84 82 145 79 170 16 96 26 89 90 27 51 48 150 151 202 49 47 50 120 21 8 10 156 165 168 166 163 14 159 161 198 158 164 83 162 169 197 ...

Page 33: ... Unc 52 873680500 Nut Crownlock 5 16 18 Unc 53 532105710 Link Clutch 55 532105709 Spring Return Clutch 6 75 56 817060616 Screw 3 8 16 x 1 57 532130801 V Belt Ground Drive 95 25 59 532169691 Keeper Belt Span Ctr 61 817060612 Screw 3 8 16 x 75 62 532124872 CoverPedalRound 63 532175410 Engine Pulley LT YT 64 871170764 Bolt Hex 65 810040700 Washer Lock Hvy Hlcl Spr 7 16 66 532154778 Keeper Belt Engine...

Page 34: ...R MODEL NUMBER LT15 JNA1542A STEERING ASSEMBLY 44 51 54 5 9 5 7 7 9 4 3 32 43 6 43 8 10 40 11 8 6 9 46 46 8 6 9 2 47 47 26 30 28 1 41 42 37 36 37 38 63 11 39 68 67 67 67 13 65 85 85 68 15 15 15 29 29 82 88 71 29 17 29 43 91 ...

Page 35: ...n Cotter 32 532130465 Rod Tie 36 532155099 Bushing Strg 37 532152927 Screw TT 32 5 x 5 x 3 8 Flange 38 532172093 CapWheelSteer 39 819132411 Washer 13 32 x 1 1 20 x 11 Ga 40 532124701 Nut Lock Center 3 8 24 Unf 41 532159945 Adaptor Wheel Strg 42 532169633 Boot Dash Steering 43 532121749 Washer 25 32 X 1 1 4 X 16 Ga 44 532153720 ExtensionSteeringNon adjust 46 532121232 Cap Spindle Fr Top Blk 47 5321...

Page 36: ...32121246 Bracket Mounting Switch 13 532121248 Bushing Snap Blk Nyl 50 Id 14 872050412 Bolt Rdhd Sqnk 1 4 20x1 1 2 15 532134300 Spacer Split 28x 96 Yel Zinc 16 532121250 Spring Cprsn 1 27 Blk Pnt 17 532123976 Nut Lock 1 4 Lge Flg Gr 5 Zinc 18 532124238 Cap Spring Seat 21 532171852 Bolt Shoulder 5 16 18 Unc 22 873800500 Nut Hex Lock W Ins 5 16 18 24 819171912 Washer 17 32 X 1 3 16 X 12 Ga 25 5321270...

Page 37: ... Item Only 11 532175039 Cap Axle Blk 1 50 X 1 00 532144334 Sealant Tire 10 oz Tube 2 8 14 5 1 532156369 Decal Oper Inst 2 532145005 Decal Battery 3 532170691 DecalHoodRH 4 532170692 Decal Hood LH 5 532170846 Decal HP Engine 7 532170565 DecalWheelSteering 8 532170563 DecalWarning 9 532141761 DecalFender KEY PART NO NO DESCRIPTION 1 6 2 1 5 8 4 10 3 9 11 7 WHEELS TIRES 10 532157140 Decal Fender Dang...

Page 38: ...6 Tube Drain Oil Easy 16 811050600 Washer Lock Ext Tooth 3 8 23 532169837 ShieldBRN DBRGuard 29 532137180 Kit Spark Arrestor Flat Scrn 31 532174642 Tank Fuel 32 532140527 Cap Asm Fuel W sym Vented KEY PART NO NO DESCRIPTION 33 532123487 Clamp Hose Black 37 532137040 LineFuel 38 532148315 Plug Drain Oil Easy 40 532124028 Bushing Snap Nyl Black Fuel Line 44 817670412 Screw Hex Wsh Thdrol 1 4 20 x 3 ...

Page 39: ...c 17 532130171 Trunnion Blk Zinc 18 873800800 Nut Lock w Wsh 1 2 13unc 19 532139868 Arm Suspension Rear 20 532163552 RetainerSpring 23 532110807 Nut Special KEY PART NO NO DESCRIPTION NOTE All component dimensions given in U S inches 1 inch 25 4 mm KEY PART NO NO DESCRIPTION 24 819131016 Washer 13 32 X 5 8 X 16 Ga 25 532124874 Spring2 1 8 26 532169484 RetainerClip 27 532126971 Rod Adj Lift Zinc 7 ...

Page 40: ...5 150 45 144 147 147 142 149 142 49 50 51 54 52 53 55 56 34 1 46 44 21 22 24 25 26 27 2 28 29 23 21 21 21 18 18 20 2 48 59 19 4 3 129 92 131 130 92 5 6 21 40 143 36 40 37 40 159 90 9091 92 92 93 94 93 95 113 117 116 118 119 114 115 112 121 114 117 119 116 115 111 118 121 113 152 151 153 154 157 158 67 153 156 155 ...

Page 41: ...mplete Standard Deck OrderSeparatelyNoseroller and Gauge Wheel Components Key Nos 90 95 and111 121 1 532165892 Mower Deck Assembly 42 2 872140506 Bolt 3 532138017 Bracket Assembly Sway Bar Front 4 532165460 Bracket Sway Bar 38 42 Deck 5 532124670 RetainerSpring 6 532130832 Arm Suspension Rear 8 532850857 Bolt Hex 3 8 24 x 1 25 Gr 8 9 810030600 Washer Lock 10 532140296 Washer Hardened 11 532138498 ...

Page 42: ...42 ...

Page 43: ...SIGHTING GUIDE ONLY RIDE UP AND DOWN HILL NOT ACROSS HILL SUGGESTED GUIDE FOR SIGHTING SLOPES FOR SAFE OPERATION Operate your Tractor up and down the face of slopes not greater than 15 never across the face Make turns gradu ally to prevent tipping or loss of control Exercise extreme caution when changing direction on slopes ...

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