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Cub Cadet 7530 Lawn Mower User Manual

1. 5 Briggs amp Stratton 170700 AE la EEGENEN deci OS 1 Dl AE ew SR Ae RL SE Be e 3 in SOKO ce s ub ds 2 3 8 in PaL eli e E ai 5 4 VE eon ose hg dE c oux ed es BB 16 79 cu in Engine Speed governed Rated maximum full load speed 3600 rpm A Eu ooo ee dec ye EU ak E ee Se es 1800 rpm Maximum no load speed high idle 3800 rpm Valve Clearance engine cold lt lt E UR AO e 007 EE 011 ELECTRICAL SYSTEM occ ee ve we ee ck ews Ha Magneto Spark plug gap 14mm plug Champion CJ 8 or equivalent 030 in gap Brosdker POINTS w ques anh BAe X 4 4 14 020 Battery terminal grounded 12 Volt Negative 26 SPECIFICATIONS International Cadet 75 Riding Mower MOWER Suction lift Leed A EE i x SER Eh HHHH gt HH NMN 32 in Adjustable cutting height approximate 1 1 2 to 4 in Mower drive V belt w clutch TIRE SIZES n e a ee te eege ees A wk can ew 11 x 4 00 5 2 ply tubeless EE J II JJ J TT TTE 13 x 5 00 6 Tire Inflat
2. TO THE OWNER Inside Cover SERVICE MANUAL INFORMATION CONTENTS INTRODUCTION CHASSIS SERIAL NO ENGINE SERIAL NO WORK SAFELY FOLLOW THESE RULES INSTRUMENTS AND CONTROLS BEFORE OPERATING THE ENGINE OPERATING THE ENGINE DRIVING THE MOWER ADJUSTING AND OPERATING 7 to 16 Adjusting the Seat Blade Care Cleaning Height of Cut Attaching and Detaching the Mower Leveling the Mower Adjusting Mower Drive V Belt Replacing Mower Drive V Belt Main Drive Belts Replacing Mower Spindle V Belt Adjusting Rear Axle Drive Chain FUEL SYSTEM 17 ELECTRICAL SYSTEM 18 19 ENGINE COOLING AND AIR CLEANER 19 STORING THE RIDING MOWER 20 DETACHABLE STEERING WHEEL Ecos 20 LUBRICATION 21 LUBRICATION GUIDE 21 22 LUBRICATION TABLE 22 MAINTENANCE CHART dissi 23 TROUBLE SHOOTING 23 25 SPECIFICATIONS 26 27 O1 di ec Pere a 4 4 WE IU le Weed T qi US Toc NC U By UE 4 LEFT and RIGHT indicate the left and right sides of the riding mower when facing forward in the driver s seat INTRODUCTION The portion of the machine which carries the operator is referred to as the RIDER The housing under the rider which does the cutting is referred to as the MOWER The entire machine is referred to asa RIDING MOWER mber Ay CAUTION Read the Operator s Manual Learn to operate this machine SAFELY Be alert Observe ALL Safety Practices Machines can be hazard
3. Depress the clutch brake pedal to disengage the transmission Move the gear selector lever to NEUTRAL and the mower clutch control lever to the DISENGAGE position Move the throttle control lever to the OFF position DRIVING THE RIDING MOWER Break in Procedure To obtain the best service from the riding mower for the first few hours of operation avoid rapid engagement of the mower clutch and main drive clutch After starting the engine set the mower height control lever at the cutting height desired set the throttle control on FAST Release the brake pedal lock Disengage the clutch by depressing the clutch Drake pedal until the clutch is disengaged approximately half way down Select the desired speed by moving the transmission gear selector lever to one of the three forward speed positions If the gear selector lever does not go into gear easily engage and disengage the clutch and then shift the gear selector lever into gear A your riding mower go slowly at first avoid sharp turns at high speed and on steep slopes to avoid an upset or loss of control CAUTION Until you have the feel of start the riding mower in motion by slowly releasing the clutch pedal Hold the transmission lever in gear for a short period of time until transmission is fully seated in gear Engage the mower blades by moving the mower clutch control lever slowly to the ENGAGE position To stop the mower move
4. instructed in Operator s Manual to avoid injury The discharge shield on the mower must be attached at all times while operating the mower Avoid sudden stops or starts especially on steep slopes to avoid injury Do not carry passengers or give rides as serious injury could result Handle gasoline with care it is highly flammable A Use approved gasoline container B Never remove the fuel tank cap or fill the fuel tank when the engine is running is hot or indoors Also do not smoke when working around inflammable fuel Wipe up spilled gasoline C Replace gasoline cap securely P GA h INSTRUMENTS AND CONTROLS Your riding mower has been safety engineered Thoroughly acquaint yourself with all the controls before attempting to operate the mower Clutch brake pedal Brake pedal lock Mower clutch lever Steering wheel Mower height control lever MA 5698 6 Ignition switch not seen J Throttle control 8 Gear selector lever 9 Recoil starter BEFORE OPERATING THE ENGINE Lubricatteon wee kak ku eee DC Wists a See Lubrication Instructions Pages 21 and 22 EusBlSystenmr WAYE qua Od ded utar gor y This engine is designed to operate on unleaded or low lead gasoline with a 31 minimum octane rating Research Method Lei Tux 24 GE acta Vr Check oil level 4 un ha ke BU T ji i 2 e ZU O
5. lubricator to the grease fittings one fitting on each spindle Center spindle can be greased through lift handle slot LUBRICATION TABLE Anticipated Air Temperature Above 32 F 32 to 0 Below 0 F 32 oz No 1 1 SAE 5W Engine Oil Engine Oil SAE 5W 20 1 qt SAE 30 SAE 10W Factory sealed See your Dealer 22 Operation to be performed Check engine oil pages 21 and 22 Fill gas tank page 17 Adjust chain tension Page 16 Grease front wheels and rear axle bearings page 21 and 22 Grease mower spindle bearings page 15 Oil drive chain and pedal spring page 13 Service air cleaner page 19 Check belt guides and belt tension page 14 Check spark plug page 19 Service battery page 18 Change oil pages 21 and 22 Clean mower page 8 Sharpen mower blades page 8 Drain fuel page 20 MAINTENANCE CHART Before each use After first 5 hours After first 5 hours DKE 10 hours or once a month Rear Discharge X 25 hours or twice a season Side Discharge X Before Storage TROUBLE SHOOTING Possible Cause Possible Remedy HARD TO START OR WILL NOT START No gasoline in fuel tank or carburetor Fill the fuel tank with non leaded or regular gasoline and check the carburetor Mower clutch lever may not be disengaged Move to disengaged position firmly to contact safety
6. pulley When installing a new belt be sure to place belt in the upper groove of the mower drive pulley on the deck and in the lower groove of the mower crankshaft pulley NOTE When installing a new belt make certain that the belt runs between the pulleys and the belt guides on the mower drive pulley and the mower crankshaft pulley Otherwise a ruined belt will result thus requiring early replacement 12 ADJUSTING AND OPERATING MAIN DRIVE BELTS See ka Note A 10 1 Main drive belt 2 Safety starting switch Mower clutch control 4 Oil drain hole 5 Mower drive belt idler 6 Clutch brake pedal return spring MA lk al 7 Transmission drive idler 8 Transmission brake rod assembly 9 Drive chain 10 Crankshaft mower drive pulley 11 Transmission drive pulley Underside of riding mower with mower removed to show mower drive belt pulleys rear axle drive chain etc NOTE A Periodically check the transmission brake rod spring If the spring length exceeds 1 1 2 inches with the brake pedal in the locked position readjust the locknut and jam nut on the end of the rod to obtain the proper adjustment of 1 1 2 inches Tighten the nuts relative to each other until firmly locked together to insure that they will not loosen up 13 ADJUSTING AND OPERATING MAIN DRIVE BELTS Continued Belt guide 1 8 inch DES desine S 1 8 to 3 16 inch clearance C
7. so equipped turn ignition key clock wise to the ON position Give a quick steady pull on the recoil starter handle to start the engine Do not jerk or pull it out to the very end in a rough manner Always pull the handle so the rope is in a straight line through the guide Maintain your hold on the handle and allow the cord to return slowly Releasing the handle when the cable is extended will shorten the life of the starter After the engine starts slowly move the throttle control lever to FAST position Do not use the choke to enrich the fuel mixture except when starting the engine Clutch Brake Pedal The combination clutch brake pedal is used to disengage the engine from the transmission when shifting gears and to actuate the brake to stop the rider To shift gears while the rider is in motion pedal should be depressed approximately 1 2 the travel distance To disengage the clutch and apply the brake press the pedal all the way down STOPPING THE ENGINE Electric and Manual Starting Equipped with Ignition Key Depress the clutch brake pedal to disengage th transmission Move the gear selector lever to NEUTRAL and the mower clutch control lever to the DISENGAGE position Move the throttle control lever to the SLOW position and allow the engine to idle a short time before stopping Then turn the ignition key or switch to the position Manual Starting Not equipped with Ignition Key
8. sure cap is securely inserted into the oil filler tube Engine incorrectly timed LACK OF POWER Running on choke position Move throttle control to fast position Restricted air filter element Clean or replace element Carburetor improperly adjusted Adjust carburetor See page 19 Incorrect timing or faulty ignition Check spark plug ENGINE OVERHEATS Excessive load on engine Reduce excessive load Lack of lubrication Fill crankcase to proper level Carburetor improperly adjusted Adjust carburetor See page 19 Engine improperly timed T Engine cooling fins plugged Clean out trash FREQUENT BATTERY DISCHARGE u LL cv Check all wire terminals for looseness and check the fuse sek kk a CP uu M es A ee E x Replace battery if necessary See your International Harvester dealer SPECIFICATIONS International Cadet 75 Riding Mower CAPACITIES APPROXIMATE U S MEASURE al m o nM 3 qt EEN Les 22255252554 A M E 1 qt GROUND SPEEDS MPH AT 3600 RPM ENGINE SPEED NOB TE arrea ekoe e Bee er ee aA s 2 18 da WEE ee a 3 27 tds cic gt es Bn es i 4 91 ROW amp e bom re ce II Backs ee 3 27 ENGINE Make and MODEL 3 25 ee
9. INTERNATIONAL CADET 15 Riding Mower INTERNATIONAL OPERATOR S MANUAL To The Owner Your new riding mower is designed to meet today s exacting operating requirements It is built for efficient economical performance ease of operation and with the ability to adjust to various conditions These features lighten your work and shorten your hours on the job You are urged to consult your International Harvester dealer concerning unusual conditions or special applications Let the experience of your dealer and the organization associated with him serve YOu Be sure to read the instructions for Adjusting and Operating in this manual Check each item referred to and acquaint yourself with the adjustments required to obtain efficient operation and maximum trouble free service Remember a riding mower which is properly lubricated and adjusted saves time and labor After the cutting season thoroughly clean your riding mower and inspect it Preventative main tenance pays dividends Your dealer has original equipment parts which assure proper fit and best performance He is able to recondition your equipment to a like new condition When in need of parts always specify the chassis and engine serial numbers including any prefix or suffix letters Write these serial numbers in the spaces provided Additional copies of this manual may be ordered from your International Harvester dealer at a nominal price CONTENTS
10. Turn needle valve to the mid point between rich and lean so engine runs smoothly Hold throttle at idle position and set idle speed adjusting screw until engine idle speed is 1800 RPM Hold throttle at idle position and turn idle valve in lean and out rich until engine idles smoothly If necessary correct idle speed Release the throttle engine should accelerate without hesitation or sputtering If engine does not accelerate properly the car buretor should be readjusted usually to a slightly richer mixture of needle valve 17 1 Carburetor 2 Fuel shut off 1 Needle valve 2 Idle valve 3 Idle speed adjusting screw MA 5707 ELECTRICAL SYSTEM The battery is located under the operator s seat To service or replace the battery remove the seat Remove the wing nut located under the center backrest of the seat Lift the back of the seat and pull back to remove seat from front slot of seat mounting bracket When reinstalling operator s seat reverse the above procedure A up or on its side remove the batteries to avoid spilling the electrolyte Battery electrolyte is poisonous and can be injurious to eyes skin and clothing If electrolyte is spilled flush immediately with a solution of one part baking soda to four parts water CAUTION If the tractor is to be tipped BATTERY Liquid Level For long battery life and trouble free operation check the battery at 15 day intervals for water
11. ass body Use only a mild soap or detergent Do not use ammonia base or abrasive cleansers Remove the battery and place it in a cool dry place above freezing 32 F Check the battery at least once a month for water level and amount of charge Store your riding mower in a dry and protected place Leaving the riding mower outdoors exposed to the elements will result in materially shortening its life DETACHABLE STEERING WHEEL The automotive type steering wheel is detachable By removing the roll pin at the lower end of the steering shaft the steering wheel can be removed from the housing See A in illust This feature provides for easier transporting in areas where height is a factor storage or 20 LUBRICATION ENGINE OIL NOTE After checking the oil the oil dip stick must be fully seated in the filler tube to avoid excessive oil consumption and irregular engine operation After the first five hours of operation change the oil as directed in Lubrication Table The engine oil must be drained and replaced with new oil every 25 hours of engine operation thereafter or a minimum of once a year and sooner if the equipment is operated under extremely dusty conditions We recommend No 1 Engine Oil If other than 1 Engine Oil is used it must be designated For Service MS In new API code these oils are usually designed as meeting either SD or SE requirements To aid starting th
12. ble washer arm cotter pins Front mounting bracket A 9084 CAUTION Stop the engine and dis connect the high tension wire to the spark plug Lock the brake prior to leveling the mower ADJUSTING AND OPERATING To attach the mower reverse the above procedure Also place the height control lever in the lowest position for ease in mounting NOTE When attaching the mower be sure that the lift arm is on the outside of the front mounting bracket and the quick attachable pin on the outside Also be sure belt guides are properly positioned LEVELING THE MOWER A properly leveled mower is one where the blades are cutting parallel to the ground Should level adjustment be necessary due to tire variation or wear proceed as follows Drive the riding mower onto a hard flat surface Turn the ignition off and disconnect the high tension wire to the spark plug Lock the brake prior to leveling the mower Leveling the Mower From Front to Rear Measure the distance from the ground to the blades blades parallel to centerline of rider front and rear in typical cutting height Add 11 32 inch washers between both front or rear hanger brackets depending on which measures high Leveling the Mower From Side to Side Measure the distance from the ground to the blades blades perpendicular to centerline of rider side to side in typical cutting height Add 11 32 inch washers between mower deck and front mounting
13. bracket on the side that measures high Put an equal amount of washers under the rear mounting bracket on the same side Pencil line on tront side of each bracket Front mounting brackets F f 2 ze lt d Rear mounting brackets 91587 Rear discharge mower shown see Note NOTE Instructions for leveling the side discharge mower are the same 10 ADJUSTING AND OPERATING ADJUSTING MOWER DRIVE V BELT When mower clutch lever is in position A it is disengaged When the lever is in position B it is engaged F Locate belt guide parallel to front edge d of mower as shown r d MASE The mower drive belt will require adjustment if it slips while operating under normal conditions or if the distance between the backsides of the belt at is 1 2 inch or less with the mower in the lowest position and the mower clutch lever in the engaged position 11 ADJUSTING AND OPERATING ADJUSTING MOWER DRIVE V BELT To adjust the mower proceed as follows CAUTION Stop the engine disconnect the high tension wire to the spark plug and lock the brake before working on the machine 1 Place the mower height control lever in the lowest position 2 Engage the mower clutch 3 Put a pencil line on the mower housing in front of the mower front mounting brackets 4 Adjust the mower forward by loosening bolts on the front mounting brackets an
14. d sliding the mower forward until the distance between the backsides of the belt is 1 1 2 inch at D NOTE The mower should be moved forward an equal distance on each side approximately 1 4 inch 5 Retighten bolts 6 Reconnect the high tension wire to the spark plug 7 Place the mower lift handle in the third position from the bottom Start the engine and slowly engage the mower clutch control Then disengage and check to make sure mower declutches pro perly If mower clutch control does not declutch shut off the engine detach the spark plug wire and check position of belt guides See page 14 If it still will not declutch move mower backward 1 16 Inch 8 Raise the mower to the maximum lift position and turn the wheels a full right and full left If the clearance between the mower housing and the tires is less than 1 8 inch the mower should be moved back slightly to give clearance REPLACING MOWER DRIVE V BELT CAUTION Stop the engine disconnect the high tension wire to the spark plug and lock the brake before working on the machine NOTE Substitute belts may not be satisfactory Use only specified replacements See your Inter national Harvester dealer Place the mower height control lever in the lowest position and disengage the mower clutch control Detach the front of the mower from the lift assembly to facilitate removal of the belt from the mower crankshaft pulley and the mower drive
15. e MI 1 Oil level dip stick and 6 Drawbar filler hole 7 Throttle control 2 Mower clutch lever 8 Gear selector lever 3 Fuel tank filler cap 9 Recoil starter 4 High tension wire 10 Air cleaner 5 Spark plug 11 Muffler OPERATING THE ENGINE NOTE The rider has an interlock safety starting system and the engine will not start unless the mower clutch control is in the full disengaged position and the gear selector lever is in neutral STARTING THE ENGINE Observe the following procedure to start the engine Keep hands and feet clear of blade and all moving parts to avoid injury 1 Place the clutch brake pedal in the locked position 2 Be sure the spark plug wire is properly attached to the spark plug 3 Make certain mower clutch lever is in the DISENGAGED position as shown 4 Be sure gear selector lever is in NEUTRAL Move the throttle control to choke position Electric Starting Turn ignition key clockwise to the start position and release it as soon as the engine starts Do not operate the starter more than 30 seconds at any one time If engine does not start within this time turn the key off and wait a few minutes then try again After the engine starts slowly move the throttle control lever to the FAST position Do not use the choke to enrich fuel mixture except when necessary to start the engine Manual Starting Riding mowers without electric starting If
16. e of safe operation or injury may occur Disengage power to the mower when transporting or not in use Before backing the riding mower always look for obstacles or bystanders in the area where the riding mower will move No one should operate this machine while under the influence of intoxicants or drugs that impair the senses or reactions Do not allow anyone in the area parallel to the discharge opening while moving Although the area 3 disengage the mower and shut off the engine has been supposedly cleared of foreign objects small objects may have been overlooked and may be discharged by the mower causing serious injury Watch out for traffic when crossing or near roadways When making any adjustments to your riding mower always disconnect the high tension wire to the spark plug otherwise the engine may start causing serious injury Be sure the mower clutch control is DIS ENGAGED and the transmission is in neutral before starting the engine It is recommended that the machine be stopped and inspected for damage after striking a foreign object and that any damage be repaired before restarting and operating the machine as broken pieces could be thrown causing injury Until you become familiar with the riding mower it is recommended that quick starts stops and rapid engagement of the mower be avoided Keep the machine in good operating condition and keep safety devises in place Use guards or shields as
17. e selection of crankcase lubri cating oils should be based on the lowest anticipated temperature until the next drain period Check the oil level of the engine crankcase every five hours to see that it is filled to the correct level Check the oil level only while the engine is stopped The crankcase oil filler cap has the oil level gauge attached to it Always keep the oil level between the FULL and ADD marks in the SAFE range on the gauge Do not over fill When checking the oil level the gauge must be withdrawn and wiped clean then inserted all the way and withdrawn for a true reading LUBRICATION GUIDE After Every 5 Hours of Operation Oil filter cap and Bayonet type Oil Level Gauge See Page 5 Rear Axle Drive Chain See Page 16 Pedal Return Spring See Page 13 Mower Idler Pulley Arm See Page 15 Rear Axle Bearings 2 See Page 16 oil to bring it to the FULL mark on the gauge Do not over fill Do not operate the engine if the oil level is below the ADD mark on the gauge Dip stick must be fully seated before operating the engine Check the oil with the engine stopped and add sufficient new After Every 10 Hours of Operation Apply a light coat of engine oil to the full length of the chain Apply a few drops of oil to the spring Apply a few drops of oil to the idler pulley arm Use 251H EP grease or equivalent 2 multi purpose lt lithium grease and apply
18. g mower is to be stored for any length of time 30 days or more proceed as follows Drain the fuel tank and run the engine until the fuel is exhausted from the fuel system CAUTION Drain the fuel tank out of doors and into a clean container CAUTION Handle gasoline with care it A is highly flammable Use approved gasoline container B Never remove the fuel tank cap or fill the fuel tank when the engine is running is hot or indoors Also do not smoke when working around flammable fuel Wipe up spilled gasoline C Replace fuel tank cap securely CAUTION During operating do not run A the engine in confined area such as storage building any longer than is necessary for immediate moving of the machine ouside into the air Exhaust gases are toxic Opening doors and windows may not provide adequate ventilation CAUTION If the tractor is to be tipped up remove the battery to avoid spilling the electrolyte Battery electrolyte is poisonous and can be injurious to eyes skin and clothing If electrolyte is spilled flush immediately with a solution of one part baking soda and four parts water Remove spark plug and pour one ounce of I H No 1 Engine Oil through spark plug hole into the cylinder Crank engine several times to distribute oil over cylinder walls Replace the spark plug Wash or clean and completely lubricate the riding mower See Lubrication Guide on pages 23 and 24 This is a fibergl
19. highly inflammable hydrogen gas when charging and continue to do so for some time after receiving a steady charge Do not under any circumstances allow an electric spark or an open flame near the battery Do not lay tools across battery terminals as this may result in a spark or short circuit which may cause an ex plosion Be careful to avoid spilling any electrolyte on hands or clothing CAUTION Electrical storage batteries For dependable battery International Harvester dealer service see your SPARK PLUG NOTE Remove all dirt from base of spark plug before removing ELECTRICAL SYSTEM Remove the spark plug after every 100 hours of operation for cleaning and checking the gap When adjusting the gap always bend the outer electrode Never bend the insulator If gap between the electrodes is too great the engine will misifre and be hard to start Always use a spark plug wrench when removing or reinstalling the plug Be sure the gasket is in good condition and screw plug in tightly Do not tighten more than enough to compress the gasket to seat the plug and assure a good heat transfer between the plug and cylinder head Replace defective plug with new plug Use a Champion CJ 8 spark plug or equivalent See your International Harvester dealer for a correct re placement plug Cleaning Spark Plug Clean spark plug with a pen knife or wire brush and solvent If electrode is burned away or the porcelain is cracked
20. ion pressure 22222 15 Ibs sq Specifications are subject to change without notice 27 Accidents can be prevented with your help No accident prevention program can be suc cessful without the wholehearted co operation of the person who is directly responsible for the operation of equipment To read accident reports from all over the country is to be convinced that a large number of accidents can be prevented only by the operator anticipating the result before the accident is caused and doing something about it No power driven equipment whether it be transportation or processing whether it be on the highway in the harvest field or in the industrial plant can be safer than the man who is at the controls If accidents are to be pre vented and they can be prevented it will be done by the operators who accept a full measure of their responsibility It is true that the designer the manufacturer the safety engineer can help and they will help but their combined efforts can be wiped out by a single careless act of the operator It is said that tbe best kind of a safety device is a careful operator We ask you to be that kind of an operator INTERNATIONAL HARVESTERH COMPANY 401 NORTH MICHIGAN AVE i CHIANG ILLINS GIGT d WSs 1 083 630 Rev 5 8 75 80 PRINTED IN UNITED STATES OF AMERICA
21. level If the battery is in need of charging it should be given immediate attention Keeping the battery fully charged not only adds to its life but makes it available for instant use when needed The electrolyte acid and water in each cell should be at the proper level at all times to prevent battery failure When the electrolyte is below this level pure distilled water should be added CAUTION Acid or electrolyte should never be added except by a skilled battery man Under no circumstances A add any special battery dopes solutions or powders 18 Occasionally remove the battery cables and brighten the terminal contact surfaces with wire wool and reassemble Apply a light coat of vaseline or chassis lubricant Be sure terminals are clamped tightly the rubber cover is slid over the positive terminal and that battery is fastened securely in the battery box Replace defective cable and keep vent holes in battery filler caps open The output of the built in charging circuit in the engine rises from 2 amperes at 2400 RPM to 3 amperes at 3600 RPM and uses less than 2 horsepower Connecting Booster Batteries When required a booster 12 volt battery may be connected in parallel with the 12 volt system on the tractor NOTE All circuits must be turned off Elec trical System is Negative grounded only Reversed polarity will result in permanent damage to components of the electrical system A give off
22. ous in the hands of an UNFAMILIAR UNTRAINED or COMPLACENT operator Don t risk INJURY or DEATH MA 16034 WORK SAFELY FOLLOW THESE RULES This symbol is used to cail your attention to Instructions concerning your personal safety Be ES sure to observe and follow these instructions Whenever the operator dismounts from the riding mower or leaves the riding mower unattended Know the controls and how to stop quickly READ THE OPERATOR S MANUAL Only move the gear selector lever to shift into gear or change gears with the clutch brake pedal dis engaged Never place hands or feet under the mower in the discharge chute or near any moving parts while the mower ts running Do not work on the mower with the engine running as the mower could acciden tally be engaged and cause injury Never leave the engine running unattended or permit the riding mower to be operated by persons not acquainted with its use and the rules for safe Operation Be sure all stones branches or other objects that might be picked up and thrown by the mower blades are removed before starting to mow Never look into the discharge opening while the blades are in motion as serious accident and or Injury could result Stay alert for holes in terrain and other hidden hazards which could cause loss of control or upset Children should not be allowed to operate the riding mower unless properly supervised and are physically and mentally capabl
23. r whip excessively Axle must be perpendicular to side of rear frame Adjust each side an equal amount Tighten nuts to 33 37 ft Ibs FUEL SYSTEM This engine is designed to operate on unleaded or low lead gasoline with a 91 minimum octane rating Research Method The use of unleaded gasoline will lengthen spark plug and valve life maintain engine performance longer and reduce rust and corrosion of engine while stored CAUTION Handle gasoline with care it A is highly flammable A Use approved gasoline container B Never remove the fuel tank cap or fill the fuel tank when the engine is running is hot or indoors Also do not smoke when working around flammable fuel Wipe up spilled gasoline C Replace fuel tank cap securely CARBURETOR ADJUSTMENTS The carburetor is adjusted at the factory Do not make adjustments unless absolutely necessary Factory settings are correct for normal operating conditions If adjustments are necessary proceed as follows CAUTION During operating do not run A the engine in confined area such as storage building any longer than is necessary for immediate moving of the machine ouside into the air Exhaust gases are toxic Opening doors and windows may not provide adequate ventilation Start the engine and allow it to warm up at 3000 RPM Turn needle valve in until engine misses lean mixture then turn it out past smooth operating point until engine runs unevenly rich mixture
24. rankshaft pulley 2 lower groove c WC 1 8 inch Pus cat i SC SCH clearance Belt guide Transmission Drive Belt Crankshaft pulley Mower drive pulley lower groove 1 8 to 3 16 inch upper groove Belt guide clearance Belt auide i Belt guide Mower Drive Belt Viewed from bottom of tractor MA STOS A Belt Installation Diagram 14 ADJUSTING AND OPERATING MAIN DRIVE BELTS Continued The main drive belt is set at the factory and requires no adjustment When the belt has worn or stretched to a point where slippage occurs in forward or reverse a new belt should be installed Replacing Main Drive Belt CAUTION Stop the engine and dis connect the high tension wire to the spark plug Lock the brake prior to leveling the mower REPLACING MOWER SPINDLE V BELT ST Lal arm p Spindle bearings Idler pulley aan Pog ee Neal Detach the mower Refer to Attaching and De taching Instructions Loosen the two 2 belt guides around the trans mission drive pulley and the belt guide around the mower crankshaft drive pulley and then remove the drive belt When installing a new belt reverse the above procedure and adjust belt quide NOTE Be sure the new belt runs inside the belt guides around the transmission and mower drive pulleys Idler tension spring A v1390 Detach the idler tension spring from the mower deck When in
25. replace with new plug NOTE Do not use abrasive cleaning machine because any grit introduced into the engine could cause severe damage A re ea 3 ER Check gap am A 69529 Checking the spark plug gap Set gap at 030 inch ENGINE COOLING AND AIR CLEANER ENGINE COOLING This is an air cooled engine Air must circulate freely around the engine Keep the cooling fins and housing area free of accumulated dirt and trash or engine will overheat and result in damage to moving parts OIL FOAM AIR CLEANER Clean and re oil the air cleaner element every 25 hours under normal operating conditions Under extremely dusty conditions clean the element every few hours To clean the element proceed as follows 19 Remove the cover screws lift the air cleaner cover and carefully remove the element to prevent dirt from entering the carburetor Wash the foam element in kerosene or liquid detergent and water to remove all dirt Also clean the air cleaner body and cover Wrap the foam element in a cloth and squeeze dry Then saturate the element in engine oil SAE 30 Squeeze the element to remove excess oil and reassemble and fasten to carburetor with screw NOTE Replace air cleaner mounting gaskets that are worn or damaged to prevent dirt or dust entering engine through improper sealing STORING THE RIDING MOWER At the end of the mowing season or in the event the ridin
26. stalling a new belt be sure the belt is in the lower groove of the center drive spindle Reattach idler tension spring with the long hook of the spring into the mower housing T 5 ADJUSTING AND OPERATING ADJUSTABLE REAR AXLE DRIVE CHAIN Rear bearing housings CAUTION Stop the engine disconnect the high tension wire to the spark plug and lock the brake before working on the machine After 5 hours of operation or when excessive noise is noted check the chain tension The drive chain can be adjusted to compensate for stretch and wear The rear axle bearing mounting holes are slotted at the top to move the axle back for proper adjustment as shown A Be sure machine is adequately blocked to avoid injury Drive chain d 2 TI Grease fitting one each side ren To properly adjust the drive chain set the trans mission in neutral block the front wheels jack up the rear end of the rider and remove the rear wheels NOTE Remember the order in which the washers are removed from the axle When re assembling be sure the washers are assembled in the same order to maintain proper drive chain alignment Adjust the bearing housings until the slack is out of the chain The chain must not be taut If the drive chain is too tight excessive wear and stretch will result in premature failure Not enough tension may allow chain to jump the sprocket ride the teeth break o
27. starting switch Transmission shift lever may not bein hie tra l s z4 BA SE eee Move to center neutral position Choked improperly flooded engine Follow starting instructions Water ingasoline 3 ee Drain the fuel tank and carburetor Use new fuel and dry the spark plug EE Oe es Be es The rider has an interlock safety starting system The mower clutch control must be fully disengaged and the gear selector lever in neutral Check the high tension wire See Page 20 Check to see that the throttle control is not in the OFF position Spark plug dirty or improper gap Clean adjust the gap to 030 inch or replace the plug ENGINE OPERATES IRREGULARLY KNOCKS OR SMOKES Restricted air cleaner Clean or replace the element Running on choke position Move throttle control to fast position Spark plug dirty wrong gap or WONO TYDE ia AE ROUX xw Clean adjust the gap to 030 inch or replace the plug Carburetor improperly adjusted Adjust carburetor See Page 19 Poor or weak spark Check spark plug and wiring See your International Harvester dealer 24 TROUBLE SHOOTING Possible Cause Possible Remedy ENGINE OPERATES IRREGULARLY KNOCKS OR SMOKES Continued Enginesmokes Check combination oil filler cap and oil level gauge and be
28. t to the seat and position as desired To attach the seat reverse the above described procedure CLEANING Clean the underside of the mower at the end of the mowing season and when the buildup of cut material on the underside is noticed CAUTION To prevent an accident possible injury always stop the engine and disconnect the spark plug wire Lock the brake Place mower clutch control lever in the disengaged position prior to cleaning or doing any work on the mower BLADE CARE CAUTION Be careful not to cut your self when sharpening the blades or cleaning the underside of the mower The cutting blades must be kept sharp at all times The blades can be sharpened on the mower with a few strokes of a file or they can be removed from the mower and sharpened on a grinding wheel NOTE Sharpen ends evenly so that blades remain balanced However if the cutting edge of the blade is within 3 8 inch of the wind wing it is recom mended that new blades be installed New blades are available at your Internation Harvester dealer A 915385 Blade for rear discharge mowers Torque nuts and bolts to 33 37 ft Ibs gt Blade for side discharge mowers Torque nuts to 55 60 ft Ibs ADJUSTING AND OPERATING De sure blades are assembled so the cutting edges are in the direction of rotation with the wind wings pointed toward the deck To detach the blade place a large wood block between cutting edge and ho
29. the control lever to the DISENGAGE position CAUTION To prevent an accident or possible injury always disengage the mower when transporting or not in use LOCKING THE BRAKE A D Always lock the brake when the rider is parked on a grade To lock the brake press down on the pedal then place the brake pedal lock the engaged position as shown To disengage the lock press down on the pedal lift the lock up and place it in the disengaged position ADJUSTING AND OPERATING The center drive spindle bearings and the blade spindle bearings can be relubricated and are care fully enclosed and protected by seals LUBRICATION Side Discharge Mower After every 25 hours of operation lubricate the three spindles one fitting in each spindle using chassis lubricant pressure gun grease Only one or two strokes of the applicator is required zy Rear Discharge Mower After every 10 hours of operation lubricate the three spindles one fitting in each spindle using chassis lubricant pressure qun grease Only one or two strokes of the applicator is required ADJUSTING AND OPERATING ADJUSTING THE SEAT To adjust the seat for the most comfortable operating position detach the seat by removing the wing nut located under the center backrest of the seat Lift the back of the seat and pull back to remove the seat from the front slot of seat mounting bracket Remove the two nuts holding the seat mounting bracke
30. two or three strokes of the lubricator to grease fittings 21 6 Front Wheels 7 Mower Spindle Bearings 3 Rear Discharge Mower See Page 15 8 Engine Crankcase See Page 13 9 Mower Spindle Bearings 3 Side Discharge Mower See Page 15 Check Point of Lubrication at Hours Engine Crankcase H 25 Transmission and Differential LUBRICATION GUIDE Afer Every 10 Hours of Operation Continued Use 251H EP grease or equivalent No 2 multi purpose lt lithium grease and apply one or two strokes of the lubricator to the grease fittings one fitting on each front wheel Use 251H EP grease or equivalent No 2 multi purpose lithium grease and apply one or two strokes of the lubricator to the grease fittings one fitting on each spindle Center spindle can be greased through lift handle slot After Every 25 Hours of Operation While the engine is warm remove the drain plug and drain all the oil from the crankcase To drain completely raise the right side of the riding mower by placinga 4 inch to 6 inch block under the right rear wheel After draining replace the drain plug Remove the crankcase oil filler cap and refill the crankcase with new oil up to the FULL mark on the oil level gauge Refer to the Lubrication Table for proper quantity and viscosity to use Use 251H EP grease or equivalent No 2 multi purpose lithium grease and apply one or two strokes of the
31. using to keep the blade from rotating Then remove the jam nut or screws depending on whether you have a side discharge or a rear discharge mower When replacing blades use the reverse procedure put the wood block between the wing of the blade and the deck HEIGHT OF CUT Cutting height can be adjusted from approximately 1 1 2 inches to 4 inches quickly and easily The mower height control lever is located directly under the operator s seat When the lever is pulled out it can be raised or lowered to the desired cutting height The height of cut is approximate since operator weight and tire inflation will effect the cutting height The cutting blades are designed to create a suction to lift the grass for an even cut The mower extends beyond the driving wheels to permit cutting close to walkways fences buildings trees etc ATTACHING AND DETACHING THE MOWER The facilitate changing the blades sharpening the blades cleaning etc the mower may be detached as follows Position the mower in the lowest position Detach front of mower from frame by removing the retaining pins from the front mounting brackets The pins are held by two quick attachable cotter pins Slide the mower backward to remove V belt from mower center drive pulley and to disconnect rear of mower from lift frame Raise the mower lift handle to the highest position and slide the mower out to the side Lift Quick attacha

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