Snapper 7800596 Lawn Mower User Manual
Contents
1. mn Blade Wear Limit Inspect the blade Figure 19 frequently for signs of excessive wear or damage A New blade B Wear limit cracks or notches begin to appear on tip C Dangerous condition Do not use on the mower Replace with a new blade A WARNING A DO NOT use a cutting blade that shows signs of excessive Figure 19 Removing the mower blade wear or damage Refer to the Section entitled MOWER BLADE REPLACEMENT for proper blade inspection and Service procedures 14 www snapper com Maintenance Continued A WARNING A DO NOT attempt any maintenance adjustments or service with engine and blade running STOP engine and blade Disconnect spark plug wire and secure away from spark plug Engine and components are HOT Avoid serious burns allow sufficient time for all components to cool Blade Sharpening Continued 4 Sharpen the blade on a grinding wheel at an angle of 22 to 28 degrees B Figure 20 DO NOT sharpen the blade beyond the original cutting edge A Do not sharpen beyond original cutting edge End view of blade assembly Figure 20 Sharpening the mower blade 5 Check blade for balance If necessary correct balance by grinding heavy end of blade 6 Reinstall blade B Figure 19 Note the correct assembly order A Blade hub B Blade C Blade flange facing up D Cone washer concave side up E Capscrew 7 Check torque of blade retaining cap screw Recommend2. 3 Water debris or stale fuel in fuel system 3 Drain and clean fuel system Excessive Vibration 1 Damaged out of balance or bent mower blade 1 Service mower blade 2 Loose blade components 2 Service and tighten loose parts 3 Loose or missing air lift if equipped 3 Replace air lifts Tighten to proper torque 4 Lumpy or frayed belt 4 Replace belt Mower Will Not Move Loss 1 Build up of debris on or around wheel drive 1 Clean debris Of Traction Self Propelled components Models 2 Driven disc slipping 2 Clean or replace driven disc 3 Drive belt requires replacement 3 Replace drive belt 4 Damaged transmission 4 Contact authorized dealer Cutting Grass Improperly 1 Cutting height too low or high 1 Adjust cutting height 2 Engine speed too slow 2 Move engine speed control to Fast position 3 Forward ground speed too fast 3 Move ground speed control to a slower speed 4 Terraced cut side to side 4 Adjust height of cut with height adjust levers 5 Excessive deck pitch front to rear 5 Adjust height of cut with height adjust levers 6 Cutting blade dull or damaged 6 Sharpen cutting edges or replace blade Poor Grass Discharge 1 Engine speed too fast 1 Move engine speed control to Fast position 2 Forward speed too fast 2 Move ground speed control to a slower speed 3 Grass is wet 3 Mow when grass is dry 4 Excessively worn or damaged blade A Service mower blade 5 Build up of grass cl
3. Clean more often under dusty conditions or when air debris is present Maintenance Replacement Parts Engine Speed Control Cutter Blade Air Lift Compatible Cutter Blade Mulching Cutter Blade Not Air Lift Compatible 7026691 Cutter Blade Ninja Quad Edge 7046787 7073528 Rubber Drive Tire 7041855 Parts Manual for 21 Steel Deck Walk Behind Mower Series 20 1006477 21 3JULU2JUIEIN gt YN o E gt Troubleshooting PROBLEM PROBABLE CAUSE CORRECTIVE ACTION Engine Will Not Start Using Recoil Starter 1 Fuel tank empty 1 Fill fuel tank with fresh fuel 2 spark plug wire disconnected Za Place spark plug wire onto spark plug Engine Stalls or Stops After 1 Blade control is released or is not being held 1 Blade control should be held securely against handle Running securely against handle at all times during operation of mower 2 Fuel tank empty 2 Fill with fuel to proper level 3 Engine air pre cleaner and or air cleaner dirty 3 Clean free of all debris 4 Spark plug defective or gap set improperly 4 Service spark plug 5 Water debris or stale fuel in fuel system 5 Drain and clean fuel system Engine Loses Power 1 Engine air pre cleaner or air cleaner dirty 1 Clean or replace filters 2 Spark plug faulty 2 Service spark plug
4. D on the inside rear of the deflector slips onto the stud behind the rear of the discharge Opening where the rear of the recycling cover was Originally secured 3 Install the internal external tooth lock washers and knob nuts onto the studs and tighten securely Figure 9 Installing the discharge deflector 10 Installing the Grass Bag Adapter Optional Accessory on Some Models 1 Remove the recycling cover Refer to the Section enti tled Recycling Operation 2 Install the adapter A Figure 10 to the deck in place of the recycling cover making sure that The front hole B on the outside front of the adapter fits over the stud where the front of the recycling cover was originally secured The slot C on top of the adapter slips under the restraining nut on top of the deck under the right front corner of the engine e The slot D on the rear of the adapter slips onto the stud behind the rear of the discharge opening where the rear of the recycling cover was Originally secured 3 Install the internal external tooth lock washers and knob nuts onto the studs and tighten securely 4 Route the recoil rope around the outside of the rope guide pulley E Note The recoil rope may need to be slackened Refer to the section entitled Starting and Operation Engine and Blade Figure 10 Installing the grass bag adapter A WARNING A DO NOT operate without entire Grass Catcher or guard in place Gra
5. If worn or damaged replace the belt before operating the mower Service Periodic Perform all maintenance as described in the Service Schedule section of this manual Engine service the engine according to the engine owner s manual Air Filter Refer to the engine owner s manual for service instructions Engine Oil Refer to the engine owner s manual for service instructions Storage Procedure Refer to the Engine Owner s Manual for directions regarding engine storage preparations Prepare the mower for end of Season storage as follows 1 Drain the fuel from the fuel tank and let the engine run until all fuel is out of the carburetor 2 Disconnect and remove the spark plug wire away from the spark plug before any other preparations are made 3 Tape all openings closed to prevent spraying water into the exhaust or air intakes during washing 4 Tilt the mower up on its rear wheels and thoroughly clean the underside of the deck Do not tilt the mower with the spark plug or carburetor down Scrape away any accumulation of grass with a putty knife and or wire brush 5 Lubricate all exposed metal with a light coating of oil to prevent corrosion 6 On self propelled models disconnect the transfer rod clip and remove the ground speed control rod before folding the handles 7 Loosen the handle knobs Carefully fold the handles forward flexing the control cables to prevent cable damage 8 Store
6. teenagers with mature judgment under close adult supervision to operate machine 5 DO NOT pull mower backwards unless absolutely necessary LOOK and SEE behind and down for children pets and hazards before and while backing 6 USE EXTRA CARE when approaching blind corners shrubs trees or other objects that may obscure vision Slope Operation 1 Slopes are a major factor related to slip and fall acci dents which can result in severe injury All slopes require extra caution If you feel uneasy on a slope DO NOT mow it 2 Mow across slopes never up and down Exercise extreme CAUTION when changing directions on slopes DO NOT mow steep slopes or other areas where stability or traction is in doubt Refer to the Slope Guide at the end of this manual 3 Use extra care with grass catchers or other attachments these affect the handling and the stability of the machine Preparation 1 Read understand and follow instructions and warnings in this manual and on the mower engine and attachments Know the controls and the proper use of the mower before Starting 2 Only mature responsible persons shall operate the machine and only after proper instruction 3 Data indicates that operators age 60 and above are involved in a large percentage of mower related injuries These operators should evaluate their ability to operate the mower safely enough to protect themselves and others from serious injury Preparation Continued From Pr
7. 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 of products on which engines are placed and the variety of environmental issues applicable to operating the equipment the gas engine will not develop the rated gross power when used in a given piece of power equipment actual on site or net power This difference is due to a variety of factors including but not limited to accessories air cleaner exhaust charging cooling carburetor fuel pump etc application limitations ambient operating conditions temperature humidity altitude and engine to engine variability Due to manufacturing and capacity limitations Briggs amp Stratton may substitute an engine of higher rated power for this series engine SNAPPER Snapper Products 535 Macon Street McDonough GA 30253 1 800 935 2967 28 www snapper com
8. and Drive Disc Service If the mower does not propel itself properly check for the following problems Figure 22 Wheel drive components 1 Grease on the drive disc A Figure 22 causing slippage 2 Broken or disconnected drive spring B 3 Driven disc C is out of adjustment 4 Driven disc rubber is worn does not contact drive disc properly 5 Worn Poly V belt D or engine drive belt E If any of the above 1 thru 5 are causing problems service as follows Cleaning Drive Disc Driven Disc If oil or grease on the drive disc or driven disc is causing slippage clean the discs as follows 1 Wipe away any oil or grease with a clean cloth 2 Use either an approved grease solvent or hot soapy water to clean drive disc or driven disc 3 Rinse components with clean water 4 Dry components with a clean cloth 16 Drive Spring Repair Replacement lf the drive spring A Figure 23 is loose reconnect If the Spring is broken replace with a new spring Note Use a pair of needle nose pliers to install the drive spring IMPORTANT If the drive system continues slipping refer to the Troubleshooting section a A NN PX I _4 D NJ A N Figure 23 Replacing the drive spring Driven Disc Adjustment If the drive disc and driven disc are clean and the mower drive is still slipping adjust the driven disc as follows 1 Move the ground speed control A Figure 24 into the fast position
9. any maintenance adjustments or service with engine and blade running STOP engine and blade Disconnect spark plug wire and secure away from spark plug Engine and components are HOT Avoid serious burns allow sufficient time for all components to cool WWW snapper com Operation Continued A WARNING A DO NOT attempt any maintenance adjustments or service with engine and blade running STOP engine and blade Disconnect spark plug wire and secure away from spark plug Engine and components are HOT Avoid serious burns allow sufficient time for all components to cool Cutting Height Adjustment 1 Pull the height adjusting latch A Figure 6 outward and move to the desired cutting height Figure 6 Adjusting cutting height 2 Set all wheels at the same cutting height The high est cutting position is Notch 7 Figure 7 The lowest cutting position is Notch 1 are aTi NN 1 25 in Figure 7 Cutting height settings approximate A WARNING A stop engine and mower blade by releasing the blade control before adjusting cutting height Recycling Operation Note For best recycling results cut up to a maximum of 1 3 of grass blade length and recycle ONLY when grass is dry 1 Set all wheels in the highest cutting position Notch 7 Refer to the Section entitled Cutting Height Adjustment 2 Move the engine speed control to the fast Rabbit posi tion 3 Move the ground speed control to the slowes
10. will saturate the air filter and cause the engine to be hard to start or not start at all If contamination does occur the air filter will have to be replaced 3 Remove the driven disc Refer to the Section entitled Driven Disc Replacement for driven disc removal procedure 4 Drain the fuel tank before tipping the mower Do not tilt the mower with the spark plug or carburetor down Tilt the mower up on its rear wheels and remove the blade and blade hub Assistance from another person may be necessary to hold the mower in the tilted position 5 Hold the slotted end of the drive disc bolt B Figure 32 with a screwdriver and remove the nut G and internal tooth lock washer F 6 Remove the belt cover located under the deck 7 Lift the drive disc A up and remove the worn belt 8 Loop one end of the new belt over the engine pulley and insert the other end through the slot in the deck 9 Loop the belt around the pulley on the bottom of the drive disc 10 Reinstall the drive disc and retaining hardware IMPORTANT 1 The square shoulder of the drive disc bolt must fit into the square hole of the bushing 2 The square end of bushing must fit into the bracket slot 11 Reinstall the belt cover and tighten the bolts securely 12 Reinstall the blade hub and cutter blade Recommended torque for the blade cap screw is 40 ft Ibs 20 Figure 32 Removing the drive disc Transmission Poly V Belt Replacement 1 R
11. A N Figure 24 The ground speed control WWW snapper com Maintenance Continued A WARNING A DO NOT attempt any maintenance adjustments or service with engine and blade running STOP engine and blade Disconnect spark plug wire and secure away from spark plug Engine and components are HOT Avoid serious burns allow sufficient time for all components to cool Driven Disc Adjustment Continued 2 Remove the driven disc spring A Figure 25 from the driven disc assembly B Also remove the pin and washer C from the transfer rod D and remove the end of the transfer rod from the hole in the driven disc assembly We i Y Sa MS AN Figure 25 Adjusting the driven disc 3 Slide the driven disc assembly over to 1 8 A Figure 26 from the outside edge of the drive disc B 4 Loosen the jam nut A Figure 27 securing the transfer rod B to the ball joint C on the pivot bracket D 5 Turn the rod in or out of the ball joint until the end of the rod aligns with the hole E in the driven disc assem bly from which the rod was removed IMPORTANT Do not move the pivot bracket 6 Reinstall the rod as removed in Step 2 Move the ground speed control to the slow position then back to the fast position Recheck the 1 8 measurement described previously Readjust as needed Tighten the nut when finished Reinstall the driven disc spring to the driven disc assembly Figur
12. D 4 Install the new bearing 5 Carefully install the new O ring over the outside of the new bearing 6 Install the bearing holder and secure with screws 7 Install the 3 8 hex lock nut Figure 30 Replacing the hex shaft bearing Belt Service On self propelled mowers the engine belt A Figure 31 transmits power from the engine pulley B to the drive disc C The drive disc powers the poly v belt which engages the transmission that powers the rear wheels Should these belts become worn they could cause slippage which would impair mower performance The condition of the engine belt and poly v belt should be checked after every 25 hours of mower operation Engine Drive Belt Replacement Stretch Type Belts 1 Empty the fuel tank 2 Note the belt routing Figure 31 There is no idler pulley on these models to disconnect 3JU2U3JUIE A Figure 31 Engine drive belt routing 19 Maintenance Maintenance Continued A WARNING A DO NOT attempt any maintenance adjustments or service with engine and blade running STOP engine and blade Disconnect spark plug wire and secure away from spark plug Engine and components are HOT Avoid serious burns allow sufficient time for all components to cool Engine Drive Belt Replacement Stretch Type Belts Continued IMPORTANT Drain the fuel tank before tipping the mower DO NOT tip the machine with the carburetor or spark plug down Oil from the crankcase
13. Gasoline is extremely flammable and the vapors are explosive 1 Extinguish all cigarettes cigars pipes and other sources of ignition 2 Use only an approved fuel container 3 DO NOT remove fuel cap or add fuel with the engine running Allow the engine to cool before refueling 4 DO NOT refuel the machine indoors 5 DO NOT store the machine or fuel container inside where there is an open flame spark or pilot light such as ona water heater or other appliances wwWw snapper com 4 Important Operator Safety Instructions Continued Safe Handling of Gasoline Continued From Previous Page 6 DO NOT fill fuel containers inside a vehicle or on a truck or trailer bed with a plastic liner Always place the contain ers on the ground away from the vehicle before filling 7 Remove gas powered equipment from the vehicle or trailer and refuel it on the ground If this is not possible then refuel equipment using a portable container rather than a gasoline dispenser nozzle 8 DO NOT start gas powered equipment in enclosed vehi cles or trailers 9 Keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete DO NOT use a nozzle lock open device 10 If fuel is spilled on clothing change clothing immediately 11 DO NOT overfill a fuel tank Replace fuel cap and tighten securely Operation 1 DO NOT put hands or feet near or under rotating parts Keep clear of discharge area w
14. NSIAI INGE INS PP ee 11 QC E eh Sen ere 12 Change Engine Oil Male Dann Ma o Aa 12 Check Transmission Grease u A A Af 12 S Check Mower Blade uuu eee Dec A ocio canon 13 Check Engine Drive BEI a ero ape 13 Check Transmission Belt U Md coccion 13 Service Periodic 9a AAA A Derren 18 IA A A e O 13 AAA A A A 1 O A e gt 13 5 OE O Ml cccessssssessesssecsessesstecnssssessssatensesseeneenses 13 Mower Blade Replacement cccccccescscesecescscssecesescsvecssesesseceseeeseevaseersevevnenteveranes 14 gt elo AP een 14 D Wheel Drive Control Adjustment vice ee cee ccceeccesseccssesessecesseeesenesceesenseseenneseneens 15 Driven and Drive Digg Sise N ueeneeeeseeeeseenensnnennennnnnnnnnnnnnnnnnnenennnnen 16 Belt Service eee E ccoo rociar 19 Engine Drive nn A 19 Transmission Belt Replacement ooocccconcccccnooccnononcnononcnononcnonnononononanonanannnnonnnononns 20 VIGO COC UNG oO o gaits nt 21 cD Y o PP OIE OO ESO EEE 22 5 PP En un E 28 A WARNING A A WARNING A Battery posts terminals and related accessories contain Engine exhaust some of its constituents and certain lead and lead compounds chemicals known to the State vehicle components contain or emit chemicals known to of California to cause cancer and birth defects or other the State of California to cause cancer or other reproductive reproductive harm Wash hands after han
15. Operator s Manual SNAPPER 21 STEEL DECK W gt gt Ac WALK MOWERS N SERIES 20 Model No Description 7800596 217020B 7800597 P217020B 7800600 N217020B 7800601 NP217020B 7800602 RP217020 NOTE Specifications are correct at time of printing and are subject to change without notice Actual sustained engine power will likely be lower due to operating limitations and environmental factors Please refer to Engine Power Rating Information for further details SNAPPER o GA 30253 U S A Manual No 7103934 Rev 10 20 2009 Thank You for purchasing this quality built Snapper product We re pleased that you placed your confidence in the Snapper brand When operated and maintained according to the instructions in this manual your Snapper product will provide many years of dependable service This manual contains safety information to make you aware of the hazards and risks associated with the machine and how to avoid them This machine is designed and intended only for finish cutting of established lawns and is not intended for any other purpose It is important that you read and under stand these instructions thoroughly before attempting to start or operate this equipment Save these instructions for future reference PRODUCT REGISTRATION IMPORTANT KEEP THIS INFORMATION FOR YOUR PERSONAL RECORDS Complete the following information on your Snapper purchase Date of Purchase Retailer Retailer
16. alteration abuse improper lubrication normal wear or other cause beyond the control of SNAPPER This warranty does not cover any machine or com ponent part that has been altered or modified changing safety performance or durability Batteries have a one 1 year warranty period with free replacement if required for one 1 year from the original purchase date SNAPPER will not be responsible for any installation cost incurred The battery warranty only covers original equipment batteries and does not cover damage to the battery or machine caused by neglect or abuse destruction by fire explosion freezing overcharging improper maintenance or use of improper electrolyte There is no other express warranty DISCLAIMER OF WARRANTY Implied warranties including those of merchantability and fitness for a particular purpose are limited to two 2 years from purchase date for the original purchaser s residential or other non commercial use and ninety 90 days from purchase for the original purchaser s commercial rental or other non residential use and to the extent permitted by law any and all implied warranties are excluded This is the exclusive remedy Liabilities for consequential damages under any and all warranties are excluded some states do not allow limitations on how long an implied warranty lasts or do not allow the exclusion or limitation of inci dental or consequential damages so the above limitation or exclusion may not appl
17. ark plug down Oil from the crankcase will saturate the air filter and cause the engine to be hard to start or not start at all If contamination does occur the air filter will have to be replaced Figure 13 Draining the engine oil 3 Dispose of drain oil properly 4 Fill the engine with oil as specified in the Engine Manual Do not overfill 12 Check Grease Level in Transmission 1 Remove the transmission fill plug A Figure 14 Roll the machine forward or backward while looking down into the plug hole 2 If liquid grease is not visible on the input gear the small gear below the plug hole add an amount to cover the gear of Snapper 00 grease Figure 14 Removing the transmission fill plug Note Snapper O00 grease Part No 7029443 is available at your Snapper dealer Note Do not spill grease or oil onto the surface of the drive disc A Figure 15 a Figure 15 Location of the drive disc 3 Reinstall the transmission plug 4 Check the grease level after each 25 hours of operation Important Drain the fuel tank before tipping the mower DO NOT tip the machine with the carburetor or spark plug down Oil from the crankcase will saturate the air filter and cause the engine to be hard to start or not start at all If contamina tion does occur the air filter will have to be replaced wwWw snapper com Maintenance Continued A WARNING A DO NOT attempt any maintenance adjust
18. ce engine and make adjustments only when engine is stopped Removed spark plug wire from spark plug and Secure wire away from spark plug to prevent accidental Starting 7 DO NOT change engine governor speed settings or overspeed engine 8 Check grass bag assembly frequently for wear or dete rioration to avoid thrown objects and exposure to moving parts Replace with new bag if loose seams or tears are evi dent Replace slider or bag adapter if broken or cracked 9 Mower blades are sharp and can cut Wrap the blades or wear heavy leather gloves and use CAUTION when handling them 10 DO NOT test for spark by grounding spark plug next to Spark plug hole spark plug could ignite gas exiting engine 11 Have machine serviced by an authorized SNAPPER dealer at least once a year and have the dealer install any new safety devices 12 Use only genuine SNAPPER replacement parts to assure that original standards are maintained p 3 T N a gt EJ ws a LL Features and Controls IMPORTANT The figures and illustrations in this manual are provided for reference only and may differ from your specific model Contact your Snapper dealer if you have questions Features and Controls Oil Fill Cap and Dipstick Fuel Filler Cap Recycling Cover Rear Height Adjustment Latch 2 Front Height Adjustment Latch 2 mu gt Blade Control Rope Start Handle Ground Speed Control Drive Wheel Cont
19. dling harm d a ca amp Y jad SS Sa a a 4 Important Operator Safety Instructions WARNING This powerful cutting machine is capable of amputating hands and feet and can throw objects that can cause injury and damage Failure to comply with the following SAFETY instructions could result in serious injury or death to the operator or other persons The owner of the machine must understand these instructions and must allow only persons who understand these instructions to operate machine Each person operating the machine must be of sound mind and body and must not be under the influence of any substance which might impair vision dexterity or judgment If you have any questions pertaining to your machine which your dealer cannot answer to your satisfaction call or write the Customer Service Department at SNAPPER McDonough Georgia 30253 Phone 1 800 935 2967 Protection for Children Tragic accidents can occur if the operator is not alert to the presence of children Children are often attracted to the machine and the mowing activity Never assume that children will remain where you last saw them 1 KEEP children out of the mowing area and under the watchful care of a responsible adult other than the operator 2 DO NOT allow children in yard when machine is operated and turn machine OFF if anyone enters the area 3 DO NOT allow pre teenage children to operate machine 4 ALLOW only responsible adults amp
20. e 26 Proper driven disc adjustment a UCUSIUIeIN Figure 27 Adjusting the transfer rod Driven Disc Replacement If the rubber on the driven disc is badly chunked or worn it must be replaced Install a new driven disc as follows 1 Remove the pin and washer C Figure 25 from the transfer rod D and remove the end of the transfer rod from the hole in the driven disc assembly 17 Maintenance Continued A WARNING A DO NOT attempt any maintenance adjustments or service with engine and blade running STOP engine and blade Disconnect spark plug wire and secure away from spark plug Engine and components are HOT Avoid serious burns allow sufficient time for all components to cool Driven Disc Replacement Continued 2 Using needle nose pliers unhook the drive spring A Figure 28 and slide the driven disc assembly off the hex shaft 3 Remove the two snap rings A Figure 29 which secure the rubber driven disc B to the driven disc assembly 4 Install a new rubber driven disc onto the driven disc assembly and secure with the retaining rings 5 Reverse the above procedures for reassembly and installation of the driven disc assembly N N 1 an TOS E Maintenance Figure 28 Removing the driven disc assembly 18 Driven Disc Bearing Replacement IMPORTANT The bearing on these machines is staked into the thrust plate The bearing will have to be driven out with a mallet and a large p
21. ed torque should be 40 ft Ibs Wheel Drive Control Adjustment Self Propelled Models Only 1 The wheel drive control is properly adjusted when there is 1 16 to 1 8 clearance G Figure 21 between the inside of the spring hook E and the inside of the clutch cable eye C with the wheel drive control released Note The vinyl spring cover B should be kept over the spring at all times except for adjustments 4 OA u Figure 21 Wheel drive control adjustment To adjust unhook the upper spring D from the cable eye and rotate the spring in the direction required to extend or shorten the spring length Rehook the upper spring to the cable eye and check clearance Repeat the procedure if required 33U2U3JUIE A If the wheel drive control fails to return quickly to the OFF position when released check for binding at the cable holdings located on the side of the right handle The upper clip should be located 2 below the upper knob the lower clip should be 4 above the lower knob The cable should slide freely with the clips installed at these locations 15 Maintenance Maintenance Continued A WARNING A DO NOT attempt any maintenance adjustments or service with engine and blade running STOP engine and blade Disconnect spark plug wire and secure away from spark plug Engine and components are HOT Avoid serious burns allow sufficient time for all components to cool Driven
22. emove the driven disc Refer to the Section entitled Replacing Driven Disc Rubber Ring 2 Note the routing of the old belt around the three pulleys before removing it 3 Place the new Poly V Belt A Figure 33 over the end of the hex shaft B and onto the drive pulley C 4 Work the belt onto the top of the idler pulley D 5 Twist the belt sideways and pull it upward between the differential bracket E and driven pulley F and then down into the pulley groove Make sure the Poly V Belt is above the belt guide G Figure 33 Poly v belt routing WWW snapper com Service Schedule ITEM SERVICE REF EACH 5 25 50 100 EACH PERFORMED USE HRS HRS HRS HRS SEASON Engine Oil Check Oil Level Page X Initial Oil Change Page 12 X Periodic Oil Change Page 13 x Air Pre Cleaner Clean Sponge Element Engine Manual X Air Cleaner Clean or Replace Engine Manual x Spark Plug Replace Engine Manual X Engine Cooling Clean Shroud amp Fins Engine Manual nai System Drive Belts Check for Wear and Page 13 19 X X X Tension Mower Blade Check for wear Damage Page 14 X amp Replacement Mower Deck Clean Debris Page 7 X Accumulation Transmission Check Grease Level Page 12 X X Grease Periodic Grease Check Page 12 X Drive Disc Check for Wear Damage Page 15 18 X and Replacement Change oil every 25 hours when operating under heavy load or high temperatures
23. evious Column 4 Handle fuel with extra care Fuels are flammable and vapors are explosive Use only an approved fuel container DO NOT remove fuel cap or add fuel with engine running Add fuel outdoors only with engine stopped and cool Clean Spilled fuel and oil from machine DO NOT smoke 5 Check the area to be mowed and remove all objects such as toys wire rocks limbs and other objects that could cause injury if thrown by blade or interfere with mowing Also note the location of holes stumps and other possible hazards 6 Keep people and pets out of the mowing area Immediately STOP Blade Stop engine and Stop mower if anyone enters the area 7 Check shields deflectors switches blade controls and other safety devices frequently for proper operation and location 8 Make sure all safety decals are clearly legible Replace if damaged 9 Protect yourself when mowing and wear safety glasses a dust mask long pants and substantial footwear DO NOT mow barefooted or with sandals 10 Know how to STOP blade and engine quickly in preparation for emergencies 11 Use extra care when loading or unloading the machine into a trailer or truck 12 Check grass catcher components frequently for signs of wear or deterioration and replace as needed to prevent inju ry from thrown objects going through weak or torn spots Safe Handling of Gasoline To avoid personal injury or property damage use extreme care in handling gasoline
24. hile engine is running 2 STOP engine when crossing gravel drives walks or roads and under any conditions where thrown objects might be a hazard 3 Mow only in daylight or good artificial light 4 DO NOT operate mower while under the influence of alcohol or drugs 5 After striking a foreign object or if mower vibrates abnormally STOP the engine disconnect and secure spark plug wire Inspect the mower for any damage and repair the damage before starting 6 DO NOT mow near drop offs ditches or embankments Operator could lose footing or balance 7 STAY ALERT for holes and other hidden hazards Tall grass can hide obstacles Keep away from ditches wash outs culverts fences and protruding objects 8 DO NOT mow on wet grass Always be sure of your footing Keep a firm hold on the handle and walk never run Slipping could cause injury 9 ALWAYS stay behind handle when engine motor is running 10 DO NOT leave the machine with the engine running STOP BLADE and STOP ENGINE before leaving the opera tors position for any reason 11 Before cleaning repairing or inspecting make cer tain engine blade and all moving parts have STOPPED Disconnect and secure spark plug wire away from plug to prevent accidental starting 12 STOP engine and wait until the blade comes to com plete STOP before removing grass bag and or clearing grass A Operation Continued From Previous Column 13 DO NOT operate mower without the entire gras
25. ippings and debris under deck 5 Clean deck 6 Improper blade installed on deck 6 Install proper blade 7 Blade installed improperly on deck 7 Install blade properly Oil Leaking 1 Leaking engine case 1 Contact authorized dealer 2 Check and tighten drain plug 3 Make sure dip stick or oil filler cap is securely in place 22 wwWw snapper com NAPPER 2 YEAR LIMITED WARRANTY For two 2 years from purchase date for the original purchaser s residential non commercial use SNAPPER through any authorized SNAPPER dealer will replace free of charge except for taxes where applicable any part or parts found upon examination by the factory at McDonough Georgia to be defective in material or workmanship or both For ninety 90 days from purchase date for the original purchaser s commercial rental or other non residential use SNAPPER through any authorized SNAPPER dealer will replace free of charge any part or parts found upon examination by the factory at McDonough Georgia to be defective in material or workmanship or both All transportation costs incurred by the purchaser in submitting material to an authorized SNAPPER dealer for replacement under this warranty must be paid by the purchaser This warranty does not apply to certain transmissions to engines and their components and batteries as these items are warranted separately This warranty does not apply to parts that have been damaged by accident
26. ments or service with engine and blade running STOP engine and blade Disconnect spark plug wire and secure away from spark plug Engine and components are HOT Avoid serious burns allow sufficient time for all components to cool Wear heavy leather gloves when handling or working around cutting blades Blades are extremely sharp and can Cause severe injury Check Mower Blade 1 Disconnect the spark plug wire and secure the end away from the plug 2 Tilt the mower up on its rear wheels for access to the blade cap screw A Figure 16 Do not tilt the mower with the spark plug or carburetor down Important Drain the fuel tank before tipping the mower DO NOT tip the machine with the carburetor or spark plug down Oil from the crankcase will saturate the air filter and cause the engine to be hard to start or not start at all If contamina tion does occur the air filter will have to be replaced 3 Check the torque of the blade cap screw Recommended torque should be 40 ft Ibs 4 Check the blade for sharpness wear and damage Refer to the Section entitled Blade Wear Limits Figure 16 Tightening the blade cap screw Check Engine Drive Belt 1 Visually check the engine drive belt for cracking fraying Severed or exposed belt strands If worn or damaged replace the belt before operating the mower Check Transmission Poly V Belt 1 Visually check the poly v belt for cracking fraying severed or exposed belt strands
27. ot operate the unit on a slope that is greater than 10 degrees A 15 degree slope is a hill that increases in height at approximately 2 5 feet in 10 feet A 10 degree slope is a hill that increases in height at approximately 1 7 feet in 10 feet Operate a riding mower up or down slopes never across the face of slopes o we E YEr Y 0 ote ewe TUE tw r At a a 30 Use extreme care at all times and avoid sudden turns or maneuvers Follow other instructions in this manual for safety in mowing on slopes Operate a riding mower up or down slopes never across the face of slopes Operate a walk behind mower across the face of slopes never up or down slopes Use extra care when operating on or near slopes and obstructions 25 Notes 26 www snapper com Notes 27 SNAPPER 21 STEEL DECK WALK MOWERS SERIES 20 Product Specifications Common Service Parts Part Number Deck Size 21 in Cutter Blade 7026691 Height of Cut 1 25 4 in Cutter Blade Ninja Quad 7026407 Transmission Type Self Propelled Models Gear Drive Belt Engine 7046784 Ground Speed Self Propelled Models 1 4 mph Drive Belt Transmission 7012354 Engine Power 7 0 ft lbs gross Parts Manual 7006477 Engine Displacement 190 cc Fuel Tank Capacity 1 6 at Engine Power Rating Information The gross power rating for individual gas engine models is labeled in accordance with SAE Society of Automotive Engineers code J1940 Small Engine Power amp Torque
28. peration A WARNING A DO NOT operate without entire Grass Catcher or guard in place Grass Catcher components are subject to deterioration during normal use Inspect frequently and replace worn or damaged components immediately 11 Maintenance Maintenance Maintenance Introduction To retain the quality of the mower use genuine SNAPPER replacement parts only Contact a local SNAPPER dealer for parts and service assistance For the correct part or information for a particular mower always mention the model and serial number A WARNING A DO NOT attempt any maintenance adjustments or service with engine and blade running STOP engine and blade Disconnect spark plug wire and secure away from spark plug Engine and components are HOT Avoid serious burns allow sufficient time for all components to cool Wear heavy leather gloves when handling or working around cutting blades Blades are extremely sharp and can Cause severe injury Service After First 5 Hours Poo Engine Oil Refer to the Engine Manual for proper oil specifications procedures and proper service intervals 2 For the simplest cleanest oil change simply turn the mower on its side to drain the oil as shown Drain the oil through the dipstick tube A Figure 13 into a container Allow sufficient time for all the oil to drain Important Drain the fuel tank before tipping the machine DO NOT tip the machine with the carburetor or sp
29. rol Engine Speed Control WWW snapper com Operation Pre Start Check List Make the following checks and perform the service required before each start up 1 Check the guards deflectors grass bag adapter and covers to make sure all are in place and securely tightened 2 Check the blade control A Figure 1 wheel drive control B and ground speed control C to insure they work freely 3 Check the cutting height Adjust to the desired height Refer to the Section entitled Cutting Height Adjustment 4 Check the engine oil A Figure 2 and add oil as needed to bring the level up to the full mark Refer to the Engine Owner s Manual for oil specifications Figure 2 Oil and fuel fill 5 Add fuel to the tank after pushing the mower outside where fumes can safely dissipate Fill the tank to 1 1 2 inches below the top of the filler neck to allow for fuel expansion Make sure the cap B Figure 2 is tightened after fueling Refer to the Engine Owners Manual for fuel specifications 6 Clean the exterior surfaces of the cutting deck and engine of any accumulation of spilled fuel dirt grass oil etc Keep the engine air intake screen and cooling fins clear at all times Starting and Operation Engine and Blade Briggs Quantum Series Engines 1 Move the engine speed control to the fast Rabbit position NOTE Briggs Quantum Series engines are equipped with a Ready Start feature and thus do no
30. s catcher or guards in place discharge guard rear guard or other safety devices in place and working DO NOT point discharge at people passing cars windows or doors 14 DO NOT discharge material against a wall or obstruc tion Material may ricochet back towards the operator 15 Slow down before turning 16 Watch out for traffic when near or crossing roadways 17 DO NOT operate engine in enclosed areas Engine exhaust gases contain carbon monoxide a deadly poison 18 Only use accessories approved by the manufacturer See manufacturer s instructions for proper operation and installation of accessories yajes 10 e19d0 Maintenance and Storage 1 DO NOT store mower or fuel container inside where fumes may reach an open flame spark or pilot light such as in a water heater furnace clothes dryer or other gas appli ance Allow engine to cool before storing machine in an enclosure Store fuel container out of reach of children in a well ventilated unoccupied building 2 Keep mower and engine free of grass leaves or excess grease to reduce fire hazard and engine overheating 3 When draining fuel tank drain fuel into an approved container outdoors and away from open flame 4 Keep all bolts especially blade bolts nuts and screws properly tight Check that all cotter pins are in proper position 5 Always provide adequate ventilation when running engine Engine exhaust gases contain carbon monoxide a deadly poison 6 Servi
31. s Phone Number Equipment Model Number Serial Number Engine Model Type Trim SNAPPER is a trademark of Briggs amp Stratton Yard Power Products Group Briggs amp Stratton Power Products Group LLC Copyright 2009 Briggs amp Stratton Corporation Jefferson WI USA Milwaukee WI USA All Rights Reserved Table of Contents cD pa Fr N fes a cD Fr Operator Safely unennnssnsseseesesesseesnsnennsnunnnnennnnnnnnnnnnnnnnnnnunnnsennnnnnunnnnennsennunennnnennnnnnnnnnnnn 4 Important Operator Safety Instructions Siurana da 4 FUE SS AAG GONT ONG enges o OS OI A 6 0 072 1 0 9 ee een ee E 7 D Pre Start CheckliSt ooo oonnnnnnnnnnnnnicinnicinnccnnnracnnrann nac nrnrnrn arrancan rra rara 7 Starting amp Stopping Engine Blade tarse dvi 7 A Propelling MOWED onccconincconincccnoninocanonccrnc narra narano no rano cr rraro rara ro rana carr 8 Handle Height Adjustment c cccceccsccscsesecesseseseceseesesesececerseserevevevsesevaverecseeaeaveneenes 8 Cutting Height AdjuStMeNt oonnoninncnonnnniconncnnnnnnncnrcc nana nona nono roca or corr caro ron anar nancni nos 9 S FE CY CHIC ODE rI O araea E E rege 9 o Removing the Recycling COV T ooooconnoccccocccconcconononincnononanonnonancnrnrn nono nnn non nnnannnnnnnnnno 9 mstallino the Disehargo DONE OR een nee 10 Installing the Grass Bag Adapter ooocoonccccoccccnonccinonononcnononononnnononcnonanoroncncnnanannnons 10 I
32. ss Catcher components are subject to deterioration during normal use Inspect frequently and replace worn or damaged components immediately wwWw snapper com Operation Continued Installing the Grass Ba A WARNING Ye y 1 r Type Bag DO NOT attempt any maintenance adjustments or service Install the a bag adapter Refer to the Section with engine and blade running STOP engine and blade entitled Installing the Grass Bag Adapter Disconnect spark plug wire and secure a rom spark 2 Install the grass bag by sliding the connector A Figure plug Engine and components are HOT Avoid serious 12 over the adapter flange burns allow sufficient time for all components to cool 3 Attach the grass bag hooks B over the middle handle cross bar Installing the Recycling Plug Optional Accessory on Some Models 1 Install the recycling plug A Figure 11 if recycling is desired after the bag adapter is installed Install the recycling plug completely and securely into the bag adapter B uone1ado A WARNING A Grass Catcher bags used on SNAPPER products are made of woven fabric and are subject to deterioration and wear during normal usage Check condition of bag before each use Immediately replace worn or damaged catcher bags with only bags recommended by SNAPPER The grass catcher is optional equipment on some models 2 Install the grass bag as a safeguard 3 Refer to the Section entitled Recycling O
33. t feature a primer button 2 Pull the blade control A Figure 3 against the handle 3 Start the mower Pull the rope start handle B to crank the engine 4 After the engine starts allow a brief warm up until the engine runs smooth before beginning mower operation NOTE To stop the engine and blade release the blade control uone1ado Operation Operation Continued Starting and Operation Continued Propelling the Mower Self Propelled Models Only 1 Start the engine Refer to the Section entitled Starting and Operation Engine and Blade 2 Move the ground speed control A Figure 4 to the desired speed position 3 Squeeze the wheel drive control B against the handle to engage the wheel drive and propel the mower forward Forward speed can be adjusted while the mower is moving by changing the position of the ground speed control Figure 4 Mower drive controls Stopping 1 Stop forward motion of the mower by releasing the wheel drive control 2 Stop the engine and blade by releasing the blade control Handle Height Adjustment The height of the mower handle can be adjusted as follows 1 Loosen the lower nuts A Figure 5 on each lower handle ff Figure 5 Adjusting the handle height 2 Move the handle assembly B up or down until the desired position is achieved 3 Tighten the lower nuts on each lower handle to maintain the desired position A WARNING A DO NOT attempt
34. t speed Setting 4 Proceed mowing slowly If the grass is very dense lower each rear wheel latch one notch lower than the front wheel latches to improve recycling performance Note The recycling cover should remain on the machine at all times unless alternate discharge operations are desired such as side discharging or bagging Removing the Recycling Cover Optional Accessory on Some Models 1 Remove the knob nuts A Figure 8 and internal external tooth lock washers B securing the recycling cover C to the mower deck 2 Remove the cover uone1ado Figure 8 Removing the recycling cover Operation Operation Continued A WARNING A DO NOT attempt any maintenance adjustments or service with engine and blade running STOP engine and blade Disconnect spark plug wire and secure away from spark plug Engine and components are HOT Avoid serious burns allow sufficient time for all components to cool Installing the Discharge Deflector 1 Remove the recycling cover Refer to the Section enti tled Recycling Operation 2 Install the deflector A Figure 9 to the deck in place of the recycling cover making sure that The front hole B on the outside front of the deflector fits over the stud where the front of the recycling cover was originally secured The slot C on top of the deflector slips under the restraining nut on top of the deck under the right front corner of the engine The slot
35. the mower in a shed or other dry area protected from weather 39ueuawu eN 13 Maintenance Maintenance Continued A WARNING A DO NOT attempt any maintenance adjustments or service with engine and blade running STOP engine and blade Disconnect spark plug wire and secure away from spark plug Engine and components are HOT Avoid serious burns allow sufficient time for all components to cool Wear heavy leather gloves when handling or working around cutting blades Blades are extremely sharp and can Cause severe injury Mower Blade Replacement Standard Blade Wear Limit Figure 18 Ninja blade wear limits 1 Inspect the blade Figure 17 frequently for signs of excessive wear or damage re Sharpening A New blade Disconnect the spark plug wire and secure the end away B Wear limit notch starts from the plug C Dangerous condition Do not use on the mower 2 Tilt the mower up on its rear wheels Do not tilt the Replace with a new blade mower with the spark plug or carburetor down Important Drain the fuel tank before tipping the mower DO NOT tip the machine with the carburetor or spark plug down Oil from the crankcase will saturate the air filter and cause the engine to be hard to start or not start at all If contamina tion does occur the air filter will have to be replaced 3 Remove the blade B Figure 19 Make sure that blade hub is seated between flanges Figure 17 Standard blade wear limits
36. unch A new bearing with four retaining screws will have to be purchased to replace existing bearing If the driven disc bearing requires replacement replace the bearing as follows 1 Remove the driven disc assembly Refer to the Section entitled Driven Disc Replacement 2 Remove both snap rings A Figure 29 that secure the rubber driven disc B to the thrust plate 3 Slide the rubber driven disc hub out of the bearing 4 Drive out the existing bearing C 5 Install a new bearing and secure to the thrust plate with four retaining screws Tighten the screws securely 6 Reassemble the components in reverse order NOTE Be sure to replace the shim washer D when reassembling the driven disc assembly Figure 29 Replacing the driven disc WWW snapper com Maintenance Continued A WARNING A DO NOT attempt any maintenance adjustments or service with engine and blade running STOP engine and blade Disconnect spark plug wire and secure away from spark plug Engine and components are HOT Avoid serious burns allow sufficient time for all components to cool Replacing the Bearing On the Pulley End Of the Hex Shaft To replace the bearing on the pulley end of the hex shaft proceed as follows 1 Hold the hex shaft with an adjustable wrench held next to the pulley 2 Remove the 3 8 hex lock nut B Figure 30 located on the outside of the right wheel bracket 3 Remove the holder A O ring C and bearing
37. y to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state WARNING THE USE OF REPLACEMENT PARTS OTHER THAN GENUINE SNAPPER PARTS MAY IMPAIR THE SAFETY OF SNAPPER PRODUCTS AND WILL VOID ANY LIABILITY AND WARRANTY BY SNAPPER ASSOCIATED WITH THE USE OF SUCH PARTS IMPORTANT Please fill out the attached SNAPPER Product Registration Card immediately and mail to Snapper s Product Registration Center P O Box 1379 McDonough Georgia 30253 23 Notes 24 www snapper com SLOPE GUIDE 1S DEGRE SIGHT AND HOLD THIS GUIDE LEVEL WITH A VERTICAL TREE Tun ES A CORNER OF A STRUCTURE A POWER LINE POLE OR A FENCE ose er Ley Dr o m yr te u E A E O A 1 Vie SWAG ee a E 4 1 AVS a eg aw ER D es y e ES E im PRE MO NSS Icon ner un re NENNE N ar baad tah hb Be Be tee U Operate a walk behind mower across the face of slopes never up or down slopes A a r 4 LER 10 DEGREES 15 DEGREES On a riding mower to determine if a slope is safe to mow 1 disengage the blade s 2 put the unit in reverse and 3 try to back straight up the slope If you can back up the slope it is generally safe to mow However if you do not feel safe or if you are not completely sure use this guide and do not mow a slope that is greater than 15 ler If the riding mower is used with a pull behind or rear mounted attachment do n
Download Pdf Manuals
Related Search