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Snapper 20 manual

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Table of contents for the manual

  • Page 1

    Operator's Manual 7104669 Rev . ‘-’ 21” STEEL DECK WALK MOWERS C OMM ERCIAL MODELS SERIES 20 Mo d el No. D es cription 7800764 CRP218520 7800772 CP218520 ! Not for Reproduction[...]

  • Page 2

    Thank You for purchasing this quality-built Snapper product. W e’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 an[...]

  • Page 3

    3 Table of Contents Operator Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 F eatures an d Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 4

    www.snapper.com 4 ! W ARNING: 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[...]

  • Page 5

    5 O perator Safety Safe Han d ling of G asoline (Continue d F rom 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[...]

  • Page 6

    www.snapper.com 6 IMPO RTANT The figures and illustrations in this manual are provided for reference only and may differ from your specific model. Contact your dealer if you have questions. A. Oil Fill Cap and Dipstick B. Fuel Filler Cap C. Mulching Cover D. Rear Height Adjustment Latch (2) E. Front Height Adjustment Latch (2) F . Blade Control G. [...]

  • Page 7

    7 B efore Starting 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 , F igure 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 ent[...]

  • Page 8

    www.snapper.com 8 Propelling the Mower 1. Start the mower . 2. Move the ground speed control (A , F igure 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. For ward speed can be adjusted while the mower is moving by changing the position of the ground[...]

  • Page 9

    9 Cutting Height A d justment 1. Pull the height adjusting latch (A , F igure 6) outward and move to the desired cutting height. 2. Set all wheels at the same cutting height. The highest cutting position is Notch 7 (F igure 7) . The lowest cutting position is Notch 1. M ulching (Recycling) O peration Note: For best results, cut up to a maximum of 1[...]

  • Page 10

    www.snapper.com 10 Installing the D ischarge D eflector 1. Remove the mulching cover . Refer to the Section entitled “Mulching Operation”. 2. Install the deflector (A , F igure 9) to the deck in place of the mulching cover , making sure that: • The front hole (B) on the outside front of the deflector fits over the stud where the front of the [...]

  • Page 11

    11 Installing the M ulching Plug 1. Install the mulching plug (A , F igure 11) if mulching is desired after the bag adapter is installed. Install the mulching plug completely and securely into the bag adapter (B) . IMPORTANT: Install the grass bag as a safeguard. 2. Refer to the section entitled “Mulching Operation”. Installing the G rass B ag [...]

  • Page 12

    M aintenance - Intro d uction T o retain the quality of the mower , use genuine replacement parts only . Contact a local dealer for parts and service assistance. For the correct part or information for a particular mower , always mention the model and serial number . Service - After F irst 5 Hours Change Engine O il 1. Refer to the Engine Manual fo[...]

  • Page 13

    13 M aintenance Check M ower B la d e 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 , F igure 17) . 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 wi[...]

  • Page 14

    M ower B la d e Replacement Stan d ar d B la d e W ear Limit 1. Inspect the blade (F igure 18) frequently for signs of excessive wear or damage: (A) New blade (B) Wear limit (notch starts) (C) Dangerous condition! Do not use on the mower! Replace with a new blade. Ninja B la d e W ear Limit 1. Inspect the blade (F igure 19) frequently for signs of [...]

  • Page 15

    15 M aintenance B la d e Sharpening (Continue d) 4. Sharpen the blade on a grinding wheel at an angle of 22 to 28 degrees ( B, F igure 21) . DO NOT sharpen the blade beyond the original cutting edge (A) . 5. Check blade for balance. If necessary , correct balance by grinding heavy end of blade. 6. Reinstall blade ( B, F igure 20) . Note the correct[...]

  • Page 16

    D riven an d D rive D isc Service If the mower does not propel itself properly , check for the following problems: 1. Grease on the drive disc (A , F igure 23) 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 [...]

  • Page 17

    17 M aintenance D riven D isc A d justment (Continue d) 2. Remove the driven disc spring (A , F igure 26) 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 . 3. Slide the driven disc assembly over to 1/8” (A , F igure [...]

  • Page 18

    D riven D isc Ring Replacement (Continue d) 2. Using needle nose pliers, unhook the drive spring (A , F igure 29) and slide the driven disc assembly off the hex shaft. 3. Remove the five machine screws (A , F igure 30) and plate (B) which secure the rubber ring (C) to the driven disc hub (D) . 4. Install a new rubber ring. 5. Reverse the above proc[...]

  • Page 19

    19 M aintenance Replacing the B earing O n the Pulley End O f the Hex Shaft T o 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, F igure 32) , located on the outside of the right wheel bracket. 3. Remove the ho[...]

  • Page 20

    E ngine D rive B elt Replacement (Stretch Type B elts - Continue d) IMPORT ANT : 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 contamination does occur , the air filter [...]

  • Page 21

    21 Service Sche d ule IT EM SE RVIC E PER FO R MED REF. E ACH USE 5 HRS 25 HRS 50 HRS 100 HRS E ACH SE AS ON Engine Oil Check Oil Level Page 7 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 C[...]

  • Page 22

    PR OB LEM PR OB ABLE CA USE CO RR E CTIV E ACTI ON Engine Will Not Start Using Recoil Starter 1. Fuel tank empty . 1. Fill fuel tank with fresh fuel. 2. Spark plug wire disconnected. 2. Place spark plug wire onto spark plug. Engine Stalls or Stops After Running 1. Blade control is released or is not being held securely against handle. 1. Blade cont[...]

  • Page 23

    23 W arranty BRIGGS & STRA TTON POWER PRODUCTS GROUP , L.L.C. OWNER W ARRANTY POLICY LIMITED W ARRANTY Briggs & Stratton Power Products Group, LLC will repair and/or replace, free of charge, any part(s) of the equipment that is defective in material or workmanship or both. Briggs & Stratton Corporation will repair and/or replace, free o[...]

  • Page 24

    www.snapper.com 24 Notes Not for Reproduction[...]

  • Page 25

    25 Notes Not for Reproduction[...]

  • Page 26

    www.snapper.com 26 Notes Not for Reproduction[...]

  • Page 27

    27 Slope Guide Not for Reproduction[...]

  • Page 28

    www.snapper.com 1-800-935-2967 21” STEEL DECK WALK MOWERS C OMM ERCIAL MODELS SERIES 20 Power Rating : The gross power rating for individual gas engine models is labeled in accordance with SAE (Society of Automotive Engineers) code J1940 (Small Engine Power & T orque Rating Procedure), and rating per formance has been obtained and corrected i[...]