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Craftsman 917.377621 Owner's Manual

6.75 horsepower 21" rear discharge power propelled rotary lawn mower
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Owner's Manual
CRAFTSMAN °
6.75 HORSEPOWER
21" REAR DISCHARGE
POWER PROPELLED
ROTARY LAWN MOWER
Model No.
917.377621
•
Safety
•
Assembly
•
Operation
•
Maintenance
•
EspaSol
•
Repair Parts
CAUTION:
Read and follow all
Safety Rules and Instructions
before operating this equipment
Sears, Roebuck and Co., Hoffman Estates, IL 60179

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Summary of Contents for Craftsman 917.377621

  • Page 1 Owner's Manual CRAFTSMAN ° 6.75 HORSEPOWER 21" REAR DISCHARGE POWER PROPELLED ROTARY LAWN MOWER Model No. 917.377621 • Safety • Assembly • Operation • Maintenance • EspaSol • Repair Parts CAUTION: Read and follow all Safety Rules and Instructions before operating this equipment...

  • Page 2: Table Of Contents

    Warranty service is available by returning the Craftsman power mower to the nearest Sears Service Center/Department in the United States. This warranty applies only while this product is in use in the United States.

  • Page 3: Operation

    hot. Allow the engine to cool for several • Never cut grass by pulling the mower towards you. Mow across the face of minutes before filling the gas tank. Clean slopes, never up and, down or you might off any spilled gasoline before starting the lose your footing.

  • Page 4: Maintenance

    They arealso These accessories were available when this lawn mower was available at most Sears retail outlets and service centers. Most Sears stores can also order repair parts for you, when you provide the model number of your lawn mower. Some of these accessories may not apply to your lawn mower.
  • Page 5 TO INSTALL ATTACHMENTS Operator presence control bar Lift up Your lawn mower was shipped ready to be Upper handle used as a mulcher. To convert to bagging Lift up or discharging: • Open rear door and remove mulcher plug. Store mulcher plug in a safe Mowing place.
  • Page 6 KNOW YOUR LAWN MOWER READ THIS OWNER'S MANUALAND SAFETY RULES BEFORE OPERATING YOUR LAWN MOWER. Compare the illustrations with your lawn mower to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference. These symbols may appear on your lawn mower or in literature supplied with the product. Leam and understand their meaning.
  • Page 7 TO ATTACH GRASS CATCHER The operation of any lawn mower can result in • Lift the rear door of the lawn mower and foreign objects thrown into the eyes, which can result insevereeye damage, Always wear place the grass catcher frame hooks intothe slots of the rear door.
  • Page 8 • Change TO START ENGINE the oil after every 25 hours of operation or each season. You may need • To start a cold engine, push primer five to change the oil more often under dusty, (5) times before trying to start. Use a dirty conditions.
  • Page 9 MULCHING MOWING TIPS • For best results, adjust the lawn mower cutting height so that the lawn mower cuts IMPORTANT: For best performance, keep off only the top one-third of the grass blades. mower housing free of built-up grass and If the lawn is overgrown itwill be necessary trash.
  • Page 10 .A,NTENANCE SCHEDULE FILL IN DATES ,_._..,I, SERVICE DATES REGULAR SERVICE ICE O Check forLoose Fasteners Clean/Inspast Grass Catcher Clean Lawn Mower (Power-PropelledMowers) O, Clean Under Drive Cover (Power-Propelled Mowers) RE Check drive beWpulleys CheclVSharpen/Replace Blade _b/s LubricationChart Clean Battery/Recharge IElectric Start Mowers! Check Engine Oil Level Change Engine Oil t/1.2...

  • Page 11: Product Specifications

    PRODUCT SPECIFICATIONS MODEL NUMBER 917.377621 SERIAL NUMBER DATE OF PURCHASE HORSEPOWER: 6.75 DISPLACEMENT: 12.56 CU. IN. GASOLINE CAPACITY/TYPE: 1.25 QUARTS UNLEADED REGULAR OIL TYPE (API-SF/SG/SH): SAE 30 (ABOVE 32°F) SAE 5W-30 (BELOW 32°F) OIL CAPACITY: 20 OZS. SPARK PLUG(GAP: .030") CHAMPION RN4C VALVE CLEARANCE:...
  • Page 12 NOTE: We do not recommend sharpening • The pinion gear must be installed with blade - but if you do, be sure the blade is the left gear on the left side and with the balanced. right gear on the right side, from an operator's view.
  • Page 13 MUFFLER TO CHANGE ENGINE OIL Inspect and replace corroded muffler as it NOTE: Before tipping lawn mower to drain oil, could create afire hazard and/or damage. drain fuel tank by running engine until fuel tank SPARK PLUG is empty. Change your spark plug each year to make •...

  • Page 14: Service And Adjustments

    CAUTION: B EFORE PERFORMINGANY Handle pin SERVICE OR ADJUSTMENTS: Med.- • Release control bar. 3-position • Make sure the blade and all moving Handle parts have completely stopped. adjustment • Disconnect spark plug wire from bracket spark plug and place where it cannot come in contact with plug.
  • Page 15 Operator presence ENGINE OIL controlbar Drain oil (with engine warm) and replace with Lift up Upper handle clean engine oil. (See "ENGINE" in the Maintenance section of this manual). Liftup CYMNDER • Remove spark plug. • Pour one ounce (29 ml) of oilthrough spark Mowing Lower position...

  • Page 16: Troubleshooting

    TROUBLESHOOTING CHART PROBLEM CAUSE CORRECTION Doesnot start • Clean/replace air filter • Dirtyairfilter. • Out offuel. • Fill fuel tank. * • Stalefuel. • Drain tank and refillwith fresh dean fuel. • Water in fuel. • Drain fuel tank and carburetor and refilltank with fresh ga_ine.
  • Page 17 TROUBLESHOOTING CHART PROBLEM CAUSE CORRECTION Poor cut- uneven •Wom, bent or loose blade. • Replaceblade.Tighten bladebolt. • Set allwheelsat same • Wheel heights uneven. hekjht • Cleanunderside of • Buildupof grass, leaves and trash under mower mowerhousing. Exce6sive •Wom, bent or loose blade. •...
  • Page 18 ROTARY LAWN MOWER - - MODEL NO. 917.377621 PART PART DESCRIPTION DESCRIP_ON 163183 Bolt, Hex Head 5/16-18 x 5/8 164286 Handle, Upper DIxComf. 63124 Nut, Hex LockWshr 5/16-18 161105X479 Handle, Lower 161333 Baffle, Side Bail, ConL Wire DIxComf. BIk 131036 163409 Screw 12 x 5/8 153638...
  • Page 19 ROTARY LAWN MOWER - - MODEL NO. 917.377621...
  • Page 20 ROTARY LAWN MOWER - - MODEL NO. 917.377621 PART DESCRIPTION PART DESCRIPTION Cable Drive 161118X004 Retainer Ddve Asm. Stmp. 161587 . Screw Hex Head Tapping 1/4-20 Bail ControlDrive 57808 161473 x .75 161478X004 Bracket, Downstop Drive Pawl 83816 Screw Hex Wash Heed Tapping 10-2 164795 Pinion,Drive RH 161537...
  • Page 21 CRAFTSMAN _-CYCLE ENGINE MODEL NUMBER 143.986716...
  • Page 22 CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.986716 PART PART DESCRIPTION DESCRIPTION 36835A Cylinder (Incl. 2 & 20) 150 31672 Valve Sp_ng 2 26727 Dowel Pin 151 31673 Valve SpringCap 33734 Braather Element 153 36649 Push Red Guide 36557 RockerArm Stud Breather Ass'y. (Incl.6 & 12A)
  • Page 23 CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.986716 J;p--w PART DESCRIPTION ---- 640195 Carbureto_ (Ind. 184 of Engine Parts List) 631615 ThroWeShaft & Lever Assembly 631767 ThrottleReturn Spring 631184 " Dust Seal Washer 631183 • Du._ Se_ t'n_ot_e) Throtb Shutter 640070 65O5O6...
  • Page 24 CRAFTSMAN 4..CYCLE ENGINE MODEL NUMBER 143.986716 PART DESCRIPTION 590702 Recoil Starter 590599A SpringPin (Incl.4) Washer 59O6OO 59O696 Retainer 59O601 Washer 590697 Brake Spdng 590698 Starter Dog oog sp_ng 590699 590700 Pulley & Rewind Spdng Ass'y. 590703 Starter HousingAss'y. (40 degree grommet) 590535 Starter Rope ( 98"...
  • Page 26 Forthe repairor replacement partsyouneed delivered directlyto yourhome Call7 am- 7 pm,7 daysa week 1-800-366-PART (1-800-366-7278) Para ordenar piezas con entrega a domicilio - 1-800-659-7084 For in-house major brand repair service Call 24 hours a day, 7 days a week 1-800-4-REPAIR (1-800-473-7274) Para pedir servicio de reparacidn...