MTD 663, 643 manual 70 73 429

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Models 643 & 663

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60	78
60
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15

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	31	14	49	9
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Contents OPERATOR’S Manual Table of Contents Important Safe Operation Practices TrainingMaintenance and Storage Unpacking AssemblyAssembling Your Snow Thrower Loose PartsKnow Your Snow Thrower Operating Your Snow Thrower To Engage Augers To Stop EngineTo Engage Drive Recoil StarterChute Clean-Out Tool Drift Cutters If EquippedOperating Tips Making Adjustments Traction Control and Shift LeverAuger Control Shift Rod AdjustmentChute Assembly Skid ShoesMaintaining Your Snow Thrower LubricationEngine Belt Removal And ReplacementServicing Your Snow Thrower AugersReplacing Friction Wheel Rubber Drive BeltOff-Season Storage Trouble Shooting Trouble Possible Causes Corrective ActionModels 643 Part Description70 73 429 731-1300B Lower Chute Models 643 Models 643 Models 643 Models 643 2615 Drive Clutch Cable Auger Clutch Models 643 Page Page MANUFACTURER’S Limited Warranty for