Craftsman Model 917 203901 Owners Manual

The Craftsman Model 917 203901 is a riding lawn mower designed for residential use, featuring a powerful engine, durable cutting deck, hydrostatic transmission, and ergonomic controls for comfortable operation. This manual provides essential information for safe operation, maintenance, troubleshooting, and specifications to ensure optimal performance and longevity of your equipment.

1. Features at a Glance 2. Safety Instructions 3. Assembly & Setup 4. Specifications 5. Controls and Operation 6. Maintenance Schedule 7. Engine Care 8. Blade Maintenance 9. Storage Guidelines 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: Engine, cutting deck, transmission, steering system, seat, and control panel.

FeatureDescription
EnginePowerful gasoline engine with electric start
Cutting DeckSteel construction with adjustable cutting height
TransmissionHydrostatic drive for smooth speed control
SteeringWheel steering with responsive handling
SeatPadded seat with adjustable position
Control PanelIncludes ignition, throttle, choke, and blade engagement
Fuel TankLarge capacity for extended operation
Brake SystemParking brake and foot pedal brake
Deck EngagementLever or electric PTO for blade control
TiresPneumatic tires for traction and stability

Safety Instructions

Read all instructions before operating. Always wear appropriate safety gear.

  1. Clear mowing area of debris, rocks, and toys before starting.
  2. Never allow children or untrained persons to operate the mower.
  3. Do not mow on steep slopes or wet grass to prevent tipping or slipping.
  4. Keep hands and feet away from moving parts, especially the cutting deck.
  5. Always turn off engine and remove key before performing maintenance.

WARNING! Gasoline is flammable; refuel outdoors with engine off and cool. Avoid sparks or flames.

Assembly & Setup

Unpack and inspect all parts. Follow assembly steps carefully.

  1. Attach steering wheel: Align and secure with provided hardware.
  2. Install seat: Bolt seat to frame using included bolts and washers.
  3. Connect battery: Attach cables to battery terminals (red to positive, black to negative).
  4. Check tire pressure: Inflate to recommended PSI (see specifications).
  5. Add engine oil and fuel: Use types specified in manual.

CAUTION! Use proper tools and torque specifications. Ensure all bolts are tight before operation.

Specifications

Controls and Operation

Familiarize yourself with all controls before starting the engine.

Control Panel: Ignition switch, throttle/choke, PTO (blade engage), brake pedal, parking brake lever, steering wheel.

Starting Procedure: 1. Sit on seat. 2. Set parking brake. 3. Move throttle to choke position. 4. Turn ignition key to start. 5. After engine starts, adjust throttle to desired speed. Mowing: Engage PTO lever to lower and start blades. Drive: Release parking brake, press brake pedal to release, then use forward/reverse pedal to move. Stopping: Disengage PTO, move to neutral, set parking brake, turn off ignition.

Maintenance Schedule

Regular maintenance ensures performance and safety.

  1. Before each use: Check tire pressure, fuel level, and for loose parts.
  2. Every 8 hours: Check engine oil level; clean cutting deck.
  3. Every 50 hours: Change engine oil; replace oil filter; check air filter.
  4. Every 100 hours: Replace spark plug; check blade condition and sharpness.
  5. Seasonally: Lubricate moving parts; check battery charge; inspect belts.

Tip: Keep a maintenance log to track service intervals.

Engine Care

Proper engine maintenance is critical for reliability.

  1. Oil Change: Use SAE 30 detergent oil. Drain when warm; refill to proper level.
  2. Air Filter: Clean foam pre-cleaner every 25 hours; replace paper element annually.
  3. Spark Plug: Gap at 0.030 inches; replace if worn or fouled.
  4. Fuel System: Use fresh gasoline; add fuel stabilizer for storage; replace fuel filter yearly.
  5. Cooling System: Keep cooling fins and shrouds clean of debris.

WARNING! Engine parts become hot during operation. Allow to cool before servicing.

Blade Maintenance

Sharp, balanced blades ensure a clean cut and reduce engine strain.

  1. Disconnect spark plug wire before blade service.
  2. Remove blade bolt and washer; note orientation for reinstallation.
  3. Sharpen blade evenly using a file or grinder; maintain original angle.
  4. Check balance by hanging blade on a nail; remove metal from heavy side.
  5. Reinstall blade with cutting edge toward ground; torque bolt to specification.

CAUTION! Wear heavy gloves when handling blades. Replace if cracked or badly worn.

Storage Guidelines

Proper storage prevents damage and extends equipment life.

End-of-Season: 1. Clean entire mower, especially underside of deck. 2. Change oil and filter. 3. Add fuel stabilizer and run engine for 5 minutes. 4. Remove battery and store in cool, dry place on a charger. 5. Store in a dry, covered area, preferably on blocks to relieve tire pressure.

CAUTION! Do not store with fuel in tank for more than 30 days without stabilizer. Keep away from open flames.

Warranty Information

Craftsman Model 917 203901 is covered by a 2-year limited warranty for residential use. Warranty covers defects in materials or workmanship when used and maintained as instructed. Not covered: normal wear, misuse, neglect, commercial use, or improper maintenance. For warranty service, contact an authorized Craftsman service center with proof of purchase. For support, visit www.craftsman.com or call 1-888-331-4569.

Troubleshooting

SymptomPossible CauseCorrective Action
Engine won't startNo fuel, bad spark, dead batteryCheck fuel level; inspect spark plug; charge or replace battery.
Poor cutting performanceDull blades, low engine speedSharpen or replace blades; adjust throttle to full speed.
Excessive vibrationUnbalanced blade, loose partsBalance or replace blade; tighten bolts and fittings.
Loss of powerClogged air filter, old fuelClean or replace air filter; drain and replace gasoline.
Hydrostatic transmission issuesLow fluid, linkage adjustmentCheck fluid level; adjust control linkage per manual.

Reset: For safety switches, ensure seat is occupied and PTO disengaged when starting.

Service: 1-888-331-4569; www.craftsman.com

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