manual for craftsman lawn mower model 917

The Craftsman Lawn Mower Model 917 is a versatile walk-behind mower featuring a Briggs & Stratton engine, adjustable cutting heights, rear bagging capability, mulching option, and side discharge. It is designed for residential use with a 21-inch steel deck, single-lever height adjustment, and easy-start system. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 21-inch steel cutting deck, Briggs & Stratton engine, single-lever height adjustment, rear bagger, mulching plug, side discharge chute, and recoil start.

Assembly Instructions

Unpack and inspect all parts. Assemble on a flat, clear surface.

1. Attach the handle: Align lower handle brackets with deck mounts, secure with provided bolts and wing nuts.
2. Install the grass bag: Attach bagger frame to rear deck hooks, then clip bag onto frame.
3. Attach side discharge chute: If not mulching, secure chute to side discharge opening.
4. Install mulching plug: For mulching, insert plug into side discharge opening.
5. Add engine oil: Fill with SAE 30 detergent oil (check dipstick for level).
6. Add fuel: Use fresh unleaded gasoline (no more than 10% ethanol).

WARNING! Keep hands and feet clear of cutting blade during assembly. Ensure all fasteners are tight.

First-Time Setup

Prepare mower for first use after assembly.

1. Check oil level: Ensure oil is at full mark on dipstick.
2. Add fuel: Fill tank with fresh unleaded gasoline.
3. Set cutting height: Adjust single lever to desired height (middle setting recommended for first mow).
4. Select cutting mode: Install bagger, mulching plug, or side discharge chute as needed.
5. Prime engine: Press primer bulb 3 times for cold starts.
6. Start engine: Insert safety key, set throttle to fast, pull recoil starter firmly.

CAUTION! Always operate outdoors with good ventilation. Keep children and pets away.

Specifications

• Model: Craftsman 917
• Cutting Width: 21 inches
• Engine: Briggs & Stratton 140cc OHV, 4-cycle
• Cutting Heights: 6 positions, 1.5" to 4"
• Drive: Self-propelled (rear-wheel) or push model variants
• Start Type: Recoil with primer
• Deck Material: Steel
• Bag Capacity: 2.5 bushels (rear bagger)
• Fuel Type: Unleaded gasoline (87 octane or higher)
• Oil Type: SAE 30 detergent (summer), 5W-30 (cold weather)

Controls and Settings

Main controls located on handle. Handle: Throttle control, drive control lever (self-propelled models), height adjustment lever, recoil starter grip.

Engine Controls: Primer bulb, choke (if equipped), throttle lever (turtle/rabbit), safety key.

Cutting Height: Single lever adjusts all wheels simultaneously. Drive Control: Squeeze lever to engage self-propelled drive; release to stop. Throttle: Set to FAST for mowing, SLOW for idling. Safety Key: Must be inserted for engine to run; removes to stop engine.

Connecting Attachments

Attach bagger, mulching plug, or side discharge chute as needed.

1. Ensure engine is off and spark plug wire disconnected.
2. For bagging: Hook bagger frame onto rear deck mounts, then attach bag.
3. For mulching: Insert mulching plug into side discharge opening, secure with wing nut.
4. For side discharge: Attach discharge chute, ensure it is locked in place.

Tip: Always use the appropriate attachment for your mowing task to ensure optimal performance and safety.

Operating the Mower

Follow safe operating procedures for mowing.

1. Pre-start check: Clear mowing area of debris, check oil and fuel.
2. Start engine: Insert safety key, set throttle to FAST, prime, pull starter.
3. Engage drive: For self-propelled models, squeeze drive lever to handle.
4. Mow: Walk at a steady pace, overlapping passes slightly.
5. Empty bag: Stop engine, wait for blade to stop, then empty bag when full.
6. Shut down: Release drive lever, move throttle to SLOW, let idle 30 seconds, remove safety key.
7. Clean: After use, clean underside of deck to prevent grass buildup.

WARNING! Never operate without all guards in place. Do not mow on steep slopes.

Safety Features

Operator Presence Control: Engine stops if safety key is removed or drive lever released. Blade Brake Clutch: Stops blade within 3 seconds when control is released. Safety Labels: Read and follow all warnings on mower.

Care & Maintenance

Regular maintenance ensures long life and safe operation.

• After each use: Clean deck, check for damage.
• Monthly: Check blade sharpness and balance; sharpen or replace as needed.
• Seasonally: Change engine oil, replace air filter, check spark plug.
• Storage: Run engine dry of fuel or add fuel stabilizer, store in dry place.

CAUTION! Always disconnect spark plug before performing any maintenance. Use only genuine Craftsman parts.

Regulatory Information

EPA Certified Engine: Meets emission standards for small off-road engines. Safety Compliance: Conforms to ANSI B71.1 standards. Copyright © 2025 Craftsman; trademarks of Stanley Black & Decker, Inc. For support, visit www.craftsman.com or contact 1-888-331-4569.

Troubleshooting

Reset: Ensure all safety controls are engaged properly.

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