Background
The Craftsman Walk Behind Mower 917.378840 is a walk-behind lawn mower with a 21-inch cutting deck. This gas-powered machine is manufactured by Roper Corp for Sears under the Craftsman brand. The engine is a 6.5 HP Briggs & Stratton, and it uses unleaded regular gasoline, with an octane minimum of 87. The oil type recommended is SAE 30 above 32°F and SAE 5W-30 below 32°F, with an oil capacity of 20 oz. The mower's cutting height can be adjusted from 1-3/4" to 4" in seven increments, and the mower is also mulching-capable, which allows for quick decomposition of lawn clippings to nourish the lawn.
The mower can be operated in either side or rear discharge modes, with a zone start safety system that requires operator presence for blade engagement. Regular maintenance of this mower includes checking the engine oil before each use and changing it after the first 5-8 hours of operation or every 25 hours subsequently. The air filter should be inspected regularly and cleaned or replaced when dirty. The spark plug should be replaced at the start of each mowing season or after 100 hours of use, and the underside of the mower should be cleaned after each use to prevent the buildup of grass clippings and debris.
Technical Specifications
- Model Number: 917.378840
- Product Type: Walk Behind Mower
- Engine: Briggs & Stratton 6.5 HP
- Fuel type: Unleaded regular gasoline, 87 octane minimum
- Oil type: SAE 30 above 32°F, SAE 5W-30 below 32°F
- Oil capacity: 20 oz
- Blade: 21 inch steel
- Cutting height: 1-3/4" to 4" in 7 adjustments
- Discharge modes: Side or rear
- Safety features: Operator presence control bar, blade brake stops blade within 3 seconds after releasing control bar
Warranty
The Craftsman Walk Behind Mower model 917.378840 comes with a 2-year limited warranty. This warranty typically covers any defects in material or workmanship under normal usage conditions. To claim the warranty, you would need to contact the manufacturer, Sears, Roebuck and Co., provide proof of purchase and details about the defect or issue you're experiencing. It's important to note that warranties generally do not cover any damage or defects resulting from misuse, neglect, accident, modification, or improper installation or maintenance.