CS-501P

General Information:

• Production Dates: 
• MSRP: (Suggested retail price. Subject to change without notice.)
  • CS-501P-16”: $669.99
  • CS-501P-18": $669.99
  • CS-501P-20": $679.99
• Model Number Breakdown: "CS" Chainsaw, "501" The first two numbers are the engine cc size generally within, plus or minus 1 cc to 2 cc. The last number is the sub-version within that model series 
• Replaced Model: CS-500P
• Replaced By Model: N/A
• Uses & Applications: Designed for felling trees and cutting wood
• Box Dimensions: 
  • CS-501P-16”: Length: 20 in. Width: 11 in. Height: 13 in. Weight: 14 lb. 
  • CS-501P-18": Length: 21 in. Width: 11 in. Height: 13 in. Weight: 16 lb. 
  • CS-501P-20": Length: 22 in. Width: 11 in. Height: 13 in. Weight: 20 lb. 
• Operator's/Safety Manuals, Parts Catalogs: In Business Portal, go to the "Search" tab and enter the model number in the "Item #" field. From there, select the correct document. 
• Accessories: In the Knowledge Base, search the accessory name (for example, "kick guard") and view the related article to confirm compatibility with this model.

Features:

• ECHO now has the lightest gas-powered chainsaw in North America; 5.2 lbs. (without bar and chain) that helps with operator fatigue and greater operator productivity throughout the entire day
• Compact top-handle chainsaw which is very maneuverable in tight spaces and easy to pull through branches when climbing a tree
• 10% more power than the CS-271T and 6% more power than the CS-303T
• Captive bar nuts
• Debris prevention with fine grid starter cover to prevent debris ingestion
• Adjustable oiler that is top-mounted to match oil flow to conditions
• Spit-back plate to keep filter clean from fuel
• Rear mounted two-piece air filter, position away from debris, easy to clean and large surface area 

Guide Bars & Chains:

• 16” (Standard):
  • Guide Bar - Part #16F0LD3366C
  • Chain - Part #20LPX66CQ - 66 drive links, .050 in. gauge, 3/8 in. pitch, 3/16 in. file size 

• 18" (Standard):
  • Guide Bar - Part #18F0LD3372C
  • Chain - Part #20LPX72CQ - 72 drive links, .050 in. gauge, 3/8 in. pitch, 3/16 in. file size 
• 20" (Standard):
  • Guide Bar - Part #20F0LD3378C
  • Chain - Part #20LPX78CQ - 78 drive links, .050 in. gauge, 3/8 in. pitch, 3/16 in. file size

Technical Specifications: For more details on specifications, torque limits, service limits, and special tools, refer to the attached "Service Data."

• Length: 15.6 in.
• Width: 9.3 in. 
• Height: 11.4 in.
• Weight: 10.4 lb.
• Engine Type: Air cooled, two-stroke, single cylinder gasoline engine
• Engine Displacement: 50.2 cc
• Bore: 1.732 in. 
• Stroke: 1.299 in.
• Compression Ratio: 7.2
  
• Ignition Type: CDI (capacitor discharge ignition)
• Spark Plug: NGK BPMR-8Y
  
• Starter: Automatic rewind
• Fuel Tank Capacity: 16.9 fl. oz. 
• Oil Tank Capacity: 9.5 fl. oz. 
• Oiling System: Automatic adjustable 
• Vibration Reduction: Yes 
• Sprocket Type: Floating rim, 7-tooth, 3/8 in. pitch 
• Exhaust: Spark arrestor muffler
• Clutch: Centrifugal type
• Idle Speed: 2,300-3,100 RPM
• Wide Open Throttle Speed: 13,000-14,000 RPM
• Compression Pressure: 138 PSI 
• Primary Coil Resistance: N/A (This model does not have a primary coil resistance because it uses a special spark advance system. Therefore, no primary resistance readings are available for this unit.) 
• Secondary Coil Resistance: 1.5-2.2 ohms