Echo CS-310ES Parts List Manual


Echo CS-310ES PARTS LIST and repair the 310ES chainsaw. View free page images online or download full PDF. Clear diagrams and accurate repair information, print or save on any suitable device.

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Echo CS-310ES Parts List Repair

Echo CS-310ES Parts List for the Echo chainsaw. Repair and identify all chainsaw parts for the Echo 310ES (CS-310ES) with this manual. The manual contains diagrams and accurate information as used by professional mechanics and repair shops to troubleshoot and identify all componants of the chainsaw.

This is the Echo 310ES parts list manual. A full workshop service manual and carburetor manual is also available from this website. Chainsaw Model number Echo CS-310ES.


It is in a pdf format which contains clear exploded diagrams to help you quickly find all parts of your Echo 310ES chainsaw.

Contents of Echo CS-310ES Parts List Manual:

Introduction, Specifications, Clutch, Engine, Ignition system, Rewind starter, Throttle control, Fuel system, carburetor, Av system, Shaft, Cutting tool drive, Support frame, Special servicing tools and aids

Echo CS-310ES Specifications

Echo CS-310ES carburetor OEM number: A021001700, model: Walbro WT-946

External dimensions

Length × Width × Height (mm) 396 × 232 × 273


Saw without guide bar and chain, empty tanks (kg) 4.0


Fuel tank: (mL) 250
Tank for chain lubrication oil: (mL) 260
Fuel (Mixture ratio): Regular grade petrol. Minimum 89 Octane unleaded petrol is recommended. Do not use fuel containing methyl alcohol or more than 10 % of ethyl alcohol. 50 : 1 (2 %) for ISO-L-EGD Standard (ISO/CD13738), JASO FC, FD grade and ECHO Premium 50 : 1 oil or 25 : 1 (4 %) for JASO FB grade oil.
Oil (Chain oil): Special chain oil or motor oil

Cutting length

All specified usable cutting lengths of guide bar: (mm) 300, 350


Specified pitch: (mm) 9.53 (3/8 inch), 9.53 (3/8 inch)
Specified gauge (thickness of drive links): (mm) 1.27 (0.050 inch), 1.09 (0.043 inch)
Type of guide bar: (cm) 30, 35 (ECHO)
Guide bar gauge: (mm) 1.27 (0.050 inch), 1.09 (0.043 inch)
Type of chain: Carlton N1C-BL, Oregon 91PX, 91VG, 91VXL, 91VX, Oregon 90PX, 90SG
Lubrication: Non-adjustable automatic oil pump


Specified number of teeth: 6


Type: Air cooled 2-stroke single cylinder
Carburettor: Diaphragm type
Magneto: Flywheel magneto, CDI system
Spark plug: NGK BPMR8Y
Starter: Recoil starter “ES” START
Power transmission: Automatic centrifugal clutch
Engine displacement: mL (cm3) 30.5
Maximum shaft brake power (ISO 7293): (kW) 1.17
Recommended maximum speed with cutting attachment: (r/min) 12400
Recommended speed at idling: (r/min) 3200 (2800 – 3300)

Fuel consumption

Fuel consumption at maximum engine power: (L/h) 0.76

Other devices

Front hand guard, Rear hand guard, Throttle trigger lockout, Chain catcher, Chain brake, Anti-vibration device, Spiked bumper.

Featuring a 34.0cm³ professional grade engine, giving exceptional power to weight ratio.

Engine displacement (cm³) 30.5
Output (kw) 1.1
Output (ps) 1.5
Dry Weight (kg) 4.0
Fuel tank capacity (ml) 250.000
Chain Oil Tank Capacity (ml) 0.260
Fuel Consumption At Maximum Engine Power (L/h) 1.08
Priming Pump Yes
Ignition System CDI
Start Assist System ES-start
Chain Brake Inertia
Choke w/ Automatic Fast Idle Release Yes
Chain Tensioner Side
Saw Chain Pitch (inch) 3/8
Guide Bar Gauge (inch) 0.050 (0.043)
Applicable Bar Length (cm/inch) 1 30, 35 / 12, 14
Sound pressure level (dB(A)) 97.9
Sound power level (dB(A)) 107.7
CO² (g/kW・h) 2 1128
Vibration Front handle/Rear handle (m/s²) 4.1 / 6.8

Echo CS-310ES Parts List PDF

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