Echo CS-310ES Service Data Manual


Echo CS-310ES Service Data Workshop Manual for the Echo 310ES chainsaws. View free page images online or download PDF with images, diagrams and information. Print or save to any device.
Download PDF Manual

Echo CS-310ES Service Data Manual Repair

Echo CS-310ES Service Data Workshop Manual for the Repair and service of Echo 310ES chainsaws. The PDF manual has diagrams and acurate information to help to troubleshoot, repair and fix the Echo CS-310ES chainsaw. View free page images online or download a PDF manual that you can easily save, print or view on most devices.

Echo CS-310ES Service Manual-Data Manual


Specification, Technical data, Torque limits, Special repairing materials, Service limits., Special tools.


General adjusting rules, Presetting idle adjust screw, L mixture needle and H mixture needle, Adjusting carburetor.

See the additional full service workshop manual, carburetor manual, parts list, operator manual and technical supplements PDF download available on this website for more information on how to service and repair the chainsaw.

Echo CS-310ES Chainsaw Specifications

Echo CS-310ES chainsaw carbureter type: WALBRO WT-946, OEM part number A021001700.


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

See manuals for more chainsaw specs..

Echo CS-310ES Service Data Workshop Manual PDF

* Online preview