HCS-2810 / 3810 SPECIFICATIONSX7702248300 39© 09/19 ECHO IncorporatedLong Term Storage (Over 30 Days)Do not store your unit for a prolonged period of time (30 days or longer)without performing protective storage maintenance which includes thefollowing:1. Store unit in a dry, dust free place, out of the reach of children.2. Place the stop switch in the “STOP” position.3. Remove accumulation of grease, oil, dirt and debris from exterior ofunit.4. Perform all periodic lubrication and services that are required.5. Apply clean oil to the entire length of the blade. Be certain the bladebolts are lubricated.6. Install blade cover on blades.7. Tighten all the screws and nuts.8. Drain fuel tank completely. Press purge bulb 6-7 times to removeremaining fuel from carburetor then drain the tank again. Close choke,start and run the engine until it stops due to lack of fuel.9. Allow engine to cool. Remove the spark plug lead from the spark plug.Remove the spark plug. Pour 7 cc (0.25 oz.) of fresh, clean, two-strokeengine oil into the cylinder through the spark plug hole.a. Place a clean cloth over the spark plug hole.b. Pull the recoil starter handle 2-3 times to distribute the oil inside theengine.c. Observe the piston location through the spark plug hole. Pull therecoil handle slowly until the piston reaches the top of its travel andleave it there.10. Install the spark plug. Connect the spark plug lead to the spark plug.SPECIFICATIONSMODEL HCS-2810 HCS-3810Length 1,055 mm (41.5in.) 1342 mm (53 in.)Width 258 mm (10.2 in.)Height 195 mm (7.7 in.)Weight (dry) 4.7 kg (10.3 lb.) 4.9 kg (10.8 lb.)Engine Type Air cooled, two-stroke, single cylinder gasoline engineBore 32.2 mm (1.27 in.)Stroke 26.0 mm (1.02 in.)