680ES OPERATOR MANUAL
22
© 2015 ICS®, Blount International Inc. Specifications are subject to
change without notice. REV071315 F/N 577451
FUELING
Fueling
Fuel vapors are highly flammable.
Turn off the saw, assure that the multi-function lever is set in the “STOP” position,
and allow the engine to cool a few minutes before fueling. Do not smoke or refuel
the saw in close proximity to any ignition sources. Move the saw at least 3 m (10 ft)
from the fueling area before restarting it.
This saw is certified to be in conformance with Section 213 of the Clean Air Act
by the US EPA.
Failure to follow instructions on preparing the fuel and oil mixture may result in
emissions violations.
IMPORTANT
DANGER
Following are the basic instructions to assure safe fueling procedures.
FUEL
ICS saws require the use of high quality, 90 Octane (95 RON) or higher fuel
combined with ICS 2-stroke oil (or other high quality 2-stroke oil) specifically
formulated for aircooled power equipment at a mixture of 4% (25:1). Due to the
heavy duty cycle ICS saws are subjected to in concrete cutting applications, oil
mixture and fuel quality are critical to the performance and life of the engine.
ALKYLATE FUELS
Alkylate fuel (i.e. Aspen 4) is an acceptable alternative to conventional fuel when
combined with ICS 2-stroke oil (or other high quality 2-stroke oil) at a mixture of 4%
(25:1).
NOTE: If using Aspen alkylate fuel or similar, carburetor adjustments are not
necessary or recommended.
ETHANOL BLENDED FUEL
While ICS recommends using fuel that does not contain ethanol (alcohol), it is
understood that 10% Ethanol blended fuel (E10) is becoming more widespread.
ICS saws are not designed to operate with fuel containing more than 10% ethanol.
NOTE: The use of Ethanol blended fuel greater than E10 will cause improper
operation and will cause major engine failure. This type of fuel related failure is not
covered under warranty.