John Deere CS71 - UT10919, CS71 - UT10920, CS71 - UT10921, CS81 - UT10923, CS81 - UT10924, CS81 - UT10925 Chainsaw User Manual


 
12 English
Fueling
This product is powered by a 2-cycle engine and requires pre-
mixing gasoline and 2-cycle oil. Pre-mix unleaded gasoline and
2-cycle engine oil in a clean container approved for gasoline.
RECOMMENDED FUEL: THIS ENGINE IS CERTIFIED TO OP-
ERATE ON UNLEADED GASOLINE INTENDED FOR AUTOMO-
TIVE USE WITH AN OCTANE RATING OF 87 ([R + M] / 2) OR
HIGHER.
Mix JOHN DEERE Premium Exact Mix Oil with gasoline
according to the instructions on the package. If Premium Exact
Mix oil is not available, use a high quality 2-cycle engine oil,
mixed at 2.6 oz. per gallon (US).
DO NOT USE AUTOMOTIVE OIL OR 2-CYCLE OUTBOARD
OIL.
NOTE: Premium Exact Mix fuel mix contains a fuel
stabilizer and will stay fresh up to 30 days. DO NOT mix
quantities larger than usable in a 30 day period. A 2-cycle oil
containing a fuel stabilizer is recommended.
Fuel Mixture
Premium Exact Mix(50:1)
Filling the Tank
OPERATION
Chain Oil System
1. Use JOHN DEERE Bar and Chain Oil. It is designed for
chains and chain oilers and is formulated to perform over a
wide temperature range with no dilution required. If not
available, use any new SAE-30 weight engine oil.
NOTE: Do not use dirty, used or otherwise contaminated
oils. Damage may occur to the oil pump, bar, or chain.
2. Fill the oil tank every time engine is fueled.
3. The automatic oil pump is a positive displacement pump
operated through gears driven off the clutch drum assembly.
The pump will not oil at idle speeds.
4. Chain saw should use approximately one tank of oil per tank
of fuel.
Refer to the Safety-Refueling Section for additional Safety
Precautions.
1. Clean surface around fuel cap to prevent contamination.
2. Loosen fuel cap slowly.
WARNING
Always shut off engine before fueling. Never add fuel to
a machine with a running or hot engine. Move at least 10
feet (3m) from refueling site before starting engine. DO
NOT SMOKE!
WARNING
Check for fuel leaks, if any are found, correct before use.
3. Carefully pour fuel mixture into the tank. Avoid spillage.
4. Prior to replacing the fuel cap, clean and inspect the gasket.
5. Immediately replace fuel cap and hand tighten. Wipe up any
fuel spillage.
6. It is normal for smoke to be emitted from a new engine during
and after first use.
Bar and Chain Oil
Fuel Mixture
2.6 oz.
2.6 oz.
}
1 pt.
OR
Gasoline Oil
1 gallon (US) .............................................. 2.6 oz.
1 Liter ........................................................ 20cc (20 ml)