Fuel And Lubrication; Mixing Fuel; Starting A Cold Engine - Dunsch DU25428B Manual De Usuario

 Install the flange washer and cup washer on the spindle shaft.
 Install the spool and tighten it.
STOP ENGINE IMMEDIATELY!
Excessive vibration of blade means that it is not properly installed-stop engine immediately and check
blade. Blade not properly installed will cause injury.

9. FUEL AND LUBRICATION

9.1 Fuel
Use regular grade unleaded petrol mixed with 40:1 custom 2-cycle engine oil for best results. Use mixing ratios
in Section FUEL MIXING TABLE below.
WARNING: Never use normal petrol in your unit. This will cause permanent engine damage and
void the manufacturer's warranty for the product. Never use a fuel mixture that has been stored for
over 90 days.
WARNING: 2-cycle lubricant must be a premium grade oil for 2-cycle air cooled engines mixed at a
40:1 ratio. Do not use any 2-cycle oil product with a recommended mixing ratio of 100:1. If
insufficient lubrication is the cause of engine damage, it voids the manufacturer's engine warranty.

9.2 Mixing fuel

Add oil to an approved fuel container followed by the petrol to allow incoming petrol to mix with oil. Shake
container to ensure thorough mix.
WARNING: Lack of lubrication voids engine warranty. Petrol and oil must be mixed at 40:1.
Some conventional kinds of petrol are now blended with oxygenates such as alcohol or an ether compound to
meet clean air standards. The engine is designed to operate satisfactorily with any petrol intended for
automotive use including oxygenated petrol.
10. OPERATING INSTRUCTIONS
10.1 Harness
Warning: always wear shoulder harness when operating
Turn engine off before disconnecting shoulder harness.
Adjust length of shoulder strap so string head is parallel to the ground as it hangs from the strap. A few practice
swings without starting engine should be made to determine correct balance.
NOTE: Detach the shoulder harness from the unit before starting engine.

10.2 Starting a cold engine

 Move the stop switch(C) to "I" position.
 Give a gentle push on the primer pump (F) repeatedly (7-10times) until fuel comes into the primer pump.
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