Adjusting The Control Handle; Adjusting The Blower Tube; Mixing The Fuel And Refuelling The Blower; Mixing Fuel - Stihl BR 500 Instruction Manual

8 Mixing the fuel and refuelling the blower

7.3

Adjusting the Control Handle

► Loosen the screw (1).
► Slide the control handle (2) to the required position.
► Tighten screw (1) so that the control handle (2) can no
longer be turned around the blower tube.
7.4

Adjusting the Blower Tube

The blower can be adjusted in 3 positions depending on the
height of the user and the work situation. The positions are
marked on the blower tube.
► Shut off the engine.
► Adjust blower tube to the desired position.
0458-452-0121-H
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8 Mixing the fuel and refuelling the
blower
8.1

Mixing fuel

The fuel required for this blower is a mixture of two-stroke
engine oil and gasoline in a mixing ratio of 1:50.
STIHL recommends you use STIHL MotoMix.
If you mix the fuel yourself, use only STIHL two-stroke
engine oil or another high-performance engine oil in
accordance with JASO FB, JASO FC, JASO FD, ISO-L-
EGB, ISO-L-EGC or ISO-L-EGD.
STIHL specifies STIHL HP Ultra two-stroke engine oil or an
equivalent high-performance engine oil in order to maintain
emission limits over the machine's service life.
► Make sure that the octane number of the gasoline is at
least 90 RON and the ethanol content is not more than
10%.
► Make sure the two-stroke engine oil you are using meets
the requirements.
► Depending on the desired amount of fuel, determine the
correct amounts of two-stroke engine oil and gasoline in a
mixing ratio of 1:50. Examples for fuel mixes:
– 20 ml Two-stroke engine oil, 1 l gasoline
– 60 ml Two-stroke engine oil, 3 l gasoline
– 100 ml Two-stroke engine oil, 5 l gasoline
► Pour two-stroke engine oil into a clean approved fuel
canister first and then add gasoline.
► Stir the fuel before topping up.
8.2

Refuelling the blower

► Shut off the engine.
► Place the blower on a level surface so that the fuel tank
cap faces up.
► Use a damp cloth to clean the fuel tank cap and the area
around it.
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