Owner's Manual

BR 500, BR 550, BR 600
English
31
Definitions
1. Straight Nozzle
Aims and widens the airstream.
2. Blower Tube (BR 550 / 600)
Directs the airstream.
3. Blower Tube (BR 500)
Directs the airstream.
4. Blower Tube (BR 500 / 550 / 600)
Directs the airstream.
5. Control Handle
Handle on the flexible hose to hold
and direct the tube in the required
direction. Designed to help protect
against static electricity.
6. Throttle Trigger
Controls the speed of the engine.
7. Setting Lever
For run and stop. Sets the throttle to
various positions or stops the
engine.
8. Pleated Hose
For blowing in the desired direction.
9. Harness
For carrying the unit.
10. Backplate
Helps protect the back of the user.
11. Intake Screen
Helps prevent leaves entering
intake.
12. Air Filter Cover
Covers and protects the air filter
element.
13. Fuel Filler Cap
For closing the fuel tank.
14. Spark Plug Boot
Connects the spark plug with the
ignition lead.
15. Muffler (with Spark Arresting
Screen)
Muffler reduces exhaust noises and
diverts exhaust gases away from
operator.
Spark arresting screen is designed
to reduce the risk of fire.
16. Carburetor Adjusting Screws
For tuning the carburetor.
17. Choke Knob
Eases engine starting by enriching
mixture.
18. Fuel Pump
Provides additional fuel feed for a
cold start.
19. Starter Grip
The grip of the pull starter, for
starting the engine.
20. Fuel Tank
For fuel and oil mixture.
EPA / CEPA
The Emission Compliance Period
referred to on the Emissions
Compliance Label indicates the number
of operating hours for which the engine
has been shown to meet Federal
emission requirements.
Category
CARB
The Emission Compliance Period used
on the CARB-Air Index Label indicates
the terms:
Engine
STIHL 4-MIX Engine
Specifications
A = 300 hours
B = 125 hours
C = 50 hours
Extended = 300 hours
Intermediate = 125 hours
Moderate = 50 hours
Displacement: 3.95 cu. in.
(64.8 cm
3
)
Bore: 1.97 in. (50 mm)
Stroke: 1.3 in. (33 mm)
Idle speed: 2,500 rpm