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Parts and Controls

2

Definitions

3

Safety Precautions

4

Assembling the Blower

10

Fuel Mix

11

Fueling

11

Starting

12

Using the blower

14

Cleaning the Air Filter

16

Adjusting the Carburetor

16

Motormanagement

16

Spark Arresting Screen in Muffler 

17

Checking the Spark Plug

18

Replacing the Starter Rope
and Rewind Spring

19

Operating Instructions

21

Maintenance Chart

22

Specifications

23

Special Accessories

23

Storing the Machine

23

STIHL Incorporated Federal and 
California Emission Control 
Warranty Statement

24

This Manual contains operating and
safety instructions for all STIHL BG 75
blowers.
Pay special attention to the safety
precautions outlined on pages 4 to 9.
Allow only persons who understand this
Manual to operate your blower.
To receive maximum performance and
satisfaction from your STIHL blower, it is
important that you read and understand
the maintenance and safety precautions
before using your blower.
Contact your STIHL dealer or the STIHL
distributor for your area if you do not 
understand any of the instructions in this
Manual.

:DUQLQJ

Because a blower is a high-speed tool,
some special safety precautions must
be observed as with any other power
tool to reduce the risk of personal injury.
Careless or improper use may cause 
serious or even fatal injury. 
STIHL’s philosophy is to continually 
improve all of its products. As a result,
engineering changes and improvements
are made from time-to-time. 
If the operating characteristics or the 
appearance of your blower differ from
those described in this Manual, 
please contact your STIHL dealer for 
information and assistance.

&RQWHQWV

0458 326 3021. M10. E9. T. Printed in Germany

 1999 Andreas Stihl AG & Co., Waiblingen

Printed on chlorine-free paper

Printing inks contain vegetable oils,
paper is recyclable

%*

Summary of Contents for BG 75

Page 1: ...STIHL BG 75 III Instruction Manual Owner s Manual Assembling Safety Precautions Operating Instructions Maintenance...

Page 2: ...action from your STIHL blower it is important that you read and understand the maintenance and safety precautions before using your blower Contact your STIHL dealer or the STIHL distributor for your a...

Page 3: ...een 5 Clamp 6 Blower tube 7 Nozzle 8 Spark plug boot 9 Fuel pump 10 Choke lever 11 Filter housing 12 Carburetor adjusting screws 13 Starter grip 14 Fuel filler cap 15 Fuel tank 16 Muffler 3DUWV DQG RQ...

Page 4: ...6SDUN 3OXJ RRW Connects the spark plug to the ignition wire XHO 3XPS Provides additional fuel feed for a cold start KRNH HYHU Eases engine starting by enriching mixture LOWHU RXVLQJ Covers the air fi...

Page 5: ...fatigued Be alert if you get tired while operating your machine take a break Tiredness may result in loss of control Working with any blower can be strenuous If you have any condition that might be ag...

Page 6: ...5 7UDQVSRUW Always turn off the engine before putting down blower When transporting your unit in a vehicle properly secure it to prevent turnover fuel spillage and damage to the machine XHOLQJ This S...

Page 7: ...utdoors in a ventilated area Keep the space behind and beside the engine clear at all times to allow for the escape of hot and toxic exhaust fumes When working with a handheld blower always carry it w...

Page 8: ...tos containing products have been strictly regulated by OSHA and the Environmental Protection Agency Do not blow or disturb asbestos or asbestos containing products such as asbestos insulation If you...

Page 9: ...ly identical STIHL replacement parts for maintenance and repair Use of parts manufactured by others may cause serious or fatal injury Follow the maintenance and repair instructions in the appropriate...

Page 10: ...J In order to reduce the risk of fire do not modify or remove any part of the muffler or spark arrestor Keep spark plug and wire connection tight and clean The spark plug electrode gap should be check...

Page 11: ...to remove the blower tube and fit the elbow with catcher bag in its place Release the clamp Pull the blower tube off the fan hou sing stub 9DFXXP DWWDFKPHQW Remove the screws from the starter cover M...

Page 12: ...ecommend STIHL 50 1 two stroke engine oil since it is specially formulated for use in STIHL engines Do not use BIA or TCW two stroke water cooled mix oils Take care when handling gasoline Avoid direct...

Page 13: ...ottle trigger Release the slide control VWDUWLQJ WKURWWOH SRVLWLRQ Set the choke lever for cold start to J for warm start to H even if engine has been running but is still cold Press the fuel pump bul...

Page 14: ...ns to idling speed To shut down the engine Move the slide control to W YHU ORZ RXWVLGH WHPSHUDWXUHV OORZ HQJLQH WR ZDUP XS As soon as engine runs Blip the throttle trigger slide control moves to the R...

Page 15: ...i cally and effectively since the outlet is near ground level The blower s wide nozzle is particularly effective for clearing large areas covered with sawdust fallen leaves or cut grass etc 7KH PDFKLQ...

Page 16: ...open windows or freshly washed cars After using blowers clean up Do not blow debris onto neighbouring properties Recommended working techniques to minimize noise Operate power equipment only at reaso...

Page 17: ...filter housing Fit the felt cover so that it snaps into position The carburetor comes with a standard setting This is the optimum setting to ensure your machine will operate reliably with the lowest p...

Page 18: ...p the engine Carefully screw the low speed screw down onto its seat Then open it one turn counterclockwise standard setting GMXVWLQJ LGOH VSHHG QJLQH VWRSV ZKLOH LGOLQJ Check standard setting L screw...

Page 19: ...plugs of the approved range Rectify problems which have caused fouling of spark plug Incorrect carburetor setting too much oil in fuel mix dirty air filter unfavorable running conditions e g operating...

Page 20: ...dle out serval inches Hold pulley to prevent rebound Pull rope Slowly release spring tension by allowing pulley to unwind until all tension is gone Use a screwdriver to ease the cap out of the starter...

Page 21: ...securely 7HQVLRQLQJ UHZLQG VSULQJ Make a loop in the starter rope and use it to turn the rope rotor six full revolutions counter clockwise Hold the rotor steady straighten the twisted rope release the...

Page 22: ...s firmly 355BA022 KN a 2mm 0 08in XULQJ EUHDN LQ SHULRG A factory new machine should not be run at high revs full throttle off load for the first three tank fillings This avoids unnecessary high loads...

Page 23: ...ner x 11 Fuel tank Clean x 11 Carburetor Check idle adjustment x x 15 16 Idle setting x 15 16 Spark plug Readjust electrode gap x 17 Cylinder fins Clean x Spark arresting screen in muffler Inspect x 1...

Page 24: ...O 6 VWHP Carburetor All position diaphragm carburetor with integral fuel pump Air filter Foam and felt elements Fuel tank capacity 0 9 US pt 0 5 L Fuel mixture See chapter Fuel Mix Weight complete uni...

Page 25: ...defective the part will be repaired or replaced by STIHL Incorporated free of charge 2ZQHU V DUUDQW 5HVSRQVLELOLWLHV As the small off road equipment engine owner you are responsible for the per forma...

Page 26: ...urer approved or equivalent replacement part may be used for any warranty mainten ance or repairs on emission related parts and must be provided without charge to the owner STIHL Incorporated is liabl...

Page 27: ...WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm englisch english U S A lCARB EPA...

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