STIHL P 840 Motor Pump Owners Manual

STIHL PB4D Instruction Manual Owner’s Manual Assembling Safety Precautions Operating Instructions Maintenance Contents Parts of the motor pump Important safety precautions Use of the motor-driven pump Making up the unit Pump operation Mixing fuel Filling with fuel Starting the motor-driven pump Air filter Setting the carburetor Spark arresting screen in the muffler Checking the spark plug Replacing the starter rope and rewind spring Maintenance and care Specifications This Manual contains operating and safety instructions for all STIHL motor pump series.

Pay special attention to the safety precautions outlined on pages 4 to 9. Allow only persons who understand this Manual to operate your motor pump. To receive maximum performance and satisfaction from your STIHL motor pump, it is important that you read and understand the maintenance and safety precautions before using your motor pump. Contact your STIHL dealer or the STIHL distributor for your area if you do not understand any of the instructions in this Manual. 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 motor pump differs from those described in this Manual, please contact your STIHL dealer for information and assistance. Warning! Because a motor pump is a high-speed tool, some special safety precautions must be observed as with any other power motor pump to reduce the risk of personal injury. Careless or improper use may cause serious or even fatal injury. 1993 Andreas Stihl, Waiblingen 0458911 0121. M1 H3. By Editor. Gratic. Metr6pole S.A. . .: Parts of the Motor Pump Spark plug terminal Choke pin Stop switch Starting throttle pin Filter cover Pump primer cap Pump housing Outlet flange Suction flange Fuel filler cap Muffler Starter grip Handle Spark arrestor screen rr Definitions 1. Spark plug terminal Connects the spark plug with the ignition wire. 9. Suction flange Connects the intlet hose with the motor pump housing. 2. Choke pin Eases engine starting by enriching mixture. 10. Fuel filler cap For closing the fuel tank. 11. Muffler 3. Stop switch Stops engine. Attenuates exaust noises and diverts exhaust gases away from operator and engine. 4. Starting throttle pin Controls the speed of the engine. 12. Starter grip The grip of the pull-starter, which is a device to start the engine. 5. Filter cover Covers the air filter element. 13. Handle 6. Pump primer cap Covers opening for feeding the pump housing and suction hose with water before starting the pump. The handle of the motor pump to carry the motor pump when transporting it. 14. Spark arrestor screen 7. Pump housing Housing, which contains the pump rotor. Covers muffler exaust opening to reduce risk of fire. 8. Outlet flange Connects the outlet hose with the motor pump housing. 3 _ ‘ :.’ -, Safety Precautions Warning! Because your motor pump is a high-speed power tool, special safety precautions must be observed to reduce the risk of fire and personal injury. It is important that you read, fUlly understand and observe the following safety precautions and warnings. Save this owner’s manual and read the safety instructions periodically. Be thoroughly familiar with the controls and the proper use of the equipment. Know how to stop the unit and disengage the controls quickly. Careless or improper use of any motor pump may cause serious or fatal injury. Have your STIHL dealer show you how to operate your motor pump. Observe all applicable local safety regulations, standards and ordinances. Warning! Minors should never be allowed to use a motor pump. Bystanders, especially children, and animals should not be allowed in the area where a machine is in use. Never let the unit run unattended. Do not lend or rent your unit without the owner’s manual. Be sure that anyone using your unit understands the information contained in this manual. Most of these safety precautions and warnings apply to the use of all STIHL motor pumps. Different models may have different parts and controls. See the appropriate section of your owner’s manual for a description of the controls and function of the parts of your machine. THE OPERATOR Physical Condition You must be in good physical condition and mental health and not under the influence of any substance (drugs, alcohol, etc.) which might impair vision, dexterity or judgment. Do not operate a motor pump when you are fatigued. Working with and transporting any motor pump can be strenuous. If you have any condition that might be aggravated by strenuous work, check with your doctor before operating the machine. Safe use of a motor pump involves