Dolmar PB-250.4 - Manual

5 Method of operation • Use the blower only in good light and visibility. During cold seasons beware of slippery or wet areas, ice and snow (risk of slipping).Always ensure a safe footing. • Never work on unstable surfaces or sleep terrain. • To reduce the risk of personal injury, do not direct air ...

SPECIFICATION Notes: 1. Use the oil and spark plug specified by DOLMAR . 2. This specification is subject to change without prior notice. Model PB- 250 .4 Mass (without blower pipe)   (kg) 4.5 (9.9 lbs) Dimension (without blower pipe L x W x H)   (mm) 350 × 231 × 368 (13.8 × 9.1 × 14.5 in) Max. engi...

ASSEMBLY INSTRUCTIONS CAUTION : Before performing any w ork on the blow er, alw ays sw itch off the motor and pull the sparkplug connectors off the spark plug.Alw ays w ear protective gloves! CAUTION : Start the blow er only after having assembled it completely. 1. ASSEMBLY OF BLOWER PIPES 1 ) Align...

BEFORE START OF OPERATION 1. Inspection and Refill of Engine Oil (1) Perform the following procedure, with the engine cooled down. • Inspection ： Please inspect whether it makes the machine horizontal, removes the oil cap, there is a oil to inside the range of the upper limit lower limit mark of gau...

OPERATION 1. Starting 1) When the engine is cold, or when the fuel it refueled (1) Set this machine on a flat space. (2) Set the stop switch to “ I “ position. (3) Continue to push the primer pump until fuel enters into the primer pump. • In general, fuel enters into the carburetor by 7 to 10 pushes...

2) When the engine is warm (1) Place the engine on a flat ground. (2) Press the primary pump several times. (3) Confirm that the choke lever is open. (4) Hold the main handle with a left hand to prevent the engine from moving, settle down to take the stable position. (5) Pull out slowly the starter ...

OPERATION METHOD 1. Blower operation • Hold the machine firmly during operation. • Direct the nozzle end toward the object to be dusted and pull the trigger lever. • The trigger lever can be fixed in an arbitrary position with the cruise control lever. • Maintain the trigger lever at a position wher...

INSPECTION AND MAINTENANCE 1. Replacement of engine oil Deteriorated engine oil will shorten the life of the sliding and rotating parts to a great extent. Be sure to check the period and quantity of replacement. Interval of replacement: Initially, every 20 operating hours, and subsequently every 50 ...

2. Cleaning of air cleaner WARNING ： INFLAMMABLES STRICTLY PROHIBITED Interval of Cleaning and Inspection: Daily (every 10 operating hours) (1) Remove the air cleaner cover-fixing bolts. (2) Pull the cover lower side and detach the air cleaner cover. (3) Turn the choke lever to the full close side, ...

4. Cleaning the fuel filter • Clogged fuel filter may cause difficulty of startup or failure of engine speed increase. • Check the fuel filter regularly as follows: (1) Remove the fuel tank cap, drain the fuel to empty the tank. Check the tank inside for any foreign materials. If any, wipe clean suc...

Fault location Fault System Observation Cause Engine not starting or with difficulty Ignition system Ignition spark O.K. Fault in fuel supply or compression system, mechanical defect No ignition spark STOP-switch operated, wiring fault or short circuit, spark plug or connector defective, ignition mo...

TROUBLESHOOTING Before making a request for repairs, check a trouble for yourself. If any abnormality is found, control your machine according to the description of this manual. Never tamper or dismount any part contrary to the description. For repairs, contact Authorized Service Agent or local deal...

56 EMISSION COMPLIANCE PERIOD For handheld engines : The Emissions 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 C=50 hours, B=125 hours, and A=300 hours. Air...

CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS The California Air Resources Board and Makita U.S.A., Inc. are pleased to explain the emission control system warranty on your 2000 and later Small Off-Road engine (herein “engine”). In California, the engine must be...

LIMITED WARRANTY on Emission Control Systems - California Only - Makita U.S.A., Inc., a distributor of Small Off-Road Engine in the U.S. warrant to the owner of the 2000 and later engine that the engine (1) has been designed, built and equipped so as to conform at the time of manufacture with the ap...

F. WHERE TO GET WARRANTY SERVICE It is recommended that warranty service be performed by the authorized dealer, who sold you the engine, although warranty service will be performed by any authorized dealers, distributors and warranty stations anywhere in the United States. When warranty repair is ne...

It is recommended that only engine replacement parts which have been authorized and approved by Makita U.S.A., Inc. should be used in the performance of any warranty maintenance or repairs of emission-related parts. These replacement parts will be provided at no charge if the part is still under war...