Makita DCS9010 Instruction Manual

Also see for DCS 9010: Owner's and safety manual

Makita DCS9010 Instruction Manual Manual pdf 15 page image

15Adjusting the carburetor (only for EU-countries)SSACAUTION:Do not adjust the carburetor until the machine has beencompletely assembled and checked! Do not adjust thecarburetor without a tachometer!Carburetor adjustment is necessary for optimum engineperformance, for safer and more economical operation.Adjust the carburetor only with the engine warm, a cleanair fi lter, and properly installed cutting tool.Carburetor adjustment may be done only by a MAKITAservice centre. Improper adjustment can cause damageto the engine.In order to comply with new emissions legislation, limits havebeen placed on the carburetor adjusting screws (H) and (L).This limitation (to about 180 degrees) prevents an exces-sively rich mixture. This in turn ensures compliance withemissions rules as well as optimum engine performance andeconomical fuel consumption.You will need a tachometer (part No. 950 233 210) for op-timum adjustment. Exceeding the maximum permissiblespeed can lead to overheating and under-lubricating, anddamage to the engine!Factory setting of adjusting screws (H) and (L): Turned outalmost all the way (counterclockwise).Use a screwdriver (blade width 4 mm, part No. 944 340 001)to adjust the screws.For proper adjustment, proceed as follows:Checking adjusting screw (H)Before starting the engine make sure that adjusting screw (H) isturned out counterclockwise until it reaches a noticeable stop.The limitations do not prevent excessively lean running!1. Start engine and let it warm up (3-5 minutes)2. Set idle3. Check acceleration4. Set maximum permissible speed5. Check idle speed2. Set idleSet the idle speed per the technical specifications.Turning the adjusting screw (S) in (clockwise) increases theidle speed. Turning it out (counter-clockwise) lowers the idlespeed. The cutting tool must not rotate!3. Check accelerationWhen the throttle is pressed, the engine should go smoothlyfrom idle to high speed.Turn adjusting screw (L) out (counterclockwise) in smallincrements until acceleration is good.4. Set maximum permissible speedSet the maximum speed by minimal adjustments of theadjusting screw (H) in accordance with the technical speci-fications. Turning the adjusting screw (H) clockwise increasesthe speed. Never exceed the maximum permissiblespeed!For units with electronic engine speed limitation: Notachometer is necessary to determine the maximumpermissible speed, since exceeding this speed willresult in clearly audible ignition misses!5. Check idle speedCheck the idle speed after setting the top speed (the cuttingtool must not rotate!).Repeat the adjustment procedure starting at Step 2, until theengine runs with the correct idle speed, good acceleration,and maximum permissible speed.BHLS