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SHINDAIWA OWNER’S/OPERATOR’S MANUAL
C254 BRUSHCUTTER
WARNING!
Minimize the risk of injury to yourself and oth-
ers! Read this manual and familiarize yourself with
the contents. Always wear eye and hearing protection
when operating this unit.
X7502825900
06/10
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Introduction IMPORTANT! The Shindaiwa H4 series of hand-held WARNING! The information contained in these power equipment is designed and built The engine exhaust from instructions describes units available at to deliver superior performance and this product contains chemicals the time of publication. reliability without compromise to quality, known to the State of California comfort, safety or durability. Shindaiwa to cause cancer, birth defects or engines represent the leading edg
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Safety Work Safely WARNING! Trimmers and brushcutters operate at Never make unauthorized very high speeds and can do serious WARNING! attachment installations. damage or injury if they are misused or Never oper- abused. Never allow a person without ate power equipment of training or instruction to operate this any kind if you are tired or if you unit! Stay Alert are under the influence of alcohol, drugs, medication or any other sub- You must be physically and mentally fit stance that
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Safety (continued) The Properly Equipped Operator Wear hearing protection devices and a Always wear eye protection such as broad-brimmed hat or helmet. A helmet goggles or safety glasses to shield is required when using a blade-equipped against thrown objects. brushcutter to clear small trees. Always wear a harness when operating the unit . It adds comfort and helps ensure safety by limiting Prolonged exposure to excessive noise movement fore and aft. When the harness is is fatiguing and c
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Product Description Ignition Switch Throttle Lock Button Throttle Interlock Using the illustration as a guide, familiarize yourself with your machine and its various com- Throttle ponents. Understanding your Trigger Hanger machine helps ensure top perfor- mance, long service life and safer operation. Outer Tube Grip Fuel Tank Handle Gearcase Shoulder Strap Cutting Attachment Shield WARNING! Do not make unauthorized Hip Pad modifications or alterations to any of these units or their
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Emission Control (Exhaust & Evaporative) EPA 2010 and Later and/or C.A.R.B. TIER III The emission control system for the engine is EM/TWC (Engine Modification and 3-way Catalyst) and for the fuel tank the Control System is EVAP (Evaporative Emissions) or N (for nylon tank). Evaporative emission may be applicable to California models only. An Emission Control Label is located on the unit. (This is an EXAMPLE ONLY; information on label varies by en- gine FAMILY). PRODUCT EMISSION DURABILITY (
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Cutting attachment shield Tools Required: Screwdriver A Parts Required: Plastic debris shield, shield plate, (3) 5 x 10 mm screws CAUTION Wear Gloves or personal injury may result: • Cutoff knife is sharp. • Gearcase and surrounding area may be hot. B NOTE: C The plastic shield is for use with the Nylon Line Head only. Install Metal Shield when using plastic or metal blades. 1. Remove plastic threaded shaft sleeve and adapter plate (C) from PTO shaft (A). 2. Place the shield on the bot
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Assembly (continued) Throttle Linkage and Ignition Leads Adjust throttle trigger free play 4-6 mm The throttle trigger free play should (3/16”-1/4”) be approximately 4 - 6 mm (3/16” Throttle Free Play - 1/4”). Make sure that the throttle lever operates smoothly without binding. Throttle trigger free play Cable 1. Loosen the air cleaner cover A C Adjuster B knob(s) and remove the air cleaner 3. Turn the cable adjuster in or out as cover. required to obtain proper free play 4 2. Place t
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C d. Remove three screws holding shield plate (E) and plastic shield (C) to E gear housing. e. Retain line head (B), adapter plate (D), shield plate, and plastic shield for conversion back to nylon line head operation. D 2. Loosely attach bracket (I) to shield (J) and attach shield to bottom of gear housing (F) with hardware provided. F 3. Tighten all shield hardware. I J Install Blade Tools Required: 4 mm hex key wrench (locking tool), 17 mm wrench, Pliers Parts Required: Adap
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Mixing Fuel WARNING! Alternative fuels, such as E15 (15% ethanol), E-85 (85% ethanol) or any fuels not meeting Shindaiwa requirements are NOT approved for use in Shindaiwa gasoline engines. Use of alternative fuels may cause performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including, but not limited to, improper clutch engagement. Alternative fuels may also cause premature deterioration of fuel lines, gaskets, carburetors and other engi
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Mixing Instructions Storage - Fuel storage laws vary by locality. Contact 1. Fill an approved fuel container with half of the re- your local government for the laws affecting your area. quired amount of gasoline. As a precaution, store fuel in an approved, airtight con- 2. Add the proper amount of engine oil to gasoline. tainer. Store in a well-ventilated, unoccupied building, 3. Close container and shake to mix oil with gasoline. away from sparks and flames. 4. Add remaining gasoline, clo
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Starting the Engine IMPORTANT! Engine ignition is controlled by a two position switch mounted on the throttle housing labeled, “I” for ON or START and “O” for OFF or STOP. WARNING! The attachment will operate immediately when the engine starts, and could result in possible serious injury. Keep movable parts of the attachment away from objects that could become entangled or thrown, and surfaces that Starting the Engine could cause loss of control. IMPORTANT! Engine ignition is controlled by
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Starting the Engine (continued) Starting the Engine (continued) ■ Squeezing the throttle lever makes the Starting A Flooded Engine When the Engine Starts... cutting attachment move faster; releas- 1. Disconnect the spark plug lead and use 3. Open the choke and fully depress the ing the throttle permits the attachment 5. Repeat the starting procedure for a ■ After the engine is warm, pick up ■ After the engine starts, allow the the spark plug wrench to remove the throttle lever with your le
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Cutting grass with a trimmer head Your Shindaiwa unit may be equipped Engine Operating Speeds with one of several Shindaiwa trimmer Operate at full throttle while cutting Cut from left to right head models, each with features for grass. specific applications and/or operational Cut requirements. CAUTION! NOTE: Return Operation at low rpm can lead to For proper operation, always refer to premature clutch failure. the instructions accompanying the trim- mer head being used. Trimming and Mow
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T U C T O N O D Using a blade WARNING! ■ Never use a blade for purposes ■ A blade-equipped unit must be ■ Before working with a blade- other than those for which it was equipped with a bicycle-type equipped unit, always inspect and designed. handlebar or barrier bar as well clean the area of objects that could as a harness or shoulder strap. interfere with or damage the blade. ■ Whenever you strike a hard object with a blade, always stop the ■ Never use a blade near sidewalks, ■
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Maintenance WARNING! WARNING! General maintenancel Before performing any Non-standard accessories, IMPORTANT! maintenance, repair, or cleaning cutting attachment, or replacement MAINTENANCE, REPLACEMENT work on the unit, make sure the parts may not operate properly with OR REPAIR OF EMISSION CON- engine and cutting attachment are your unit and may cause damage TROL DEVICES AND SYSTEMS completely stopped. Disconnect and lead to personal injury. MAY BE PERFORMED BY ANY the spark plug wire b
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Maintenance (continued) 10-Hour maintenance (more frequently in dusty Loosen fasteners conditions) 1. Remove the air filter cover by loos- ening the cover screw(s) and lifting. Prefilter 2. Remove and inspect the pre-filter. If the pre-filter is torn or otherwise damaged, replace it with a new one. Filter element 3. Clean the pre-filter with soap and water. Let dry before reinstalling. 4. Inspect the air filter element. If the element is damaged or distorted, replace it with a new one. C
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Maintenance (continued) 50-hour maintenance Remove and replace the fuel filter element. ■ Use a hooked wire to extract the fuel filter from inside the fuel tank. Inspect the fuel filter element. If it shows signs of contamination, replace with a genu- ine Shindaiwa replacement fuel filter element. CAUTION! Make sure you do not pierce the fuel line with the end of the hooked wire. Hooked wire The line is delicate and can be dam- aged easily. ■ Before reinstalling the new filter ele- ment,
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Maintenance (continued) Muffler and spark arrester maintenance If the engine becomes sluggish and low on power, check and clean the spark arrester screen. Engine Cover WARNING! Engine Cover Never operate the unit with a Screws damaged or missing muffler or spark arrester! Operating with a missing or damaged spark arrester is a fire hazard and could also damage your hearing. 1. With a 3 mm hex wrench remove the engine cover screws and the engine Muffler cover. Muffler Gasket 2. With a
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Maintenance (continued) Adjusting Engine Idle The engine must return to idle speed Idle Speed Adjustment Idle whenever the throttle lever is released. Ajust- 1. Place the unit on the ground, then Idle speed is adjustable, and must ment start the engine, and then allow it to Screw be set low enough to permit the idle 2-3 minutes until warm. engine clutch to disengage the cutting attachment. 2. If the attachment rotates when the engine is at idle, reduce the idle WARNING! speed by turning
