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SHINDAIWA OWNER’S/OPERATOR’S MANUAL
C344 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.
X7502831700
07/10
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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 Hanger ponents. Understanding your Trigger 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! Hip Pad Do not make unauthorized modifications or alterations to any of these units or their c
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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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Assembly (continued) Throttle Linkage and Ignition Leads Adjust throttle trigger free play The throttle trigger free play should 4-6 mm be approximately 4 - 6 mm (3/16” (3/16”-1/4”) - 1/4”). Make sure that the throttle Throttle Free Play lever operates smoothly without binding. Throttle trigger free play 1. Loosen the air cleaner cover Cable A C knob(s) and remove the air cleaner Adjuster B 3. Turn the cable adjuster in or out as cover. required to obtain proper free play 4 2. Place thr
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Assembly (continued) Install trimmer head Tools required: 4 mm hex key wrench (locking tool) Parts required: adapter plate, trimmer head D NOTE Use the 4 mm hexagonal wrench as a gear housing locking tool. A 1. Assemble adapter plate (C) onto PTO shaft. 2. Align locking hole in adapter plate with notch in edge of gear housing and insert head locking tool (D). 3. Thread line head (E) onto shaft by turning it counter-clockwise until head is tight against adapter plate (C). C 4. Remove locki
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Assembly (continued) 1. If installed remove nylon line head, adapter plate, shield plate, and plastic C shield: a. Align locking hole in adapter plate with notch in edge of gear housing and A insert head locking tool (A). b. Remove line head (B) by turning it clockwise until head is completely off of shaft. c. Remove locking tool. B d. Remove three screws holding shield plate (E) and plastic shield (C) to gear C housing. E e. Retain line head (B), adapter plate (D), shi
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Assembly (continued) Install Blade Tools Required: 4 mm hex key wrench (locking tool), 17 mm wrench, Pliers Parts Required: Adapter plate w/25 mm diameter pilot, lower blade mounting plate, 10 mm hex nut w/L.H. thread, 2 mm x 25 mm cotter pin, blade w/25 mm arbor diameter. 1. Install adapter plate (D) on splined PTO shaft, pilot side down. Blade installa- tion requires Upper Plate (D) with 25 mm pilot. 2. Install Blade (K) on adapter plate pilot. Blades must be installed so that ro
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Examples of 50:1 mixing quantities IMPORTANT! TM Shindaiwa Red Armor engine oil may be mixed at 50:1 ratio for application in all Shindaiwa engines sold in the past, regardless of ratio specified in those manuals. IMPORTANT! Stored fuel ages. Do not mix more fuel than you expect to use in thirty (30) days, ninety (90) days when a fuel stabilizer is added. Use of unmixed, improp- erly mixed, or stale fuel, may cause hard starting, poor performance, or severe engine damage and void the prod
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Filling the fuel tank 1. Place the unit on a flat, level ■ FUEL IS HIGHLY FLAMMABLE. WARNING! surface. Minimize the Risk of Fire ■ ALWAYS store gasoline in a con- 2. Clear any dirt or other debris tainer approved for flammable liquids. from around the fuel filler cap. ■ NEVER smoke or light fires near the ■ ALWAYS inspect the unit for fuel engine. leaks before each use. During each CAUTION! ■ ALWAYS stop the engine and allow refill, check that no fuel leaks from it to cool before refuelin
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Starting the Engine (continued) 6. When the engine starts, slowly 4. Set the choke lever to the CLOSED move the choke lever to the position if engine is cold. “OPEN” position. (If the engine 5. While holding the outer tube firmly Open stops after the initial start, close the with left hand. Use your other hand choke and restart.) to slowly pull the recoil starter han- 7. Operating the throttle trigger will dle until resistance is felt, then pull automatically disengage the fast quickly
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Operation Shoulder strap IMPORTANT! WARNING! Adjust the shoulder strap so the Always wear a shoulder shoulder pad rests comfortably on the Shoulder strap strap or harness when operating off-side shoulder and the cutting path required for use this unit. Using a harness with a of the cutting attachment is parallel to with Brushcutters brushcutter allows you to main- the ground. Make sure all hooks and tain proper control of the unit and adjustment devices are secure. reduces fatigue
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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 clear 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 General maintenancel WARNING! WARNING! IMPORTANT! Before performing any Non-standard accessories, MAINTENANCE, REPLACEMENT maintenance, repair, or cleaning cutting attachment, or replacement OR REPAIR OF EMISSION CON- work on the unit, make sure the parts may not operate properly with TROL DEVICES AND SYSTEMS engine and cutting attachment are your unit and may cause damage MAY BE PERFORMED BY ANY completely stopped. Disconnect and lead to personal injury. REPAIR ESTABLISHMENT
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Maintenance (continued) 10-Hour maintenance Loosen (more frequently in dusty fasteners conditions) 1. Remove the air filter cover by loos- Prefilter ening the cover screw(s) and lifting. 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. The line is delicate and can be dam- Hooked wire 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 damage 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 Idle Speed Adjustment 1. Place the unit on the ground, then The engine must return to idle speed Idle start the engine, and then allow it to whenever the throttle lever is released. Ajust- idle 2-3 minutes until warm. Idle speed is adjustable, and must ment Screw be set low enough to permit the 2. If the attachment rotates when the engine clutch to disengage the cutting engine is at idle, reduce the idle attachment. speed by turning the idle
