Shindaiwa HT254 manual

SHIND AIWA OWNER’S/OPERA T OR’S MANU AL HT254 HEDGE TRIMMER Minimize the risk of injury to yourself and others! Read this manual and familiarize yourself with the contents. Always wear eye and hear- ing protection when operating this unit. WARNING! X7502864200 06/10[...]

2 Attention Statements WARNING! A statement preceded by the triangu- lar Attention Symbol and the word "W ARNING" contains information that should be acted upon to prevent serious bodily injury . IMPORT ANT! The operational procedures described in this manual are intended to help you get the most from your unit, and to pro- tect you and o[...]

3 Work Safely Shindaiwa hedge trimmers operate at ver y high speeds and can do serious damage or injur y if they are misused or abused. Never allow a person without training or instruction to operate your unit! Stay Alert Y ou must be physically and mentally fit to operate this unit safely . WARNING! Never operate power equipment of any kind if yo[...]

4 WARNING! Inspect handles for damaged or loose attachments before use. NEVER operate a hedge trimmer with damaged or loose handles. Operating Precautions WARNING! Never transport the hedge trim- ■ mer or leave it unattended with the engine running. An engine that’s running could be accidently acceler- ated causing the blades to oscillate. Make[...]

5 Model HT254-30 HT254-40 Engine Type 4-cycle, horizontal cylinder , air cooled Engine Bore x Stroke 34mm x 27mm (1.34 x 1.06 in) Engine Displacement 24.5cc (1.5 in 3 ) Unit W eight, Less Fuel 5.8 kg (12.8 lb) 6.2 kg (13.7 lb) Unit Dimensions (LxWxH) 1095 x 245 x 230 mm (43.11 x 9.65 x 9.06 in) 1410 x 245 x 230 mm (55.51 x 9.65 x 9.06 in) Fuel Tank[...]

6 WARNING! Do not make unauthorized modications or alterations to this machine or any of its components or accessories. Unit Description IMPORT ANT! The terms “left,” “left-hand,” and “LH”; “right,” “right-hand,” and “RH” ; “front” and “rear” refer to directions as viewed by the operator during normal operation of[...]

7 Handling Fuel D ANGER Fuel is VERY ammable. Use extreme care when mixing, storing or handling or serious personal injury may result. • Use an approved fuel container . • DO NOT smoke near fuel. • DO NOT allow ames or sparks near fuel. • Fuel tanks/cans may be under pressure. Always loosen fuel caps slowly allowing pressure to equali[...]

8 Storage - Fuel storage laws vary by locality . Contact your local govern- ment for the laws affecting your area. As a precaution, store fuel in an ap- proved, airtight container . Store in a well-ventilated, unoccupied building, away from sparks and ames. IMPORT ANT! Stored fuel may separate. AL WA YS shake fuel container thoroughly be- fore e[...]

9 Set the throttle trigger to the “fast idle” position by per for ming the following: 2. Move the ignition stop switch to the rear (towar ds the grip) to the “I” or ON 1. position. See Figure 4. Figure 4 Ignition Switch Ignition ON NOTE: The blade cover is used for transpor tation and storage. Remove blade cover befor e using the unit. (Col[...]

10 Operation Squeezing the throttle increases engine speed, causing the clutch to engage and operate the cutters. ■ Releasing the throttle decreases engine speed, causing the cutters to slow , and then stop altogether as the clutch ■ disengages. Use a sweeping motion when cutting, and vary throttle settings often. ■ Avoid cutting material lar[...]

11 Maintenance and Adjustments IMPORT ANT! Maintenance, replacement or repair of emission control devices and systems may be performed by any repair establishment or individual; however , warranty repairs must be performed by a dealer or service center authorized by Echo, Inc The use of parts that are not equivalent in performance and durability to[...]

12 If the unit does not retur n to idle speed or doesen't reach full rpm, the throttle trigger free play may need to be adjusted as follows: Measure free play at the end of the 1. throttle trigger . Throttle trigger fr ee play should be approximately 5-7 mm (0.2-0.275"). See Figure 14. If adjustment is necessar y , remove the air cleaner [...]

13 Every 10 to 15 hours of operation: Rem ove a nd cl ean t he sp ark p lug . ■ Adjust the spark plug electrode gap to 0.6 mm (0.24 in). If the spark plug must be replaced, use only an NGK CMR5H or equivalent resistor type spark plug of the correct heat range. See Figure 17. CA UTION! Before rem oving the s park pl ug, clean t he area aroun d the[...]

14 Gearcase Lubrication VIEWED FROM THE BOTTOM Gearcase Grease Fitting Every 20 Hours Figure 20 Top of f gear case grease level by using a lever-type grease gun to force 1–2 strokes of high quality lithium-based grease through the gear case grease fitting Remove the gearcase cover , and use solvent and a soft br ush to remove all old grease from[...]

15 135-Hour or Annual Maintenance NOTE: The NGK CMR5H also meets the requirements for electr o magnetic compliance (EMC). CA UTION! Performing a valve adjustment incorrectly may cause hard starting and/or can damage the unit. Refer to the Service ■ Manual for complete valve adjustment procedure and torque specications. If you are unfamiliar wi[...]

16 Carburetor Adjustment Engine Break-In New engines must be operated a minimum duration of two tanks of fuel break-in before carburetor adjustments can be made. During the break-in period your engine performance will increase and exhaust emissions will stabilize. Idle speed can be adjusted as required. High Altitude Operation This engine has been [...]

17 Figure 25 The engine must retur n to idle speed whenever the throttle lever is released. Idle speed is adjustable, and must be set low enough to per mit the engine clutch to disengage the cutters. Adjusting Engine Idle WARNING! The cutters must NEVER engage at engine idle speeds! If the idle speed cannot be ad- justed by the above procedure, ret[...]

18 T r oubleshooting Guide V aporlock. V alve adjustment. Engine hot/heat soaked. Low fuel quality . V alve clearance too tight. V alve clearance too loose. Let cool completely and restar t. Refi ll with fresh, clean unleaded gasoline with a pump octane of 89 or higher mixed with an air cooled engine oil that meets or exceeds ISO-L-EGD and/or JASO[...]

19 ADDITIONAL PROBLEMS Poor acceleration. Clogged air fi lter . Clogged fuel fi lter . Lean fuel/air mixture. Idle speed set too low . Ignition switch tur ned of f. Fuel tank empty . W ater in the fuel. Clogged fuel fi lter . Shor ted spark plug or loose ter minal. Ignition failure. Piston seizure. Ground (stop) wire is disconnected, or switch i[...]

20 ADDITIONAL PROBLEMS Poor acceleration. Clogged air fi lter . Clogged fuel fi lter . Lean fuel/air mixture. Idle speed set too low . Ignition switch tur ned of f. Fuel tank empty . W ater in the fuel. Clogged fuel fi lter . Shor ted spark plug or loose terminal. Ignition failure. Piston seizure. Ground (stop) wire is disconnected, or switch is[...]

21 SHINDAIW A LIMITED W ARRANTY ST A TEMENT FOR PRODUCT SOLD IN USA AND CANADA BEGINNING 01/01/2010 ECHO, INC’S RESPONSIBILITY ECHO Incorporated’s (ECHO, INC.) Limited W arranty , provides to the original purchaser that this Shindaiwa product is free from defects in material and workmanship. Under normal use and maintenance from date of purchas[...]

22 PURCHASED REP AIR P ARTS AND ACCESSORIES • 90-day all applications A TTENTION ENGINE POWERED PRODUCT OWNERS This Shindaiwa engine powered product is a quality-engineered unit which has been manufactured to exact tolerances to provide superior performance. T o help ensure the performance of the unit, it is required to use engine oil which meets[...]

23 ECHO INCORPORA TED EMISSION CONTROL W ARRANTY ST A TEMENT FOR ECHO AND SHINDAIW A BRANDS The Environmental Protection Agency (EP A) and the California Air Resources Board (C.A.R.B.) and ECHO Incorporated (ECHO Inc.) are pleased to explain the emission control system warranty on your 2010 and later equipment/small off-road engine (SORE). New equi[...]

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ECHO Incorporated. 400 Oakwood Road Lake Zurich, IL 60047-1564 U.S.A. T elephone: 1-877-986-7783 Fax: 1-847-540-8416 www .shindaiwa.com Y amabiko Corporation 7-2 Suehirocho 1-Chome, Ohme, T okyo, 198-8760, Japan Phone: 81-428-32-61 18 Fax: 81-428-32-6145 Ser vicing Infor mation Par ts/Serial Number Genuine Shindaiwa Parts and Assemblies for your Sh[...]