Page 2 - Attention Statements; special significance.; Introduction; Contents; A statement preceded by the word “NOTE”; WARNING
2 Attention Statements WARNING! A statement preceded by the triangu- lar Attention Symbol and the word "WARNING" contains information that should be acted upon to prevent serious bodily injury. IMPORTANT! The operational procedures described in this manual are intended to help you get the mo...
Page 3 - Work Safely; Shindaiwa hedge trimmers operate at; Stay Alert; You must be physically and mentally fit to; General Safety Instructions; Minimize the Risk of Fire!; or other readily flammable materials
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 You must be physically and mentally fit to operate this unit safely. WARNING! ...
Page 4 - NEVER; Operating Precautions; blades whenever possible, and always wear gloves to protect hands
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 accel...
Page 5 - Safety Equipment and Labels; Specifications; IMPORTANT; Make sure all information labels are undamaged and readable.
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 Weight, 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...
Page 6 - Unit Description; viewed by the operator during normal operation of this product.; Prior to use; Unit assembly; An Emission Control Label; followed as listed in the Maintenance Section of this manual.; sion may be applicable to California models only.
6 WARNING! Do not make unauthorized modifications or alterations to this machine or any of its components or accessories. Unit Description IMPORTANT! The terms “left,” “left-hand,” and “LH”; “right,” “right-hand,” and “RH” ; “front” and “rear” refer to directions as viewed by the operator during nor...
Page 7 - Handling Fuel; DANGER; Fuel Requirements; NOT; Mixture Oil; Mixing Fuel; Examples of 50:1 mixing quantities; Shindaiwa Red Armor; engine oil may be mixed at 50:1 ratio for application
7 Handling Fuel DANGER Fuel is VERY flammable. 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 flames or sparks near fuel. • Fuel tanks/cans may be under pressure. Always loosen fuel c...
Page 8 - away from sparks and flames.; Mixing Instructions; After use; Starting Procedure; Place the unit on a flat, level sur face.; Filling the Fuel Tank
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 flames. IMPORTANT! Stored fuel may separate. ALWAY...
Page 9 - Choke the engine by moving the choke lever; primer bulb will not flood the engine with fuel.; Cranking the Engine; The recoil starter can be easily; Always engage the starter before attempting to crank the engine.
9 Set the throttle trigger to the “fast idle” position by per forming the following: 2. Move the ignition stop switch to the rear (towards 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 ...
Page 10 - Operation; Avoid cutting material larger than 1.3 cm in diameter.; Stopping the Engine; Burn danger from hot engine!; If the engine does not start; Repeat the appropriate starting procedure for a cold or
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 se...
Page 11 - Maintenance and Adjustments; Daily Maintenance/Inspection; Remove all grass clippings and dir t from the hedge trimmer.; Air Filter; Using non-standard replacement par ts
11 Maintenance and Adjustments IMPORTANT! 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...
Page 12 - Assembly and Adjustments; Throttle Cable Free Play; (more frequently in dusty; Direct the air stream at the inside face of the filter only!
12 If the unit does not return 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 free play should be approximately 5-7 mm (0.2-0.275"). See Figure 14. If adjustmen...
Page 13 - Every 10 to 15 hours of operation:; Remove and clean the spark plug.; The NGK CMR5H also meets the require-; Every 50 hours of operation; line is delicate and can be damaged easily.
13 Every 10 to 15 hours of operation: Remove and clean the spark plug. ■ 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. CAUTION! Before removing the sp...
Page 14 - Gearcase Lubrication; Every 20 Hours; Blades; oils may be used to protect sensitive plants from spotting.; Over-lubricating may cause the
14 Gearcase Lubrication VIEWED FROM THE BOTTOM Gearcase Grease Fitting Every 20 Hours Figure 20 Top of f gearcase grease level by using a lever-type grease gun to force 1–2 strokes of high quality lithium-based grease through the gearcase grease fitting Remove the gearcase cover, and use solvent and...
Page 15 - 35-Hour or Annual Maintenance; Combustion chamber should be decar; Valve Adjustment; Loosen adjuster locknut so that the
15 135-Hour or Annual Maintenance NOTE: The NGK CMR5H also meets the requirements for electro magnetic compliance (EMC). CAUTION! 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 to...
Page 16 - Carburetor Adjustment; be adjusted as required.; by an authorized Shindaiwa dealer.; If the engine is adjusted for operation; engine damage may result.; Spark Arrester Screen Maintenance; Never operate the unit with a
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 requi...
Page 17 - Adjusting Engine Idle; Idle Speed Adjustment; Long Term Storage; Gasoline stored in the carburetor; Damage resulting from stale or contami-
17 Figure 25 The engine must return to idle speed whenever the throttle lever is released. Idle speed is adjustable, and must be set low enough to permit the engine clutch to disengage the cutters. Adjusting Engine Idle WARNING! The cutters must NEVER engage at engine idle speeds! If the idle speed ...
Page 18 - Troubleshooting Guide; ENGINE DOES NOT START OR HARD TO START
18 Troubleshooting Guide Vaporlock. Valve adjustment. Engine hot/heat soaked. Low fuel quality. Valve clearance too tight. Valve clearance too loose. Let cool completely and restart. Refi ll with fresh, clean unleaded gasoline with a pump octane of 89 or higher mixed with an air cooled engine oil th...
Page 19 - ADDITIONAL PROBLEMS; LOW POWER OUTPUT; Cutting attachment
19 ADDITIONAL PROBLEMS Poor acceleration. Clogged air fi lter. Clogged fuel fi lter. Lean fuel/air mixture. Idle speed set too low. Ignition switch turned off. Fuel tank empty. Water in the fuel. Clogged fuel fi lter. Shorted spark plug or loose terminal. Ignition failure. Piston seizure. Ground (st...
Page 28 - Yamabiko Corporation; Servicing Information; Shindaiwa Dealer. When you do need to buy parts; always; have the Model Number, Type and Serial Number of the; Service; vides a direct link if we find it necessary to contact you.; Additional or Replacement Manuals; Replacement Operator and Parts Catalogs; are available from your Shindaiwa dealer or at WWW.SHINDAIWA.; Copyright© 2010 By Echo, Incorporated
ECHO Incorporated.400 Oakwood RoadLake Zurich, IL 60047-1564 U.S.A.Telephone: 1-877-986-7783Fax: 1-847-540-8416www.shindaiwa.com Yamabiko Corporation 7-2 Suehirocho 1-Chome, Ohme, Tokyo, 198-8760, Japan Phone: 81-428-32-6118 Fax: 81-428-32-6145 Servicing Information Parts/Serial Number Genuine Shind...