Shindaiwa T344 Owner'S Manual Download Page 17

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135-Hour Maintenance

Use only the type recommended in

the ”Specifications” section or an

equivalent resistor type spark plug

of the correct heat range. Set spark

plug electrode gap to 0.6 -0.7 mm.

IMPORTANT!

If a new gasket is not available and/

or the old gasket is not damaged, the

old gasket may be reused. Never use

cracked or damaged gaskets!

7. Replace rocker arm cover gasket

to assure proper sealing and install

cover.

1. Remove cylinder cover, rocker arm

cover, and spark plug. Rotate the

crankshaft while observing the pis-

ton through the spark plug open-

ing. When the piston is at the top of

the compression stroke (TDC), the

valves can be adjusted.

2. Loosen adjuster locknut so that the

2.5 mm Allen socket head adjust-

ment screw can turn freely.

3. Insert 0.10 mm feeler gauge between

valve stem tip and rocker arm.

4. Turn adjustment screw (clockwise =

tighter, counter-clockwise = looser)

until feeler gauge is almost snug.

Back off just enough to allow gauge

to slip out with limited resistance.

5. While holding the adjustment screw

in place with the Allen driver, tighten

the locknut with a wrench.

Turn engine over several times, and

returnthe to TDC-compression.

Recheck with proper feeler gauge to

make sure clearance adjustment did

not change as a result of tightening

the locknut. Readjust as necessary.

CAUTION!

■

Performing a valve adjustment

incorrectly may cause hard

starting and/or can damage the

engine.

■

If you are unfamiliar with this

engine or uncomfortable with

this procedure, consult with an

authorized Shindaiwa servicing

dealer.

Valve Adjustment

IMPORTANT!

The valve clearance should be adjusted. It is highly recommended that this is

done by a Shindaiwa-trained service technician.

■

Combustion chamber should be

decarbonized, and the valve clear-

ance should be adjusted. It is

highly recommended that this is

done by a Shindaiwa-trained ser-

vice technician.

■

Replace the spark plug annually:

Use only the type recommended in

the ”Specifications” section or an

equivalent resistor type spark plug

of the correct heat range. Set spark

plug electrode gap to 0.6 mm.

Maintenance

(continued)

Summary of Contents for T344

Page 1: ...WNER S OPERATOR S MANUAL 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 X7502831502 03 13 ...

Page 2: ...e alterations to units previously manufactured IMPORTANT The information contained in these instructions describes units available at the time of publication Contents PAGE PAGE IMPORTANT The operational procedures described in this manual are intended to help you get the most from this unit as well as to protect you and others from harm These procedures are guidelines for safe operation under most...

Page 3: ... regulations regarding fire prevention requirements ALWAYS wear eye protection to shield against thrown objects ALWAYS inspect unit before each use Replace any damaged parts NEVER run the engine when transporting the unit NEVER run the engine indoors Make sure there is always good ventilation Fumes from engine exhaust can cause serious injury or death ALWAYS stop the unit immediately if it suddenl...

Page 4: ...refooted Keep a proper footing and do not overreach Maintain your balance at all times during operation Always make sure the appropriate cutting attachment shield is correctly installed and in good condition Do not operate the unit if the cutting attachment shield is missing loose or broken Long term exposure to vibration can damage your hands Prolonged exposure to excessive noise is fatiguing and...

Page 5: ...om thrown objects ALWAYS clear your work area of trash or hidden debris that could be thrown back at you or toward a bystander When operating in rocky terrain or near electric wires or fences use extreme caution to avoid contacting such items with the cutting attachment Do not operate the unit if the cutting attachment shield is missing loose or broken 15 METERS 50 FEET Always make sure the approp...

Page 6: ...nd rear refer to directions as viewed by the operator during normal operation Engine and shaft assembly Cutting attachment shield Cutting attachment Operator s Manual IMPORTANT This spark ignition system complies with the Canadian standard ICES 002 An Emission Control Label is located on the engine This is an EXAMPLE ONLY information on label varies by engine FAMILY PRODUCT EMISSION DURABILITY EMI...

Page 7: ...head 1 Align locking hole in upper plate with notch in edge of gear housing and insert head locking tool D 2 Remove line head E by turning it clockwise until head is completely off of shaft 3 Remove locking tool D C B D E Cutting attachment shield CAUTION Wear Gloves or personal injury may result Cutoff knife is sharp Gearcase and surrounding area may be hot WARNING A standard grass trimmer with a...

Page 8: ...n 1 Position front handle for comfortable operation and secure screw Cable Adjuster Screw Outer Tube Handle 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 ope...

Page 9: ...torage section of this manual Hybrid 4TM Mixture Oil Engine oil meeting ISO L EGD ISO CD 13738 and J A S O M345 FD standards must be used Shindaiwa highly recommends using Shindaiwa Red ArmorTM engine oil in all Shindaiwa Hybrid 4TM engines to protect the engine from harmful carbon build up maintain engine performance and increase engine life Shindaiwa Red ArmorTM engine oil exceeds ISO L EGD and ...

Page 10: ...iquids ALWAYS inspect the unit for fuel leaks before each use During each refill check that no fuel leaks from around the fuel cap and or fuel tank If fuel leaks are evident stop using the unit immedi ately Fuel leaks must be repaired before using the unit ALWAYS move the unit at least 3 meters 10 feet away from a fuel storage area or other readily flam mable materials before starting the engine S...

Page 11: ...ngine Press primer bulb Primer Bulb Starting the Engine continued Open After engine starts move choke to OPEN position IMPORTANT If the engine fails to start after several attempts with the choke in the closed position the engine may be flooded with fuel If flooding is suspected refer to the Starting a Flooded Engine section of this manual 6 When the engine starts slowly move the choke lever to th...

Page 12: ...ent holders WARNING A cutting attachment shield or other protective device is no guaran tee of protection against ricochet YOU MUST ALWAYS GUARD AGAINST FLYING DEBRIS Idle the engine briefly before stopping about 2 minutes then slide the igni tion switch to the O Engine OFF position Stopping the Engine Starting A Flooded Engine 1 Slide the ignition switch to the I ON position 2 Open the choke put ...

Page 13: ...er to the instructions accompanying the trim mer head being used NOTE Additional hardware may be required to mount the Fixed Line or the Flail type trimmer heads CAUTION Operation at low rpm can lead to premature clutch failure Hold the grass trimmer so the trimmer head is angled slightly into the area to be cut To ensure maximum trimmer line service life cut only with the tip of the trimmer line ...

Page 14: ...4 engine that powers your Shindaiwa model is a hybrid 4 stroke engine As a hybrid the engine is lubricated by oil mixed with the gasoline and air from the carburetor that moves through and around the internal parts of the engine in a similar way that a 2 stroke engine is lubricated Without the heavy duty 2 stage air filter equipped on all H4 engines dust and dirt could also move through the engine...

Page 15: ...side to blow debris out and away from the air filter element 6 Install the air filter element pre filter and cover in the reverse order of removal IMPORTANT Direct the air stream at the inside face of the filter only CAUTION Never operate the unit if the air cleaner assembly is damaged or missing CAUTION Before removing the spark plug clean the area around the plug to prevent dirt and debris from ...

Page 16: ...ON Make sure you do not pierce the fuel line with the end of the hooked wire The line is delicate and can be dam aged easily NOTE Federal EPA regulations require all model year 2012 and later gasoline powered engines produced for sale in the United States to be equipped with a special low permeation fuel supply hose between the carburetor and fuel tank When servic ing model year 2012 and later equ...

Page 17: ...allow gauge to slip out with limited resistance 5 While holding the adjustment screw in place with the Allen driver tighten the locknut with a wrench 6 Turn engine over several times and returnthe to TDC compression Recheck with proper feeler gauge to make sure clearance adjustment did not change as a result of tightening the locknut Readjust as necessary CAUTION Performing a valve adjustment inco...

Page 18: ...nimum 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 factory adjusted to maintain satisfactory starting emission and durability performance up to 1 100 feet above sea level ASL 96 ...

Page 19: ...er is available adjust idle Check Specifications page for correct idle speed Loading Trimmer Line 1 Cut one piece of line to recommended length 2 Align arrows on top of knob with openings in eyelets 3 Insert one end of trimmer line into an eyelet and push line equal distance through trimmer head 4 Hold trimmer head while turning knob clockwise to wind line onto spool until about 5 13 cm of each li...

Page 20: ...nder through the spark plug hole Slowly pull the recoil starter 2 or 3 times so oil will evenly coat the interior of the engine Reinstall the spark plug Before storing the unit repair or replace any worn or damaged parts Remove the air cleaner element from the carburetor and clean it thor oughly with soap and water Let dry and reassemble the element Store the unit in a clean dust free area CAUTION...

Page 21: ...ilter and or vent Priming pump not functioning properly The ignition switch is in O OFF position Shorted ignition ground Faulty ignition unit If the plug is wet excess fuel may be in the cylinder The plug is fouled or improperly gapped The plug is damaged internally or of the wrong size Consult with an authorized Shindaiwa servicing dealer Tighten and re test Consult with an authorized Shindaiwa s...

Page 22: ...ed oils at 50 1 gasoline oil ratio Clean repair or replace as necessary Consult with an authorized Shindaiwa servicing dealer Service the air cleaner element Tighten or replace the spark plug Check the Specifications section for the correct plug and gap for your unit Repair or replace fuel filter and or fuel line Refill with fresh clean unleaded gasoline with a pump octane of 89 or higher mixed wi...

Page 23: ...ired Replace the spark plug Check the Specifications section for the correct plug and gap for your unit Restart Idle engine until cool Symptom Possible Cause Remedy Engine stops abruptly Engine difficult to shut off Troubleshooting Guide continued Valve cover is leaking Consult with an authorized Shindaiwa servicing dealer Top of engine is getting dirty and oily Engine idle too high Broken clutch ...

Page 24: ...stions concerning Shindaiwa s Warranty Statement you can contact our Consumer Product Support Department at 1 800 673 1558 or contact us through the web at WWW SHINDAIWA COM PRODUCT WARRANTY PERIOD RESIDENTIAL APPLICATION 5 YEAR WARRANTY Units for residential or non income producing use will be covered by this limited warranty for five 5 years from date of purchase EXCEPTIONS For engine powered pr...

Page 25: ...nance as outlined in the operator s manual is the customer s responsibility Failures due to improper set up pre delivery service or repair service by anyone other than authorized Shindaiwa servicing dealer during the warranty period Certain parts and other items are not warranted including but not limited to lubricants starter cords and engine tune ups Use of spark plugs other than those meeting p...

Page 26: ...26 NOTES ...

Page 27: ...27 NOTES ...

Page 28: ... call 1 877 986 7783 Dealer information is also available on WWW SHINDAIWA COM When presenting your unit for Warranty service repairs proof of purchase is required Consumer Product Support If you require assistance or have questions concerning the application operation or maintenance of this product you may call the Shindaiwa Consumer Product Support Department at 1 877 986 7783 from 8 30 am to 4 ...

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