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15

Shoulder strap 

required for use 

with Brushcutters

IMPORTANT!

Adjust the shoulder strap so the 

shoulder pad rests comfortably on the 

off-side shoulder and the cutting path 

of  the cutting attachment is parallel to 

the ground. Make sure all hooks and 

adjustment devices are secure.

WARNING!

  Always wear a shoulder 

strap or harness when operating 

this unit. Using a harness with a 

brushcutter allows you to maintain 

proper control of the unit and 

reduces fatigue during extended 

operation.

Shoulder strap

1.  Hook the strap hook to the hanger 

on the outer tube.

2.  Wear the shoulder strap so that the 

hook stays at your right hand side.

3.  Adjust the length of the shoulder 

strap so that you can hold and 

operate the machine comfortably.

NOTE:

Using a shoulder strap when operating 

this unit with a blade allows you to 

maintain proper control of the unit 

and reduces fatigue during extended 

operation.

Your Shindaiwa unit may be equipped 

with one of several Shindaiwa trimmer 

head models, each with features for 

specific applications and/or operational 

requirements.

Cutting grass with a trimmer head

Trimmer head styles:

Semi-automatic

. Trimmer line is 

indexed when the operator taps the  

trimmer head on the ground during 

operation.

Manual

. The operator indexes line 

manually with the grass trimmer 

stopped.

Fixed

. The operator must stop 

the unit and add new lengths of 

trimmer line manually.

Flail

. This device, designed for 

clearing weeds and light brush, 

features three nylon blades 

attached to the head by pivots.

NOTE:

For proper operation, always refer to 

the instructions accompanying the 

trimmer head being used.

NOTE:

Additional hardware may be required to 

mount the Fixed Line or the Flail type  

trimmer heads.

CAUTION! 

Do not push the rotating line into 

trees, wire fences or any material 

that could tangle or break line ends.

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. Cut grass by swinging the 

unit's trimmer head from left to right. Keep 

the trimmer head horizontal.

Engine Operating Speeds

Operate at full throttle while cutting 

grass.

Trimming and Mowing Grass

CAUTION!

 

Operation of trimmer without a 

cutting attachment shield and using 

excessive line length can lead to 

premature clutch failure.

 

Operation at low rpm can lead to 

premature clutch failure.

Cut from left to right

Cut

Return

WARNING!

Remove all objects such 

as rocks, broken glass, nails, wire, 

or string, which can be thrown or 

become entangled in the cutting 

attachment.

CAUTION!

Use only flexible, nonmetallic line 

recommended by the manufacturer. 

Never use, for example, wire or 

wire-rope, which can break off and 

become a dangerous projectile.

Operation 

(continued)

Summary of Contents for C344

Page 1: ...IWA OWNER S OPERATOR S MANUAL WARNING Minimize the risk of injury to yourself and others Readthismanualandfamiliarizeyourselfwiththecontents Always wear eye and hearing protection when operating this...

Page 2: ...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 conditions and are not in...

Page 3: ...jury if they are misused or abused Never allow a person without training or instruction to operate this unit Stay Alert You must be physically and mentally fit to operate this unit safely Safety WARNI...

Page 4: ...ing attachment parallel to the ground Always operate with both hands firmly gripping the unit Wear close fitting clothing to protect legs and arms Gloves offer added protection and are strongly recomm...

Page 5: ...g 15 8 lb Bore x Stroke 38 x 30 mm 1 49 x 1 18 in Displacement 34 cc 2 07 cu in Fuel Oil Ratio 50 1 Shindaiwa Red Armor ISO L EGD ISO CD 13738 and J A S O M345 FD two stroke air cooled engine oil Fuel...

Page 6: ...Cutting attachment shields Cutting Attachment Shoulder Strap w Hip Pad This unit comes fully assembled with the exception of the handlebar cutting attachment shield and cutting attachment Cutting att...

Page 7: ...ate D with notch in gear housing G and insert locking tool to prevent splined shaft from turning Arrow on gear housing flange points to notch location 2 Remove cotter pin A Left Hand thread blade nut...

Page 8: ...stic debris shield with cut off knife Using nylon line heads with metal debris shield can result in trimmer damage caused by operation with excessive line length To advance trimmer line NOTE To advanc...

Page 9: ...using 2 5 x 8 mm screws 2 5 mm nuts 2 5 mm lock washers bracket to shield 2 5 mm nuts 2 5 mm lock washers Bracket to Gear Housing 1 If installed remove nylon line head upper fixing plate shield plate...

Page 10: ...thread nut G Turn nut counterclockwise on PTO shaft to tighten 3 Align hole in adapter plate with notch in gear housing and insert Locking Tool A to prevent splined shaft from turning Arrow on gear ho...

Page 11: ...GD ISO CD 13738 and J A S O M345 FD certified oil will void the engine warranty Handling Fuel DANGER Fuel is VERY flammable Use extreme care when mixing storing or handling or serious personal injury...

Page 12: ...ammable material close to the engine muffler NEVER operate the engine without the muffler and spark arrester screen in place and in good working condition FUEL IS HIGHLY FLAMMABLE ALWAYS store gasolin...

Page 13: ...and pull recoil starter handle upward Hold the unit UPO Open After engine starts move choke to OPEN position Primer Bulb Return Tube Press primer bulb Close choke Set the choke lever to the CLOSED po...

Page 14: ...ing attachment replace it with a serviceable one Checking Unit Condition ALWAYS make sure the cutting attachment fits properly into the appropriate attachment holder If a properly installed attachment...

Page 15: ...e operator must stop the unit and add new lengths of trimmer line manually Flail This device designed for clearing weeds and light brush features three nylon blades attached to the head by pivots NOTE...

Page 16: ...odily contact with the blade ALWAYS KEEP THE HANDLEBAR OR BARRIER BAR SECURELY IN PLACE ON THE UNIT Brushcutter Shoulder Strap A shoulder strap provides additional protection against blade thrust In a...

Page 17: ...ICE CENTER AUTHORIZED BY ECHO INC THE USE OF PARTS THAT ARE NOT EQUIVALENT IN PERFORMANCE AND DURABILITY TO AUTHORIZED PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CONTROL SYSTEM AND MAY HAVE A...

Page 18: ...side face of the filter only CAUTION Never operate the unit if the air cleaner assembly is damaged or missing Prefilter Remove and inspect spark plug spark plug gap all models 0 6 mm 0 024 in Clean th...

Page 19: ...mited 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 return to TDC compression Recheck with prope...

Page 20: ...ldup 6 Reassemble the spark arrester muffler and engine cover in the reverse order of disassembly NOTE Every unit is run at the factory and the carburetor is set in compliance with emission regulation...

Page 21: ...NEVER rotate at engine idle If the idle speed cannot be adjusted by the procedure described here return the unit to your Shindaiwa dealer for inspection Idle Speed Adjustment 1 Place the unit on the g...

Page 22: ...ain all the fuel from the fuel tank 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 1 Prime the primer bulb unti...

Page 23: ...lter 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 p...

Page 24: ...d 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...

Page 25: ...red 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 difficu...

Page 26: ...or have questions 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 WARRAN...

Page 27: ...lined 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...

Page 28: ...28 NOTES...

Page 29: ...never be sold or misused by ECHO Inc Registering your purchase enables us to contact you in the unlikely event of a service update or product recall and verifies your ownership for warranty considera...

Page 30: ...30 NOTES...

Page 31: ...31 NOTES...

Page 32: ...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 requ...

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