SHINDAIWA OWNER’S/OPERATOR'S MANUAL
T272 TRIMMER
T272X TRIMMER
T272
T272X
WARNING!
Minimize the risk of injury to yourself and others! Read this manual and familiarize yourself with the contents. Always wear eye and hearing protection when operating this unit.
Part Number 81647 Rev 1/07
Introduction
The Shindaiwa 272-series hand-held Power Equipment has been designed and built to deliver superior performance and reliability without compromise to quality, comfort, or durability.
Shindaiwa high performance engines represent the leading edge of 2-cycle engine technology, delivering exceptionally high power from remarkably low displacement and weight. As an owner/operator, you’ll soon discover for yourself why Shindaiwa is simply in a class by itself!
IMPORTANT!
The information contained in this manual describes units available at the time of publication.
While every attempt has been made to give you the very latest information about your Shindaiwa product, there may be some differences between your 272-series unit and what is described here. Shindaiwa Inc. reserves the right to make changes to products without prior notification, and without obligation to make alterations to units previously manufactured.
WARNING!
The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
Contents |
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Attention Statements...................................... |
2 |
General Safety Instructions........................... |
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Safety Labels................................................... |
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Product Description....................................... |
4 |
Specifications.................................................. |
5 |
Assembly......................................................... |
5 |
Mixing Fuel..................................................... |
9 |
Starting the Engine........................................ |
9 |
Stopping the Engine..................................... |
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Adjusting Engine Idle................................... |
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Check Unit Condition................................... |
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Shoulder Strap.............................................. |
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Cutting Grass................................................ |
11 |
Using a Bade (T272X).................................. |
12 |
Maintenance.................................................. |
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Long Term Storage....................................... |
15 |
Blade Sharpening......................................... |
15 |
Troubleshooting guide................................. |
16 |
Emission System Warranty Statement....... |
1 9 |
Attention Statements
Throughout this manual are special “attention statements”.
WARNING!
A statement preceded by the triangular attention symbol and
the word “WARNING” contains information that should be acted
upon to prevent serious bodily injury.
CAUTION!
A statement preceded by the word “CAUTION” contains information that should be acted upon to prevent mechanical damage.
IMPORTANT!
A statement preceded by the word “IMPORTANT” is one that possesses special significance.
NOTE:
A statement preceded by the word “NOTE” contains information that is handy to know and may make your job easier.
Read and follow this operators manual. Failure to do so could result in serious injury.
Wear eye and hearing protection at all times during the operation of this unit.
Keep bystanders
at least 50 feet (15 m) away during operation.
Beware of thrown or ricocheted objects.
Do not operate this unit with a blade unless the unit is equipped with a Shindaiwa-approved handlebar or barrier.
Always wear a harness when operating this unit with a blade. A harness is also recommended when using trimmer line.
If unit is used as a brushcutter, beware of blade thrust. A jammed blade can cause the unit to jerk suddenly and may cause the operator to lose control of the unit.
General Safety Instructions
Work Safely
Trimmers and brushcutters operate at very high speeds and can do serious damage or injury 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!
Never operate power equipment of any kind if you are tired or if you are under the influence of alcohol, drugs, medication or any other substance that could affect your ability or judgment.
IMPORTANT!
The operational procedures described in this manual are intended to help you get the most from your unit, and to protect you and others from harm. These procedures are guidelines for safe operation under most conditions, and are not intended to replace any safety rules and/or laws that may be in force in your area.
If you have questions regarding your 272-series unit, or if you do not understand something in this manual, your Shindaiwa dealer will be glad to assist you.
You may also contact Shindaiwa, Inc. at the address printed on the back of this manual.
General Safety Instructions
WARNING!
Never make unauthorized attachment installations.
WARNING!
Use Good Judgment
ALWAYS wear eye protection to shield against thrown objects. NEVER operate the engine when transporting the unit.
NEVER operate the engine indoors! Make sure there is always good ventilation. Fumes from engine exhaust can cause serious injury or death.
ALWAYS clear your work area of trash or hidden debris that could be thrown back at you or toward a bystander.
ALWAYS use the proper cutting tool for the job.
ALWAYS stop the unit immediately if it suddenly begins to vibrate or shake. Inspect for broken, missing or improperly installed parts or attachments.
NEVER extend trimming line beyond the length specified for your unit.
ALWAYS keep the unit as clean as practical. Keep it free of loose vegetation, mud, etc.
ALWAYS hold the unit firmly with both hands when cutting or trimming, and maintain control at all times. ALWAYS keep the handles clean. ALWAYS disconnect the spark plug wire before performing any maintenance work.
ALWAYS, if a blade should bind fast in a cut, shut off the engine immediately. Push the branch or tree to ease the bind and free the blade.
The Properly Equipped Operator
Wear close-fitting clothing to |
Wear hearing protection devices and a |
protect legs and arms. Gloves |
broad-brimmed hat or helmet. |
offer added protection and are |
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strongly recommended. Do |
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not wear clothing or jewelry |
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that could get caught in ma- |
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chinery or underbrush. |
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NEVER wear |
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shorts! |
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Keep a proper footing and do not overreach—main- tain your balance at all times during operation.
Wear appropriate footwear (nonskid boots or shoes): do not wear open-toed shoes or sandals. Never work barefooted!
Figure 1
Be Aware of the Working Environment
Avoid long-term operation in very hot or very cold weather.
Be extremely careful of slippery terrain, especially during rainy weather.
If contact is made with a hard object, stop the engine and inspect the cutting attachment for damage.
Reduce the risk of bystanders being struck by flying debris. Make sure no one is within 50 feet (15 meters)—that’s about 16 paces—of an operating attachment.
Make sure bystanders or observers outside the 50-foot “danger zone” wear eye protection.
50 FEET
Be constantly alert for objects and debris that could be thrown either from the rotating cutting attachment or bounced from a hard surface.
Figure 2
Beware of a coasting blade when brushcutting or edging. A coasting blade can injure while it continues to spin after the throttle trigger is released or after the engine is stopped.
When operating in rocky terrain or near electric wires or fences, use extreme caution to avoid contacting such items with the cutting attachment.
Safety Labels
This label indicates the minimum distance between front handle and rear grip per ANSI B175.3.
T272
POSITION HANDLE |
FORWARD OF THIS LINE |
IMPORTANT!
Safety and Operation Information Labels: Make sure all information labels are undamaged and readable. Immediately replace damaged or missing information labels. New labels are available from your local authorized Shindaiwa dealer.
T272X
Figure 3
Product Description
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Ignition |
T272 Grass Trimmer |
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Spark Plug |
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Switch |
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Handle |
Grip |
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Outer Tube |
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Fuel |
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Throttle |
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Tank |
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Trigger |
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Gearcase |
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Cutting |
T272X Grass Trimmer |
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Attachment Shield |
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Spark Plug |
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Cylinder |
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Ignition Cover |
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Switch |
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Trimmer Head |
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Fuel |
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Tank |
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Gearcase |
Handle |
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Barrier Bar |
Throttle |
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Outer Tube |
Trigger |
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Cutting |
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Attachment Shield |
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Figure 4 |
Trimmer Head |
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Using the accompanying illustrations as a guide, familiarize yourself with your unit and its various components. Understanding your unit helps ensure top performance, long service life, and safer operation.
WARNING!
Do not make unauthorized modifications or alterations to either of these units or their components.
Specifications T272X/C272
Engine Code................................................................. |
S272E Engine |
Carburetion.................................................. |
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Walbro diaphragm-type |
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Dry weight, T272 |
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Ignition.................................. |
Fully electronic, transistor controlled |
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(less attachment)................................................ |
6.7kg/14.7 pounds |
Spark Plug................................................................ |
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Champion CJ8Y |
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Dry weight, T272X |
6.7kg/14.8 pounds |
Air Cleaner Type.................................... |
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Non - reversible heavy-duty |
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(less attachment)................................................ |
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filter element |
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Type |
2-cycle, vertical cylinder, air cooled |
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Starting Method |
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Recoil |
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Bore x Stroke |
34 mm x 30 mm/1.3 in. x 1.2 in. |
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Stopping Method............................... |
Slide switch, grounding type |
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Displacement.......................................................... |
27.2cc/1.7 cu. in. |
Handle................................................................. |
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Loop handle (T272) |
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Maximum Power Output............................................ |
1.1 kw/1.4 hp |
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Loop handle with barrier bar (T272X) |
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Operating rpm Range |
4,500-9,000 rpm (min-1) |
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EPA Emission Compliance Period** |
...........................Category A |
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Transmission Type............................. |
Automatic centrifugal clutch |
* Shindaiwa One meets or exceeds these specifications and is recommended |
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through bevel gears |
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Fuel/Oil Ratio |
50:1 with ISO-L-EGD or JASO |
for all Shindaiwa Products |
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** The EPA emission compliance referred to on the emission compliance label lo- |
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FC class 2-cycle mixing oil* |
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cated on the engine, indicates the number of operating hours for which the engine |
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Fuel Tank Capacity............................................. |
670ml/22.6 ounces |
has been shown to meet Federal emission requirements. Category C = 50 hours |
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(Moderate), B = 125 hours (Intermediate) and A = 300 hours (Extended). |
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Specifications are subject to change without notice.
This unit comes fully assembled with the exception of the cutting attachment shield and cutting attachment.
Prior to Assembly
Before assembling, make sure you have all the components required for a complete unit and inspect unit and components for any damage.
nEngine and shaft assembly
nCutting attachment shield
nCutting attachment
nKit containing cutting attachment shield bracket and hardware, this owner's/ opertor's manual and tool kit for routine maintenance. Tool kits vary by model and may include a hex wrench set, spark plug/screwdriver combination wrench and a spanner.
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 normal operation of this product.
Assembly and Adjustments Handle T272/T272X
The handle is attached to the outer tube on the T272/T272X.
To Adjust the Handle.
1.Loosen the 4 socket-head capscrews on the handle. See Figure 5.
2.Position the handle forward of the Handle Positioning Label at the best position for operator comfort (usually about 10 inches ahead of the throttle housing).
3.Secure the handle by alternately tightening the four socket-head cap screws in a diagonal or “criss-cross” fashion.
4 Socket-head Cap-
screws
Handle
Outer Tube
Barrier
Bar
Handle Positioning Label
T272X Shown
Figure 5
Adjusting Throttle Level Free Play T272/T272X
The throttle lever free play should be approximately 9/32 inch (7mm). See Figure 7. Make sure that the throttle lever operates smoothly without binding. If it becomes necessary to adjust the lever free play, follow the procedures and illustrations that follow.
1. Loosen the lock nut on the cable adjuster. See Figure 6.
2.Turn the cable adjuster in or out as required to obtain proper free play of
9/32 inch (7mm). See Figure 7. |
Figure 6 |
3. Tighten the locknut. |
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Locknut |
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9/32 inch |
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(7 mm) |
Cable |
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Throttle Lever |
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Adjuster |
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Free Play |
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Figure 7 |
Assembly and Adjustments Cutting Attachment Shield T272/T272X
Install the Cutting Attachment Shield
1.Insert the cutting attachment shield between the outer tube and the cutting attachment mounting plate. See Figure 8.
NOTE:
It may be necessary to loosen the retaining nut and clamp screw to adjust cutting attachment shield mounting plate.
2.Fit the two shims and the bracket over the outer tube and loosely install the four socket-head screws. See Figure 8.
CAUTION!
Make sure the clamp screw and retaining nut are securely tightened before tightening the four socket head cap screws.
3.Tighten the four socket-head cap screws to secure the cutting attachment shield.
WARNING!
NEVER operate the T272 or T272X without the cutting attachment shield installed and tightly secured!
The line cutter can be positioned in 2 positions to obtain different line length for cutting.
Socket- |
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Head Cap |
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Screw |
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Outer |
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Tube |
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Bracket |
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Cutting Attach- |
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ment Shield |
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Shim |
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Clamp Screw |
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Nuts |
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Line Cutter |
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Shim |
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Cutting |
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Retaining |
Attachment |
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Mounting |
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Nut1025 |
Hex |
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Plate |
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Screws |
Figure 8A |
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Figure 8 |
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WARNING!
The line cutter is very sharp. Wear gloves to protect your hands when handling.
To Change Position of Line Cutter
1.Remove the 2 hex screws with a 4mm hex wrench. See Figure 12A.
2.Rotate line cutter. See Figure 12A.
3.Reinstall the two hex screws and tighten them securely.
NOTE:
Be careful to not lose the 2 nuts in the cutting attachment shield.
Installing a Trimmer Head T272
Retaining
Plug
Holder
Output 
shaft
Figure 9
Install the Trimmer Head.
1.Turn the trimmer over so that the gearcase output shaft faces UP.
2.Remove and discard the black plastic protective cap from the output shaft. See Figure 9.
3.Rotate the holder until the hole in the holder aligns with the notch on the gearcase. Use the long end of the hex wrench to lock the holder and output shaft. See Figure 10.
Hex Wrench
Figure 10
4.While holding the hex wrench, thread the trimmer head onto the output shaft, turning counter-clockwise. Using hand pressure only, tighten the trimmer head firmly on the output shaft.
IMPORTANT!
The trimmer head has a left-hand thread. For removal turn the trimmer head clockwise.
WARNING!
A standard grass trimmer with a loop handle should NEVER be operated with
blade-type attachments. For blade use the trimmer must be fitted with a bicycle-type handlebar or a barrier bar that is located in front of the operator to reduce the risk of the operator from coming in contact with the cutting attachment (per ANSI B175.3). When using
a blade, the unit must also be equipped with a harness or strap.
5.Remove the hex wrench.
6.Adjust the trimmer line length to reach no further than the line
cutter on the cutting attachment shield. Trim to the correct length if necessary.
The T272 should now be completely assembled and ready for use with a trimmer head.
Installing a Trimmer Head T272X
NOTE:
The T272X is shipped with Holder A, the blade retainer (safety clip), Holder B, shaft bolt, and bolt guard installed. The shaft bolt is a LEFT-HAND thread. Remove it by turning CLOCKWISE!
1.With the gearcase output shaft facing up, rotate the gearshaft and holder A until the hole in holder A aligns with the matching hole in the gearcase flange, and then lock the holder to the gearcase by inserting the long end of the hex wrench through both holes. See Figure 11-A.
2.Using the combination spark plug/ screwdriver wrench, remove the shaft bolt, bolt guard, holder B and the safety clip. (The bolt guard, shaft bolt and safety clip are not used with a trimmer head). See Figure 11-A.
3.Install Holder B on the gearcase shaft. The splined hole on Holder B must engage with the gearcase shaft.
4.Using the hex wrench to secure Holder A , install and hand-tighten the trimmer head (counter-clockwise to install).
See Figure 11-B.
5.Remove the hex wrench from the gearcase and holder.
A |
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B |
Hand-tighten Trimmer Head (counter- |
Shaft Bolt |
clockwise to install) |
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Bolt Guard |
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(not used) |
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(not used) |
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Holder B |
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Safety Clip |
Holder A |
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(not used) |
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35007 |
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Gearcase |
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35008 |
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Shaft |
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Hex Wrench |
Figure 11 |
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WARNING!
A standard grass trimmer unit with loop handle should NEVER be operated with blade-type attachments. For blade use, the trimmer must be fitted with a bicycle-type handlebar or barrier bar that is located in front of the operator to reduce the risk of the operator coming in contact with the cutting attachment. (Per ANSI B175.3). When using a blade, the unit must also be equipped with a harness or strap.
The T272X should now be
completely assembled and ready for use with a trimmer head.
Assembly and Adjustments Installing a Blade T272X
NOTE:
The T272X is shipped with Holder “A,” the safety clip, Holder “B,” shaft bolt, and bolt guard installed. The shaft bolt is a LEFTHAND THREAD AND IS REMOVED IN A CLOCKWISE ROTATION!
1.With the gearcase output shaft facing up, rotate the gearshaft and holder "A" until the hole in holder "A" aligns with the matching hole in the gearcase flange, and then lock the holder to the gearcase by inserting the long end of the hex wrench through both holes. See Figure 12.
2.Remove the shaft bolt, bolt guard and holder B. See Figure 12.
3.Slide the safety clip off center on the gearcase shaft. See Figure 12-A.
4.Slide the blade over the safety clip and onto the flange on Holder “A.” See Figure 12-B
5.Lock the blade on the shaft by centering the safety clip. See Figure 12-C.
CAUTION!
Install the blade so its printed surface is visible to the operator when the brushcutter is in the normal operating position.
WARNING!
The blade must fit flat against the holder flange. The blade mounting hole must be centered over the raised boss on blade holder A.
NOTE:
When installing certain blades, it may be necessary to temporarily remove the safety clip.
6.Install Holder “B” on the gearcase shaft. See Figure 13.
IMPORTANT!
The machined recess in Holder “B” must completely surround the safety clip, and both holders must be flat against the surface of the blade.
7.Lock holder "A" to the gearcase by inserting the long end of the hex wrench through both holes as done in step 1 and tighten the shaft bolt securely with the combination spark plug/screwdriver wrench. See Figure 14.
8.Remove the hex wrench.
Shaft Bolt |
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A |
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Bolt Guard |
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Holder “B” |
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Safety Clip |
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Holder |
Gearcase |
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Shaft |
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“A” |
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35010 |
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35011 |
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Hex |
Slide the safety clip off-center |
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Wrench |
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B |
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C |
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Slip the blade in place |
Center the safety clip |
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35012 |
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35013 |
Figure 12 |
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35014 |
Install Holder |
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“B” |
Blade |
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Figure 13
Tighten the assembly |
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Combination Spark |
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Plug/Screwdriver |
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Wrench |
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Blade not shown |
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Holder “B” |
35015 for clarity |
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Bolt Guard |
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Figure 14 |
Hex Wrench |
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WARNING! |
The T272X should now be completely as- |
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sembled to operate with a blade. |
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Never operate the brushcutter without the safety clip installed and both holders tightly secured and flat against the blade surface!
Mixing Fuel
CAUTION!
Some types of gasoline contain alcohol as an oxygenate. Oxygenated gasoline may cause increased operating temperatures. Under certain conditions, alcohol-based gasoline may also reduce the lubricating qualities of some 2-cycle mixing oils. Never use any type of gasoline containing more than 10% alcohol by volume! Generic oils and some outboard oils may not be intended for use in high-perfor- mance 2-cycle type engines, and should never be used in your Shindaiwa engine.
CAUTION!
This engine is designed to operate on a 50:1 mixture consisting of unleaded gasoline and ISO-L-EGD or JASO FC class 2-cycle mixing oil only. Use of non-approved mixing oils can lead to excessive carbon deposits.
nUse only fresh, clean unleaded gasoline with a pump octane of 87
or higher.
nMixed with 50:1 Shindaiwa ISO-L-EGD or JASO FC class 2-cycle mixing oil at a gasoline/ratio of 50:1 (1 gallon of gasoline to 2.6 ozs mixing oil). Shindaiwa One meets or exceeds these requirements.
Filling the Fuel Tank
WARNING!
Minimize the risk of fire!
nALWAYS stop the engine and allow it to cool before refueling. Avoid overfilling and wipe off any fuel that may have spilled.
nWipe all spilled fuel and move the engine at least 10 feet (3 meters) from the fueling point and source before restarting!
nNEVER start or operate this unit if there is a fuel leak.
nNEVER start or operate this
unit if the carburetor, fuel lines, fuel tank and/or fuel tank cap
are damaged.
nNever smoke or light any fires near the engine or fuel source!
nNever place any flammable material near the engine muffler!
nNever operate the engine without the muffler and spark arrester in good working condition.
Oil is a registered JASO FC classified oil and also meets or exceeds ISO-L-EGD performance requirements. Shindaiwa One is recommended for use in all Shindaiwa low emissions engines.
Shindaiwa One also includes a fuel stabilizer.
Examples of 50:1 mixing quantities
n1 gallon of gasoline to 2.6 oz. mixing oil
n5 liters of gasoline to 100 ml. mixing oil
IMPORTANT!
Mix only enough fuel for your immediate needs! If fuel must be stored longer than 30 days and oil with fuel stabilizer is not used, it should first be treated with a fuel stabilizer such as StaBil™.
1.Place the unit on a flat, level surface.
2.Clear any dirt or other debris from around the fuel filler cap.
3.Remove the fuel cap, and fill the tank with clean, fresh fuel.
4.Reinstall the fuel filler cap and tighten firmly.
Starting the Engine
NOTE:
Engine ignition is controlled by a two-posi- tion on-off switch mounted on the throttle body. This switch is typically labeled “I” for ON and “O” for OFF.
IGNITION SWITCH ON
T272/T272X
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Throttle Lock |
Figure 15 |
Button |
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1.Slide the ignition switch to the “ON” position. See Figure 15.
2.Set the throttle lever to the “fast idle” position as follow:
a.Squeeze the throttle lever toward the handgrip on the shaft tube.
b.Depress and hold the throttle lock button.
c.While depressing the throttle lock button, release the throttle lever. See Figure 15.
Return
Tube
Primer Bulb
Figure 16
3.Press the primer bulb until fuel can be seen flowing in the transparent return tube. See Figure 16.
IMPORTANT!
The primer system only pushes fuel through the carburetor. Repeatedly pressing the primer bulb will not flood the engine with fuel.
Choke Control (closed position)
Figure 17
4.Set the choke lever to the CLOSED position if engine is cold. See Figure 17.
Make sure the cutting attachment is clear of obstructions!
Figure 18
5.While holding the outer tube firmly with your left hand, use your right hand to pull the recoil starter handle until resistance is felt, then pull quickly to start the engine. See Figure 18.
CAUTION!
Do not pull the recoil starter to the end of the rope travel. Pulling the recoil starter to the end of the rope travel can damage the starter.
Starting the Engine (continued)
WARNING!
The cutting attachment may rotate when the engine is started!
6.When the engine starts, slowly move the choke lever to the "OPEN" position. See Figure 19. (If the engine stops after the initial start, close the choke and restart.)
Choke Control (open position)
WARNING!
Never start the engine from the operating position.
7.Operating the throttle will automatically disengage the fast idle setting.
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, move the choke lever to the open position and repeatedly pull the recoil starter to remove excess fuel and start the engine. If the engine still fails to start, refer to the troubleshooting section of this manual.
Figure 19
When the Engine Starts
nAfter the engine starts, allow the engine to warm up at idle 2 or 3 minutes before operating the unit.
nAfter the engine is warm, pick
up the unit and clip on the shoulder strap or harness if so equipped. See page 11.
nAdvancing the throttle makes the cutting attachment turn faster; releasing the throttle permits the attachment to stop turning. If the cutting attachment continues to rotate when the engine returns to idle, carburetor idle speed should be adjusted (see below).
Stopping the Engine
T272/T272X
IGNITION
SWITCH
OFF
27029
Figure 20
Idle the engine briefly before stopping (about 2 minutes), then slide the ignition switch to the “O” (OFF) position. See Figure 20.
Engine Idle Adjustment
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 cutting attachment when the throttle is released.
Idle Speed Adjustment
WARNING!
The cutting attachment must NEVER rotate at engine idle! If the idle speed cannot be adjusted by the proceedure described here, have the unit inspected at an authorized Shindaiwa dealer.
1.Place the unit on the ground, then start the engine and allow it to idle for 2-3 minutes until warm.
Idle
Adjusting Screw
Figure 21
2.If the attachment rotates when the engine is at idle, reduce the idle speed by turning the idle adjustment screw counter-clockwise.
See Figure 21.
3.If a tachometer is available, the engine idle speed should be final adjusted to 3,000 (±250) rpm (min-1).
NOTE:
Carburetor fuel mixture adjustments are preset at factory on units with emission control systems and cannot be serviced in the field.
10
Check Unit Condition
NEVER operate the unit with the cutting attachment shield or other protective devices (harness, ignition switch, blade retention clip, etc.) removed!
WARNING!
A cutting attachment shield or other protective device is no guarantee of protection against thrown objects. YOU MUST ALWAYS GUARD AGAINST FLYING DEBRIS!
Shoulder Strap T272X
IMPORTANT!
Adjust the shoulder strap or harness 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.
T272
NOTE:
Although a shoulder strap accessory is not required for use with a grass trimmer, a shoulder strap can increase operator comfort during extended periods of operation.
Use only authorized Shindaiwa parts and accessories with your Shindaiwa trimmer or brushcutter. Do not make modifications to the unit without the written approval of Shindaiwa, Inc.
ALWAYS make sure the cutting attachment is properly installed and firmly tightened before operation.
NEVER use a cracked or warped cutting attachment: replace it with a serviceable one.
ALWAYS make sure the cutting attachment fits properly into the appropriate cutter holder. If a properly installed attachment vibrates, replace the attachment with a new one and re-check.
Shoulder Strap recommended for use with grass trimmers
Figure 22
ALWAYS stop the engine immediately and check for damage if you strike a foreign object or if the unit becomes tangled. Do not operate with broken or damaged equipment.
NEVER allow the engine to operate at high RPM’s without a load. Doing so could damage the engine.
NEVER operate a unit with worn or damaged fasteners or attachment holders.
NEVER cut with dull blades. Doing so will increase the risk of blade thrust and may also damage your equipment.
Using a T272X with a Blade
WARNING!
Always wear a shoulder strap when operating this unit with a blade. A shoulder strap is also recommened when using trimmer line.
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.
Cutting Grass—Units Equipped with a Trimmer Head
Your Shindaiwa T272 or T272X Grass Trimmer may be equipped with one of several Shindaiwa trimmer head models, each with features for specific applications and/or operational requirements.
For proper operation, always refer to the instructions accompanying the trimmer head being used. Available trimmer head styles include:
nSemi-automatic. Trimmer line is indexed when the operator taps the trimmer head on the ground during operation.
nManual. The operator indexes line manually while the grass trimmer is stopped.
nFixed. The operator must stop the unit and add new lengths of trimmer line manually.
nFlail. This device, designed for clearing weeds and light brush, features three nylon blades attached to the head by pivots.
CAUTION!
Do not push the rotating line
into trees, wire fences or any material that could tangle or break line ends.
Engine Operating Speeds
Operate the unit at full throttle while cutting grass.
WARNING!
Operation at low rpm (min-1) can lead to premature clutch failure.
Trimming and Mowing Grass
Figure 23
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. See Figure 23.
Edging
Tilt the handle about 100° to the right (from horizontal) and move forward, holding the trimmer vertical as shown in Figure 24.
Figure 24
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Using A Brushcutter Blade T272X
WARNING!
nBefore working with a bladeequipped unit, always inspect and clean the area of objects that could interfere with or damage the blade.
nNever use a blade near sidewalks, fence posts, buildings or other objects that could cause injury or damage.
nNever use a blade for purposes other than those for which it was designed.
nWhenever you strike a hard object with a blade, always stop the brushcutter and carefully inspect the blade for damage. NEVER OPERATE THE UNIT WITH A DAMAGED BLADE!
nA blade-equipped unit must be equipped with a bicycle-type handlebar or barrier bar as well as a harness or shoulder strap.
nAlways make sure the cutting attachment shield is properly installed before operating this unit.
The blade rotates counter-clockwise. For best performance and to minimize being stuck by debris, move the blade from right to left while advancing on your work.
Position the blade so cuts are made between the blade’s 7 o’clock and 11 o’clock positions (as viewed from above). DO NOT cut between the 11 o’clock and 5 o’clock positions. See Figure 25.
Eleven
O’Clock
O N |
|
|
D |
O |
|
|
|
T |
|
|
C |
|
|
U |
|
|
T |
Blade
Rotation
OK To Cut
Blade Thrust
‘Blade thrust’ is a sudden sideways or backward motion of the brushcutter. Such motion may occur when the blade jams or catches on an object such as a sapling tree or tree stump. BE CONSTANTLY ALERT FOR BLADE THRUST AND GUARD AGAINST ITS EFFECTS!
Brushcutter Handlebar
WARNING!
nWhen cutting wood with a blade, feed the blade slowly.
Never strike or “slam” the spinning blade against the wood.
nDO NOT use 2-tooth or nonShindaiwa approved 4-tooth cutting blades with Shindaiwa trimmers and brushcutters.
A brushcutter’s handlebar helps prevent the operator from moving forward or the unit moving rearward; thus preventing inadvertent bodily contact with the blade. ALWAYS KEEP THE HANDLEBAR SECURELY IN PLACE ON THE UNIT!
Shoulder Strap
A shoulder strap provides additional protection against blade thrust. Plus, a shoulder strap gives significant support and comfort to help ensure safe and efficient operation.
When operating a blade equipped trimmer, make sure the shoulder strap is adjusted properly to the operator using the unit.
Seven |
Five |
O’Clock |
O’Clock |
Engine Operating Speeds
Operate the unit at full throttle while cutting. Best fuel efficiency is obtained by releasing the throttle when swinging back after a cut.
nTo prevent possible engine damage, do not allow the brushcutter to operate at high speeds without a load.
nAvoid cutting at low engine speeds. Doing so can lead to rapid clutch wear. In addition, slow-speed operation tends to cause grass and debris to wrap around the cutting attachment.
Vertical cuts
Hold the trimmer with the blade at a 90° angle to the ground so the blade’s bottom edge rotates toward the operator. Move the blade from top to bottom through the cut, and cut only with the bottom edge of the blade. See Figure 25.
WARNING!
When making vertical cuts, never allow the blade to exceed waist height.
Cut on the left side of the blade. Keep your body outside the path of blade rotation
Figure 26
Figure 25
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