Shindaiwa C242S Owner'S/Operator'S Manual Download Page 12

341021

OFF

Starting the Engine (continued)

WARNING!

Never start the engine from the  
operating position.

WARNING!

The cutting attachment may rotate 
when the engine is started!

When the Engine Starts...

n

  After the engine starts, allow the engine 

to warm up at idle 2 or 3 minutes before 

operating the unit. 

n

  After the engine is warm, pick up the 

unit and clip on the shoulder harness or 

strap. See page 13.

n

  Advancing the throttle makes the cut-

ting 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 “Adjusting 

Engine Idle” below).

IMPORTANT!

If the engine fails to start after several at-
tempts with the choke in the closed posi-

tion, 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.  

5.  When the engine starts, slowly move the 

choke lever to the “OPEN” position. See 

Figure 24. (If the engine stops after the 

initial start, close the choke and restart.)        

Figure 24

Idle the engine briefly before stopping 

(about 2 minutes), then slide the ignition 

switch to the “O” (Engine 

OFF

) position.

Stopping the Engine

Adjusting Engine Idle

Figure 25

Figure 26

OFF

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.

Idle Speed Adjustment

WARNING!

The cutting attachment must NEVER 
rotate at engine idle! If the idle speed 
cannot be adjusted by the procedure 
described here, return the trimmer to 
your Shindaiwa dealer for inspection.

1.  Place the trimmer on the ground, then 

start the engine, and then allow it to idle 

2-3 minutes until warm.

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 26.

3.  If a tachometer is available, the engine  

idle speed should be final adjusted to  

2,750(±250) rpm min

-1

.

4.  Carburetor fuel mixture adjustments are 

preset at factory and cannot be serviced 

in the field.

T242

C242

Checking Unit Condition

ALWAYS

 make sure the cutting attach-

ment is properly installed and firmly tight-

ened before operation.

NEVER

 use a cracked or warped cutting  

attachment: replace it with a serviceable 

one.

ALWAYS

 make sure the cutting attach-

ment fits properly into the appropriate 

attachment holder. If a properly installed at-

tachment vibrates, replace the attachment 

with new one and re-check. 

ALWAYS

 stop the engine immediately  

and check for damage if you strike a for-

eign object or if the unit becomes tangled. 

Do not operate with broken or damaged 

equipment.

NEVER 

allow the engine to run at high 

speeds without a load. Doing so could  

damage the engine.

NEVER 

operate a unit with worn or  

damaged fasteners or attachment holders.
When transporting, make sure the engine 

is not running and the blade is covered 

with the blade cover.

NEVER

 operate the unit with the cut-

ting attachment shield or other protective 

devices removed!

          WARNING!

A cutting attachment shield or other 
protective device is no guarantee of 
protection against ricochet. YOU MUST 
ALWAYS GUARD AGAINST FLYING 
DEBRIS!

Use only authorized Shindaiwa parts and 

accessories with your Shindaiwa trimmer. 

Do not make modifications to this unit with-

out written approval from Shindaiwa, Inc.

Open

Idle Adjusting 

Screw

12

Summary of Contents for C242S

Page 1: ...lways wear eye protection when operating this machine Do not operate or service this machine unless you clearly understand this manual Keep this manual available at all times so that you can reference...

Page 2: ...should be acted upon to prevent mechanical damage WARNING A statement preceded by the triangular attention symbol and the word WARNING contains information that should be acted upon to prevent seriou...

Page 3: ...ing attachment above waist high Wear appropriate footwear non skid boots or shoes do not wear open toed shoes or sandals Never operate the unit while barefoot Keep a proper footing and do not over rea...

Page 4: ...ield is correctly installed If contact is made with a hard object stop the engine and inspect the cutting attachment for damage When operating in rocky terrain or near electric wires or fences use ext...

Page 5: ...T Front Left Rear Right TRIMMER 4 7 6 0 m s2 4 8 5 2 m s2 BLADE Note 1 3 9 5 7 m s2 4 8 3 2 m s2 Handle Type Loop Type Handle Bicycle Type Handle Figure 4 Specifications are subject to change without...

Page 6: ...ecurely using the hex wrench Before assembling make sure you have all the components required for a complete unit This machine consists of the follow ing components and accessories Carefully inspect a...

Page 7: ...ove the lower cap retaining screws from the handlebar bracket Remove the cap from the bracket See Figure 7 2 Position the handle on the outer tube forward of Handle Positioning Label as shown in Figur...

Page 8: ...3 Connect the bullet shaped end of the throttle cable to the throttle lever on top of the carburetor See Figure 10 CAUTION Wiring runs must not interfere with throttle operation Throttle Cable Ignitio...

Page 9: ...hooked at the hook receiver Sub shield Hook Hook Receiver Cutting Attachment Shield T242 C242 Spacer Spacer Bracket Cutting Attachment Shield NOTE The 242 is shipped with Holder A Holder B shaft bolt...

Page 10: ...NING The blade must fit flat against the holder flange The blade mounting hole must be centered over the raised boss on blade Holder A 2 Install blade Holder B on the output shaft See Figure 19 The re...

Page 11: ...illing the Fuel Tank 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 mix ing oil only Use of non approved mixing oil...

Page 12: ...gine idle If the idle speed cannot be adjusted by the procedure described here return the trimmer to your Shindaiwa dealer for inspection 1 Place the trimmer on the ground then start the engine and th...

Page 13: ...ting Grass Units equipped With a Trimmer Head CAUTION Operation at low speeds can lead to premature clutch failure CAUTION Operation of trimmer without a cutting attachment shield and using excessive...

Page 14: ...w speed operation tends to cause grass and debris to wrap around the cutting head The blade rotates counter clockwise For best performance and to minimize being stuck by debris move the blade from rig...

Page 15: ...from the muffler and fuel tank Check cooling air intake area at base of crankcase Remove all debris Dirt build up in these areas can lead to engine overheating fire or premature wear Clean any debris...

Page 16: ...very 10 to 15 hours of operation n Remove and clean the spark plug Adjust the spark plug electrode gap to 0 6 0 7 mm If the spark plug must be replaced use only an NGK BPMR6A or equivalent resistor ty...

Page 17: ...creen and cover to the muffler See Figure 39 4 Remove the screen and clean it with a stiff bristle brush 5 With a 4 mm hex wrench remove the 3 muffler bolts and the muffler See Figure 39 6 Inspect the...

Page 18: ...er is not used CAUTION Gasoline stored in the carburetor for extended periods can cause hard starting and could also lead to increased service and maintenance cost n Remove the remaining fuel from the...

Page 19: ...start Replace the plug with an NGK BPMR6A or equivalent resistor type spark plug of the correct range Set spark plug electrode gap to 0 6 0 7 mm NO YES What To Check Possible Cause Remedy ENGINE DOES...

Page 20: ...ng dealer 2 750 250 rpm min 1 Reset the switch and re start Refuel See page 11 Replace fuel filter Drain replace with clean fuel See page 11 Clean or replace spark plug tighten the terminal Replace th...

Page 21: ...26 EC as amended Measured sound power level 109dB A Guaranteed sound power level 110dB A Technical documentation is kept by K Maeda DIV Manager Engineering Research and Development DIV Shindaiwa Corp...

Page 22: ...NOTES 22...

Page 23: ...NOTES 23...

Page 24: ...w shindaiwa com Shindaiwa Corporation Head Office 6 2 11 Ozuka Nishi Asaminami Ku Hiroshima 731 3167 Japan Telephone 81 82 849 2220 Fax 81 82 849 2481 2007 Shindaiwa Inc Part Number 62121 94310 Revisi...

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