Echo CSG-7410 Operator'S Manual Download Page 1

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CSG-7410

WARNING

Read the instructions carefully and follow the rules for safe

operation.

Failure to do so could result in serious injury.

OPERATOR’S MANUAL

ENGINE CUT-OFF SAW

X 7 5 0 3 9 5 4 1 0 0

ECHO, INCORPORATED

400 Oakwood Road, Lake Zurich, Illinois 60047-1564
Phone : 847-540-8400

Printed in USA

WARNING

The engine exhaust from this product contains chemicals known to the

State of California to cause cancer, birth defects or other reproductive

harm.

Cancer and Reproductive Harm

www.P65Warnings.ca.gov

Summary of Contents for CSG-7410

Page 1: ...NUAL ENGINE CUT OFF SAW X 7 5 0 3 9 5 4 1 0 0 ECHO INCORPORATED 400 Oakwood Road Lake Zurich Illinois 60047 1564 Phone 847 540 8400 Printed in USA WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm Cancer and Reproductive Harm www P65Warnings ca gov ...

Page 2: ...intenance of the cut off saw as well as the wheels available for it It is important that you follow this information carefully WARNING Improper use or care of this unit or failure to wear proper protection can result in serious injury Read the rules for safe operation and instruc tions in this manual Wear eye and hearing protection and a dust mask when operating Breathing in asbestos fibers can po...

Page 3: ...ssage provides information necessary for the protection of the unit DANGER The safety alert symbol accompanied by the word DANGER calls attention to an act or condition which WILL lead to serious personal injury or death if not avoided CIRCLE AND SLASH SYMBOL This symbol means the specific action shown is prohibited Ignoring these prohibitions can result in serious or fatal injury Locate the safet...

Page 4: ...here is poor ventilation Wheel rorating direction Max spindle speed Cutting may cause sparks from the cut off wheel Make sure there is no flammable substance nearby Purge pump Kickback may force the cutting off wheel up and back toward the operator with a lightning fast reaction Kickback can occur whenever the upper half of the cutting off wheel touches an object while operating the machine Decomp...

Page 5: ... of damaged or missing parts Use the packing list to check for missing parts 13 x 19 mm T wrench Operator s manual ECHO engine cut off saw Warranty sheet Coupler Adapter 25 4 mm CSG 7410 WARNING Read the instructions carefully and follow the rules for safe operation Failure to do so could result in serious injury OPERATOR S MANUAL ENGINE CUT OFF SAW X750 395 410 0 ECHO INCORPORATED 400 Oakwood Roa...

Page 6: ...410 WARNING Read the instructions carefully and follow the rules for safe operation Failure to do so could result in serious injury OPERATOR S MANUAL ENGINE CUT OFF SAW X750 395 410 0 ECHO INCORPORATED 400 Oakwood Road Lake Zurich Illinois 60047 1564 Phone 847 540 8400 Printed in USA 1 23 23 23 23 ...

Page 7: ...ice for enriching the fuel air mixture in the carburetor to aid cold starting Also activates fast idle throttle latch NOMENCLATURE OF PARTS 12 Starter grip Pull handle slowly until starter engages then quickly and firmly When engine starts return handle slowly Do not let handle snap back or damage to unit will occur 13 Air cleaner cover Covers air cleaner 14 Rear handle for the right hand Support ...

Page 8: ...to fill fuel above the shoulder level of fuel tank Operate this gasoline engine cut off saw only in well ventilated areas Do not store the unit with fuel in its tank because a fuel leak could start a fire Do not cause sparks in any area where there are flammable materials Start the engine cut off saw on the ground with the cutting wheel completely in the clear Do not drop start the engine cut off ...

Page 9: ...Always shut off the engine before setting down the saw Never leave the engine cut off saw while the engine is running Always carry the saw with the engine stopped and the hot muffler away from your body Do not touch a hot muffler wheel cylinder cover or cylinder Do not touch high voltage parts such as spark plug and spark plug lead Remove the wheel from the saw prior to transport or storage Store ...

Page 10: ...g debris Hearing protection should be worn See DANGER page 23 Wear a respirator or dust mask APF10 when cutting concrete stone brick or other materials where fine dust is produced while cutting Use water flush to keep down the dust Clothing should be made from fabric containing natural fibres that resist catching fire and do not melt The clothing should cover as much skin area as possible Clothing...

Page 11: ...vibration may cause tingling and burning followed by loss of colour and numbness in a person s fingers We strongly recommend your taking the following precautions because the minimum exposure which might trigger the ailment is unknown Keep your body warm especially head neck feet and ankles and hands and wrists Maintain good blood circulation by performing vigorous arm exercises during frequent wo...

Page 12: ...wed to rotate faster than 3820 rpm if the wheel speed is rated at 3820 rpm Labeled Application Primary Use Other Uses Dry or Water Flush Metal General purpose mild and stainless steel re bar pipe and structural steel Aluminum and soft brass Does not cut non metals very well Dry Ductile Ductile or cast Iron and concrete lined pipe AII except very hard metals Dry Does not cut well when wet Rail Trac...

Page 13: ...ws heat discolouration Dropping a wheel can easily damage it Discard a wheel if you drop it Ring Testing Wheels Cracks or defects in a wheel may not be visible To help in verifying that a wheel is OK to use a ring test Perform the ring test immediately before mounting all new or used wheels Put your finger through the mounting hole to support the wheel Use a non metallic handle of any small tool o...

Page 14: ...ing serious personal injury So may wheels of low speed rating or those that are cracked warped out of round or edge damaged A wheel can stand a lot of cutting pressure as long as the pressure is straight on and not from the side of the wheel This is why you always must make only straight line cuts Saws intended for forcible entry should be equipped with new wheels for each use If the used wheels c...

Page 15: ...o be used 6 Press the snap ring in until it reaches the groove in the drive shaft and secures the adapter If the snap ring is deformed replace it with a new one Installing a Cutting Wheel 1 Insert the bar tool Rotate the drive shaft until the hole in the large pulley and the bar tool aligned 2 Unscrew wheel mounting bolt with the 19 mm end of the box wrench or your fingers 3 Remove wheel bolt and ...

Page 16: ... Do not tighten more than 30 N m 300 kgf cm NOTE Arm may be removed and remounted with wheel on the outboard side of the arm as required for certain procedures Reverse Mounting the Cutter Arm When shipped the cutting wheel is mounted so it is near the center of gravity of the machine The cutting wheel can be moved to a position outside the machine by reverse mounting the cutter arm WARNING Reverse...

Page 17: ...se the cutter arm and mount it in the long hole in the crankcase 13 Put the belt on the pulley 14 Put the pulley cover into the cutter arm Make sure the pulley cover is not mis aligned when putting it into the arm 15 Finger tighten the 2 pulley cover bolts then back them off about 1 turn Adjust the tightness of the belt 16 Tighten the 2 pulley cover bolts Note Tighten it to a torque of 23 to 27N m...

Page 18: ...e all safety warnings and precautions for handling flammable liquids For more detailed safety and first aid information visit www echo usa com for a copy of the Material Safety Data Sheet KEEP OUT OF REACH OF CHILDREN If swallowed do not induce vomiting CALL PHYSICIAN OR A POISON CONTROL CENTER IMMEDIATELY WEAR SAFETY GLASSES when mixing or handling AVOID repeated or prolonged skin contact AVOID i...

Page 19: ...fication and if the second to last character of the Engine Family on the Emission Control Information label sample below is C K or T the emission control system is EM and TWC 3 way catalyst The fuel tank fuel line emission control system is EVAP evaporative emissions Evaporative emissions for California models may only be applicable to fuel tanks An Emission Control Label is located on the engine ...

Page 20: ...eze and release trigger when engine runs to release the fast idle throttle latch setting You now have trigger control of the throttle speed Set saw down on level ground with wheel in the clear Grasp front handle with left hand and hold down rear handle with toe of your boot Never drop start the saw WARNING Wheel will rotate when engine is started at fast idle throttle latch set ting Keep cutting w...

Page 21: ... throttle slightly If it still fails to start revert to the WHEN ENGINE IS COLD starting procedure WARNING With trigger latched wheel will rotate as soon as engine starts Keep wheel in the clear Wheel will rotate for some time after the trigger is released Keep wheel in the clear until all movement stops Starter grip Choke Momentary stop switch Choke WARNING Momentary stop switch automatically ret...

Page 22: ...ht because the saw is hard to control when held up high and dust or sparks will fall on you Wear hearing protection Without it you risk hearing loss especially where bounce back of sound waves off nearby surfaces increases the noise Do not take awkward or risky operating positions Find solid footing for both feet and always hold the saw firmly with both hands Never make one handed cuts DANGER Kick...

Page 23: ...re also causes overheating Cut as shallow and straight a groove as you can If you cut a curve the wheel will start to bind as the cut deepens Go over and over the groove you have started until the cut is completed On cuts of long duration remove saw from cut often to let the wheel cool Never put any side pressure on a engine cut off saw wheel grind on the side of it or use it to flick away debris ...

Page 24: ... plug before assembling or performing maintenance procedures or serious personal injury can result MAINTENANCE INTERVALS Maintenance Procedure Letter Codes I Inspect C Clean R Replace Maintenance Procedure Notes All recommendations to replace are based on the finding of damage or wear during inspection Component system Maintenance procedure Required Skill level Daily or Before use Every refuel Eve...

Page 25: ...acement Procedure 1 Remove the 4 grommets on the air cleaner cover 2 Remove the 4 bolts securing the air cleaner cover and then remove the cover 3 Remove the main and sub air filters The sub air filter can be removed by pulling out the choke and lifting up the filter case and then pressing on the filter from the under side 4 Put the filter case back in position 5 Install new sub and main air filte...

Page 26: ...e 5 Install the spark plug Proper tightness with a cold engine is 17 to 19 N m 170 to 190 kgf cm 6 Many failed plugs can be restored by filing or scraping the electrodes down to bare metal cleaning all deposits off the porcelain insulation around the centre electrode then setting the gap WARNING Fuel vapours are extremely flammable and may cause fire and or explosion Never test for ignition spark ...

Page 27: ...restor Screen 2 Install the wheel 3 Start engine and run several minutes to bring to operating temperature Flash choke twice during warm up to clear any air from the fuel system 4 Stop engine Turn L speed needle counterclockwise CCW to stop Turn H speed needle midway between full clockwise CW stop and CCW stop 5 Idle Speed Adjustment Start engine turn Idle speed adjustment screw CW until the wheel...

Page 28: ... servicing dealer before any further use of the saw Speed WARNING To ensure the wheel does not over speed the engine no load speed must be adjusted to a maximum of 9950 rpm Use a tachometer to measure speed If engine speed exceeds 9950 rpm have the unit ser viced by your nearest ECHO servicing dealer before further use Whenever activated the vibration sensitive governor in the Carburetor high spee...

Page 29: ...ts cracking etc 1 Disconnect the water flush pipe from the pipe connector 2 Loosen the tension screw and then remove the 2 pulley cover bolts 3 Remove the pulley cover along its rail 4 Loosen the clutch cover bolt and then remove the clutch cover 5 Remove the old belt and then remove the cutter arm 6 Put the new belt on the small pulley 7 While pulling the belt in the direction of the cutter insta...

Page 30: ...knob Bolt 8 Fit the cutter arm into the long hole in the crankcase and then put the belt on the large pulley 9 Put the pulley cover on along the outside of the cutter arm Make sure the pulley cover is not misaligned when putting it into the arm 10 Tighten the 2 pulley cover bolts and then back them off 1 turn Adjust the tightness of the belt 11 Tighten the 2 pulley cover bolts Note Tighten to a to...

Page 31: ...fouled or cracked 5 Replace plug 6 Ignition magneto or spark plug wire faulty 6 Contact nearest authorized ECHO servicing dealer Engine hard to start 1 See reasons under will not start 1 See remedies above 2 Water in fuel or fuel has gone stale or sour 2 Fill tank with clean fresh fuel mixture 3 Engine not getting the proper fuel air mixture 3 If over choked and flooded Remove spark plug Push in a...

Page 32: ... dry area free from dust WARNING Do not store in an enclosure where fuel fumes may accumlate or reach an open flame or spark CAUTION Do not lend or rent your engine cut off saw without the Operator s Manual NOTE For future reference you should keep this Operator s Manual If this Operator s Manual has become illegible or is lost please purchase a new one from your ECHO dealer WARNING Momentary stop...

Page 33: ... engine Engine displacement mL cu in 73 5 4 49 Carburetor Diaphragm type Inner vent type Magneto Flywheel magneto CDI type Spark plug NGK BPMR7A Starter Recoil starter Clutch Centrifugal type Maximum shaft brake power kW 3 2 Wide open throttle speed rpm 9650 9350 9750 Idle speed rpm 2800 2600 3000 Throttle control Throttle trigger with throttle lockout Cutting device Belt 6PJ 808 Pulley ratio 2 57...

Page 34: ...AST and EASY NOTE your information will 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 consideration If you do not have access to the Internet you can complete the form below and mail to ECHO Inc Product Registration PO Box 1139 Lake Zurich IL 60047 ...

Page 35: ...35 CSG 7410 NOTES ...

Page 36: ...C72715001001 C72715999999 ...

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