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CSG-670 TYPE1-E

CUTTING TECHNIQUE

The main objectives are to avoid overheating the
wheel, and to prevent it from being pinched or
trapped or stressed in any way.

Adjust position of wheel guard to direct the
discharge away from you.

Prepare to make straight cuts only. Use a snap-
line to mark long cuts, and follow the marked
line carefully.

Take a balanced, comfortable stance on the left
side of the saw. Hold saw firmly with both
hands.

Always throttle up to cutting speed before letting
the wheel make contact. The saw may be jerked
forward, causing loss of control, if wheel is in
contact during throttling up. Carefully let cutting
edge of wheel make light contact with the work.
Do not push or bounce the wheel onto the work.
Hold saw steady. Do not let it tilt or wobble.

Do not let the wheel stop in one place, but keep
it moving - in one direction, or back and forth,
along the line of cut. Cutting in one spot causes
heat build-up which can damage or glaze the
wheel. Too much cutting pressure 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 cut-off saw
wheel, grind on the side of it or use it to flick
away debris.

When cutting large diameter pipe, cut 360
degrees around and try not to cut through. If a
large segment of the wheel breaks through, the
wheel may catch and kick out at lightning-fast
speed.

Before cutting materials which are not supported
along their entire length, provide support to
prevent binding. Also be aware that the top
section will settle on the wheel if a column is cut
in two.

NOTE

Always cut at full throttle. Cutting at less than full
throttle may harm the clutch as it will overheat
during slippage.

   DANGER

Do not cut with the portion of the wheel
running from just below horizontal to just
past top dead center. This is the zone of
contact where the saw is likely to be kicked
upward and backward towards you.

FOLLOW SNAP LINE

KEEP WHEEL
MOVING

CUT IN A
STRAIGHT LINE

SAW WILL BIND IN
CROCKED CUT

ROLL PIPE TO CUT
360° AROUND

TRY NOT TO LET WHEEL
BREAK THROUGH IN ONE
PLACE

KICKBACK
DANGER
ZONE

Summary of Contents for Power Blend CSG-670

Page 1: ...OPERATOR S MANUAL ENGINE CUT OFF SAW CSG 670 TYPE1 E WARNING READ INSTRUCTIONS CAREFULLY AND FOLLOW RULES FOR SAFE OPERATION FAILURE TO DO SO COULD RESULT IN SERIOUS INJURY...

Page 2: ...12 x 1 8 x 25 32 abrasive wheel A water flush attachment is available for dust control Use only ECHO s wheels or other wheels having a minimum spindle speed rating of 6 000 r min or higher This manua...

Page 3: ...ead a new one can be ordered from your ECHO dealer DANGER Always cut at wide open throttle and with the wheel fully up to speed Failure to do so may cause premature belt or wheel wear 1 Read and under...

Page 4: ...FLANGE WHEEL BLOTTER RUBBER SPARK DUST SHIELD FUEL CAP IGNITION SWITCH THROTTLE TRIGGER THROTTLE LATCH METAL FOOT CHOKE STARTER GRIP AIR CLEANER COVER NUT FRONT HANDLE AIR CLEANER COVER THROTTLE LOCK...

Page 5: ...ION SWITCH The device which allows the operator to run or stop the engine KICKBACK A dangerous reaction and movement off the saw in an upward arc towards the operator caused by contact with an object...

Page 6: ...or replace It is not permitted to fill fuel above the shoulder level of fuel tank Operate this gasoline engine saw only in well ventilated areas Do not cause sparks in any area where there are flamma...

Page 7: ...sive cut off saw wheel or put any side pressure on the wheel during cutting Avoid letting the saw tilt or wobble off line Use new properly qualified wheels of correct diameter thickness and mounting h...

Page 8: ...ring protection should be worn See WARNING DANGER page 15 Wear a respirator or dust mask when cutting concrete stone brick or other materials where fine dust is produced while cutting Use water flush...

Page 9: ...d vibration may cause tingling and burning followed by loss of color and numbness in a person s fingers We strongly recommend your taking the following precautions because the minimum exposure which m...

Page 10: ...DRY ECHO REINFORCED WHEELS WHEEL SPEED RATING The speed rating printed on these reinforced wheels could range from 6 000 to 6 300 r min This is the minimum acceptable wheel speed rating for this unit...

Page 11: ...d Do not destroy cushioning effect by making mounting bolts too tight Never fasten while applying your weight Otherwise the thread could be broken Proper torque is 20 N m 15 ft lbs Examine wheel caref...

Page 12: ...n 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 by avoiding saw tilt or wobbling of...

Page 13: ...not cocked on the mount or bolt threads Do not make bolt so tight as to destroy the cushion supplied by the wheel blotters Never fasten while applying your weight Otherwise the thread could be broken...

Page 14: ...SAW BLADE 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 latched throttle...

Page 15: ...ine has cooled But to avoid the possibility of over choking and flooding always first try to start a warm engine without choking it SEQUENCE AFTER STARTING ENGINE CUTTIING ASPHALT TAR AND REINFORCED M...

Page 16: ...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 c...

Page 17: ...air mixture 4 Carburetor out of adjustment 1 Dirt in carburetor or fuel line 2 Carburetor out of adjustment 3 Weak or intermittent spark 1 Not enough oil 2 Air passages around cylinder clogged 3 Carbu...

Page 18: ...ard edge of the peep window 8 Lightly swing the tip of the arm up and down several times This sets the tension automatically 9 Tighten the arm mounting nuts fully and reinstall the wheel shield adjust...

Page 19: ...the wing nut and remove air cleaner cover 3 Before removing the filters clean the accumulated dust from the filters and air cleaner base plate with a soft brush or by gently blowing DO NOT USE COMPRES...

Page 20: ...late and shield 4 Reinstall wheel between inner and outer flanges NOTE Hub of outer flange fits inside larger hub of inner flange Do not reverse flange position or the wheel will be locked SPARK PLUG...

Page 21: ...trouble with the carburetor contact your dealer Every unit is run at the factory and the carburetor is set in compliance with Emission Regulations In addition the carburetor is equipped with H High S...

Page 22: ...CHECKS CLUTCH Slipping of the clutch under a cutting load is not the only thing that can happen to a clutch Another problem may appear during setting of the carburetor for proper idling speed The clu...

Page 23: ...Cutting wheel 305 mm 20 mm dia 12 0 in 0 787 in dia 305 mm 25 4 mm dia with adapter 12 0 in 1 0 in dia Vibration reduction system Rubber isolaters mounted between the engine and the handles Air clean...

Page 24: ...USA X750 007 46 1 X750 410 440 1 ECHO INCORPORATED 400 Oakwood Road Lake Zurich Illinois 60047 1564 Phone 847 540 8400 Printed in Japan 0511ke 0890 ES...

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