GB ENGLISH DE DEUTSCH IT ITALIANO OPERATOR’S MANUAL ENGINE CUT-OFF SAW BEDIENUNGSANLEITUNG TRENNSCHNEIDER MANUALE PER L’OPERATORE DEL MOTOTRONCATORE CSG-680 WARNING GB Read the instructions carefully and follow the rules for safe operation. Failure to do so could result in serious injury. WARNUNG DE Lesen Sie die Bedienungsanleitung sorgfältig durch und befolgen Sie die Sicherheitsbestimmungen, weil sonst das Risiko schwerer Verletzungen besteht.
Introduction The ECHO model CSG-680 Cut-off Saw is a highperformance petrol-powered tool designed for use with a recommended 355 x 4 x 20 mm abrasive wheel. A water-flush attachment is available for dust control. Specifications, descriptions and illustrations in this manual were accurate at the time of publication, and are subject to change without notice. Illustrations may include optional equipment and accessories, and may not include all standard equipment.
Symbols and signs DANGER CAUTION This symbol accompanied by the word “DANGER” calls attentions to an act or a condition which will lead to serious personal injury or death of operators and bystanders. “CAUTION” indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. Circle and slash symbol means whatever is shown is prohibited.
Description Wheel Shield Front Handle Air Cleaner Cover Nut Wheel P/N X503-005551 Starter Grip Wheel Mounting Bolt Choke Throttle Latch Outer Flange Wheel Blotter Metal Foot Rubber Spark / Dust Shield Fuel Tank Cap Throttle Trigger Ignition Switch Air Cleaner Cover Muffler Wheel Shield Locking Knob Throttle Lockout Rear Handle Idle Speed Adjusting Knob Rear Arm Cover Arm Mounting Nuts Front Arm Cover Tool Kit CSG-680 4
Definition of Terms ANSI – American National Standards Institute. Kickback – A dangerous reaction and movement off the saw, in an upward arc towards the operator, caused by contact with an object at the front segment of the wheel. Arbor – A spindle or axle. Arbor Hole – The mounting hole in the abrasive wheel. No Load Speed – The speed of the engine when no load is applied. Autmatic Belt Tensioner – This feature, a springloaded device in the wheel arm, maintains belt tension.
Operator Safety Precautions Read this cut-off saw operator’s manual carefully. Be sure you understand how to operate this saw properly before you use it. Establish a training program for cut-off saw operators. Use safety footwear, snug-fitting clothing and protective gloves. Wear eye, hearing and head protection devices. Use ballistics chaps or pants when necessary. Clothing of fire-resistant and unmeltable material should be worn by emergency crews exposed to flames or high heat conditions.
Keep a firm grip on the saw with both hands, the right hand on the rear handle, and the left hand on the front handle when the engine is running. Use a firm grip with thumbs and fingers encircling the saw handles. A firm grip will help you to keep control if the saw kickback toward you, or the thrust of the rotating wheel pulls it away from you. Never operate the saw with only one hand. Keep to Left of Cutting Line Keep to the left of the saw so that no part of your body is in line with the cutting wheel.
Preparing for Use Protective Equipment z You must wear eye protection goggles qualified to the CE mark or the latest ANSI Standard Z 87. (Z 87 is stamped on the goggles). These goggles also must be worn under a face screen if one is used. A face screen should be worn when there is a risk from flying debris. WARNING Cut-off saw users risk injury if the saw is used improperly, and / or safety precautions are not followed. Protective clothing and safety gear must be worn when operating a cut-off saw.
Physical Condition Your judgment and / or dexterity may be impaired if you are ill or have taken alcohol or other substances known to affect the way you would function normally. Operate only when sound in mind and body. WARNING Precautions Againt Vibration and Cold It is believed that a condition called Raynaud’s Phenomenon which affects the fingers of certain individuals is brought about by exposure to cold and vibration.
Abrasive Wheel Types and Uses ECHO Reinforced Wheels ECHO Wheels are labeled for the type of materials they are designed to cut. The types of wheels identified below, and other types, may be available from ECHO dealer.
Wheel Blotters and Mounting Flanges Wheel blotters attached to both sides of reinforced wheels are cushions needed to equalize the pressure of the mounting flanges from wear if slippage between the wheel and the flanges occurs. The blotters are 108 mm diameter. Take care that the blotters do not become gouged or deeply scratched and that there is no foreign material on them when mounting the wheel.
Facts About Abrasive Wheel ECHO wheels are made by laying a strong fiber mesh material into a form, pouring a mixture of resin and the abrasive grit particles over the mesh, and adding a second layer of mesh over the mixture. Then the resin and reinforcing mesh are bonded together and cured. The wheel’s ability to cut certain materials are due to the type abrasive, size of the grit and it’s spacing. The reinforcement on both sides adds strength and rigidity. Always read the label on the wheel.
How to Install the Wheel Bar Tool Insert the bar tool. Rotate the drive shaft until the hole in the large pulley and the bar tool aligned. Unscrew wheel mounting bolt with the 17 mm end of the box wrench or your fingers. Remove wheel bolt, washers and outer flange, leaving inner flange in place. Mount wheel on arbor between the two flanges. Install flat washer, lock washer and wheel bolt. Tighten bolt securely.
Operation 2-Stroke Fuel z Fuel is a mixture of regular grade petrol and an air-cooled 2-stroke engine oil of reputable brand name. Minimum 89 Octane unleaded petrol is recommended. Do not use fuel containing methyl alcohol or more than 10 % of ethyl alcohol. z Recommended mixture ratio; 50 : 1 (2 %) for ISO-L-EGD Standard (ISO/ CD 13738), JASO FC, FD grade and ECHO Premium 50 : 1 oil. - Do not mix directly in engine fuel tank. - Avoid spilling petrol or oil. Spilled fuel should always be wiped up.
Stopping Engine Move ignition switch down to “STOP” position. Keep wheel in the clear until all movement stops. If engine does not stop, pull choke control knob out fully to stop engine. The choked engine will slow to a stop. Be sure to keep the wheel in the clear until all movement stops. 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.
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. z Adjust position of wheel guard to direct the discharge away from you. z Prepare to make straight cuts only. Use a snapline to mark long cuts, and follow the marked line carefully. z Take a balanced, comfortable stance on the left side of the saw. Hold saw firmly with both hands. z Always throttle up to cutting speed before letting the wheel make contact.
Troubleshooting Cutting Problems Trouble Wheel stops when cutting pressure is applied Belt slips and cannot be tensioned properly Poor cutting – wheel discoloured at outer area Probable Cause 1. Bearing down too hard. 2. Binding in crooked cut. 3. Binding in closing cut. 4. Loose Rib Ace-belt. Belt worn beyond the limit. Remedy 1. Ease up cutting pressure. 2. Lay out and follow a straight line. 3. Support material so cut will open. 4. Increase belt tension. Replace Rib Ace-belt. Heat damage.
Maintenance and Adjustment Rib Ace-belt Change and Adjustment 1. Move ignition switch down “STOP” position. 2. Remove belt tension (with 13 mm end of the box wrench) by turning the cam anticlockwise. Peep Window Anticlockwise 13 mm End of the Box Wrench 3. Remove rear arm cover and front arm cover. (Save the seven screws.) Large Pulley (B) Cam Small Pulley (A) 4. Use the 13 mm end of the box wrench to loosen arm mounting nuts just a little. Arm Mounting Nuts Rear Arm Cover Front Arm Cover 5.
Air Filter Dust from cutting must be prevented from entering the engine. The three (3) filters in the Air Cleaner System can do this if they are properly maintained and correctly installed. The foam, first filter when used dry should be removed and cleaned each time the fuel tank is refilled. If the foam filter is oiled [recommended to prolong main (paper) filter life], cleaning may be required more frequently if a noticeable drop in power due to a clogged air filter is noted.
Spark Plug 1. Clean the outside of the saw. Then follow instructions to disassemble the air cleaner. NGK BPMR7A Spark Plug 2. Remove five screws and lift off the air cleaner base plate to expose the spark plug. Pull off the cap and remove the plug. 0.6 mm - 0.7 mm 3. The proper spark plug for this engine is NGK BPMR7A. The firing gap between the electrodes should be adjusted to 0.6 mm - 0.7 mm before use. 4. Install the spark plug. Proper tightness with a cold engine is 15 to 17 N•m (150 to 170 kgf•cm).
Carburettor Adjustment Every unit is run at the factory and the carburettor is set in compliance with Emission Regulations. In addition, the carburettor is equipped with “H” (High Speed Needle) and “L” (Low Speed Needle) needle adjustment limiters that prevent settings outside acceptable limits. Idle speed adjustment knob 1. Before adjusting carburettor clean or replace air filter and muffler. 2. Start engine and run several minutes to bring to operating temperature.
Clean Muffler and Cooling System The dust created in cutting is drawn into the cooling system by the rotor fan. It can cover the cooling fins and clog the air passages. Unless the system is cleaned in time, the engine will run too hot. Whenever cleaning the cooling system, take advantage of the necessary removal of the covers, and check the muffler at the same time. 1. Always begin cleaning by blowing or wiping down the outside of the unit before doing any disassembly. 2.
Storage After Use z Inspect and adjust every part of the cut-off saw. - Completely clean every part and repair if necessary. - Apply thin coating of oil on metal parts to prevent rust. z Remove cutting wheel. z Drain fuel tank, pull starter slowly a few times to drain fuel from carburettor. z Pour a small amount of clean motor oil into spark plug hole, pull starter and crank the engine until piston reaches: Top Dead Center. z Store in a dry area, free from dust.
Specifications External dimentions : Without cutting wheel Length × Width × Height mm 740 × 250 × 385 Mass : Without cutting wheel and empty tank kg 11.5 Volume : Fuel tank Fuel ( Mixture ratio ) mL (cm³) 640 Regular grade petrol. Minimum 89 Octane unleaded petrol is recommended. Do not use fuel containing methyl alcohol or more than 10 % of ethyl alcohol. 50 : 1 ( 2 % ) for ISO-L-EGD Standard ( ISO/CD 13738 ), JASO FC, FD grade and ECHO Premium 50 : 1 oil.
Declaration “CE” of Conformity The undersigned manufacturer: KIORITZ CORPORATION 7-2 SUEHIROCHO 1-CHOME OHME ; TOKYO 198-8711 JAPAN declares that the hereunder specified new unit: ENGINE CUT-OFF SAW Brand : ECHO Type : CSG-680 complies with: *the requirements of Machinery Directive 98/37/EC (1998) (use of harmonized standard EN ISO 19432 : 2006) *the requirements of Directive 2004/108/EC (use of harmonized standards EN ISO 14982 : 1998 and CISPR 12) *the requirements of Directive 2002/88/EC *the requirem
7-2 SUEHIROCHO 1-CHOME, OHME, TOKYO 198-8711, JAPAN PHONE: 81-428-32-6118. FAX: 81-428-32-6145.
