Efco MT 3700 Operator's Instruction Manual
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- Troubleshooting manual (2 pages) ,
- Operators instruction book (41 pages) ,
- Operators instruction book (64 pages)
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Summary of Contents for Efco MT 3700
- Page 1 MT 3700 ( 2.15 cu.in ) OPERATOR’S INSTRUCTION MANUAL MANUEL D’UTILISATION ET D’ENTRETIEN MANUAL DE INSTRUCCIONES...
- Page 2 INTRODUCTION To correctly use the chain saw and prevent accidents, do not start work without having first carefully read this manual. You will find explanations concerning the operation of the various parts plus instructions for necessary checks and relative maintenance. Note: Illustrations and specifications in this manual may vary according to Country requirements and are subject to change without notice by the manufacturer.
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Page 3: Table Of Contents
MT 3700 ........ -
Page 4: Product Identification
PRODUCT IDENTIFICATION Chain Saw Components 1 - Throttle Trigger Lockout 10 - Throttle Trigger 2 - Air Filter Cover 11 - On/Off Switch 3 - Front Handle 12 - Choke Lever 4 - Chain Brake Lever / Hand Guard 13 - Rear Handle 5 - Muffler 14 - Fuel Tank Cap 6 - Chain... -
Page 5: Safety
SAFETY Understanding Safety Labels - Wear safety strong shoes or boots - This symbol indicates Warning, and having skid-proof sole and anti-pier- Caution. cing insert. - Your manual contains special mes- sages to bring attention to potential - WARNING! Beware of Kickback. safety concerns, machine damage Avoid bar nose contact. - Page 6 SAFETY WARNING: Exposure to vibrations through prolonged use of gasoline powered hand tools could cause blood vessel or nerve damage in the fingers, hands, and wrists of people prone to circulation disorders or abnormal swellings. Prolonged use in cold weather has been linked to blood vessel damage in otherwise healthy people.
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Page 7: Safety Rules
SAFETY RULES Basic Safety Precautions • Read this manual carefully until you completely understand and can follow all safety rules, precautions, and operating instruc- tions before attempting to use the unit. • Restrict the use of your saw to adult users who understand and can follow safety rules, precautions, and operating instructions found in this manual. -
Page 8: Fuel Handling
SAFETY RULES Fuel Handling WARNING: Gasoline is an extremely flammable fuel. Use extreme caution when handling gasoline or fuel mix. Do not smoke or bring any fire or flame near the fuel or the chainsaw (Fig. 7). • To reduce the risk of fire and burn injury, handle fuel with care. -
Page 9: Precautions Against Kickback
SAFETY RULES • As an additional safety precaution, apply the chain brake prior to setting down the saw. • Only use the chain saw in well-ventilated places, do not opera- te the chain saw in explosive or flammable atmospheres or in closed environments (Fig. - Page 10 SAFETY RULES • Do not twist the saw as the bar is withdrawn from an undercut when bucking. Avoid Pull-In: • Always begin cutting with the engine at full speed and the saw housing against wood. • Use wedges made of plastic or wood. Never use metal to hold the cut open.
- Page 11 SAFETY RULES • Do not cut above shoulder height. It is difficult to maintain con- trol of saw above shoulder height. Kickback Safety Features WARNING: The following features are included on your saw to help reduce the hazard of kickback; however, such features will not totally eliminate this dangerous reaction.
- Page 12 CKA requirements per standard. WARNING: Do not mount a bow guide on any Efco chainsaw. The risk of kickback is increased with a bow guide because of the increased kickback contact area.
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Page 13: Precautions To Reduce Vibration Risk
SAFETY RULES WARNING: The computer derived angles of par. 5.11 of ANSI B 175.1 – 2000 may bear no relationship to actual kickback bar rotation angles that may occur in real life cutting situa- tions. In addition, features designed to reduce kickback injuries may lose some of their effective- ness when they are no longer in their original condition, especially if they have been impro- perly maintained. - Page 14 SAFETY RULES • Never touch the chain or attempt to service the saw while the engine is running. • Never use fuel for cleaning operations. • Keep the chain saw in a dry place, off the ground with the chain guard on and the tanks empty. •...
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Page 15: Assembly
ASSEMBLY Assembling the Bar and Chain WARNING: Check the chain tension frequently when operating the chain saw. Never touch or adjust the chain while the engine is running. The saw chain is very sharp, always wear protective gloves when performing maintenance to the chain. 1 Ensure that the chain brake is not set by pulling the chain brake lever / hand guard towards the front handle as shown in Fig. - Page 16 ASSEMBLY turned by hand without binding, see Fig. 28. Ensure that the chain brake is not set. NOTE: If chain is too tight, it will not rotate. Loosen bar nuts slightly and turn adjusting screw 1/4 turn counterclockwise. Lift the tip of the guide bar up and retighten bar nuts. WARNING: Check the chain tension frequently when operating the chain saw.
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Page 17: Operation
OPERATION Chain Tension WARNING: Never touch or adjust the chain while the motor is running. The saw chain is very sharp, always wear protective gloves when performing maintenance to the chain. 1. Stop the engine before setting the chain tension. Loosen the guide bar nuts slightly, turn the chain tensioning screw clockwise to tension the chain. -
Page 18: Bucking Spike
OPERATION Bucking Spike WARNING: Your chain saw is fitted with a bucking spike (A, Fig. 34). The bucking spike is very sharp and can cause injury. Be extremely careful when working near the bucking spike. WARNING: Removal of the bucking spike will violate the saws compliance of SAE J335 and other stan- dards. -
Page 19: Chain Oil System
OPERATION NOTE: 2-Cycle Engine Oil contains a fuel stabilizer and will stay fresh up to 30 days. DO NOT mix quantities larger than usable in a 30 day period. A 2-cycle oil containing a fuel stabilizer is recommended. Fuel Mixture 2-Cycle Engine Oil (25:1) 4% 10 ft Gasoline... -
Page 20: Preparation For Cutting
OPERATION 1. Fill the oil tank every time engine is fueled. Chain saw should use approximately one tank of oil per tank of fuel. 2. The automatic oil pump is a positive displacement pump operated through gears driven off the clutch drum assembly. The pump will not oil at idle speed. -
Page 21: Starting The Engine
OPERATION Work Area Precautions WARNING: Cut only wood or materials made from wood. Do not cut metal, plastics, masonry, or non-wood building materials. • Never allow children to operate your saw. Only allow others to 35 ft use this chainsaw who have read this Operator's Manual or received adequate instructions for the safe and proper use of this chain saw. -
Page 22: Ice Device System
OPERATION • Push the choke lever, (C, Fig. 47) fully down (1). • Pull the starter rope a few times until the first kick over of the engine is heard (no more than five (5) pulls). A new unit may require additional pulls. -
Page 23: Breaking-In The Engine
OPERATION Breaking-in the Engine The engine reaches the maximum power after 5-8 hours of activity. During this period of breaking-in do not make the machine func- tion idly at full throttle, to avoid excessive functioning stress. CAUTION! – During the braking-in period do not vary the carburetion to obtain a presumed power incre- ment;... -
Page 24: Tree Felling
OPERATION Chain Brake Operation Refer to Safety-Chain Brake Section before use. The chain brake Run Position (A, Fig. 53) and Brake Position (B) are illustrated below. The chain brake operating condition should be checked prior to each use as follows: 1. - Page 25 OPERATION WARNING: Periodically glance at the top of the tree during the backcut to assure the tree is going to fall in the desired direction. WARNING: If the tree starts to fall in the wrong direc- tion, or if the saw gets caught or hung up during the fall, LEAVE THE SAW AND SAVE YOURSELF! •...
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Page 26: Bucking
OPERATION DO NOT cut down a partially fallen tree with your saw. Be extremely cautious with partially fallen trees that may be poorly supported. When a tree doesn’t fall completely, set the saw aside and pull down the tree with a cable winch, block and tackle, or tractor. -
Page 27: Limbing And Pruning
OPERATION Logs Under Stress (Fig. 64-65) Make the first bucking cut (F) 1/3 of the way through the log and finish with a 2/3 cut (G) on the opposite side. As the log is being cut, it will tend to bend. The saw can become pinched or hung in the log if you make the first cut deeper than 1/3 of the diameter of the log. - Page 28 OPERATION Limbing Operation (Fig. 70-71) • Always limb a tree after it is cut down. Only then can limbing be done safely and properly. • Leave the larger limbs underneath the felled tree to support the tree as you work. •...
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Page 29: Maintenance
MAINTENANCE Maintenance Chart... -
Page 30: Chain Maintenance
MAINTENANCE Chain Maintenance Use only Dual Raker low-kickback chain on this saw. This fast-cutting chain will provide kickback reduction when properly maintained. For smooth and fast cutting, raker chain needs to be maintained properly. The chain requires sharpening when the wood chips are small and powdery, the chain must be forced through the wood during cutting, or the chain cuts to one side. -
Page 31: Guide Bar Maintenance
MAINTENANCE Top Plate Angle File holders are marked with guide marks to align file properly to produce correct TOP PLATE ANGLE (Fig. 80). G) CORRECT- 30° H) LESS THAN 30° - For Cross Cutting. I) MORE THAN 30°- Feathered Edge Dulls Quickly. Side Plate Angle (Fig. -
Page 32: Carburetor Adjustment
MAINTENANCE Carburetor Adjustment Before adjusting the carburetor, clean the starter cover vents as shown in Illustration Fig. 85, and air filter as shown in Illustration Fig. 86, refer to Operation-Starting Unit and Maintenance-Air Filter Sections for details. Allow the engine to warm up prior to carbure- tor adjustment. -
Page 33: Starter Unit
MAINTENANCE Starter Unit Use a brush to keep the cooling vents of the starter assembly free and clean of debris (Fig. 90). WARNING: The coil spring is under tension and could fly apart causing serious injuries. Never try to disassembly or modify it. Engine Clean the cylinder &... -
Page 34: Chain Brake
MAINTENANCE • Remove the cover (C), diffuser (D) and muffler body (E). • Clean and inspect the spark arrester screen (A). • Reassemble components in reversed order of removal and torque the muffler screws to 70 in/lbs (7.9 Nm). WARNING: If the spark arrester screen is damaged, faulty or deteriorated, replace the entire muffler assembly. -
Page 35: Troubleshooting
TROUBLESHOOTING Using Troubleshooting Chart WARNING: Always stop unit and disconnect spark plug before performing all of the recommended remedies below except remedies that require operation of the unit. When you have checked all the possible causes listed and you are still experiencing the problem, see your Servicing Dealer. -
Page 36: Storage
(called gasohol or E10 or using ethanol, methanol) can attract moisture which leads to fuel mixture separation and formation of acids during storage. Acidic gas can damage the engine. TECHNICAL DATA MT 3700 ENGINE: Displacement: 2.15 cu. in (35.2 cc) Bore: 1.50 in (38 mm) - Page 37 WARNING: To ensure safe and correct operation of the chainsaw, this operator's manual should always be kept with or near the machine. Do not lend or rent your chainsaw without the operator's instruction manual. AVERTISSEMENT: Afin de garantir un fonctionnement correct et en toute sécurité...