Operator’s manual (EPA) K1250 Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
KEY TO SYMBOLS Key to symbols WARNING! The machine can be a dangerous tool if used incorrectly or carelessly, which can cause serious or fatal injury to the operator or others. Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. Always wear: • Protective helmet • Hearing protection • Protective goggles or a visor • Breathing mask WARNING! Dust forms when cutting, this can cause injuries if inhaled. Use an approved breathing mask.
CONTENTS Contents KEY TO SYMBOLS Key to symbols ............................................................. CONTENTS Contents ...................................................................... WHAT IS WHAT? What is what on the power cutter? ............................... SAFETY INSTRUCTIONS Steps before using a new power cutter. ....................... Personal protective equipment ..................................... Machine′s safety equipment ........................................
WHAT IS WHAT? 19 22 14 1 5 21 6 18 15 20 2 16 3 7 23 4 11 17 8 9 10 12 13 What is what on the power cutter? 1 Cylinder cover 13 Combination spanner 2 Muffler 14 Air filter cover 3 Fuel tank 15 Blade guard/spray guard 4 Start throttle lock 16 Starter handle 5 Choke 17 Operator’s manual (EPA) 6 Throttle lockout 18 Adjustment handle for blade guard 7 Stop switch 19 Front handle 8 Cutting head 20 Starter 9 Cutting arm 21 Decompression valve 10 Belt tensioner 22 Warning de
SAFETY INSTRUCTIONS Steps before using a new power cutter • • • • Please read the operator’s manual carefully. Check the cutting blade’s mounting, see the chapter ”Assembly”. Start the engine and check the idling setting, see instructions under the heading Maintenance. When the carburettor is set correctly the cutting blade should be still while idling. Setting of the idle speed is described in the Operator’s Manual. Set the correct speed according to these instructions.
SAFETY INSTRUCTIONS • Heavy-duty, firm grip gloves. Stop switch Use the stop switch to switch off the engine. • Tight-fitting, heavy-duty and comfortable clothing that permits full freedom of movement. Muffler • Use leg-guards recommended for the material to be cut. • Boots with steel toe-caps and non-slip sole • Always have a first aid kit nearby. ! WARNING! The muffler gets very hot in use and remains so for a short time afterwards.
SAFETY INSTRUCTIONS Throttle lockout The throttle trigger lock is designed to prevent accidental operation of the throttle. When the lock (A) is pressed in this releases the throttle (B). A Checking, maintaining and servicing the machine′s safety equipment ! B The trigger lock remains pressed in as long as the throttle is pressed. When the grip on the handle is released the throttle trigger and the throttle trigger lock both return to their original positions.
SAFETY INSTRUCTIONS Throttle lockout General safety precautions • • A power cutter is designed to cut hard materials, such as masonry. Observe the increased risk of kickback when cutting soft materials. See instructions under the heading How to avoid kickback. • Do not use the power cutter until you have read the entire contents of this Operator’s Manual.
SAFETY INSTRUCTIONS Fuel safety General working instructions (Refuelling/Fuel mixture/Storage.) ! ! WARNING! Take care when handling fuel. Bear in mind the risk of fire, explosion and inhaling fumes. • Never refuel the machine while the engine is running. • Make sure there is plenty of ventilation when refuelling or mixing fuel (gasoline and 2-stroke oil). • Move the machine at least 10 ft (3 m) from the refuelling point before starting it.
SAFETY INSTRUCTIONS Cutting ! • Move the blade slowly forwards and backwards to achieve a small contact area between the blade and the material to be cut. This reduces the temperature of the blade and ensures effective cutting. • Feed down the machine in line with the blade. Pressure from the side can damage the blade and is very dangerous. • The guard for the cutting equipment should be adjusted so that the rear section is flush with the work piece.
SAFETY INSTRUCTIONS How to avoid kickback ! WARNING! Kickback can happen very suddenly and violently; kicking the power cutter and cutting blade back at the user. If this happens when the cutting blade is moving it can cause very serious, even fatal injuries. It is vital you understand what causes kickback and that you can avoid it by taking care and using the right working technique.
SAFETY INSTRUCTIONS High speed handheld machines Our cutting blades are manufactured for high-speed, portable power cutters. If blades from other manufacturers are used, ensure that the blades conform to all regulations and demands that concern this type of power cutter. Test the abrasive disc by hanging it on your finger and tapping it lightly with a screwdriver or the like. If the disc does not produce a resonant, ringing sound it is damaged.
ASSEMBLY Assembling the cutting head Remove the bolt (1) and nut (2). Remove the guard. Fit the drive belt on the clutch drum. Fit the guard and tighten the screws. Do not use warped, notched, indented or dirty flange washers. Do not use different dimensions of flange washers. Fitting the cutting blade Husqvarna cutting blades are manufactured and approved for freehand cutting.
FUEL HANDLING Fuel • Mix (shake) the fuel mixture thoroughly before filling the machine’s fuel tank. • Do not mix more than one month’s supply of fuel at a time. • If the machine is not used for some time the fuel tank should be emptied and cleaned. CAUTION! The machine is equipped with a two-stroke engine and must always been run using a mixture of gasoline and two-stroke engine oil. It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained.
STARTING AND STOPPING Starting and stopping ! WARNING! Note the following before starting: Starting a warm engine Use the same starting procedure as for a cold engine but without setting the choke control in the choke position. Do not start the power cutter without the belt guard fitted. Otherwise the clutch could come loose and cause personal injuries. Always move the machine away from the refuelling area before starting.
MAINTENANCE Tensioning the drive belt • The drive belt is fully enclosed and well protected from dust and dirt. • When tensioning the drive belt, slightly loosen the nuts (A) holding the cutting head and belt guard. • Replace the drive belt. • Assemble in the reverse order as set out for dismantling. • Check that the blade guard over the cutting blade is not cracked or damaged in any other way. Replace when damaged.
MAINTENANCE Fine adjustment of the idle speed T Remove the foam plastic filter. Wash the filter well in tepid soapy water. After cleaning, rinse the filter well in clean water. Squeeze out and allow the filter to dry. NOTE! High pressure compressed air can damage the foam. Adjust the idle speed using the T screw. When an adjustment is necessary, first turn the screw clockwise until the blade starts to rotate. Now turn the screw anti-clockwise until the blade stops rotating.
MAINTENANCE Starter Tensioning the recoil spring • ! WARNING! When the recoil spring is wound up in the starter housing it is under tension and can, if handled carelessly, pop out and cause personal injury. Hook the starter cord in the notch in the pulley and turn the starter pulley about 2 turns clockwise. CAUTION! Check that the pulley can be turned an additional 1/2 turn when the starter cord is pulled all the way out. Always be careful when changing the recoil spring or the starter cord.
MAINTENANCE Spark plug Cooling system The spark plug condition is influenced by: To keep the working temperature as low as possible the machine is equipped with a cooling system. • Incorrect carburetor adjustment. • Wrong fuel mixture (too much oil). • A dirty air filter. The cooling system consists of: These factors cause deposits on the spark plug electrodes, which may result in operating problems and starting difficulties.
MAINTENANCE General maintenance instructions Below you will find some general maintenance instructions. If you have more questions, contact your service agent. 2 13 5 14 6 9 4 11 15 17 1 7 16 10 3 20 12 18 19 Daily maintenance 1 Check that the components of the throttle control work smoothly (throttle control and throttle trigger lock). 2 Check the tension of the drive belt. 3 Check the condition of the blade and the drive gear. 4 Check the condition of the blade guard.
TECHNICAL DATA Engine K1250 Cylinder displacement, cu.in/cm3 7,25/119 Cylinder bore, inch/mm 2,36/60 Stroke, inch/mm 1,65/42 Idle speed, rpm 2500 Recommended max.
FEDERAL EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS The EPA (The US Environmental Protection Agency), Environment Canada and Husqvarna Construction Products are pleased to explain the emissions control system warranty on your 2001 and later small nonroad engine. In U.S. and Canada, new small nonroad engines must be designed, built and equipped to meet the federal stringent anti-smog standards.
! WARNING! Cutting, especially when DRY cutting, generates dust that comes from the material being cut, which frequently contains silica. Silica is a basic component of sand, quartz, brick clay, granite and numerous other minerals and rocks. Exposure to excessive amount of such dust can cause: Respiratory disease (affecting your ability to breath), including chronic bronchitis, silicosis and pulmonary fibrosis from exposure to silica. These diseases may be fatal; Skin irritation and rash.