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Manafacture: Hayter Mowers
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manual abstract
1. Make sure the spark plug is clean. Clean the spark plug by carefully scraping the electrodes (do not sand blast or use a wire brush). 2. Check the spark plug gap with a feeler gauge. See “Product Specifications” for the correct spark plug gap and replacement spark plug. 3. Before installing the spark plug, coat the threads lightly with oil for easy removal. Tighten the spark plug to a torque of 15 foot-pounds. Figure 13 Spark Plug Feeler Gauge 0.030” HOW TO ADJUST THE HEIGHT OF THE HANDLEBAR Use the knobs, on each side of the handlebar, to adjust the height of the handlebar. 1. Hold the handlebar with one hand and loosen both knobs until the ratchet teeth are disengaged. Do not remove the knobs. See Figure 14. 2. Move the handlebar up or down to the desired position, then align the ratchet teeth. Make sure both sides of the handlebar are level. 3. Tighten the knobs. Handlebar Figure 14 Ratchet Teeth Knob F-050202L 16 MAINTENANCE SERVICE AND ADJUSTMENT WARNING: Before you inspect, clean or service the machine, stop the engine. Make sure that all moving parts have stopped. Disconnect the wire from the spark plug. HOW TO REPLACE THE TRIMMER LINE For the best performance, use a heavy IMPORTANT: To extend the life of the trim- gauge 3.3mm (0.130” diameter) trimmer mer line, keep the trimmer line moist. If not line. Cut the length of the trimmer line to kept moist, the nylon trimmer line will be52cm (21.5 inches). Do not allow the length come dry and brittle. Keep extra trimmer of the lines to vary more than one inch. This line in a can of water. The line will then stay is important to make sure the trimmer head flexible and easy to change. A flexible line is balanced and does not vibrate. will also last much longer. HOW TO CHANGE TRIMMER LINES When the trimmer line becomes worn to half the original length, replace the trimmer line as follows: 1. Stop the engine. Wait for all moving parts to stop. 2. Remove worn trimmer line from line retainer. 3. First, thread the ends of the new trimmer line through the outside loops. Line Retainer Trimmer Line 4. Next, take the ends of the line, cross over the line retainer, and thread the ends through the centre hole. Line Retainer 5. Then, check to make sure that the ends of the line are even. F-050202L 17 MAINTENANCE F-050202L 18 HOW TO REPLACE THE DRIVE BELT To replace the drive belt, the trimmer head and shield must be removed as follows. WARNING: Before you remove the drive belt, disconnect the wire from the spark plug. 1. Remove the two fasteners that hold the rear of the shield to the trimmer housing (See Figure 15). 2. Remove the four fasteners that hold the front of the shield and trimmer head to the trimmer housing. 3. Remove the “V” pulley from the idler bracket. 4. Raise the front of the trimmer housing and remove the drive belt. On some models, it is necessary to loosen the mounting bolt for the drive pulley to remove the drive belt (see Figure 16). Do not bend the belt guides. NOTE: Make sure you replace the drive belt only with a replacement belt from the factory. 5. To assemble the drive belt, reverse the above steps. Make sure all fasteners are tight. Make sure the mounting bolt for the drive pulley is tight. 6. Check the routing of the drive belt. Make sure the drive belt is inside of all belt guides shown in Figure 16. IMPORTANT: Test the drive system. Start the engine and move the throttle control to the FAST position. Engage and disengage the trimmer head several times. When disengaged, make sure the trimmer head completely stops when resting on the ground. If the trimmer head continues to rotate, take the machine to the nearest authorised Service Dealer. Figure 15 Trimmer Head Shield Drive Belt Trimmer Housing Figure 16 Belt Guide Drive Belt Belt Guide Belt Guide Mounting Bolt Drive Pulley “V” Pulley MAINTENANCE STORAGE WARNING: Do not remove petrol while inside a building, near a fire, or while you smoke. Petrol fumes can cause an explosion or a fire. When the machine is put in storage for thirty days or more, follow the steps below to make sure the machine is in good condition the following season. Trimmer . Completely clean the machine. . Put the machine in a building that has good ventilation. Engine To prevent engine damage when the machine is in storage for 30 days or more, follow the steps below: . Let the engine run until it is out of petrol. . Drain the oil from the warm engine. Fill the engine crankcase with new oil. . Remove the spark plug from the cylinder. Pour one ounce of oil into the cylinder. Slowly pull the recoil starter handle so that the oil will protect the cylinder. Install a new spark plug in the cylinder. . Clean dirt and debris from the cylinder cooling fins and the engine housing. F-050202L 19 TROUBLE SHOOTING CHART TROUBLE CAUSE CORRECTION Engine does not start Spark plug wire disconnected. Connect spark plug wire. Engine not primed. Prime engine. Defective or incorrectly gapped spark plug. Inspect or replace spark plug. Fu...