MAINTENANCE
Sharpening the clearing blade
!WARNING!
Incorrect cutting equipment or an incorrectly sharpened blade increases the risk of kickback.
•See the cutting
equipment’s packaging for correct filing instructions.
•A correctly sharpened blade is a prerequisite for working efficiently and to avoid unnecessary wear to the blade and clearing saw.
•Make sure that the blade is well supported when you use the file. Use a 5.5
mm round file with a file holder.
• The sharpening angle is 15°. Every other tooth is sharpened to the right and the intermediate tooth to the left. When the blade has been heavily pitted by stones the upper side of the teeth can, in exceptional cases, need to be dressed using a flat file. In such cases this takes place before sharpening with the round file. Dressing the top side must be carried out equally for all teeth.
•Adjust the setting. This should be 1 mm.
NOTE: Use only JONSERED replacement parts. Use of other brands of replacement parts can cause damage to your unit or injury to the operator or others. Your warranty does not cover damage or liability caused by the use of accessories and/or attachments not specifically recommended by JONSERED.
Maintenance schedule
Below you will find some general maintenance instructions.
Daily maintenance
•Check throttle trigger and throttle trigger lockout function.
•Check stop switch function.
•Check that blade/trimmer head does not rotate at idling.
•Clean the exterior of the machine.
•Check that the harness is undamaged.
•Check the blade guard for damage or cracks.
•Change the guard in case of impacts or cracks.
•Check that the blade is properly centred, sharp, and without cracks.
•Check the trimmer head for cracks and chips or damage. Replace if necessary.
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•Check that the blade nut is sufficiently tightened.
•Make sure that the blade transport guard is undamaged and that it can be securely fitted.
•Check that nuts and screws are sufficiently tightened.
Weekly maintenance
•Check the starter, especially cord and return spring.
•Clean the carburetor area.
•Clean the exterior of the spark plug.
•Remove it and check the electrode gap.
•Adjust it to 0,5 mm (.020"), or change the spark plug.
•Clean the cooling fins on the cylinder and check that the air intake at the starter is not clogged.
•Check that the angle gear is filled with grease up to 3/4. Use special grease.
•Clean the air filter.
•Clean or replace the muffler’s spark arrest screen (not on mufflers with a catalytic converter).
Monthly maintenance
•Clean the fuel tank.
•Clean the exterior of the carburetor and the space around it.
•Clean the fan and the space around it.
•Check fuel hose for cracks or other damage. Change if necessary.
•Change fuel filter in fuel tank.
•Check clutch, clutch spring and clutch drum for wear. Change if necessary.
•Check electrical wires and connections.
•Change the spark plug.
•Change the airfilter.
•Check and clean the muffler’s spark arrest screen if necessary (only mufflers with a catalytic converter).
26 – English