Jacobsen AR331, Руководство по безопасности, эксплуатации и техническому обслуживанию

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MAINTENANCE AND LUBRICATION 8
8.15 INSPECT BLADES _____________________________________________________
As indicated in the Maintenance chart or the cutting unit is removed from the mower. Inspect the condition of the
blades. Replace any blade that has bends, grooves or cracks.
A bent blade can have a small crack that can increase and cause a piece of the blade to break. The bent blades can
cause vibration and other stress on the mower.
The dust or sand particles can wear a dangerous groove in the blade between the air vanes and the flat part of the
blade. The groove can quickly increase in size and allow a piece of the blade to break.
8.16 BLADE SHARPENING _________________________________________________
When you prepare or sharpen the blade, do not follow the original pattern of the blade. Grind new cutting edges at an
angle. If the maximum (A) of 1/2 inch 13-mm blade loss has occurred, do not sharpen, replace the blade. To stop
any blade balance problems, grind an equal amount of material from both ends of the blades.
A blade that is not balanced will cause vibration and can damage the mower. Use a blade balancer (4254850,
obtainable from your local Ransomes, Jacobsen dealer, distributor) to check the blade after you sharpen.
Torque center blade bolt to 95Nm ft.Lb. (70 ft.Lb).
CAUTION
Be careful when you check the blades to prevent injury to the hands and fingers.
WARNING
Never try to correct or repair a damaged blade. Always replaced a damaged blade.
The bends, grooves or cracks can cause a piece of the blade to become loose and be discharged from the
mower. The broken blade pieces can cause injury to persons or property damage
WARNING
The cutting unit blades can have sharp edges. To prevent injury, use caution when you service or hold the
blade. When you remove more than 1/2 inch 13 mm from the blade, the tip can break and be discharged
from the mower. The broken blade pieces can cause injury to persons or property damage.
NOTICE
• Do not overheat or weaken blades when sharpening.
• Do not straighten bent blades.
• If any part of the blade is worn thin, replace with a new blade.
• Replace cracked or bent blades.
• For greatest safety always use genuine replacement blades.