9 MAINTENANCE
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9.17 SHARPENING BLADES ____________________________________________________
Put a wooden block between the blade and cutting unit housing
to prevent the blade to rotate.
When you prepare or sharpen the blade, do not follow the original grind pattern. Grind new cutting edges at an angle. If
the maximum of one half inch (1.3 cm) blade loss has occurred, do not sharpen more, replace the blade.
To prevent a blade that is not balanced, make sure an equal amount of material is removed from both ends of the
blades. A blade that is not balanced will cause vibration and can damage the mower. Use a blade balancer to check the
blade after you sharpen.
Torque center blade bolt to 125-135 ft.Lb. (169 to 183 Nm).
9.18 ELECTRICAL SYSTEM ____________________________________________________________
General precautions to decrease electrical problems are -
• Make sure that all the connections are clean and correctly fastened.
• Check the Interlock system, fuses and circuit breakers at normal intervals. If the Interlock system does not
operate correctly and you can not correct the problem, contact an authorized Jacobsen Dealer.
• Keep the wiring harness away from hot surfaces and moving parts.
• Check the battery and the alternator.
• Do not wash or pressure spray around electrical connections and components.
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 one half inch of material, the
blade tip can break and be discharged from the mower. The
broken blade pieces can cause injury to persons or property
damage.
CAUTION
Always turn the ignition switch to the off position and remove the negative (BLACK) battery cable before you inspect
or service the electrical system.
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