Backlapping - Jacobsen Fairway 250 JGZZ250 Operation And Maintenance Manual

7 OPERATION

7.11 BACKLAPPING _______________________________________________________

This mower has the ability to allow the reels to be driven in a reverse direction to sharpen the blade on the reels.
• Backlapping is a procedure which grinds the reel to the bedknife with the unit mounted on the mower.
• To remove a large amount of metal from the cutting unit it must be reground on a grinding machine.
• Before you backlap the reels, the manager of the machine must calculate the level of risk to make sure that
the procedure is safe.
• Backlapping must be done by approved personnel.
• You must not apply grinding paste to the reel until it has stopped, the engine is turned off and the parking
brake is applied.
• When you apply grinding paste, the reel must be rotated by a piece of wood and not with your hand.
• Put the reels in the most accessible position to apply the grinding paste.
• When you apply the grinding paste the driver must return to the seat, engage the related controls and run
the reels in reverse direction.
• When you have ground a sharp edge on the blade, turn off the mower and remove any remaining grinding
paste. Set the reel to run in a forward direction and return the vehicle controls to the normal cut positions.
Ransomes Jacobsen grinding paste:
Grinding Paste
80 grit grinding paste, 4.5kg tin
120 grit grinding paste, 4.5kg tin
80 grit grinding paste, 9kg tin
120 grit grinding paste, 9kg
tin
en-51
Part Number
5002488
5002489
5002490
5002491