B
en 45
OPERATION 6
8. Use the Jacobsen “Cutting Unit Tool” part number 4184540 See below or stout stick, put into the cutting
cylinder between the blades
9. Rotate the cylinder with either the “Cutting Unit Tool” or “Stout Stick” until the obstruction has been removed.
10. Inspect all the cutting surfaces for damage, when necessary replace the damaged components.
6.14 BACKLAPPING_______________________________________________________
This mower is fitted with the ability to allow the reels to be driven in reverse for backlapping.
• Backlapping is a process which will lightly grind the reel to the bedknife whilst mounted on the mower.
• If significant amounts of metal are to be removed then the cutting unit should be reground on a specialised
grinding machine.
• Before any backlapping is carried out, Ransomes Jacobsen recommends that the backlapping process
should be risk assessed as a workshop process by the manager of the machine.
• Backlapping should only be carried out by trained staff.
• Ransomes Jacobsen recommend that grinding paste is only applied to the reel when it is stationery, the
engine is off and the parking brake applied.
• When applying grinding paste the reel should only be rotated by appropriately sized piece of wood and not
by hand.
• Place reels in the most accessible position for applying the paste.
• After applying the grinding paste the person backlapping should return to the seat, engage the relevant
controls and run the reels in reverse.
• When the desired finish is achieved switch off the mower, clean off any surplus paste, reset the reel to
bedknife and return the controls to the normal mow positions.
Jacobsen grinding paste:
Grinding Paste
Part Number
80 grit grinding paste, 4.5kg tin
5002488
120 grit grinding paste, 4.5kg tin
5002489
80 grit grinding paste, 9kg tin
5002490
120 grit grinding paste, 9kg tin 5002491
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