Backlapping Kit (Lmac161) - Textron JACOBSEN TR3 Manual De Seguridad, Funcionamiento Y Mantenimiento

9 ADJUSTMENTS
10.1

BACKLAPPING KIT (LMAC161)

This mower is fitted with a device 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.
• Leave the grass boxes in position on the
cutting units as a safety barrier.
• 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.
en-62
SAFETY, OPERATORS & MAINTENANCE MANUAL
Ransomes Jacobsen grinding paste:
80 grit grinding paste, 4.5kg tin,
Part number 5002488
120 grit grinding paste, 4.5kg tin,
Part number 5002489
80 grit grinding paste, 9kg tin,
Part number 5002490
120 grit grinding paste, 9kg tin,
Part number 5002491
1. Open the engine cover and push the Backlap
Valve Lever (A) into the bottom position. Adjust
the Speed Control Valve (B) to give a cutting
cylinder speed of approximately 200 rpm.
Close the engine cover.
2. Once the speed control has been initially
adjusted to the required backlapping speed it
can be left set. When operating in normal
cutting mode the speed control valve is
bypassed and dose not affect the cutting
speed.
JACOBSEN TR3