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wood and not by hand.
•
Place cylinders in the most accessible position for applying the paste.
•
After applying the backlapping paste, the person backlapping must return to the seat, engage the
relevant controls and run the cylinders in reverse.
•
When the desired finish is achieved switch off the mower, clean off any surplus paste, reset the cylinder
to bottom blade and return the controls to the normal mow positions.
Ransomes Jacobsen backlapping paste:
backlapping Paste
80 grit backlapping paste, 4.5kg tin
120 grit backlapping paste, 4.5kg tin
80 grit backlapping paste, 9kg tin
120 grit backlapping paste, 9kg tin
PROCEDURE
1.
With the machine turned off and stationary, apply an even coat of Backlapping compound to the entire
length of each blade of the cylinder.
2.
Set Engine Speed control to Minimum Low Idle Speed ensuring cylinders will rotate at there
slowest speed.
3.
Start the engine.
4.
Set Backlap to Enabled (6.5.11) Engage PTO, Engage Cylinders by giving Lower command using Lift /
Lower Lever. Run the Cylinders for a short period.
5.
Gradually adjust Cylinder to Bedknife. Stop Machine and repeat steps 1-4 until Blade is uniformly
sharp. The process should only require the Cylinder to be engaged for no longer than 5minutes of
operation. If the blades require more than this then consider having the cylinder professionally Ground
by an authorised Ransomes Jacobsen Dealer.
6.
Once complete, switch the cutting unit PTO off and shut off the engine.
7.
Wash all of the Backlapping compound from all of the heads. Once they are thoroughly cleaned and
dry, apply a light film of oil to the cutting edges to help prevent rust.
8.
After Backlapping, the cylinder to bottom blade adjustment must be made again.
OPERATION 7
Part Number
5002488
5002489
5002490
5002491
en-67
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