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GB-F-NL-60
BACKLAPPING
The keen edges of the spiral cutters can be
maintained by backlapping. With the units in the
lowered position proceed as follows:
1.
Smear the edges of the spiral cutters with a
medium grade of carborundum paste.*
2.
Ensure that the parking brake is applied.
3.
Sit in the driving seat and start the engine.
4.
Set the throttle control lever to give minimum
engine speed.
5.
Set the hydraulic drive switch to reverse drive
6.
Continue to run for a few minutes then stop the
engine to check and adjust the cutting cylinder to
the bottom blade.
7.
If the cylinders require further backlapping,
repeat operations 3,4,5,and 6 until the edges are
completely sharp.
*Obtainable from most motor accessory shops or
garages.
NOTE: Even badly dulled edges are usually
resharpened after 10 minutes treatment.
After backlapping is completed, clean off all traces of
carborundum paste from the bottom blades and spiral
cutters. It is essential that this is done thoroughly
otherwise the cutting cylinders and bottom blades will
quickly lose their effectiveness when they are rotating
normally for grass cutting.
GB
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