Back Lapping Of Reel Cutter (Cutting Cylinder) - Baroness LM315GC Owner's Operating Manual

LM315GC
Maintenance
Maintenance (Mower)
Back Lapping of Reel Cutter (Cutting
Cylinder)
Back lapping is work similar to sharpening a
cooking knife. If the edges of the reel cutter
(cutting cylinder) and the bed knife (bottom
blade) become blunt and make cutting difficult,
both the reel cutter (cutting cylinder) and the
bed knife (bottom blade) should be
simultaneously sharpened by reversing the reel
cutter (cutting cylinder) with an abrasive paste
applied.
However, back lapping is a temporary measure
and would not restore the sharpness
completely.
If the edges of the reel cutter (cutting cylinder)
and the bed knife (bottom blade) become blunt
and make cutting difficult, follow the steps
below to perform back lapping.
Caution
Both the reel cutter (cutting cylinder) and the
bed knife (bottom blade) are edged tools.
Handle them carefully, since they could cut
your hands and feet.
Caution
Be careful not to inhale exhaust gas during
back lapping.
Caution
During back lapping, the reel cutter (cutting
cylinder) rotates.
Keep hands and feet away from moving parts.
Caution
Do not perform back lapping with any other
persons.
Caution
Be sure to stop the engine before and during
shifting the transmission selector.
Otherwise, your hands may get caught in the
V belt.
Page 5-10
1. Have the following items ready: Strips of
newspaper, Abrasive [Back lapping powder
mixed with oil; or gel compound (Baroness
genuine abrasive)], Brush.
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Back Lapping of Reel Cutter (Cutting Cylinder)_001

1 Newspaper
2 Back lapping powder
3 Gel compound
4 Brush
Note:
The mixing ratio for the abrasive, in volume,
is one part back lapping powder to three or
four parts oil.
Caution
Before cutting newspaper as a test, be sure to
stop the engine and wear gloves to protect
your hands.
Pay attention not to let the reel cutter (cutting
cylinder) catch your gloves. Otherwise, you
may injure your hand or fingers.
Caution
Before adjusting the blade engagement, be
sure to set the reel reverse lever (attached to
the mower unit) to the "N" position.
Important
Check the sharpness of the blade by checking
the blade engagement after cutting grass.
2. Insert one or two strips of newspaper into the
space between the reel cutter (cutting
cylinder) and the bed knife (bottom blade) at
an angle of 90 degrees. Then, rotate the reel
cutter (cutting cylinder) counter-clockwise
(when you face the mower unit from the left)
to check the sharpness of the blades.
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Maintenance (Mower)