General Operating Information - Foley United 384 Operator's Manual

GENERAL OPERATING INFORMATION

WHEN TO SHARPEN THE BEDKNIFE
NOTE: To fully sharpen a reel mower, you need to grind
the reel blades (using a Reel Grinder) and reshape the
cutting edge of the bedknife (using the 384 Bedknife
Grinder).
NOTE: New bedknives should be ground before being
put into use.
When the grass is not being cut cleanly, or the cut ends
of the grass appear torn or ragged, the edges of the reel
blade and bedknife have become rounded and need
sharpening. See Fig. 8A. The purpose of sharpening is
to restore the match between the reel blades and the
cutting edge of the bedknife. See Fig. 8B.
BEDKNIFE GRINDING ANGLES
The bedknife has two faces that normally need to be ground
- the top face and the front face (on some models, the front
face may be curved and not need grinding.)
The proper grinding angles for the two faces will vary, de-
pending on the reel manufacturer - always follow the
manufacturers's recommended specifications for these
angles.
Typically however,
** There will be a 5-7 degree clearance angle
ground on the top face. It will usually be mea-
sured relative to the bedknife mounting surface.
See Fig. 9A.
** There will be a 10-30 degrees clearance angle
ground on the front face. It will usually be
measured relative to a line perpendicular to the
bedknife mounting surface. See Fig. 9B.
NOTE: If the manufacturer measures the clearance angle
relative to some other surface, you will have to adjust our
calculations accordingly.
Obtaining these angles is discussed in more detail in the
operating instructions.
A
B
A
B
11
FIG. 8
Fig. 9