Case H40 - Sharpening Blades; Balancing Blades; Deck Housing Cleaning; Tire Pressure

CORRECT ANGLE . WRONG ANGLE TO
OF SHARPENED SHARPEN CUTTING
CUTTING EDGE EDGE
Figure 11.
1
9. Sharpening Blades: See Figure 11
Check the mower blades periodicalIy for
nicks or dullness. Damaged or dull
blades can cause a shattered rather than
clean cut and brown areas may develop.
The left picture, Figure 11, il!ustrates
the correct angle at which to resharpen
the blade cuttmg edges. If the cuttk~g
edge is sharpened at a blunt angle as
shown in the right picture, the grass
may zlso be shattered rather th,m
clfmly cut.
f 0, Edancing Blades: See Figre 12
+tctor a blade Is sharpened, check it for
balance by inserting a dowel or hlt in
t5e center hole and place between two
level edges as shown in Figure 12. A
balanced blade will center itsell so the
cutting edges are parallel with the edges.
DOWEL
A/
Jtl
ING
; E
I,
-I
Figure 12,
eJur/oN Unbalanced. blades are a hazard
and will cause premature wear
and failure of beariqs and
spindles, If the blades cannot
be balanced by resharpening
them, replace with new blades,
11, Check and clean out the inside of the deck
housing periodically. Remove any grass
wrappings between the blade mounting
plates and the spindle housings. Grass
wrappings, if allowed to accumulate, may
work their may under the bearings and
0 -
damage the seals. Excessive grass ac-
,
cumulation in the deck housing will waste
engine horsepower and cause plugging
and streaking as well as Corrosion.
12. Maintain the tires at equal and recom-
mended pressures. Refer to tractor
Operator's