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Jacobsen AGT42D Operator's Manual page 8

42" rotary mower

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FIGURE8
CUTTER DRIVE BELT
REPLACEMENT
1. Detachthe mower from the tractor.
2. Remove screws
and lockwashers
belt cover and carefully
(See Fig. 8).
3. With apair
of pliers, grip the endof
spring and remove it from the
housing (See Fig. 9).
4. Removethe worn belt
and replace it with anew one.
5. Hook theendof
the tension spring inthe slot.
6. Replace the cover
and fasten
screws and lockwashers previously removed.
IDLER PULLEY
FIGURE9
CUTTER BAR
-
Cutter Bar Removal
This operation must be performed
with the mower detached from the tractor.
mower over on its
back and remove thescrew and
lockwasher at the center of each cutter bar.
When sharpening the cutter bar, do not follow the
original angle of grind as shown
Instead, grind new cutting
shown in "8".
Make sure that each cutting edge
8
MAINTENANCE
from around
the
remove it from the mower
the tension
slot in the
mower
it securely with the
Turn the
in "A" (See Fig. 10).
edges onthe diagonal
as
receives anequal
amount of grinding to prevent
an
unbalanced
bar
which
vibrations at high speeds and maydamage the mower.
A WARNING
Incorrect resharpening ofthe cutter
bar as illustrated in"A", Fig. 10,may
result in serious bodily injuryshould
the sudden impact
foreign object occur during operation
causing apossible
to be discharged from under
mower.
G-un___n...J
A
-
~
~DO
ORIGIN;:
~~~E-7...J
B
REQUIREDSHARPENING PATTERN
FIGURE 10
ADJUSTING
REAR ROLLER
HEIGHT
There are five
cutting heights on the control
The cutting heights are shown inFigure 11.
cutting height control leverto the position desired.
NOTE
Cutting heights are measured withthe rearrollers
setting onthe ground,
and theimplement
set in the corresponding position on the liftquadrant
or the next lower position for2" (5.08em) and 3"
(7.62 em) cutting position (see Figure
MOWER LEVELING ADJUSTMENT
The mower is pre-set at the factory
conditions
will never need adjusting.
mower should be checked periodically
adjusted as follows:
1. Side to Side: If one side of the mower is lower than
the other, remove the rearhanger
side of the mower and reassemble it in adifferent set
having
will
cause
excessive
ofthe bar anda
brokenblade tip
the
TO THISPATTERN
NOT RESHARPEN
1/2" (1.27
CM) MAXIMUM
REMOVAL DURING
RESHARPENING
quadrant.
Move the
lift lever
11).
and under normal
However, the
and if necessary
bracket onthe low

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Ut36037