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Jacobsen AGT42D Operator's Manual page 7

42" rotary mower

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FIGURE6
CUTTING HEIGHT
Depending upon thetype of
be used intwo different
ways:
1. To obtain
acut
which follows the contour of the
ground, the mower should beoperated with the rear
rollers onthe ground
and the
enough to permit
the mower to float.
NOTE
It isvery important
to permit the mower to float.
If the lift system islowered too far,
can't move independently
could
result
in premature
damage tothe mower
To adjust the cutting height,
transport position and set
desired cutting
height using the cutting
control lever(SeeFigs. 7 & 11).
LOWER ..
FIGURE7
2. To obtain
alevel
cut which doesn't follow small
changes in ground
contour, the mower should be
suspended from thetractor
rollers set in the
1.1/2"
cutting position to act as anti-
scalp rollers (See Fig. 12). If the tractor has a manual
lift, set the mower atthe desired cutting
NEW CUTTER BAR
EARLY WEAR
DANGEROUS WEAR
cut desired, the mower can
lift system lowered
the mower
from thetractor,
it
roller
wear and
deck.
raise the mower to
the rearrollers to the
height
~ RAISE
CUTTING HEIGHT
CONTROL LEVER
lift system with therear
height using
the implement lift handle perthe Instructions on
Page
5. If the tractor has a hydraulic lift,
cutting height by using the position
follows: (See Fig. 3).
a. Raise mowerto transport position.
b. LoosenLock Bar.
c. Turn position control knobclockwise to lowest
position.
d. Lowermowerto desired cutting height.
e. Turn position control knob counterclockwise until
lift is contacted (Resistanceis felt).
f. Tighten lock barfinger tight, do not use a wrench.
NOTE
No matter which type of cut Is desired, the
mower must be properly leveled.
maintenance section Instructions.
ENGINE SPEED
Make sure electric clutch is disengaged before starting
engine. For all cutting conditions, operate theengine at
full throttle to maintain sufficient blade speed.
In the
interest of safety, have your
yearly and make sure the
governor" engine speed Isnot
3400 rpm at full throttle.
NOTE1
The ANSI-Outdoor
Power Equipment
Safety Standards aresubject
and improvement.
If maximum permissible
tip speeds arechanged, it will becomenecessary to
change theengine speed listed.
Service Station will be kept informed of changes, If
such occur, and will beable to adjust your machine
to keep it up to datewith themost
standards on cutter blade speeds.
NOTE2
Engine speeds will vary, evenwith the best ofgover-
nors, and safe practice isto setengines 100to 200
rpm under the maximum acceptable rates.
NOTE3
The ANSI-OPEl Safety Standards require thedis-
charge chute extension aspackaged with this mow-
er to be bolted securely
operation.
See UNPACKING
INSTRUCTIONS.
TRACTOR GROUND SPEED
-
Gear Drive Tractors
For light to medium cutting,
operate the tractor
in 2nd or 3rd gear.
transmission
into low gear
mower will not cut clean oreven if
the tractor istoo fast.
Hydrostatic Driven Tractors
move the control
pedal forward and down
tractor groundspeed matches
that is, when the mower
is making aclean,
The mower
will not cut clean or even if the forward
speed of the tractor istoo fast.
set the
control as
See
tractor checked
full throttle,
no load,
"on
in excess of
maximum
Institute
to continuing
review
blade
Your Authorized
modern safety
inplace for
proper, safe
AND
SET-UP
Shift the
for heavy cutting.
The
the forward speedof
-
For all cutting conditions,
until the
the cutting
conditions,
level cut.
7

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