Jacobsen AR3, Operation Manual

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JACOBSEN AR3
SAFETY, OPERATORS & MAINTENANCE MANUAL
9 ADJUSTMENTS
9.3 HEIGHT OF CUT
Cutting height for decks can be adjusted from 3/4 to
4 in. (19-101.6 mm) in 1/2 in. (13 mm) increments.
Actual cutting height may vary somewhat from the
heights given depending on turf conditions and
other factors.
Note: When cutting undulating areas, lower cutting
heights may cause scalping. Adjust height
accordingly to prevent turf damage.
To Change the Height of Cut
1. Park the tractor on a flat, level surface. Fully
lower cutting units. Placed blocks under deck
housing so they are supported on all sides.
2. Refer to the chart provided for desired cutting
height.
To prevent serious injury, lower deck until
it is resting completely on the supports.
This will prevent it from accidentally
lowering while making adjustments.
Disengage all drives, engage parking
brake, stop engine and remove ignition
key.
WARNING
Use proper lifting techniques when lifting
or lowering deck housing. The deck
housing assemblies weight approximately
25kg (55Lbs)
Range of Cut
Height of Cut
13mm (1/2")
Spacers Below
Deck Housing
13mm (1/2")
Spacers Above
Deck Housing
6mm (1/4")
Spacer Location
mm inch
19 3/4 0 9 Above Housing
25 1 0 9 Below Housing
32 1-1/4 1 8 Above Housing
38 1-1/2 1 8 Below Housing
44 1-3/4 2 7 Above Housing
50 2 2 7 Below Housing
57 2-1/4 3 6 Above Housing
64 2-1/2 3 6 Below Housing
70 2-3/4 4 5 Above Housing
76 3 4 5 Below Housing
83 3-1/4 5 4 Above Housing
90 3-1/2 5 4 Below Housing