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OPERATION
FN20/FN14 NITRO 02/10 Operation Section 4-13
© 2010 Alamo Group Inc.
OPERATION
4. Level the mower deck front to rear by adjusting the leveling rods linking the tongue to the rear axle.
DO NOT allow feet or other body part underneath the mower when making adjustments. To adjust rod
length, loosen jamnut and screw turnbuckles. To lower the front, lengthen the rods and to raise the
front, shorten the rods. DO NOT unscrew turnbuckles to the point that either rod threaded ends
becomes disconnected which will cause the mower to fall. Re-tighten jamnuts when deck is leveled.
5. IMPORTANT: Alternate adjustments between rods and adjust at equal lengths to maintain equal
tension. Improper adjustments may cause rods to snap or bend.
6. Place split collar assemblies on the center axle hydraulic cylinder rod to maintain a set cutting height
each time the mower is raised and lowered.
LEVELING WING SECTIONS WITH CENTER
To level the wing sections with the deck center,
adjust the leveling screw between the wing axle
and the center axle. To lower the wing, loosen the
jamnut and shorten the screw assembly, lengthen
the screw assembly to raise the wing. After wings
are leveled, retighten jamnuts to maintain settings.
7.2 Setting Deck Pitch
To facilitate safe and efficient operation, the mower
should be operated with the deck approximately
3/4” LOWER IN THE FRONT THAN THE REAR.
Operating the mower at this pitch will allow the
mower to cut the grass only once and requires less
work from the tractor. In addition, a more even
distribution of the clippings from the rear of the
mower will be achieved with this deck pitch.
Adjust the leveling rods linking the tongue to the
rear axle until the front of the mower is at least 3/4”
lower in the front that than the rear. To lower the
front, lengthen the leveling rods and to raise the
front shorten the leveling rods. IMPORTANT:
Adjust the leveling rods the same amount and
maintain equal tension in the rods. Improper
adjustment may cause rods to snap or bend. Retighten the jamnuts after the deck pitch has been set. OPS-R-
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