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ADJUSTING AND OPERATING
HEIGHT OF CUT
Set the lift stop for the desired height of cut.
Refer to the Tractor Operator's Manual with
respect to the type of lift system on the tractor.
CLEANING
Clean the underside of the mower at the end of the
mowing season and when the build-up of cut
material on the underside is noticed. Also, remove
the belt cover and remove any accumulation.
BLADE CARE
The cutting blades must be kept sharp at all times.
The blades can be sharpened on the mower with a
few strokes of a file or they can be removed from
the mower and sharpened on a grinding wheel.
NOTE: Sharpen ends evenly so that the blades
remain balanced. However, if the cutting edge of a
blade is within 3/8-inch of the wind wing, it is
recommended that new blades be installed. New
blades are available at your IH dealer.
A
CAUTION! Be careful not to cut your¬
self when sharpening the blades or
cleaning the underside of the mower.
When removing the blades, hold the welded hex.
nuts on the pulleys with a 1-1/4-inch socket
wrench to remove the hex. nuts holding the blades.
After replacing blades, grease the threaded end of
the shaft to prevent rust build-up.
When replacing the blades, be sure they are
assembled so the cutting edges are in the direction
of rotation with the wind wings pointed upward
and the washers assembled on top and bottom of
blades, and tighten securely.
NOTE: If the spindle nuts are removed for any
reason, they should be retightened to 55 to 60
foot-pounds torque when replaced.
LUBRICATION
Also, before winter storage, remove idler pivot
shaft and grease the area where the torsion spring
and idler arm tube ride.
1. Spindle bearings
38-inch mower.
1. Spindle bearings
44-inch and 50-inch mowers.
GENERAL
After every 16 hours of operation, and before
putting in winter storage, lubricate the spindle
After first 1/2 hour and every 4 hours thereafter of
bearingsusing IH 251H EP greaseor equivalent No.
running, check the V-belt tension and adjust if
2 multi-purpose lithium grease.
npcessarv
54
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