2.
CUTTING HEIGHT ADJUSTMENT:
The cutting height is set by raising or lowering the
mower blades under the deck. The deck stays at the
same height above ground level. To adjust the cut-
ting height pull up the knobbed, spring-loaded pin in
the height adjustment bracket on the deck and pin it
into the desired hole of the five holes in the top of the
transmission housing (see drawing).
The hole nearest the PTO connection gives the shor-
test cutting height.
3.
The cutting height range is 2" to 4".
To avoid shock to the grass it is recommended that
only about 1/3 of the grass height, or a maximum of
2 inches, be removed at each cutting. For example,
reduce a 6 inches growth to 4 inches on the first
mowing, then reduce it to desired height later on with
a second cutting.
4.
Mowing wet lawns is not recommended because of
poor results and also because it increases the po-
tential for mildew and other grass diseases.
5.
It is a good idea to vary the mowing pattern with
each mowing. This will help to eliminate matting and
give a more even overall appearance than when the
mowing pattern is unvaried.
INSPECTION AND
MAINTENANCE
WARNING:
If a hard object is stuck, shut down the engine im-
mediately (see page 7) and inspect for a damaged
blade. Do not try to straighten and remount a bent
cutter because any impact, severe enough to bend
it, may have put tiny cracks in the hardened steel.
These could enlarge unit the cutter shatters during
operation.
Like all cutting tools, the mower must be kept in good
condition to perform well.
1.
Clean the underside of the deck often enough to pre-
vent heavy caking of dirt and grass on the surfaces.
Inspect the condition of the mower blade assemblies
each time.
2.
The left and right mower blade assemblies consist of
fluked cutter blades mounted on both ends of blade
holders by M10x30 mm lock nuts, special "super"
lock washer and self-locking nuts.
The mounting imparts a flail-like action to the cutters.
The left side blade assembly rotates counter clockwi-
se (ccw) and the right side assembly clockwise (cw).
WARNING
Do not substitute ordinary fasteners for those
called out in step 2.
3.
An extra set of cutter blades was packaged with the
mower. Put these on the blade holders when the
other set has been removed for grinding (cutting ed-
ges cannot be field).
Grind the bottom edges of the cutters.
4.
After grinding and remounting the cutters, check the
balance of each blade assembly. If one end is heavy,
remove the cutter from that end and grind it to impro-
ve blade balance. An out-of-balance condition cau-
ses excessive vibration.
5.
The cutters gradually will wear thin at the bend of the
flukes. Keep a watch for this. If you see cracks in this
area, discard cutters before further wear occurs.
Cracked pieces can break off, becoming high veloci-
ty missiles.
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