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12
l Temporary Height-of-Cut Adjustment: using the
caster shims (or "C" spacers) you can adjust
the blades downward temporarily .5" or 1"
below the original coarse setting as
described above. This assumes that the
blades are level with two shims (or "C"
spacers) on the bottom and one shim on the
top of the caster support arm. With the
blades level at this assumed starting point,
you should never move all of the shims to
the bottom since that would make the blades
higher at the front.
The angle of attack of the blades should
always be level or lower at the front. This
makes the blade cut the grass only once
and saves fuel and wear on the whole
mower. It also allows more efficient
mowing and grass catching or dispersal.
If you mow in an area of the country
where the lawn is very thick and spongy
you may have to set these two
adjustments as they would appear on the
grass and not on a hard surface due to
the tires “floating” up on or “sinking”
down into the lawn.
l Fine Adjustment:
Adjust the blades equally in
five settings up or down 0.25" each in a 1.25"
total range. The shims on the blade bolts are
moved from under the spindle to the top of the
spindle. If possible, leave at least one shim at
the top and the bottom of the spindle shaft.
Using the maximums and minimums of these
methods gives you a total range of 2.75" from
1.75" to 4.5" in eleven distinct settings. The
factory setting is 3" when measured to a hard
floor surface at the front of the deck.
Belt Tension Adjustment
The pump drive belt is self-adjusting, and
requires no adjustment, just replacement. The
blade drive belt is self-adjusting also and
requires no adjustment, just replacement.
How to Move the Mower if the Engine
Won’t Start
Rotate both of the hydro bypass valve levers on
the side of each hydraulic pump about ½ turn
counterclockwise. It is important not to over
tighten these levers. Damage may occur to the
pump if this valve is over tightened.
Bleeding Air from the Hydraulic
System
Whenever servicing the hydraulic system, it is of
the utmost importance to keep any dirt or debris
from getting into the system. Clean off all parts
before disassembly and assembly. When any of
the hydraulic parts are disconnected or removed
or when the oil is changed, air must be bled from
the system. If air is entrained in the system, loss
of power, excessive heat, and damage to the
hydraulic pumps may occur. First, make sure
the oil level in the reservoir is correct. The level
should be between 1”-1.5” below the top of the
oil fill tube. Use fully synthetic oil: Mobil1 15W-
50. Lift the mower so that the rear wheels are
off the ground. Be careful to support the mower
so that it will not fall or tip while the system is
bled of air. With the bypass valves open and the
engine running, slowly move the control levers
back and forth five or six times. Now close the
bypass valves and with the engine running,
slowly move the control levers back and forth
five or six times. It may be necessary to repeat
the above steps until all the air is purged and the
rear wheels are turning at normal speed. After
purging is complete, adjust the oil level in the
reservoir if necessary.
Battery Service
The battery is 12 volts and is a maintenance free
battery. Charge the battery only if it will not start
the mower properly. Remove the battery from
the mower before charging. Follow the
instructions of the battery charger for proper and
safe charging of the battery.
Cleaning the Mower
The underside of the mower deck should be
checked and cleaned twice daily, and more
often if the grass being mowed is lush or wet.
The entire mower should be cleaned daily at the
end of the work day.
Cleaning should be done with a leaf blower or
low-pressure compressed air. Wash with water
only when necessary and do not use a pressure
washer or nozzle as the water can enter
electrical connections causing an electrical
short, rust and corrosion. When washing with
water, do so when the unit has cooled down.
Washing a hot machine can cause various
unseen system damage. If water is used for
cleaning, immediately dry it with a leaf blower or