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prevent a rattle and should be installed hump down,
like a “U”. Using compressed air or water to clean
may or may not be necessary.
Oil Cooler Removal and Cleaning
Clean oil cooler weekly. Clean more often in dry
conditions. To remove oil cooler for a thorough
cleaning “STOP ENGINE”, lift thigh pad for access.
Loosen knob as far as necessary to slide the cooler
back about 3/8 – 1/2" and then lift up and out. (The
cooler knob does not need to be removed) Watch
cooler hoses so they do not snap pump fans. The
debris screen should be removed before blowing
cooler out from the bottom. When reinstalling the
cooler, make sure the cooler hoses do not interfere
with the fans and ensure the cooler housing is secure
under the four tab points of the cooler bracket.
Tighten knob securely.
How to Move the Mower if the Engine Won’t
Start
Rotate both of the manual “release” valve levers on
the rear 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. 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 2” – 2 1/2” below the top of the oil fill tube.
Use fully synthetic oil: Mobil 1 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 low-pressure compressed air. Once the
wash is complete, always lubricate and grease all
applicable areas.