Wright Serial # 53014 and higher - Manual (Page 17)

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port. Use fully synthetic oil: Mobil1 15W-50. 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 bearings and
electrical connections causing an electrical short,
rust and corrosion. When washing with water, avoid
spraying near the hydro cap and 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 and run with
blades engaged for approximately 10 minutes. Once
the wash is complete, always lubricate and grease all
applicable areas.