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13. Fuel filter: Replace annually or as needed.
14. Hydraulic filter and oil: Change every 500 hours or yearly. Stop engine and remove key.
Tilt seat forward and clean around the filter and the fittings under the hydraulic tank. Remove
the filter and allow any oil to drain from the filter head. Then replace with new filter. Use only
Yazoo/Kees p/n 102606, filter which has a bypass valve it and the correct micron filter. Loosen
hose from fitting under hydraulic tank and allow tank to drain, reinstall hose to fitting. Fill tank
with 20w - 50 motor oil to 1/4” to 1” below neck of tank and replace cap. Block up the rear of
unit until wheels will rotate freely and start engine at a slow idle, move the motion control
levers forward and run for several minutes. Stop engine and recheck oil level. If wheels don’t
response an air lock has occured within the hydraulic system. Bleed air from lines, or let
stand overnight to allow the air time to dissipate out of the oil. Retry responses & check the
oil level. Note: Serious damage to the pumps and wheel motors can occur if the system is
ran with an air lock. See the specification sheet for the correct kind of oil. The factory uses
Quaker State Deluxe Motor Oil 20w-50.
15. Caster swivel nuts: Check at 250 hours for tightness. Remove cotter pin and tighten
castle nut. Do not over tighten. Rotate nut back so a slot in the castle nut lines up with the
hole in the spindle and install cotter pin.
MAINTENANCE
9. Tire pressure: Check every 25 to 50 hours. All four tires require 15 psi.
10. Battery: Check every 25 hours. Check electrolyte level. If needed fill to the full line marked
on the side of the battery. Fill with distilled water. Do not try starting the engine with a weak
battery. Recharge or replace the battery. The engine condensers and electronic iginition
can be damaged internally with less than or more than the required 12 volts.
11. Belts: Check every 25 hours. Stop engine and remove key. Check the condition of all
belts. The pump belt located under the seat and rubber engine flap. The front deck belt and
the mule drive belt.
Front caster pivots
Front wheels
Deck lift blocks
12. Lubrication (every 25 hours): Park brake assemblies
Struts
Deck lift pivot
Pump idler pivot
Deck idler pivot
(Clean grease zerk thoroughly before greasing)