Service Intervals
Servicing Your Machine
IMPORTANT: Avoid damage! Operating in extreme conditions may require more frequent service intervals:
· Engine components may become dirty or plugged when operating in extreme heat, dust or other severe conditions.
· Engine oil can degrade if machine is operated constantly at slow or low engine speeds or for frequent short periods of time.
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Please use the following timetables to perform routine maintenance on your machine.
Service Intervals
Break-In after 8 Hours
· Change engine oil.
· Change engine filter (Z425 and Z445).
Every 50 Hours or Annually
· Lubricate mower deck spindles (Z425 and Z445).
Every 100 Hours or Annually
· Change engine oil.
· Change engine filter (Z425 and Z445).
· Replace spark plugs.
· Replace air filter elements, both foam and paper.
· Replace fuel filter.
· Check mower belt.
· Sharpen / Replace blades.
· Clean underside of deck.
· Check tire pressure.
· Clean engine cooling fins.
Every 200 Hours
· Check / adjust engine valve clearance. See your John Deere dealer for this service.
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